diff options
347 files changed, 14657 insertions, 1044 deletions
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml index deda12db3a..c35200defb 100644 --- a/.github/workflows/main.yml +++ b/.github/workflows/main.yml @@ -1,4 +1,4 @@ -name: CI/PR +name: CI on: [push, pull_request] @@ -7,6 +7,7 @@ env: jobs: ci-config: + name: config runs-on: ubuntu-latest outputs: enabled: ${{ steps.check-ref.outputs.enabled }}${{ steps.skip-if-redundant.outputs.enabled }} @@ -77,6 +78,7 @@ jobs: } windows-build: + name: win build needs: ci-config if: needs.ci-config.outputs.enabled == 'yes' runs-on: windows-latest @@ -97,6 +99,7 @@ jobs: name: windows-artifacts path: artifacts windows-test: + name: win test runs-on: windows-latest needs: [windows-build] strategy: @@ -127,6 +130,7 @@ jobs: name: failed-tests-windows path: ${{env.FAILED_TEST_ARTIFACTS}} vs-build: + name: win+VS build needs: ci-config if: needs.ci-config.outputs.enabled == 'yes' env: @@ -178,6 +182,7 @@ jobs: name: vs-artifacts path: artifacts vs-test: + name: win+VS test runs-on: windows-latest needs: vs-build strategy: @@ -210,6 +215,7 @@ jobs: name: failed-tests-windows path: ${{env.FAILED_TEST_ARTIFACTS}} regular: + name: ${{matrix.vector.jobname}} (${{matrix.vector.pool}}) needs: ci-config if: needs.ci-config.outputs.enabled == 'yes' strategy: @@ -219,14 +225,25 @@ jobs: - jobname: linux-clang cc: clang pool: ubuntu-latest + - jobname: linux-sha256 + cc: clang + os: ubuntu + pool: ubuntu-latest - jobname: linux-gcc cc: gcc + cc_package: gcc-8 + pool: ubuntu-latest + - jobname: linux-TEST-vars + cc: gcc + os: ubuntu + cc_package: gcc-8 pool: ubuntu-latest - jobname: osx-clang cc: clang pool: macos-latest - jobname: osx-gcc cc: gcc + cc_package: gcc-9 pool: macos-latest - jobname: linux-gcc-default cc: gcc @@ -236,7 +253,9 @@ jobs: pool: ubuntu-latest env: CC: ${{matrix.vector.cc}} + CC_PACKAGE: ${{matrix.vector.cc_package}} jobname: ${{matrix.vector.jobname}} + runs_on_pool: ${{matrix.vector.pool}} runs-on: ${{matrix.vector.pool}} steps: - uses: actions/checkout@v2 @@ -251,6 +270,7 @@ jobs: name: failed-tests-${{matrix.vector.jobname}} path: ${{env.FAILED_TEST_ARTIFACTS}} dockerized: + name: ${{matrix.vector.jobname}} (${{matrix.vector.image}}) needs: ci-config if: needs.ci-config.outputs.enabled == 'yes' strategy: @@ -259,7 +279,8 @@ jobs: vector: - jobname: linux-musl image: alpine - - jobname: Linux32 + - jobname: linux32 + os: ubuntu32 image: daald/ubuntu32:xenial - jobname: pedantic image: fedora @@ -311,6 +332,7 @@ jobs: run: ci/install-dependencies.sh - run: make sparse documentation: + name: documentation needs: ci-config if: needs.ci-config.outputs.enabled == 'yes' env: diff --git a/.travis.yml b/.travis.yml deleted file mode 100644 index 908330a0a3..0000000000 --- a/.travis.yml +++ /dev/null @@ -1,60 +0,0 @@ -language: c - -cache: - directories: - - $HOME/travis-cache - -os: - - linux - - osx - -osx_image: xcode10.1 - -compiler: - - clang - - gcc - -matrix: - include: - - env: jobname=linux-gcc-default - os: linux - compiler: - addons: - before_install: - - env: jobname=linux-gcc-4.8 - os: linux - dist: trusty - compiler: - - env: jobname=Linux32 - os: linux - compiler: - addons: - services: - - docker - before_install: - script: ci/run-docker.sh - - env: jobname=linux-musl - os: linux - compiler: - addons: - services: - - docker - before_install: - script: ci/run-docker.sh - - env: jobname=StaticAnalysis - os: linux - compiler: - script: ci/run-static-analysis.sh - after_failure: - - env: jobname=Documentation - os: linux - compiler: - script: ci/test-documentation.sh - after_failure: - -before_install: ci/install-dependencies.sh -script: ci/run-build-and-tests.sh -after_failure: ci/print-test-failures.sh - -notifications: - email: false diff --git a/Documentation/CodingGuidelines b/Documentation/CodingGuidelines index 711cb9171e..0e27b5395d 100644 --- a/Documentation/CodingGuidelines +++ b/Documentation/CodingGuidelines @@ -499,6 +499,33 @@ For Python scripts: - Where required libraries do not restrict us to Python 2, we try to also be compatible with Python 3.1 and later. + +Program Output + + We make a distinction between a Git command's primary output and + output which is merely chatty feedback (for instance, status + messages, running transcript, or progress display), as well as error + messages. Roughly speaking, a Git command's primary output is that + which one might want to capture to a file or send down a pipe; its + chatty output should not interfere with these use-cases. + + As such, primary output should be sent to the standard output stream + (stdout), and chatty output should be sent to the standard error + stream (stderr). Examples of commands which produce primary output + include `git log`, `git show`, and `git branch --list` which generate + output on the stdout stream. + + Not all Git commands have primary output; this is often true of + commands whose main function is to perform an action. Some action + commands are silent, whereas others are chatty. An example of a + chatty action commands is `git clone` with its "Cloning into + '<path>'..." and "Checking connectivity..." status messages which it + sends to the stderr stream. + + Error messages from Git commands should always be sent to the stderr + stream. + + Error Messages - Do not end error messages with a full stop. diff --git a/Documentation/RelNotes/2.35.0.txt b/Documentation/RelNotes/2.35.0.txt index 34b5ffedfd..217334c934 100644 --- a/Documentation/RelNotes/2.35.0.txt +++ b/Documentation/RelNotes/2.35.0.txt @@ -36,6 +36,28 @@ UI, Workflows & Features option of commands from the "git log" family takes "human" and "auto" as valid values. + * "Zealous diff3" style of merge conflict presentation has been added. + + * The "git log --format=%(describe)" placeholder has been extended to + allow passing selected command-line options to the underlying "git + describe" command. + + * "default" and "reset" have been added to our color palette. + + * The cryptographic signing using ssh keys can specify literal keys + for keytypes whose name do not begin with the "ssh-" prefix by + using the "key::" prefix mechanism (e.g. "key::ecdsa-sha2-nistp256"). + + * "git fetch" without the "--update-head-ok" option ought to protect + a checked out branch from getting updated, to prevent the working + tree that checks it out to go out of sync. The code was written + before the use of "git worktree" got widespread, and only checked + the branch that was checked out in the current worktree, which has + been updated. + + * "git name-rev" has been tweaked to give output that is shorter and + easier to understand. + Performance, Internal Implementation, Development Support etc. @@ -48,7 +70,6 @@ Performance, Internal Implementation, Development Support etc. * The command line complation for "git send-email" options have been tweaked to make it easier to keep it in sync with the command itself. - * Ensure that the sparseness of the in-core index matches the index.sparse configuration specified by the repository immediately after the on-disk index file is read. @@ -63,6 +84,44 @@ Performance, Internal Implementation, Development Support etc. * Weather balloon to break people with compilers that do not support C99. + * The "reftable" backend for the refs API, without integrating into + the refs subsystem, has been added. + + * More tests are marked as leak-free. + + * The test framework learns to list unsatisfied test prerequisites, + and optionally error out when prerequisites that are expected to be + satisfied are not. + + * The default setting for trace2 event nesting was too low to cause + test failures, which is worked around by bumping it up in the test + framework. + + * Drop support for TravisCI and update test workflows at GitHub. + + * Many tests that used to need GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME + mechanism to force "git" to use 'master' as the default name for + the initial branch no longer need it; the use of the mechanism from + them have been removed. + + * Allow running our tests while disabling fsync. + + * Document the parameters given to the reflog entry iterator callback + functions. + (merge e6e94f34b2 jc/reflog-iterator-callback-doc later to maint). + + * The test helper for refs subsystem learned to write bogus and/or + nonexistent object name to refs to simulate error situations we + want to test Git in. + + * "diff --histogram" optimization. + + * Weather balloon to find compilers that do not grok variable + declaration in the for() loop. + + * diff and blame commands have been taught to work better with sparse + index. + Fixes since v2.34 ----------------- @@ -148,6 +207,40 @@ Fixes since v2.34 'noop', which has been corrected. (merge cc9dcdee61 en/rebase-x-fix later to maint). + * When the "git push" command is killed while the receiving end is + trying to report what happened to the ref update proposals, the + latter used to die, due to SIGPIPE. The code now ignores SIGPIPE + to increase our chances to run the post-receive hook after it + happens. + (merge d34182b9e3 rj/receive-pack-avoid-sigpipe-during-status-reporting later to maint). + + * "git worktree add" showed "Preparing worktree" message to the + standard output stream, but when it failed, the message from die() + went to the standard error stream. Depending on the order the + stdio streams are flushed at the program end, this resulted in + confusing output. It has been corrected by sending all the chatty + messages to the standard error stream. + (merge b50252484f es/worktree-chatty-to-stderr later to maint). + + * Coding guideline document has been updated to clarify what goes to + standard error in our system. + (merge e258eb4800 es/doc-stdout-vs-stderr later to maint). + + * The sparse-index/sparse-checkout feature had a bug in its use of + the matching code to determine which path is in or outside the + sparse checkout patterns. + (merge 8c5de0d265 ds/sparse-deep-pattern-checkout-fix later to maint). + + * "git rebase -x" by mistake started exporting the GIT_DIR and + GIT_WORK_TREE environment variables when the command was rewritten + in C, which has been corrected. + (merge 434e0636db en/rebase-x-wo-git-dir-env later to maint). + + * When "git log" implicitly enabled the "decoration" processing + without being explicitly asked with "--decorate" option, it failed + to read and honor the settings given by the "--decorate-refs" + option. + * Other code cleanup, docfix, build fix, etc. (merge 74db416c9c cw/protocol-v2-doc-fix later to maint). (merge f9b2b6684d ja/doc-cleanup later to maint). @@ -162,3 +255,7 @@ Fixes since v2.34 (merge 7d3fc7df70 jt/midx-doc-fix later to maint). (merge 7b089120d9 hn/create-reflog-simplify later to maint). (merge 9e12400da8 cb/mingw-gmtime-r later to maint). + (merge 0bf0de6cc7 tb/pack-revindex-on-disk-cleanup later to maint). + (merge 2c68f577fc ew/cbtree-remove-unused-and-broken-cb-unlink later to maint). + (merge eafd6e7e55 ab/die-with-bug later to maint). + (merge 91028f7659 jc/grep-patterntype-default-doc later to maint). diff --git a/Documentation/config.txt b/Documentation/config.txt index 1167e88e34..b168f02dc3 100644 --- a/Documentation/config.txt +++ b/Documentation/config.txt @@ -262,11 +262,19 @@ color:: colors (at most two, one for foreground and one for background) and attributes (as many as you want), separated by spaces. + -The basic colors accepted are `normal`, `black`, `red`, `green`, `yellow`, -`blue`, `magenta`, `cyan` and `white`. The first color given is the -foreground; the second is the background. All the basic colors except -`normal` have a bright variant that can be specified by prefixing the -color with `bright`, like `brightred`. +The basic colors accepted are `normal`, `black`, `red`, `green`, +`yellow`, `blue`, `magenta`, `cyan`, `white` and `default`. The first +color given is the foreground; the second is the background. All the +basic colors except `normal` and `default` have a bright variant that can +be specified by prefixing the color with `bright`, like `brightred`. ++ +The color `normal` makes no change to the color. It is the same as an +empty string, but can be used as the foreground color when specifying a +background color alone (for example, "normal red"). ++ +The color `default` explicitly resets the color to the terminal default, +for example to specify a cleared background. Although it varies between +terminals, this is usually not the same as setting to "white black". + Colors may also be given as numbers between 0 and 255; these use ANSI 256-color mode (but note that not all terminals may support this). If @@ -280,6 +288,11 @@ The position of any attributes with respect to the colors be turned off by prefixing them with `no` or `no-` (e.g., `noreverse`, `no-ul`, etc). + +The pseudo-attribute `reset` resets all colors and attributes before +applying the specified coloring. For example, `reset green` will result +in a green foreground and default background without any active +attributes. ++ An empty color string produces no color effect at all. This can be used to avoid coloring specific elements without disabling color entirely. + diff --git a/Documentation/config/gpg.txt b/Documentation/config/gpg.txt index 4f30c7dbdd..c9be554c73 100644 --- a/Documentation/config/gpg.txt +++ b/Documentation/config/gpg.txt @@ -64,6 +64,11 @@ A repository that only allows signed commits can store the file in the repository itself using a path relative to the top-level of the working tree. This way only committers with an already valid key can add or change keys in the keyring. + +Since OpensSSH 8.8 this file allows specifying a key lifetime using valid-after & +valid-before options. Git will mark signatures as valid if the signing key was +valid at the time of the signatures creation. This allows users to change a +signing key without invalidating all previously made signatures. ++ Using a SSH CA key with the cert-authority option (see ssh-keygen(1) "CERTIFICATES") is also valid. diff --git a/Documentation/config/grep.txt b/Documentation/config/grep.txt index 44abe45a7c..182edd813a 100644 --- a/Documentation/config/grep.txt +++ b/Documentation/config/grep.txt @@ -8,7 +8,8 @@ grep.patternType:: Set the default matching behavior. Using a value of 'basic', 'extended', 'fixed', or 'perl' will enable the `--basic-regexp`, `--extended-regexp`, `--fixed-strings`, or `--perl-regexp` option accordingly, while the - value 'default' will return to the default matching behavior. + value 'default' will use the `grep.extendedRegexp` option to choose + between 'basic' and 'extended'. grep.extendedRegexp:: If set to true, enable `--extended-regexp` option by default. This diff --git a/Documentation/config/merge.txt b/Documentation/config/merge.txt index e27cc63944..99e83dd36e 100644 --- a/Documentation/config/merge.txt +++ b/Documentation/config/merge.txt @@ -4,7 +4,14 @@ merge.conflictStyle:: shows a `<<<<<<<` conflict marker, changes made by one side, a `=======` marker, changes made by the other side, and then a `>>>>>>>` marker. An alternate style, "diff3", adds a `|||||||` - marker and the original text before the `=======` marker. + marker and the original text before the `=======` marker. The + "merge" style tends to produce smaller conflict regions than diff3, + both because of the exclusion of the original text, and because + when a subset of lines match on the two sides they are just pulled + out of the conflict region. Another alternate style, "zdiff3", is + similar to diff3 but removes matching lines on the two sides from + the conflict region when those matching lines appear near either + the beginning or end of a conflict region. merge.defaultToUpstream:: If merge is called without any commit argument, merge the upstream diff --git a/Documentation/config/user.txt b/Documentation/config/user.txt index ad78dce9ec..ec9233b060 100644 --- a/Documentation/config/user.txt +++ b/Documentation/config/user.txt @@ -36,10 +36,13 @@ user.signingKey:: commit, you can override the default selection with this variable. This option is passed unchanged to gpg's --local-user parameter, so you may specify a key using any method that gpg supports. - If gpg.format is set to "ssh" this can contain the literal ssh public - key (e.g.: "ssh-rsa XXXXXX identifier") or a file which contains it and - corresponds to the private key used for signing. The private key - needs to be available via ssh-agent. Alternatively it can be set to - a file containing a private key directly. If not set git will call - gpg.ssh.defaultKeyCommand (e.g.: "ssh-add -L") and try to use the first - key available. + If gpg.format is set to `ssh` this can contain the path to either + your private ssh key or the public key when ssh-agent is used. + Alternatively it can contain a public key prefixed with `key::` + directly (e.g.: "key::ssh-rsa XXXXXX identifier"). The private key + needs to be available via ssh-agent. If not set git will call + gpg.ssh.defaultKeyCommand (e.g.: "ssh-add -L") and try to use the + first key available. For backward compatibility, a raw key which + begins with "ssh-", such as "ssh-rsa XXXXXX identifier", is treated + as "key::ssh-rsa XXXXXX identifier", but this form is deprecated; + use the `key::` form instead. diff --git a/Documentation/git-apply.txt b/Documentation/git-apply.txt index aa1ae56a25..b6d77f4206 100644 --- a/Documentation/git-apply.txt +++ b/Documentation/git-apply.txt @@ -16,7 +16,7 @@ SYNOPSIS [--ignore-space-change | --ignore-whitespace] [--whitespace=(nowarn|warn|fix|error|error-all)] [--exclude=<path>] [--include=<path>] [--directory=<root>] - [--verbose] [--unsafe-paths] [<patch>...] + [--verbose | --quiet] [--unsafe-paths] [--allow-empty] [<patch>...] DESCRIPTION ----------- @@ -228,6 +228,11 @@ behavior: current patch being applied will be printed. This option will cause additional information to be reported. +-q:: +--quiet:: + Suppress stderr output. Messages about patch status and progress + will not be printed. + --recount:: Do not trust the line counts in the hunk headers, but infer them by inspecting the patch (e.g. after editing the patch without @@ -251,6 +256,10 @@ When `git apply` is used as a "better GNU patch", the user can pass the `--unsafe-paths` option to override this safety check. This option has no effect when `--index` or `--cached` is in use. +--allow-empty:: + Don't return error for patches containing no diff. This includes + empty patches and patches with commit text only. + CONFIGURATION ------------- diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt index a52dc49a3d..c497db7eae 100644 --- a/Documentation/git-checkout.txt +++ b/Documentation/git-checkout.txt @@ -266,8 +266,7 @@ When switching branches with `--merge`, staged changes may be lost. The same as `--merge` option above, but changes the way the conflicting hunks are presented, overriding the `merge.conflictStyle` configuration variable. Possible values are - "merge" (default) and "diff3" (in addition to what is shown by - "merge" style, shows the original contents). + "merge" (default), "diff3", and "zdiff3". -p:: --patch:: diff --git a/Documentation/git-merge-file.txt b/Documentation/git-merge-file.txt index f856032613..7e9093fab6 100644 --- a/Documentation/git-merge-file.txt +++ b/Documentation/git-merge-file.txt @@ -70,6 +70,9 @@ OPTIONS --diff3:: Show conflicts in "diff3" style. +--zdiff3:: + Show conflicts in "zdiff3" style. + --ours:: --theirs:: --union:: diff --git a/Documentation/git-merge.txt b/Documentation/git-merge.txt index e4f3352eb5..e8cecf5a51 100644 --- a/Documentation/git-merge.txt +++ b/Documentation/git-merge.txt @@ -240,7 +240,8 @@ from the RCS suite to present such a conflicted hunk, like this: ------------ Here are lines that are either unchanged from the common -ancestor, or cleanly resolved because only one side changed. +ancestor, or cleanly resolved because only one side changed, +or cleanly resolved because both sides changed the same way. <<<<<<< yours:sample.txt Conflict resolution is hard; let's go shopping. @@ -261,16 +262,37 @@ side wants to say it is hard and you'd prefer to go shopping, while the other side wants to claim it is easy. An alternative style can be used by setting the "merge.conflictStyle" -configuration variable to "diff3". In "diff3" style, the above conflict -may look like this: +configuration variable to either "diff3" or "zdiff3". In "diff3" +style, the above conflict may look like this: ------------ Here are lines that are either unchanged from the common -ancestor, or cleanly resolved because only one side changed. +ancestor, or cleanly resolved because only one side changed, <<<<<<< yours:sample.txt +or cleanly resolved because both sides changed the same way. Conflict resolution is hard; let's go shopping. -||||||| +||||||| base:sample.txt +or cleanly resolved because both sides changed identically. +Conflict resolution is hard. +======= +or cleanly resolved because both sides changed the same way. +Git makes conflict resolution easy. +>>>>>>> theirs:sample.txt +And here is another line that is cleanly resolved or unmodified. +------------ + +while in "zdiff3" style, it may look like this: + +------------ +Here are lines that are either unchanged from the common +ancestor, or cleanly resolved because only one side changed, +or cleanly resolved because both sides changed the same way. +<<<<<<< yours:sample.txt +Conflict resolution is hard; +let's go shopping. +||||||| base:sample.txt +or cleanly resolved because both sides changed identically. Conflict resolution is hard. ======= Git makes conflict resolution easy. diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt index a1af21fcef..9da4647061 100644 --- a/Documentation/git-rebase.txt +++ b/Documentation/git-rebase.txt @@ -714,9 +714,9 @@ information about the rebased commits and their parents (and instead generates new fake commits based off limited information in the generated patches), those commits cannot be identified; instead it has to fall back to a commit summary. Also, when merge.conflictStyle is -set to diff3, the apply backend will use "constructed merge base" to -label the content from the merge base, and thus provide no information -about the merge base commit whatsoever. +set to diff3 or zdiff3, the apply backend will use "constructed merge +base" to label the content from the merge base, and thus provide no +information about the merge base commit whatsoever. The merge backend works with the full commits on both sides of history and thus has no such limitations. diff --git a/Documentation/git-restore.txt b/Documentation/git-restore.txt index 55bde91ef9..5964810caa 100644 --- a/Documentation/git-restore.txt +++ b/Documentation/git-restore.txt @@ -92,8 +92,7 @@ in linkgit:git-checkout[1] for details. The same as `--merge` option above, but changes the way the conflicting hunks are presented, overriding the `merge.conflictStyle` configuration variable. Possible values - are "merge" (default) and "diff3" (in addition to what is - shown by "merge" style, shows the original contents). + are "merge" (default), "diff3", and "zdiff3". --ignore-unmerged:: When restoring files on the working tree from the index, do diff --git a/Documentation/git-switch.txt b/Documentation/git-switch.txt index 5c438cd505..5c90f76fbe 100644 --- a/Documentation/git-switch.txt +++ b/Documentation/git-switch.txt @@ -137,8 +137,7 @@ should result in deletion of the path). The same as `--merge` option above, but changes the way the conflicting hunks are presented, overriding the `merge.conflictStyle` configuration variable. Possible values are - "merge" (default) and "diff3" (in addition to what is shown by - "merge" style, shows the original contents). + "merge" (default), "diff3", and "zdiff3". -q:: --quiet:: diff --git a/Documentation/git-worktree.txt b/Documentation/git-worktree.txt index 8a7cbdd19c..9e862fbcf7 100644 --- a/Documentation/git-worktree.txt +++ b/Documentation/git-worktree.txt @@ -10,7 +10,7 @@ SYNOPSIS -------- [verse] 'git worktree add' [-f] [--detach] [--checkout] [--lock [--reason <string>]] [-b <new-branch>] <path> [<commit-ish>] -'git worktree list' [--porcelain] +'git worktree list' [-v | --porcelain] 'git worktree lock' [--reason <string>] <worktree> 'git worktree move' <worktree> <new-path> 'git worktree prune' [-n] [-v] [--expire <expire>] diff --git a/Documentation/pretty-formats.txt b/Documentation/pretty-formats.txt index 23f6335887..0b4c1c8d98 100644 --- a/Documentation/pretty-formats.txt +++ b/Documentation/pretty-formats.txt @@ -220,6 +220,12 @@ The placeholders are: inconsistent when tags are added or removed at the same time. + +** 'tags[=<bool-value>]': Instead of only considering annotated tags, + consider lightweight tags as well. +** 'abbrev=<number>': Instead of using the default number of hexadecimal digits + (which will vary according to the number of objects in the repository with a + default of 7) of the abbreviated object name, use <number> digits, or as many + digits as needed to form a unique object name. ** 'match=<pattern>': Only consider tags matching the given `glob(7)` pattern, excluding the "refs/tags/" prefix. ** 'exclude=<pattern>': Do not consider tags matching the given @@ -273,11 +279,6 @@ endif::git-rev-list[] If any option is provided multiple times the last occurrence wins. + -The boolean options accept an optional value `[=<value>]`. The values -`true`, `false`, `on`, `off` etc. are all accepted. See the "boolean" -sub-section in "EXAMPLES" in linkgit:git-config[1]. If a boolean -option is given with no value, it's enabled. -+ ** 'key=<key>': only show trailers with specified <key>. Matching is done case-insensitively and trailing colon is optional. If option is given multiple times trailer lines matching any of the keys are @@ -313,6 +314,11 @@ insert an empty string unless we are traversing reflog entries (e.g., by decoration format if `--decorate` was not already provided on the command line. +The boolean options accept an optional value `[=<bool-value>]`. The values +`true`, `false`, `on`, `off` etc. are all accepted. See the "boolean" +sub-section in "EXAMPLES" in linkgit:git-config[1]. If a boolean +option is given with no value, it's enabled. + If you add a `+` (plus sign) after '%' of a placeholder, a line-feed is inserted immediately before the expansion if and only if the placeholder expands to a non-empty string. diff --git a/Documentation/technical/rerere.txt b/Documentation/technical/rerere.txt index af5f9fc24f..35d4541433 100644 --- a/Documentation/technical/rerere.txt +++ b/Documentation/technical/rerere.txt @@ -14,9 +14,9 @@ conflicts before writing them to the rerere database. Different conflict styles and branch names are normalized by stripping the labels from the conflict markers, and removing the common ancestor -version from the `diff3` conflict style. Branches that are merged -in different order are normalized by sorting the conflict hunks. More -on each of those steps in the following sections. +version from the `diff3` or `zdiff3` conflict styles. Branches that +are merged in different order are normalized by sorting the conflict +hunks. More on each of those steps in the following sections. Once these two normalization operations are applied, a conflict ID is calculated based on the normalized conflict, which is later used by @@ -42,8 +42,8 @@ get a conflict like the following: >>>>>>> AC Doing the analogous with AC2 (forking a branch ABAC2 off of branch AB -and then merging branch AC2 into it), using the diff3 conflict style, -we get a conflict like the following: +and then merging branch AC2 into it), using the diff3 or zdiff3 +conflict style, we get a conflict like the following: <<<<<<< HEAD B @@ -256,6 +256,8 @@ all:: # # Define NO_DEFLATE_BOUND if your zlib does not have deflateBound. # +# Define NO_UNCOMPRESS2 if your zlib does not have uncompress2. +# # Define NO_NORETURN if using buggy versions of gcc 4.6+ and profile feedback, # as the compiler can crash (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49299) # @@ -732,6 +734,7 @@ TEST_BUILTINS_OBJS += test-read-cache.o TEST_BUILTINS_OBJS += test-read-graph.o TEST_BUILTINS_OBJS += test-read-midx.o TEST_BUILTINS_OBJS += test-ref-store.o +TEST_BUILTINS_OBJS += test-reftable.o TEST_BUILTINS_OBJS += test-regex.o TEST_BUILTINS_OBJS += test-repository.o TEST_BUILTINS_OBJS += test-revision-walking.o @@ -810,6 +813,8 @@ TEST_SHELL_PATH = $(SHELL_PATH) LIB_FILE = libgit.a XDIFF_LIB = xdiff/lib.a +REFTABLE_LIB = reftable/libreftable.a +REFTABLE_TEST_LIB = reftable/libreftable_test.a GENERATED_H += command-list.h GENERATED_H += config-list.h @@ -1189,7 +1194,7 @@ THIRD_PARTY_SOURCES += compat/regex/% THIRD_PARTY_SOURCES += sha1collisiondetection/% THIRD_PARTY_SOURCES += sha1dc/% -GITLIBS = common-main.o $(LIB_FILE) $(XDIFF_LIB) +GITLIBS = common-main.o $(LIB_FILE) $(XDIFF_LIB) $(REFTABLE_LIB) EXTLIBS = GIT_USER_AGENT = git/$(GIT_VERSION) @@ -1201,6 +1206,7 @@ endif # Set CFLAGS, LDFLAGS and other *FLAGS variables. These might be # tweaked by config.* below as well as the command-line, both of # which'll override these defaults. +# Older versions of GCC may require adding "-std=gnu99" at the end. CFLAGS = -g -O2 -Wall LDFLAGS = CC_LD_DYNPATH = -Wl,-rpath, @@ -1720,6 +1726,11 @@ ifdef NO_DEFLATE_BOUND BASIC_CFLAGS += -DNO_DEFLATE_BOUND endif +ifdef NO_UNCOMPRESS2 + BASIC_CFLAGS += -DNO_UNCOMPRESS2 + REFTABLE_OBJS += compat/zlib-uncompress2.o +endif + ifdef NO_POSIX_GOODIES BASIC_CFLAGS += -DNO_POSIX_GOODIES endif @@ -2431,7 +2442,36 @@ XDIFF_OBJS += xdiff/xutils.o .PHONY: xdiff-objs xdiff-objs: $(XDIFF_OBJS) +REFTABLE_OBJS += reftable/basics.o +REFTABLE_OBJS += reftable/error.o +REFTABLE_OBJS += reftable/block.o +REFTABLE_OBJS += reftable/blocksource.o +REFTABLE_OBJS += reftable/iter.o +REFTABLE_OBJS += reftable/publicbasics.o +REFTABLE_OBJS += reftable/merged.o +REFTABLE_OBJS += reftable/pq.o +REFTABLE_OBJS += reftable/reader.o +REFTABLE_OBJS += reftable/record.o +REFTABLE_OBJS += reftable/refname.o +REFTABLE_OBJS += reftable/generic.o +REFTABLE_OBJS += reftable/stack.o +REFTABLE_OBJS += reftable/tree.o +REFTABLE_OBJS += reftable/writer.o + +REFTABLE_TEST_OBJS += reftable/basics_test.o +REFTABLE_TEST_OBJS += reftable/block_test.o +REFTABLE_TEST_OBJS += reftable/dump.o +REFTABLE_TEST_OBJS += reftable/merged_test.o +REFTABLE_TEST_OBJS += reftable/pq_test.o +REFTABLE_TEST_OBJS += reftable/record_test.o +REFTABLE_TEST_OBJS += reftable/readwrite_test.o +REFTABLE_TEST_OBJS += reftable/refname_test.o +REFTABLE_TEST_OBJS += reftable/stack_test.o +REFTABLE_TEST_OBJS += reftable/test_framework.o +REFTABLE_TEST_OBJS += reftable/tree_test.o + TEST_OBJS := $(patsubst %$X,%.o,$(TEST_PROGRAMS)) $(patsubst %,t/helper/%,$(TEST_BUILTINS_OBJS)) + .PHONY: test-objs test-objs: $(TEST_OBJS) @@ -2447,9 +2487,16 @@ OBJECTS += $(PROGRAM_OBJS) OBJECTS += $(TEST_OBJS) OBJECTS += $(XDIFF_OBJS) OBJECTS += $(FUZZ_OBJS) +OBJECTS += $(REFTABLE_OBJS) $(REFTABLE_TEST_OBJS) + ifndef NO_CURL OBJECTS += http.o http-walker.o remote-curl.o endif + +SCALAR_SOURCES := contrib/scalar/scalar.c +SCALAR_OBJECTS := $(SCALAR_SOURCES:c=o) +OBJECTS += $(SCALAR_OBJECTS) + .PHONY: objects objects: $(OBJECTS) @@ -2583,12 +2630,22 @@ $(REMOTE_CURL_PRIMARY): remote-curl.o http.o http-walker.o GIT-LDFLAGS $(GITLIBS $(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \ $(CURL_LIBCURL) $(EXPAT_LIBEXPAT) $(LIBS) +contrib/scalar/scalar$X: $(SCALAR_OBJECTS) GIT-LDFLAGS $(GITLIBS) + $(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) \ + $(filter %.o,$^) $(LIBS) + $(LIB_FILE): $(LIB_OBJS) $(QUIET_AR)$(RM) $@ && $(AR) $(ARFLAGS) $@ $^ $(XDIFF_LIB): $(XDIFF_OBJS) $(QUIET_AR)$(RM) $@ && $(AR) $(ARFLAGS) $@ $^ +$(REFTABLE_LIB): $(REFTABLE_OBJS) + $(QUIET_AR)$(RM) $@ && $(AR) $(ARFLAGS) $@ $^ + +$(REFTABLE_TEST_LIB): $(REFTABLE_TEST_OBJS) + $(QUIET_AR)$(RM) $@ && $(AR) $(ARFLAGS) $@ $^ + export DEFAULT_EDITOR DEFAULT_PAGER Documentation/GIT-EXCLUDED-PROGRAMS: FORCE @@ -2887,7 +2944,7 @@ perf: all t/helper/test-tool$X: $(patsubst %,t/helper/%,$(TEST_BUILTINS_OBJS)) -t/helper/test-%$X: t/helper/test-%.o GIT-LDFLAGS $(GITLIBS) +t/helper/test-%$X: t/helper/test-%.o GIT-LDFLAGS $(GITLIBS) $(REFTABLE_TEST_LIB) $(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(filter %.a,$^) $(LIBS) check-sha1:: t/helper/test-tool$X @@ -3225,7 +3282,7 @@ cocciclean: clean: profile-clean coverage-clean cocciclean $(RM) *.res $(RM) $(OBJECTS) - $(RM) $(LIB_FILE) $(XDIFF_LIB) + $(RM) $(LIB_FILE) $(XDIFF_LIB) $(REFTABLE_LIB) $(REFTABLE_TEST_LIB) $(RM) $(ALL_PROGRAMS) $(SCRIPT_LIB) $(BUILT_INS) git$X $(RM) $(TEST_PROGRAMS) $(RM) $(FUZZ_PROGRAMS) @@ -1,4 +1,4 @@ -[](https://github.com/git/git/actions?query=branch%3Amaster+event%3Apush) +[](https://github.com/git/git/actions?query=branch%3Amaster+event%3Apush) Git - fast, scalable, distributed revision control system ========================================================= diff --git a/add-patch.c b/add-patch.c index 8c41cdfe39..573eef0cc4 100644 --- a/add-patch.c +++ b/add-patch.c @@ -413,7 +413,7 @@ static int parse_diff(struct add_p_state *s, const struct pathspec *ps) strvec_push(&args, ps->items[i].original); setup_child_process(s, &cp, NULL); - cp.argv = args.v; + strvec_pushv(&cp.args, args.v); res = capture_command(&cp, plain, 0); if (res) { strvec_clear(&args); @@ -431,7 +431,7 @@ static int parse_diff(struct add_p_state *s, const struct pathspec *ps) setup_child_process(s, &colored_cp, NULL); xsnprintf((char *)args.v[color_arg_index], 8, "--color"); - colored_cp.argv = args.v; + strvec_pushv(&colored_cp.args, args.v); colored = &s->colored; res = capture_command(&colored_cp, colored, 0); strvec_clear(&args); @@ -4752,8 +4752,10 @@ static int apply_patch(struct apply_state *state, } if (!list && !skipped_patch) { - error(_("unrecognized input")); - res = -128; + if (!state->allow_empty) { + error(_("No valid patches in input (allow with \"--allow-empty\")")); + res = -128; + } goto end; } @@ -5071,7 +5073,7 @@ int apply_parse_options(int argc, const char **argv, N_("leave the rejected hunks in corresponding *.rej files")), OPT_BOOL(0, "allow-overlap", &state->allow_overlap, N_("allow overlapping hunks")), - OPT__VERBOSE(&state->apply_verbosity, N_("be verbose")), + OPT__VERBOSITY(&state->apply_verbosity), OPT_BIT(0, "inaccurate-eof", options, N_("tolerate incorrectly detected missing new-line at the end of file"), APPLY_OPT_INACCURATE_EOF), @@ -5081,6 +5083,8 @@ int apply_parse_options(int argc, const char **argv, OPT_CALLBACK(0, "directory", state, N_("root"), N_("prepend <root> to all filenames"), apply_option_parse_directory), + OPT_BOOL(0, "allow-empty", &state->allow_empty, + N_("don't return error for empty patches")), OPT_END() }; @@ -66,6 +66,7 @@ struct apply_state { int threeway; int unidiff_zero; int unsafe_paths; + int allow_empty; /* Other non boolean parameters */ struct repository *repo; diff --git a/archive-tar.c b/archive-tar.c index 05d2455870..3c74db1746 100644 --- a/archive-tar.c +++ b/archive-tar.c @@ -430,7 +430,6 @@ static int write_tar_filter_archive(const struct archiver *ar, { struct strbuf cmd = STRBUF_INIT; struct child_process filter = CHILD_PROCESS_INIT; - const char *argv[2]; int r; if (!ar->data) @@ -440,14 +439,12 @@ static int write_tar_filter_archive(const struct archiver *ar, if (args->compression_level >= 0) strbuf_addf(&cmd, " -%d", args->compression_level); - argv[0] = cmd.buf; - argv[1] = NULL; - filter.argv = argv; + strvec_push(&filter.args, cmd.buf); filter.use_shell = 1; filter.in = -1; if (start_command(&filter) < 0) - die_errno(_("unable to start '%s' filter"), argv[0]); + die_errno(_("unable to start '%s' filter"), cmd.buf); close(1); if (dup2(filter.in, 1) < 0) die_errno(_("unable to redirect descriptor")); @@ -457,7 +454,7 @@ static int write_tar_filter_archive(const struct archiver *ar, close(1); if (finish_command(&filter) != 0) - die(_("'%s' filter reported error"), argv[0]); + die(_("'%s' filter reported error"), cmd.buf); strbuf_release(&cmd); return r; @@ -64,7 +64,7 @@ int install_branch_config(int flag, const char *local, const char *origin, const if (skip_prefix(remote, "refs/heads/", &shortname) && !strcmp(local, shortname) && !origin) { - warning(_("Not setting branch %s as its own upstream."), + warning(_("not setting branch %s as its own upstream"), local); return 0; } @@ -116,7 +116,7 @@ int install_branch_config(int flag, const char *local, const char *origin, const out_err: strbuf_release(&key); - error(_("Unable to write upstream branch configuration")); + error(_("unable to write upstream branch configuration")); advise(_(tracking_advice), origin ? origin : "", @@ -153,7 +153,7 @@ static void setup_tracking(const char *new_ref, const char *orig_ref, } if (tracking.matches > 1) - die(_("Not tracking: ambiguous information for ref %s"), + die(_("not tracking: ambiguous information for ref %s"), orig_ref); if (install_branch_config(config_flags, new_ref, tracking.remote, @@ -186,7 +186,7 @@ int read_branch_desc(struct strbuf *buf, const char *branch_name) int validate_branchname(const char *name, struct strbuf *ref) { if (strbuf_check_branch_ref(ref, name)) - die(_("'%s' is not a valid branch name."), name); + die(_("'%s' is not a valid branch name"), name); return ref_exists(ref->buf); } @@ -199,18 +199,23 @@ int validate_branchname(const char *name, struct strbuf *ref) */ int validate_new_branchname(const char *name, struct strbuf *ref, int force) { - const char *head; + struct worktree **worktrees; + const struct worktree *wt; if (!validate_branchname(name, ref)) return 0; if (!force) - die(_("A branch named '%s' already exists."), + die(_("a branch named '%s' already exists"), ref->buf + strlen("refs/heads/")); - head = resolve_ref_unsafe("HEAD", 0, NULL, NULL); - if (!is_bare_repository() && head && !strcmp(head, ref->buf)) - die(_("Cannot force update the current branch.")); + worktrees = get_worktrees(); + wt = find_shared_symref(worktrees, "HEAD", ref->buf); + if (wt && !wt->is_bare) + die(_("cannot force update the branch '%s'" + "checked out at '%s'"), + ref->buf + strlen("refs/heads/"), wt->path); + free_worktrees(worktrees); return 1; } @@ -230,7 +235,7 @@ static int validate_remote_tracking_branch(char *ref) } static const char upstream_not_branch[] = -N_("Cannot setup tracking information; starting point '%s' is not a branch."); +N_("cannot set up tracking information; starting point '%s' is not a branch"); static const char upstream_missing[] = N_("the requested upstream branch '%s' does not exist"); static const char upstream_advice[] = @@ -278,7 +283,7 @@ void create_branch(struct repository *r, } die(_(upstream_missing), start_name); } - die(_("Not a valid object name: '%s'."), start_name); + die(_("not a valid object name: '%s'"), start_name); } switch (dwim_ref(start_name, strlen(start_name), &oid, &real_ref, 0)) { @@ -298,12 +303,12 @@ void create_branch(struct repository *r, } break; default: - die(_("Ambiguous object name: '%s'."), start_name); + die(_("ambiguous object name: '%s'"), start_name); break; } if ((commit = lookup_commit_reference(r, &oid)) == NULL) - die(_("Not a valid branch point: '%s'."), start_name); + die(_("not a valid branch point: '%s'"), start_name); oidcpy(&oid, &commit->object.oid); if (reflog) @@ -357,14 +362,16 @@ void remove_branch_state(struct repository *r, int verbose) void die_if_checked_out(const char *branch, int ignore_current_worktree) { + struct worktree **worktrees = get_worktrees(); const struct worktree *wt; - wt = find_shared_symref("HEAD", branch); - if (!wt || (ignore_current_worktree && wt->is_current)) - return; - skip_prefix(branch, "refs/heads/", &branch); - die(_("'%s' is already checked out at '%s'"), - branch, wt->path); + wt = find_shared_symref(worktrees, "HEAD", branch); + if (wt && (!ignore_current_worktree || !wt->is_current)) { + skip_prefix(branch, "refs/heads/", &branch); + die(_("'%s' is already checked out at '%s'"), branch, wt->path); + } + + free_worktrees(worktrees); } int replace_each_worktree_head_symref(const char *oldref, const char *newref, diff --git a/builtin/add.c b/builtin/add.c index ef6b619c45..a010b2c325 100644 --- a/builtin/add.c +++ b/builtin/add.c @@ -302,15 +302,11 @@ int interactive_add(const char **argv, const char *prefix, int patch) static int edit_patch(int argc, const char **argv, const char *prefix) { char *file = git_pathdup("ADD_EDIT.patch"); - const char *apply_argv[] = { "apply", "--recount", "--cached", - NULL, NULL }; struct child_process child = CHILD_PROCESS_INIT; struct rev_info rev; int out; struct stat st; - apply_argv[3] = file; - git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ if (read_cache() < 0) @@ -338,7 +334,8 @@ static int edit_patch(int argc, const char **argv, const char *prefix) die(_("Empty patch. Aborted.")); child.git_cmd = 1; - child.argv = apply_argv; + strvec_pushl(&child.args, "apply", "--recount", "--cached", file, + NULL); if (run_command(&child)) die(_("Could not apply '%s'"), file); diff --git a/builtin/blame.c b/builtin/blame.c index f9ee3f8c68..7fafeac408 100644 --- a/builtin/blame.c +++ b/builtin/blame.c @@ -939,6 +939,9 @@ parse_done: revs.diffopt.flags.follow_renames = 0; argc = parse_options_end(&ctx); + prepare_repo_settings(the_repository); + the_repository->settings.command_requires_full_index = 0; + if (incremental || (output_option & OUTPUT_PORCELAIN)) { if (show_progress > 0) die(_("--progress can't be used with --incremental or porcelain formats")); diff --git a/builtin/branch.c b/builtin/branch.c index 81b5c111cb..6c8b0fcc11 100644 --- a/builtin/branch.c +++ b/builtin/branch.c @@ -192,6 +192,7 @@ static void delete_branch_config(const char *branchname) static int delete_branches(int argc, const char **argv, int force, int kinds, int quiet) { + struct worktree **worktrees; struct commit *head_rev = NULL; struct object_id oid; char *name = NULL; @@ -228,6 +229,9 @@ static int delete_branches(int argc, const char **argv, int force, int kinds, if (!head_rev) die(_("Couldn't look up commit object for HEAD")); } + + worktrees = get_worktrees(); + for (i = 0; i < argc; i++, strbuf_reset(&bname)) { char *target = NULL; int flags = 0; @@ -238,7 +242,7 @@ static int delete_branches(int argc, const char **argv, int force, int kinds, if (kinds == FILTER_REFS_BRANCHES) { const struct worktree *wt = - find_shared_symref("HEAD", name); + find_shared_symref(worktrees, "HEAD", name); if (wt) { error(_("Cannot delete branch '%s' " "checked out at '%s'"), @@ -299,6 +303,7 @@ static int delete_branches(int argc, const char **argv, int force, int kinds, free(name); strbuf_release(&bname); + free_worktrees(worktrees); return ret; } diff --git a/builtin/checkout.c b/builtin/checkout.c index 3fe87a632e..72beeb49aa 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -1536,7 +1536,7 @@ static struct option *add_common_options(struct checkout_opts *opts, OPT_BOOL(0, "progress", &opts->show_progress, N_("force progress reporting")), OPT_BOOL('m', "merge", &opts->merge, N_("perform a 3-way merge with the new branch")), OPT_STRING(0, "conflict", &opts->conflict_style, N_("style"), - N_("conflict style (merge or diff3)")), + N_("conflict style (merge, diff3, or zdiff3)")), OPT_END() }; struct option *newopts = parse_options_concat(prevopts, options); diff --git a/builtin/diff.c b/builtin/diff.c index dd8ce688ba..fa4683377e 100644 --- a/builtin/diff.c +++ b/builtin/diff.c @@ -437,6 +437,11 @@ int cmd_diff(int argc, const char **argv, const char *prefix) prefix = setup_git_directory_gently(&nongit); + if (!nongit) { + prepare_repo_settings(the_repository); + the_repository->settings.command_requires_full_index = 0; + } + if (!no_index) { /* * Treat git diff with at least one path outside of the diff --git a/builtin/difftool.c b/builtin/difftool.c index 4931c10845..4ee40fe3a0 100644 --- a/builtin/difftool.c +++ b/builtin/difftool.c @@ -202,15 +202,10 @@ static void changed_files(struct hashmap *result, const char *index_path, { struct child_process update_index = CHILD_PROCESS_INIT; struct child_process diff_files = CHILD_PROCESS_INIT; - struct strbuf index_env = STRBUF_INIT, buf = STRBUF_INIT; - const char *git_dir = absolute_path(get_git_dir()), *env[] = { - NULL, NULL - }; + struct strbuf buf = STRBUF_INIT; + const char *git_dir = absolute_path(get_git_dir()); FILE *fp; - strbuf_addf(&index_env, "GIT_INDEX_FILE=%s", index_path); - env[0] = index_env.buf; - strvec_pushl(&update_index.args, "--git-dir", git_dir, "--work-tree", workdir, "update-index", "--really-refresh", "-q", @@ -222,7 +217,7 @@ static void changed_files(struct hashmap *result, const char *index_path, update_index.use_shell = 0; update_index.clean_on_exit = 1; update_index.dir = workdir; - update_index.env = env; + strvec_pushf(&update_index.env_array, "GIT_INDEX_FILE=%s", index_path); /* Ignore any errors of update-index */ run_command(&update_index); @@ -235,7 +230,7 @@ static void changed_files(struct hashmap *result, const char *index_path, diff_files.clean_on_exit = 1; diff_files.out = -1; diff_files.dir = workdir; - diff_files.env = env; + strvec_pushf(&diff_files.env_array, "GIT_INDEX_FILE=%s", index_path); if (start_command(&diff_files)) die("could not obtain raw diff"); fp = xfdopen(diff_files.out, "r"); @@ -248,7 +243,6 @@ static void changed_files(struct hashmap *result, const char *index_path, fclose(fp); if (finish_command(&diff_files)) die("diff-files did not exit properly"); - strbuf_release(&index_env); strbuf_release(&buf); } diff --git a/builtin/fetch.c b/builtin/fetch.c index f7abbc31ff..f1fe73a3e0 100644 --- a/builtin/fetch.c +++ b/builtin/fetch.c @@ -28,6 +28,7 @@ #include "promisor-remote.h" #include "commit-graph.h" #include "shallow.h" +#include "worktree.h" #define FORCED_UPDATES_DELAY_WARNING_IN_MS (10 * 1000) @@ -552,7 +553,7 @@ static struct ref *get_ref_map(struct remote *remote, for (i = 0; i < fetch_refspec->nr; i++) get_fetch_map(ref_map, &fetch_refspec->items[i], &oref_tail, 1); } else if (refmap.nr) { - die("--refmap option is only meaningful with command-line refspec(s)."); + die("--refmap option is only meaningful with command-line refspec(s)"); } else { /* Use the defaults */ struct branch *branch = branch_get(NULL); @@ -583,7 +584,7 @@ static struct ref *get_ref_map(struct remote *remote, } else if (!prefetch) { ref_map = get_remote_ref(remote_refs, "HEAD"); if (!ref_map) - die(_("Couldn't find remote ref HEAD")); + die(_("couldn't find remote ref HEAD")); ref_map->fetch_head_status = FETCH_HEAD_MERGE; tail = &ref_map->next; } @@ -848,13 +849,12 @@ static void format_display(struct strbuf *display, char code, static int update_local_ref(struct ref *ref, struct ref_transaction *transaction, - const char *remote, - const struct ref *remote_ref, - struct strbuf *display, - int summary_width) + const char *remote, const struct ref *remote_ref, + struct strbuf *display, int summary_width, + struct worktree **worktrees) { struct commit *current = NULL, *updated; - struct branch *current_branch = branch_get(NULL); + const struct worktree *wt; const char *pretty_ref = prettify_refname(ref->name); int fast_forward = 0; @@ -868,16 +868,17 @@ static int update_local_ref(struct ref *ref, return 0; } - if (current_branch && - !strcmp(ref->name, current_branch->name) && - !(update_head_ok || is_bare_repository()) && - !is_null_oid(&ref->old_oid)) { + if (!update_head_ok && + (wt = find_shared_symref(worktrees, "HEAD", ref->name)) && + !wt->is_bare && !is_null_oid(&ref->old_oid)) { /* * If this is the head, and it's not okay to update * the head, and the old value of the head isn't empty... */ format_display(display, '!', _("[rejected]"), - _("can't fetch in current branch"), + wt->is_current ? + _("can't fetch in current branch") : + _("checked out in another worktree"), remote, pretty_ref, summary_width); return 1; } @@ -1067,16 +1068,17 @@ static void close_fetch_head(struct fetch_head *fetch_head) } static const char warn_show_forced_updates[] = -N_("Fetch normally indicates which branches had a forced update,\n" - "but that check has been disabled. To re-enable, use '--show-forced-updates'\n" - "flag or run 'git config fetch.showForcedUpdates true'."); +N_("fetch normally indicates which branches had a forced update,\n" + "but that check has been disabled; to re-enable, use '--show-forced-updates'\n" + "flag or run 'git config fetch.showForcedUpdates true'"); static const char warn_time_show_forced_updates[] = -N_("It took %.2f seconds to check forced updates. You can use\n" +N_("it took %.2f seconds to check forced updates; you can use\n" "'--no-show-forced-updates' or run 'git config fetch.showForcedUpdates false'\n" - " to avoid this check.\n"); + "to avoid this check\n"); static int store_updated_refs(const char *raw_url, const char *remote_name, - int connectivity_checked, struct ref *ref_map) + int connectivity_checked, struct ref *ref_map, + struct worktree **worktrees) { struct fetch_head fetch_head; int url_len, i, rc = 0; @@ -1205,7 +1207,8 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, strbuf_reset(¬e); if (ref) { rc |= update_local_ref(ref, transaction, what, - rm, ¬e, summary_width); + rm, ¬e, summary_width, + worktrees); free(ref); } else if (write_fetch_head || dry_run) { /* @@ -1298,7 +1301,9 @@ static int check_exist_and_connected(struct ref *ref_map) return check_connected(iterate_ref_map, &rm, &opt); } -static int fetch_and_consume_refs(struct transport *transport, struct ref *ref_map) +static int fetch_and_consume_refs(struct transport *transport, + struct ref *ref_map, + struct worktree **worktrees) { int connectivity_checked = 1; int ret; @@ -1319,10 +1324,8 @@ static int fetch_and_consume_refs(struct transport *transport, struct ref *ref_m } trace2_region_enter("fetch", "consume_refs", the_repository); - ret = store_updated_refs(transport->url, - transport->remote->name, - connectivity_checked, - ref_map); + ret = store_updated_refs(transport->url, transport->remote->name, + connectivity_checked, ref_map, worktrees); trace2_region_leave("fetch", "consume_refs", the_repository); out: @@ -1385,18 +1388,18 @@ static int prune_refs(struct refspec *rs, struct ref *ref_map, return result; } -static void check_not_current_branch(struct ref *ref_map) +static void check_not_current_branch(struct ref *ref_map, + struct worktree **worktrees) { - struct branch *current_branch = branch_get(NULL); - - if (is_bare_repository() || !current_branch) - return; - + const struct worktree *wt; for (; ref_map; ref_map = ref_map->next) - if (ref_map->peer_ref && !strcmp(current_branch->refname, - ref_map->peer_ref->name)) - die(_("Refusing to fetch into current branch %s " - "of non-bare repository"), current_branch->refname); + if (ref_map->peer_ref && + (wt = find_shared_symref(worktrees, "HEAD", + ref_map->peer_ref->name)) && + !wt->is_bare) + die(_("refusing to fetch into branch '%s' " + "checked out at '%s'"), + ref_map->peer_ref->name, wt->path); } static int truncate_fetch_head(void) @@ -1414,10 +1417,10 @@ static void set_option(struct transport *transport, const char *name, const char { int r = transport_set_option(transport, name, value); if (r < 0) - die(_("Option \"%s\" value \"%s\" is not valid for %s"), + die(_("option \"%s\" value \"%s\" is not valid for %s"), name, value, transport->url); if (r > 0) - warning(_("Option \"%s\" is ignored for %s\n"), + warning(_("option \"%s\" is ignored for %s\n"), name, transport->url); } @@ -1451,7 +1454,7 @@ static void add_negotiation_tips(struct git_transport_options *smart_options) old_nr = oids->nr; for_each_glob_ref(add_oid, s, oids); if (old_nr == oids->nr) - warning("Ignoring --negotiation-tip=%s because it does not match any refs", + warning("ignoring --negotiation-tip=%s because it does not match any refs", s); } smart_options->negotiation_tips = oids; @@ -1489,12 +1492,13 @@ static struct transport *prepare_transport(struct remote *remote, int deepen) if (transport->smart_options) add_negotiation_tips(transport->smart_options); else - warning("Ignoring --negotiation-tip because the protocol does not support it."); + warning("ignoring --negotiation-tip because the protocol does not support it"); } return transport; } -static void backfill_tags(struct transport *transport, struct ref *ref_map) +static void backfill_tags(struct transport *transport, struct ref *ref_map, + struct worktree **worktrees) { int cannot_reuse; @@ -1515,7 +1519,7 @@ static void backfill_tags(struct transport *transport, struct ref *ref_map) transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, NULL); transport_set_option(transport, TRANS_OPT_DEPTH, "0"); transport_set_option(transport, TRANS_OPT_DEEPEN_RELATIVE, NULL); - fetch_and_consume_refs(transport, ref_map); + fetch_and_consume_refs(transport, ref_map, worktrees); if (gsecondary) { transport_disconnect(gsecondary); @@ -1533,6 +1537,7 @@ static int do_fetch(struct transport *transport, struct transport_ls_refs_options transport_ls_refs_options = TRANSPORT_LS_REFS_OPTIONS_INIT; int must_list_refs = 1; + struct worktree **worktrees = get_worktrees(); if (tags == TAGS_DEFAULT) { if (transport->remote->fetch_tags == 2) @@ -1588,7 +1593,7 @@ static int do_fetch(struct transport *transport, ref_map = get_ref_map(transport->remote, remote_refs, rs, tags, &autotags); if (!update_head_ok) - check_not_current_branch(ref_map); + check_not_current_branch(ref_map, worktrees); if (tags == TAGS_DEFAULT && autotags) transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1"); @@ -1606,7 +1611,7 @@ static int do_fetch(struct transport *transport, transport->url); } } - if (fetch_and_consume_refs(transport, ref_map)) { + if (fetch_and_consume_refs(transport, ref_map, worktrees)) { free_refs(ref_map); retcode = 1; goto cleanup; @@ -1638,6 +1643,16 @@ static int do_fetch(struct transport *transport, } } if (source_ref) { + if (!branch) { + const char *shortname = source_ref->name; + skip_prefix(shortname, "refs/heads/", &shortname); + + warning(_("could not set upstream of HEAD to '%s' from '%s' when " + "it does not point to any branch."), + shortname, transport->remote->name); + goto skip; + } + if (!strcmp(source_ref->name, "HEAD") || starts_with(source_ref->name, "refs/heads/")) install_branch_config(0, @@ -1651,11 +1666,11 @@ static int do_fetch(struct transport *transport, else warning(_("unknown branch type")); } else { - warning(_("no source branch found.\n" - "you need to specify exactly one branch with the --set-upstream option.")); + warning(_("no source branch found;\n" + "you need to specify exactly one branch with the --set-upstream option")); } } - skip: +skip: free_refs(ref_map); /* if neither --no-tags nor --tags was specified, do automated tag @@ -1665,11 +1680,12 @@ static int do_fetch(struct transport *transport, ref_map = NULL; find_non_local_tags(remote_refs, &ref_map, &tail); if (ref_map) - backfill_tags(transport, ref_map); + backfill_tags(transport, ref_map, worktrees); free_refs(ref_map); } - cleanup: +cleanup: + free_worktrees(worktrees); return retcode; } @@ -1790,7 +1806,7 @@ static int fetch_failed_to_start(struct strbuf *out, void *cb, void *task_cb) struct parallel_fetch_state *state = cb; const char *remote = task_cb; - state->result = error(_("Could not fetch %s"), remote); + state->result = error(_("could not fetch %s"), remote); return 0; } @@ -1845,7 +1861,7 @@ static int fetch_multiple(struct string_list *list, int max_children) if (verbosity >= 0) printf(_("Fetching %s\n"), name); if (run_command_v_opt(argv.v, RUN_GIT_CMD)) { - error(_("Could not fetch %s"), name); + error(_("could not fetch %s"), name); result = 1; } strvec_pop(&argv); @@ -1906,8 +1922,8 @@ static int fetch_one(struct remote *remote, int argc, const char **argv, int remote_via_config = remote_is_configured(remote, 0); if (!remote) - die(_("No remote repository specified. Please, specify either a URL or a\n" - "remote name from which new revisions should be fetched.")); + die(_("no remote repository specified; please specify either a URL or a\n" + "remote name from which new revisions should be fetched")); gtransport = prepare_transport(remote, 1); @@ -1942,7 +1958,7 @@ static int fetch_one(struct remote *remote, int argc, const char **argv, if (!strcmp(argv[i], "tag")) { i++; if (i >= argc) - die(_("You need to specify a tag name.")); + die(_("you need to specify a tag name")); refspec_appendf(&rs, "refs/tags/%s:refs/tags/%s", argv[i], argv[i]); @@ -2010,7 +2026,7 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) if (deepen_relative) { if (deepen_relative < 0) - die(_("Negative depth in --deepen is not supported")); + die(_("negative depth in --deepen is not supported")); if (depth) die(_("--deepen and --depth are mutually exclusive")); depth = xstrfmt("%d", deepen_relative); @@ -2047,14 +2063,15 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) /* All arguments are assumed to be remotes or groups */ for (i = 0; i < argc; i++) if (!add_remote_or_group(argv[i], &list)) - die(_("No such remote or remote group: %s"), argv[i]); + die(_("no such remote or remote group: %s"), + argv[i]); } else { /* Single remote or group */ (void) add_remote_or_group(argv[0], &list); if (list.nr > 1) { /* More than one remote */ if (argc > 1) - die(_("Fetching a group and specifying refspecs does not make sense")); + die(_("fetching a group and specifying refspecs does not make sense")); } else { /* Zero or one remotes */ remote = remote_get(argv[0]); @@ -2075,7 +2092,7 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) if (gtransport->smart_options) { gtransport->smart_options->acked_commits = &acked_commits; } else { - warning(_("Protocol does not support --negotiate-only, exiting.")); + warning(_("protocol does not support --negotiate-only, exiting")); return 1; } if (server_options.nr) diff --git a/builtin/fsck.c b/builtin/fsck.c index 27b9e78094..9e54892311 100644 --- a/builtin/fsck.c +++ b/builtin/fsck.c @@ -944,15 +944,13 @@ int cmd_fsck(int argc, const char **argv, const char *prefix) if (the_repository->settings.core_commit_graph) { struct child_process commit_graph_verify = CHILD_PROCESS_INIT; - const char *verify_argv[] = { "commit-graph", "verify", NULL, NULL, NULL }; prepare_alt_odb(the_repository); for (odb = the_repository->objects->odb; odb; odb = odb->next) { child_process_init(&commit_graph_verify); - commit_graph_verify.argv = verify_argv; commit_graph_verify.git_cmd = 1; - verify_argv[2] = "--object-dir"; - verify_argv[3] = odb->path; + strvec_pushl(&commit_graph_verify.args, "commit-graph", + "verify", "--object-dir", odb->path, NULL); if (run_command(&commit_graph_verify)) errors_found |= ERROR_COMMIT_GRAPH; } @@ -960,15 +958,13 @@ int cmd_fsck(int argc, const char **argv, const char *prefix) if (the_repository->settings.core_multi_pack_index) { struct child_process midx_verify = CHILD_PROCESS_INIT; - const char *midx_argv[] = { "multi-pack-index", "verify", NULL, NULL, NULL }; prepare_alt_odb(the_repository); for (odb = the_repository->objects->odb; odb; odb = odb->next) { child_process_init(&midx_verify); - midx_verify.argv = midx_argv; midx_verify.git_cmd = 1; - midx_argv[2] = "--object-dir"; - midx_argv[3] = odb->path; + strvec_pushl(&midx_verify.args, "multi-pack-index", + "verify", "--object-dir", odb->path, NULL); if (run_command(&midx_verify)) errors_found |= ERROR_MULTI_PACK_INDEX; } diff --git a/builtin/help.c b/builtin/help.c index 75cd2fb407..d387131dd8 100644 --- a/builtin/help.c +++ b/builtin/help.c @@ -212,11 +212,10 @@ static int check_emacsclient_version(void) { struct strbuf buffer = STRBUF_INIT; struct child_process ec_process = CHILD_PROCESS_INIT; - const char *argv_ec[] = { "emacsclient", "--version", NULL }; int version; /* emacsclient prints its version number on stderr */ - ec_process.argv = argv_ec; + strvec_pushl(&ec_process.args, "emacsclient", "--version", NULL); ec_process.err = -1; ec_process.stdout_to_stderr = 1; if (start_command(&ec_process)) diff --git a/builtin/log.c b/builtin/log.c index f75d87e8d7..93ace0dde7 100644 --- a/builtin/log.c +++ b/builtin/log.c @@ -245,10 +245,24 @@ static void cmd_log_init_finish(int argc, const char **argv, const char *prefix, rev->abbrev_commit = 0; } - if (rev->commit_format == CMIT_FMT_USERFORMAT && !w.decorate) - decoration_style = 0; + if (rev->commit_format == CMIT_FMT_USERFORMAT) { + if (!w.decorate) { + /* + * Disable decoration loading if the format will not + * show them anyway. + */ + decoration_style = 0; + } else if (!decoration_style) { + /* + * If we are going to show them, make sure we do load + * them here, but taking care not to override a + * specific style set by config or --decorate. + */ + decoration_style = DECORATE_SHORT_REFS; + } + } - if (decoration_style) { + if (decoration_style || rev->simplify_by_decoration) { const struct string_list *config_exclude = repo_config_get_value_multi(the_repository, "log.excludeDecoration"); @@ -260,7 +274,8 @@ static void cmd_log_init_finish(int argc, const char **argv, const char *prefix, item->string); } - rev->show_decorations = 1; + if (decoration_style) + rev->show_decorations = 1; load_ref_decorations(&decoration_filter, decoration_style); } diff --git a/builtin/merge-file.c b/builtin/merge-file.c index 06a2f90c48..e695867ee5 100644 --- a/builtin/merge-file.c +++ b/builtin/merge-file.c @@ -34,6 +34,8 @@ int cmd_merge_file(int argc, const char **argv, const char *prefix) struct option options[] = { OPT_BOOL('p', "stdout", &to_stdout, N_("send results to standard output")), OPT_SET_INT(0, "diff3", &xmp.style, N_("use a diff3 based merge"), XDL_MERGE_DIFF3), + OPT_SET_INT(0, "zdiff3", &xmp.style, N_("use a zealous diff3 based merge"), + XDL_MERGE_ZEALOUS_DIFF3), OPT_SET_INT(0, "ours", &xmp.favor, N_("for conflicts, use our version"), XDL_MERGE_FAVOR_OURS), OPT_SET_INT(0, "theirs", &xmp.favor, N_("for conflicts, use their version"), diff --git a/builtin/merge.c b/builtin/merge.c index ea3112e0c0..5f0476b0b7 100644 --- a/builtin/merge.c +++ b/builtin/merge.c @@ -310,10 +310,9 @@ static int save_state(struct object_id *stash) int len; struct child_process cp = CHILD_PROCESS_INIT; struct strbuf buffer = STRBUF_INIT; - const char *argv[] = {"stash", "create", NULL}; int rc = -1; - cp.argv = argv; + strvec_pushl(&cp.args, "stash", "create", NULL); cp.out = -1; cp.git_cmd = 1; diff --git a/builtin/name-rev.c b/builtin/name-rev.c index b221d30014..27f60153a6 100644 --- a/builtin/name-rev.c +++ b/builtin/name-rev.c @@ -44,11 +44,20 @@ static struct rev_name *get_commit_rev_name(const struct commit *commit) return is_valid_rev_name(name) ? name : NULL; } +static int effective_distance(int distance, int generation) +{ + return distance + (generation > 0 ? MERGE_TRAVERSAL_WEIGHT : 0); +} + static int is_better_name(struct rev_name *name, timestamp_t taggerdate, + int generation, int distance, int from_tag) { + int name_distance = effective_distance(name->distance, name->generation); + int new_distance = effective_distance(distance, generation); + /* * When comparing names based on tags, prefer names * based on the older tag, even if it is farther away. @@ -56,7 +65,7 @@ static int is_better_name(struct rev_name *name, if (from_tag && name->from_tag) return (name->taggerdate > taggerdate || (name->taggerdate == taggerdate && - name->distance > distance)); + name_distance > new_distance)); /* * We know that at least one of them is a non-tag at this point. @@ -69,8 +78,8 @@ static int is_better_name(struct rev_name *name, * We are now looking at two non-tags. Tiebreak to favor * shorter hops. */ - if (name->distance != distance) - return name->distance > distance; + if (name_distance != new_distance) + return name_distance > new_distance; /* ... or tiebreak to favor older date */ if (name->taggerdate != taggerdate) @@ -88,7 +97,7 @@ static struct rev_name *create_or_update_name(struct commit *commit, struct rev_name *name = commit_rev_name_at(&rev_names, commit); if (is_valid_rev_name(name)) { - if (!is_better_name(name, taggerdate, distance, from_tag)) + if (!is_better_name(name, taggerdate, generation, distance, from_tag)) return NULL; /* diff --git a/builtin/notes.c b/builtin/notes.c index 71c59583a1..118db9e455 100644 --- a/builtin/notes.c +++ b/builtin/notes.c @@ -134,14 +134,13 @@ static void copy_obj_to_fd(int fd, const struct object_id *oid) static void write_commented_object(int fd, const struct object_id *object) { - const char *show_args[5] = - {"show", "--stat", "--no-notes", oid_to_hex(object), NULL}; struct child_process show = CHILD_PROCESS_INIT; struct strbuf buf = STRBUF_INIT; struct strbuf cbuf = STRBUF_INIT; /* Invoke "git show --stat --no-notes $object" */ - show.argv = show_args; + strvec_pushl(&show.args, "show", "--stat", "--no-notes", + oid_to_hex(object), NULL); show.no_stdin = 1; show.out = -1; show.err = 0; @@ -861,15 +860,19 @@ static int merge(int argc, const char **argv, const char *prefix) update_ref(msg.buf, default_notes_ref(), &result_oid, NULL, 0, UPDATE_REFS_DIE_ON_ERR); else { /* Merge has unresolved conflicts */ + struct worktree **worktrees; const struct worktree *wt; /* Update .git/NOTES_MERGE_PARTIAL with partial merge result */ update_ref(msg.buf, "NOTES_MERGE_PARTIAL", &result_oid, NULL, 0, UPDATE_REFS_DIE_ON_ERR); /* Store ref-to-be-updated into .git/NOTES_MERGE_REF */ - wt = find_shared_symref("NOTES_MERGE_REF", default_notes_ref()); + worktrees = get_worktrees(); + wt = find_shared_symref(worktrees, "NOTES_MERGE_REF", + default_notes_ref()); if (wt) die(_("a notes merge into %s is already in-progress at %s"), default_notes_ref(), wt->path); + free_worktrees(worktrees); if (create_symref("NOTES_MERGE_REF", default_notes_ref(), NULL)) die(_("failed to store link to current notes ref (%s)"), default_notes_ref()); diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c index 857be7826f..b36ed828d8 100644 --- a/builtin/pack-objects.c +++ b/builtin/pack-objects.c @@ -3397,7 +3397,7 @@ static void read_object_list_from_stdin(void) if (feof(stdin)) break; if (!ferror(stdin)) - die("BUG: fgets returned NULL, not EOF, not error!"); + BUG("fgets returned NULL, not EOF, not error!"); if (errno != EINTR) die_errno("fgets"); clearerr(stdin); diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c index 49b846d960..4f92e6f059 100644 --- a/builtin/receive-pack.c +++ b/builtin/receive-pack.c @@ -175,7 +175,7 @@ static int receive_pack_config(const char *var, const char *value, void *cb) strbuf_addf(&fsck_msg_types, "%c%s=%s", fsck_msg_types.len ? ',' : '=', var, value); else - warning("Skipping unknown msg id '%s'", var); + warning("skipping unknown msg id '%s'", var); return 0; } @@ -769,8 +769,10 @@ static void prepare_push_cert_sha1(struct child_process *proc) memset(&sigcheck, '\0', sizeof(sigcheck)); bogs = parse_signed_buffer(push_cert.buf, push_cert.len); - check_signature(push_cert.buf, bogs, push_cert.buf + bogs, - push_cert.len - bogs, &sigcheck); + sigcheck.payload = xmemdupz(push_cert.buf, bogs); + sigcheck.payload_len = bogs; + check_signature(&sigcheck, push_cert.buf + bogs, + push_cert.len - bogs); nonce_status = check_nonce(push_cert.buf, bogs); } @@ -812,16 +814,13 @@ static int run_and_feed_hook(const char *hook_name, feed_fn feed, { struct child_process proc = CHILD_PROCESS_INIT; struct async muxer; - const char *argv[2]; int code; + const char *hook_path = find_hook(hook_name); - argv[0] = find_hook(hook_name); - if (!argv[0]) + if (!hook_path) return 0; - argv[1] = NULL; - - proc.argv = argv; + strvec_push(&proc.args, hook_path); proc.in = -1; proc.stdout_to_stderr = 1; proc.trace2_hook_name = hook_name; @@ -943,23 +942,21 @@ static int run_receive_hook(struct command *commands, static int run_update_hook(struct command *cmd) { - const char *argv[5]; struct child_process proc = CHILD_PROCESS_INIT; int code; + const char *hook_path = find_hook("update"); - argv[0] = find_hook("update"); - if (!argv[0]) + if (!hook_path) return 0; - argv[1] = cmd->ref_name; - argv[2] = oid_to_hex(&cmd->old_oid); - argv[3] = oid_to_hex(&cmd->new_oid); - argv[4] = NULL; + strvec_push(&proc.args, hook_path); + strvec_push(&proc.args, cmd->ref_name); + strvec_push(&proc.args, oid_to_hex(&cmd->old_oid)); + strvec_push(&proc.args, oid_to_hex(&cmd->new_oid)); proc.no_stdin = 1; proc.stdout_to_stderr = 1; proc.err = use_sideband ? -1 : 0; - proc.argv = argv; proc.trace2_hook_name = "update"; code = start_command(&proc); @@ -1117,22 +1114,20 @@ static int run_proc_receive_hook(struct command *commands, struct child_process proc = CHILD_PROCESS_INIT; struct async muxer; struct command *cmd; - const char *argv[2]; struct packet_reader reader; struct strbuf cap = STRBUF_INIT; struct strbuf errmsg = STRBUF_INIT; int hook_use_push_options = 0; int version = 0; int code; + const char *hook_path = find_hook("proc-receive"); - argv[0] = find_hook("proc-receive"); - if (!argv[0]) { + if (!hook_path) { rp_error("cannot find hook 'proc-receive'"); return -1; } - argv[1] = NULL; - proc.argv = argv; + strvec_push(&proc.args, hook_path); proc.in = -1; proc.out = -1; proc.trace2_hook_name = "proc-receive"; @@ -1370,23 +1365,11 @@ static const char *push_to_deploy(unsigned char *sha1, struct strvec *env, const char *work_tree) { - const char *update_refresh[] = { - "update-index", "-q", "--ignore-submodules", "--refresh", NULL - }; - const char *diff_files[] = { - "diff-files", "--quiet", "--ignore-submodules", "--", NULL - }; - const char *diff_index[] = { - "diff-index", "--quiet", "--cached", "--ignore-submodules", - NULL, "--", NULL - }; - const char *read_tree[] = { - "read-tree", "-u", "-m", NULL, NULL - }; struct child_process child = CHILD_PROCESS_INIT; - child.argv = update_refresh; - child.env = env->v; + strvec_pushl(&child.args, "update-index", "-q", "--ignore-submodules", + "--refresh", NULL); + strvec_pushv(&child.env_array, env->v); child.dir = work_tree; child.no_stdin = 1; child.stdout_to_stderr = 1; @@ -1396,8 +1379,9 @@ static const char *push_to_deploy(unsigned char *sha1, /* run_command() does not clean up completely; reinitialize */ child_process_init(&child); - child.argv = diff_files; - child.env = env->v; + strvec_pushl(&child.args, "diff-files", "--quiet", + "--ignore-submodules", "--", NULL); + strvec_pushv(&child.env_array, env->v); child.dir = work_tree; child.no_stdin = 1; child.stdout_to_stderr = 1; @@ -1405,12 +1389,13 @@ static const char *push_to_deploy(unsigned char *sha1, if (run_command(&child)) return "Working directory has unstaged changes"; - /* diff-index with either HEAD or an empty tree */ - diff_index[4] = head_has_history() ? "HEAD" : empty_tree_oid_hex(); - child_process_init(&child); - child.argv = diff_index; - child.env = env->v; + strvec_pushl(&child.args, "diff-index", "--quiet", "--cached", + "--ignore-submodules", + /* diff-index with either HEAD or an empty tree */ + head_has_history() ? "HEAD" : empty_tree_oid_hex(), + "--", NULL); + strvec_pushv(&child.env_array, env->v); child.no_stdin = 1; child.no_stdout = 1; child.stdout_to_stderr = 0; @@ -1418,10 +1403,10 @@ static const char *push_to_deploy(unsigned char *sha1, if (run_command(&child)) return "Working directory has staged changes"; - read_tree[3] = hash_to_hex(sha1); child_process_init(&child); - child.argv = read_tree; - child.env = env->v; + strvec_pushl(&child.args, "read-tree", "-u", "-m", hash_to_hex(sha1), + NULL); + strvec_pushv(&child.env_array, env->v); child.dir = work_tree; child.no_stdin = 1; child.no_stdout = 1; @@ -1449,29 +1434,22 @@ static const char *push_to_checkout(unsigned char *hash, static const char *update_worktree(unsigned char *sha1, const struct worktree *worktree) { - const char *retval, *work_tree, *git_dir = NULL; + const char *retval, *git_dir; struct strvec env = STRVEC_INIT; - if (worktree && worktree->path) - work_tree = worktree->path; - else if (git_work_tree_cfg) - work_tree = git_work_tree_cfg; - else - work_tree = ".."; + if (!worktree || !worktree->path) + BUG("worktree->path must be non-NULL"); - if (is_bare_repository()) + if (worktree->is_bare) return "denyCurrentBranch = updateInstead needs a worktree"; - if (worktree) - git_dir = get_worktree_git_dir(worktree); - if (!git_dir) - git_dir = get_git_dir(); + git_dir = get_worktree_git_dir(worktree); strvec_pushf(&env, "GIT_DIR=%s", absolute_path(git_dir)); if (!hook_exists(push_to_checkout_hook)) - retval = push_to_deploy(sha1, &env, work_tree); + retval = push_to_deploy(sha1, &env, worktree->path); else - retval = push_to_checkout(sha1, &env, work_tree); + retval = push_to_checkout(sha1, &env, worktree->path); strvec_clear(&env); return retval; @@ -1486,19 +1464,22 @@ static const char *update(struct command *cmd, struct shallow_info *si) struct object_id *old_oid = &cmd->old_oid; struct object_id *new_oid = &cmd->new_oid; int do_update_worktree = 0; - const struct worktree *worktree = is_bare_repository() ? NULL : find_shared_symref("HEAD", name); + struct worktree **worktrees = get_worktrees(); + const struct worktree *worktree = + find_shared_symref(worktrees, "HEAD", name); /* only refs/... are allowed */ if (!starts_with(name, "refs/") || check_refname_format(name + 5, 0)) { rp_error("refusing to create funny ref '%s' remotely", name); - return "funny refname"; + ret = "funny refname"; + goto out; } strbuf_addf(&namespaced_name_buf, "%s%s", get_git_namespace(), name); free(namespaced_name); namespaced_name = strbuf_detach(&namespaced_name_buf, NULL); - if (worktree) { + if (worktree && !worktree->is_bare) { switch (deny_current_branch) { case DENY_IGNORE: break; @@ -1510,7 +1491,8 @@ static const char *update(struct command *cmd, struct shallow_info *si) rp_error("refusing to update checked out branch: %s", name); if (deny_current_branch == DENY_UNCONFIGURED) refuse_unconfigured_deny(); - return "branch is currently checked out"; + ret = "branch is currently checked out"; + goto out; case DENY_UPDATE_INSTEAD: /* pass -- let other checks intervene first */ do_update_worktree = 1; @@ -1521,13 +1503,15 @@ static const char *update(struct command *cmd, struct shallow_info *si) if (!is_null_oid(new_oid) && !has_object_file(new_oid)) { error("unpack should have generated %s, " "but I can't find it!", oid_to_hex(new_oid)); - return "bad pack"; + ret = "bad pack"; + goto out; } if (!is_null_oid(old_oid) && is_null_oid(new_oid)) { if (deny_deletes && starts_with(name, "refs/heads/")) { rp_error("denying ref deletion for %s", name); - return "deletion prohibited"; + ret = "deletion prohibited"; + goto out; } if (worktree || (head_name && !strcmp(namespaced_name, head_name))) { @@ -1543,9 +1527,11 @@ static const char *update(struct command *cmd, struct shallow_info *si) if (deny_delete_current == DENY_UNCONFIGURED) refuse_unconfigured_deny_delete_current(); rp_error("refusing to delete the current branch: %s", name); - return "deletion of the current branch prohibited"; + ret = "deletion of the current branch prohibited"; + goto out; default: - return "Invalid denyDeleteCurrent setting"; + ret = "Invalid denyDeleteCurrent setting"; + goto out; } } } @@ -1563,25 +1549,28 @@ static const char *update(struct command *cmd, struct shallow_info *si) old_object->type != OBJ_COMMIT || new_object->type != OBJ_COMMIT) { error("bad sha1 objects for %s", name); - return "bad ref"; + ret = "bad ref"; + goto out; } old_commit = (struct commit *)old_object; new_commit = (struct commit *)new_object; if (!in_merge_bases(old_commit, new_commit)) { rp_error("denying non-fast-forward %s" " (you should pull first)", name); - return "non-fast-forward"; + ret = "non-fast-forward"; + goto out; } } if (run_update_hook(cmd)) { rp_error("hook declined to update %s", name); - return "hook declined"; + ret = "hook declined"; + goto out; } if (do_update_worktree) { - ret = update_worktree(new_oid->hash, find_shared_symref("HEAD", name)); + ret = update_worktree(new_oid->hash, worktree); if (ret) - return ret; + goto out; } if (is_null_oid(new_oid)) { @@ -1589,9 +1578,9 @@ static const char *update(struct command *cmd, struct shallow_info *si) if (!parse_object(the_repository, old_oid)) { old_oid = NULL; if (ref_exists(name)) { - rp_warning("Allowing deletion of corrupt ref."); + rp_warning("allowing deletion of corrupt ref"); } else { - rp_warning("Deleting a non-existent ref."); + rp_warning("deleting a non-existent ref"); cmd->did_not_exist = 1; } } @@ -1600,17 +1589,19 @@ static const char *update(struct command *cmd, struct shallow_info *si) old_oid, 0, "push", &err)) { rp_error("%s", err.buf); - strbuf_release(&err); - return "failed to delete"; + ret = "failed to delete"; + } else { + ret = NULL; /* good */ } strbuf_release(&err); - return NULL; /* good */ } else { struct strbuf err = STRBUF_INIT; if (shallow_update && si->shallow_ref[cmd->index] && - update_shallow_ref(cmd, si)) - return "shallow error"; + update_shallow_ref(cmd, si)) { + ret = "shallow error"; + goto out; + } if (ref_transaction_update(transaction, namespaced_name, @@ -1618,14 +1609,16 @@ static const char *update(struct command *cmd, struct shallow_info *si) 0, "push", &err)) { rp_error("%s", err.buf); - strbuf_release(&err); - - return "failed to update ref"; + ret = "failed to update ref"; + } else { + ret = NULL; /* good */ } strbuf_release(&err); - - return NULL; /* good */ } + +out: + free_worktrees(worktrees); + return ret; } static void run_update_post_hook(struct command *commands) @@ -2219,7 +2212,8 @@ static const char *unpack(int err_fd, struct shallow_info *si) close(err_fd); return "unable to create temporary object directory"; } - child.env = tmp_objdir_env(tmp_objdir); + if (tmp_objdir) + strvec_pushv(&child.env_array, tmp_objdir_env(tmp_objdir)); /* * Normally we just pass the tmp_objdir environment to the child @@ -2490,9 +2484,9 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix) argc = parse_options(argc, argv, prefix, options, receive_pack_usage, 0); if (argc > 1) - usage_msg_opt(_("Too many arguments."), receive_pack_usage, options); + usage_msg_opt(_("too many arguments"), receive_pack_usage, options); if (argc == 0) - usage_msg_opt(_("You must specify a directory."), receive_pack_usage, options); + usage_msg_opt(_("you must specify a directory"), receive_pack_usage, options); service_dir = argv[0]; @@ -2566,25 +2560,25 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix) &push_options); if (pack_lockfile) unlink_or_warn(pack_lockfile); + sigchain_push(SIGPIPE, SIG_IGN); if (report_status_v2) report_v2(commands, unpack_status); else if (report_status) report(commands, unpack_status); + sigchain_pop(SIGPIPE); run_receive_hook(commands, "post-receive", 1, &push_options); run_update_post_hook(commands); string_list_clear(&push_options, 0); if (auto_gc) { - const char *argv_gc_auto[] = { - "gc", "--auto", "--quiet", NULL, - }; struct child_process proc = CHILD_PROCESS_INIT; proc.no_stdin = 1; proc.stdout_to_stderr = 1; proc.err = use_sideband ? -1 : 0; proc.git_cmd = proc.close_object_store = 1; - proc.argv = argv_gc_auto; + strvec_pushl(&proc.args, "gc", "--auto", "--quiet", + NULL); if (!start_command(&proc)) { if (use_sideband) diff --git a/builtin/replace.c b/builtin/replace.c index 946938d011..6ff1734d58 100644 --- a/builtin/replace.c +++ b/builtin/replace.c @@ -258,11 +258,10 @@ static int import_object(struct object_id *oid, enum object_type type, return error_errno(_("unable to open %s for reading"), filename); if (!raw && type == OBJ_TREE) { - const char *argv[] = { "mktree", NULL }; struct child_process cmd = CHILD_PROCESS_INIT; struct strbuf result = STRBUF_INIT; - cmd.argv = argv; + strvec_push(&cmd.args, "mktree"); cmd.git_cmd = 1; cmd.in = fd; cmd.out = -1; diff --git a/builtin/show-branch.c b/builtin/show-branch.c index 082449293b..f1e8318592 100644 --- a/builtin/show-branch.c +++ b/builtin/show-branch.c @@ -761,6 +761,7 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) char *logmsg; char *nth_desc; const char *msg; + char *end; timestamp_t timestamp; int tz; @@ -770,11 +771,12 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) reflog = i; break; } - msg = strchr(logmsg, '\t'); - if (!msg) - msg = "(none)"; - else - msg++; + + end = strchr(logmsg, '\n'); + if (end) + *end = '\0'; + + msg = (*logmsg == '\0') ? "(none)" : logmsg; reflog_msg[i] = xstrfmt("(%s) %s", show_date(timestamp, tz, DATE_MODE(RELATIVE)), diff --git a/builtin/upload-archive.c b/builtin/upload-archive.c index 24654b4c9b..98d028dae6 100644 --- a/builtin/upload-archive.c +++ b/builtin/upload-archive.c @@ -77,7 +77,7 @@ static ssize_t process_input(int child_fd, int band) int cmd_upload_archive(int argc, const char **argv, const char *prefix) { - struct child_process writer = { argv }; + struct child_process writer = CHILD_PROCESS_INIT; if (argc == 2 && !strcmp(argv[1], "-h")) usage(upload_archive_usage); @@ -89,9 +89,10 @@ int cmd_upload_archive(int argc, const char **argv, const char *prefix) * multiplexed out to our fd#1. If the child dies, we tell the other * end over channel #3. */ - argv[0] = "upload-archive--writer"; writer.out = writer.err = -1; writer.git_cmd = 1; + strvec_push(&writer.args, "upload-archive--writer"); + strvec_pushv(&writer.args, argv + 1); if (start_command(&writer)) { int err = errno; packet_write_fmt(1, "NACK unable to spawn subprocess\n"); diff --git a/builtin/worktree.c b/builtin/worktree.c index d22ece93e1..a396cfdc64 100644 --- a/builtin/worktree.c +++ b/builtin/worktree.c @@ -72,7 +72,7 @@ static void delete_worktrees_dir_if_empty(void) static void prune_worktree(const char *id, const char *reason) { if (show_only || verbose) - printf_ln(_("Removing %s/%s: %s"), "worktrees", id, reason); + fprintf_ln(stderr, _("Removing %s/%s: %s"), "worktrees", id, reason); if (!show_only) delete_git_dir(id); } @@ -349,18 +349,18 @@ static int add_worktree(const char *path, const char *refname, strvec_push(&cp.args, "--quiet"); } - cp.env = child_env.v; + strvec_pushv(&cp.env_array, child_env.v); ret = run_command(&cp); if (ret) goto done; if (opts->checkout) { - cp.argv = NULL; - strvec_clear(&cp.args); + struct child_process cp = CHILD_PROCESS_INIT; + cp.git_cmd = 1; strvec_pushl(&cp.args, "reset", "--hard", "--no-recurse-submodules", NULL); if (opts->quiet) strvec_push(&cp.args, "--quiet"); - cp.env = child_env.v; + strvec_pushv(&cp.env_array, child_env.v); ret = run_command(&cp); if (ret) goto done; @@ -385,12 +385,11 @@ done: const char *hook = find_hook("post-checkout"); if (hook) { const char *env[] = { "GIT_DIR", "GIT_WORK_TREE", NULL }; - cp.git_cmd = 0; + struct child_process cp = CHILD_PROCESS_INIT; cp.no_stdin = 1; cp.stdout_to_stderr = 1; cp.dir = path; - cp.env = env; - cp.argv = NULL; + strvec_pushv(&cp.env_array, env); cp.trace2_hook_name = "post-checkout"; strvec_pushl(&cp.args, absolute_path(hook), oid_to_hex(null_oid()), @@ -418,24 +417,24 @@ static void print_preparing_worktree_line(int detach, if (force_new_branch) { struct commit *commit = lookup_commit_reference_by_name(new_branch); if (!commit) - printf_ln(_("Preparing worktree (new branch '%s')"), new_branch); + fprintf_ln(stderr, _("Preparing worktree (new branch '%s')"), new_branch); else - printf_ln(_("Preparing worktree (resetting branch '%s'; was at %s)"), + fprintf_ln(stderr, _("Preparing worktree (resetting branch '%s'; was at %s)"), new_branch, find_unique_abbrev(&commit->object.oid, DEFAULT_ABBREV)); } else if (new_branch) { - printf_ln(_("Preparing worktree (new branch '%s')"), new_branch); + fprintf_ln(stderr, _("Preparing worktree (new branch '%s')"), new_branch); } else { struct strbuf s = STRBUF_INIT; if (!detach && !strbuf_check_branch_ref(&s, branch) && ref_exists(s.buf)) - printf_ln(_("Preparing worktree (checking out '%s')"), + fprintf_ln(stderr, _("Preparing worktree (checking out '%s')"), branch); else { struct commit *commit = lookup_commit_reference_by_name(branch); if (!commit) die(_("invalid reference: %s"), branch); - printf_ln(_("Preparing worktree (detached HEAD %s)"), + fprintf_ln(stderr, _("Preparing worktree (detached HEAD %s)"), find_unique_abbrev(&commit->object.oid, DEFAULT_ABBREV)); } strbuf_release(&s); @@ -1006,7 +1005,7 @@ static int remove_worktree(int ac, const char **av, const char *prefix) static void report_repair(int iserr, const char *path, const char *msg, void *cb_data) { if (!iserr) { - printf_ln(_("repair: %s: %s"), msg, path); + fprintf_ln(stderr, _("repair: %s: %s"), msg, path); } else { int *exit_status = (int *)cb_data; fprintf_ln(stderr, _("error: %s: %s"), msg, path); @@ -996,6 +996,7 @@ extern int read_replace_refs; extern char *git_replace_ref_base; extern int fsync_object_files; +extern int use_fsync; extern int core_preload_index; extern int precomposed_unicode; extern int protect_hfs; @@ -95,38 +95,6 @@ struct cb_node *cb_lookup(struct cb_tree *t, const uint8_t *k, size_t klen) return p && !memcmp(p->k, k, klen) ? p : NULL; } -struct cb_node *cb_unlink(struct cb_tree *t, const uint8_t *k, size_t klen) -{ - struct cb_node **wherep = &t->root; - struct cb_node **whereq = NULL; - struct cb_node *q = NULL; - size_t direction = 0; - uint8_t c; - struct cb_node *p = t->root; - - if (!p) return NULL; /* empty tree, nothing to delete */ - - /* traverse to find best match, keeping link to parent */ - while (1 & (uintptr_t)p) { - whereq = wherep; - q = cb_node_of(p); - c = q->byte < klen ? k[q->byte] : 0; - direction = (1 + (q->otherbits | c)) >> 8; - wherep = q->child + direction; - p = *wherep; - } - - if (memcmp(p->k, k, klen)) - return NULL; /* no match, nothing unlinked */ - - /* found an exact match */ - if (whereq) /* update parent */ - *whereq = q->child[1 - direction]; - else - t->root = NULL; - return p; -} - static enum cb_next cb_descend(struct cb_node *p, cb_iter fn, void *arg) { if (1 & (uintptr_t)p) { @@ -47,7 +47,6 @@ static inline void cb_init(struct cb_tree *t) struct cb_node *cb_lookup(struct cb_tree *, const uint8_t *k, size_t klen); struct cb_node *cb_insert(struct cb_tree *, struct cb_node *, size_t klen); -struct cb_node *cb_unlink(struct cb_tree *t, const uint8_t *k, size_t klen); typedef enum cb_next (*cb_iter)(struct cb_node *, void *arg); diff --git a/ci/install-dependencies.sh b/ci/install-dependencies.sh index 1d0e48f451..dbcebad2fb 100755 --- a/ci/install-dependencies.sh +++ b/ci/install-dependencies.sh @@ -11,18 +11,11 @@ UBUNTU_COMMON_PKGS="make libssl-dev libcurl4-openssl-dev libexpat-dev tcl tk gettext zlib1g-dev perl-modules liberror-perl libauthen-sasl-perl libemail-valid-perl libio-socket-ssl-perl libnet-smtp-ssl-perl" -case "$jobname" in -linux-clang|linux-gcc|linux-leaks) - sudo apt-add-repository -y "ppa:ubuntu-toolchain-r/test" +case "$runs_on_pool" in +ubuntu-latest) sudo apt-get -q update sudo apt-get -q -y install language-pack-is libsvn-perl apache2 \ - $UBUNTU_COMMON_PKGS - case "$jobname" in - linux-gcc) - sudo apt-get -q -y install gcc-8 - ;; - esac - + $UBUNTU_COMMON_PKGS $CC_PACKAGE mkdir --parents "$P4_PATH" pushd "$P4_PATH" wget --quiet "$P4WHENCE/bin.linux26x86_64/p4d" @@ -37,7 +30,7 @@ linux-clang|linux-gcc|linux-leaks) cp git-lfs-$LINUX_GIT_LFS_VERSION/git-lfs . popd ;; -osx-clang|osx-gcc) +macos-latest) export HOMEBREW_NO_AUTO_UPDATE=1 HOMEBREW_NO_INSTALL_CLEANUP=1 # Uncomment this if you want to run perf tests: # brew install gnu-time @@ -51,15 +44,17 @@ osx-clang|osx-gcc) brew install --cask --no-quarantine perforce } || brew install homebrew/cask/perforce - case "$jobname" in - osx-gcc) - brew install gcc@9 - # Just in case the image is updated to contain gcc@9 - # pre-installed but not linked. - brew link gcc@9 - ;; - esac + + if test -n "$CC_PACKAGE" + then + BREW_PACKAGE=${CC_PACKAGE/-/@} + brew install "$BREW_PACKAGE" + brew link "$BREW_PACKAGE" + fi ;; +esac + +case "$jobname" in StaticAnalysis) sudo apt-get -q update sudo apt-get -q -y install coccinelle libcurl4-openssl-dev libssl-dev \ @@ -77,7 +72,7 @@ Documentation) test -n "$ALREADY_HAVE_ASCIIDOCTOR" || sudo gem install --version 1.5.8 asciidoctor ;; -linux-gcc-default|linux-gcc-4.8) +linux-gcc-default) sudo apt-get -q update sudo apt-get -q -y install $UBUNTU_COMMON_PKGS ;; diff --git a/ci/install-docker-dependencies.sh b/ci/install-docker-dependencies.sh index 07a8c6b199..78b7e326da 100755 --- a/ci/install-docker-dependencies.sh +++ b/ci/install-docker-dependencies.sh @@ -4,7 +4,7 @@ # case "$jobname" in -Linux32) +linux32) linux32 --32bit i386 sh -c ' apt update >/dev/null && apt install -y build-essential libcurl4-openssl-dev \ @@ -34,7 +34,7 @@ save_good_tree () { # successfully before (e.g. because the branch got rebased, changing only # the commit messages). skip_good_tree () { - if test "$TRAVIS_DEBUG_MODE" = true || test true = "$GITHUB_ACTIONS" + if test true = "$GITHUB_ACTIONS" then return fi @@ -60,7 +60,7 @@ skip_good_tree () { cat <<-EOF $(tput setaf 2)Skipping build job for commit $CI_COMMIT.$(tput sgr0) This commit's tree has already been built and tested successfully in build job $prev_good_job_number for commit $prev_good_commit. - The log of that build job is available at $(url_for_job_id $prev_good_job_id) + The log of that build job is available at $SYSTEM_TASKDEFINITIONSURI$SYSTEM_TEAMPROJECT/_build/results?buildId=$prev_good_job_id To force a re-build delete the branch's cache and then hit 'Restart job'. EOF fi @@ -91,29 +91,7 @@ export MAKEFLAGS= # and installing dependencies. set -ex -if test true = "$TRAVIS" -then - CI_TYPE=travis - # When building a PR, TRAVIS_BRANCH refers to the *target* branch. Not - # what we want here. We want the source branch instead. - CI_BRANCH="${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH}" - CI_COMMIT="$TRAVIS_COMMIT" - CI_JOB_ID="$TRAVIS_JOB_ID" - CI_JOB_NUMBER="$TRAVIS_JOB_NUMBER" - CI_OS_NAME="$TRAVIS_OS_NAME" - CI_REPO_SLUG="$TRAVIS_REPO_SLUG" - - cache_dir="$HOME/travis-cache" - - url_for_job_id () { - echo "https://travis-ci.org/$CI_REPO_SLUG/jobs/$1" - } - - BREW_INSTALL_PACKAGES="git-lfs gettext" - export GIT_PROVE_OPTS="--timer --jobs 3 --state=failed,slow,save" - export GIT_TEST_OPTS="--verbose-log -x --immediate" - MAKEFLAGS="$MAKEFLAGS --jobs=2" -elif test -n "$SYSTEM_COLLECTIONURI" || test -n "$SYSTEM_TASKDEFINITIONSURI" +if test -n "$SYSTEM_COLLECTIONURI" || test -n "$SYSTEM_TASKDEFINITIONSURI" then CI_TYPE=azure-pipelines # We are running in Azure Pipelines @@ -130,10 +108,6 @@ then # among *all* phases) cache_dir="$HOME/test-cache/$SYSTEM_PHASENAME" - url_for_job_id () { - echo "$SYSTEM_TASKDEFINITIONSURI$SYSTEM_TEAMPROJECT/_build/results?buildId=$1" - } - export GIT_PROVE_OPTS="--timer --jobs 10 --state=failed,slow,save" export GIT_TEST_OPTS="--verbose-log -x --write-junit-xml" MAKEFLAGS="$MAKEFLAGS --jobs=10" @@ -182,11 +156,15 @@ export DEFAULT_TEST_TARGET=prove export GIT_TEST_CLONE_2GB=true export SKIP_DASHED_BUILT_INS=YesPlease -case "$jobname" in -linux-clang|linux-gcc|linux-leaks) +case "$runs_on_pool" in +ubuntu-latest) + if test "$jobname" = "linux-gcc-default" + then + break + fi + if [ "$jobname" = linux-gcc ] then - export CC=gcc-8 MAKEFLAGS="$MAKEFLAGS PYTHON_PATH=/usr/bin/python3" else MAKEFLAGS="$MAKEFLAGS PYTHON_PATH=/usr/bin/python2" @@ -206,24 +184,20 @@ linux-clang|linux-gcc|linux-leaks) GIT_LFS_PATH="$HOME/custom/git-lfs" export PATH="$GIT_LFS_PATH:$P4_PATH:$PATH" ;; -osx-clang|osx-gcc) +macos-latest) if [ "$jobname" = osx-gcc ] then - export CC=gcc-9 MAKEFLAGS="$MAKEFLAGS PYTHON_PATH=$(which python3)" else MAKEFLAGS="$MAKEFLAGS PYTHON_PATH=$(which python2)" fi - - # t9810 occasionally fails on Travis CI OS X - # t9816 occasionally fails with "TAP out of sequence errors" on - # Travis CI OS X - export GIT_SKIP_TESTS="t9810 t9816" - ;; -linux-gcc-default) ;; -Linux32) +esac + +case "$jobname" in +linux32) CC=gcc + MAKEFLAGS="$MAKEFLAGS NO_UNCOMPRESS2=1" ;; linux-musl) CC=gcc @@ -231,9 +205,6 @@ linux-musl) MAKEFLAGS="$MAKEFLAGS NO_REGEX=Yes ICONV_OMITS_BOM=Yes" MAKEFLAGS="$MAKEFLAGS GIT_TEST_UTF8_LOCALE=C.UTF-8" ;; -esac - -case "$jobname" in linux-leaks) export SANITIZE=leak export GIT_TEST_PASSING_SANITIZE_LEAK=true diff --git a/ci/print-test-failures.sh b/ci/print-test-failures.sh index c70d6cdbf2..57277eefcd 100755 --- a/ci/print-test-failures.sh +++ b/ci/print-test-failures.sh @@ -39,8 +39,6 @@ do test_name="${test_name##*/}" trash_dir="trash directory.$test_name" case "$CI_TYPE" in - travis) - ;; azure-pipelines) mkdir -p failed-test-artifacts mv "$trash_dir" failed-test-artifacts @@ -88,11 +86,3 @@ do fi fi done - -if [ $combined_trash_size -gt 0 ] -then - echo "------------------------------------------------------------------------" - echo "Trash directories embedded in this log can be extracted by running:" - echo - echo " curl https://api.travis-ci.org/v3/job/$TRAVIS_JOB_ID/log.txt |./ci/util/extract-trash-dirs.sh" -fi diff --git a/ci/run-build-and-tests.sh b/ci/run-build-and-tests.sh index cc62616d80..280dda7d28 100755 --- a/ci/run-build-and-tests.sh +++ b/ci/run-build-and-tests.sh @@ -10,16 +10,13 @@ windows*) cmd //c mklink //j t\\.prove "$(cygpath -aw "$cache_dir/.prove")";; *) ln -s "$cache_dir/.prove" t/.prove;; esac -if test "$jobname" = "pedantic" -then - export DEVOPTS=pedantic -fi +export MAKE_TARGETS="all test" -make case "$jobname" in linux-gcc) export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main - make test + ;; +linux-TEST-vars) export GIT_TEST_SPLIT_INDEX=yes export GIT_TEST_MERGE_ALGORITHM=recursive export GIT_TEST_FULL_IN_PACK_ARRAY=true @@ -33,23 +30,25 @@ linux-gcc) export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master export GIT_TEST_WRITE_REV_INDEX=1 export GIT_TEST_CHECKOUT_WORKERS=2 - make test ;; linux-clang) export GIT_TEST_DEFAULT_HASH=sha1 - make test + ;; +linux-sha256) export GIT_TEST_DEFAULT_HASH=sha256 - make test ;; -linux-gcc-4.8|pedantic) +pedantic) # Don't run the tests; we only care about whether Git can be - # built with GCC 4.8 or with pedantic - ;; -*) - make test + # built. + export DEVOPTS=pedantic + export MAKE_TARGETS=all ;; esac +# Any new "test" targets should not go after this "make", but should +# adjust $MAKE_TARGETS. Otherwise compilation-only targets above will +# start running tests. +make $MAKE_TARGETS check_unignored_build_artifacts save_good_tree diff --git a/ci/run-docker-build.sh b/ci/run-docker-build.sh index 8d47a5fda3..6cd832efb9 100755 --- a/ci/run-docker-build.sh +++ b/ci/run-docker-build.sh @@ -15,7 +15,7 @@ then fi case "$jobname" in -Linux32) +linux32) switch_cmd="linux32 --32bit i386" ;; linux-musl) @@ -47,15 +47,6 @@ else else useradd -u $HOST_UID $CI_USER fi - - # Due to a bug the test suite was run as root in the past, so - # a prove state file created back then is only accessible by - # root. Now that bug is fixed, the test suite is run as a - # regular user, but the prove state file coming from Travis - # CI's cache might still be owned by root. - # Make sure that this user has rights to any cached files, - # including an existing prove state file. - test -n "$cache_dir" && chown -R $HOST_UID:$HOST_UID "$cache_dir" fi # Build and test diff --git a/ci/run-docker.sh b/ci/run-docker.sh index 37fa372052..af89d1624a 100755 --- a/ci/run-docker.sh +++ b/ci/run-docker.sh @@ -6,7 +6,7 @@ . ${0%/*}/lib.sh case "$jobname" in -Linux32) +linux32) CI_CONTAINER="daald/ubuntu32:xenial" ;; linux-musl) @@ -25,7 +25,7 @@ docker pull "$CI_CONTAINER" # root@container:/# export jobname=<jobname> # root@container:/# /usr/src/git/ci/run-docker-build.sh <host-user-id> -container_cache_dir=/tmp/travis-cache +container_cache_dir=/tmp/container-cache docker run \ --interactive \ @@ -40,7 +40,7 @@ struct color { enum { COLOR_UNSPECIFIED = 0, COLOR_NORMAL, - COLOR_ANSI, /* basic 0-7 ANSI colors */ + COLOR_ANSI, /* basic 0-7 ANSI colors + "default" (value = 9) */ COLOR_256, COLOR_RGB } type; @@ -83,6 +83,27 @@ static int parse_ansi_color(struct color *out, const char *name, int len) int i; int color_offset = COLOR_FOREGROUND_ANSI; + if (match_word(name, len, "default")) { + /* + * Restores to the terminal's default color, which may not be + * the same as explicitly setting "white" or "black". + * + * ECMA-48 - Control Functions \ + * for Coded Character Sets, 5th edition (June 1991): + * > 39 default display colour (implementation-defined) + * > 49 default background colour (implementation-defined) + * + * Although not supported /everywhere/--according to terminfo, + * some terminals define "op" (original pair) as a blunt + * "set to white on black", or even "send full SGR reset"-- + * it's standard and well-supported enough that if a user + * asks for it in their config this will do the right thing. + */ + out->type = COLOR_ANSI; + out->value = 9 + color_offset; + return 0; + } + if (strncasecmp(name, "bright", 6) == 0) { color_offset = COLOR_FOREGROUND_BRIGHT_ANSI; name += 6; @@ -234,6 +255,7 @@ int color_parse_mem(const char *value, int value_len, char *dst) const char *ptr = value; int len = value_len; char *end = dst + COLOR_MAXLEN; + unsigned int has_reset = 0; unsigned int attr = 0; struct color fg = { COLOR_UNSPECIFIED }; struct color bg = { COLOR_UNSPECIFIED }; @@ -248,12 +270,7 @@ int color_parse_mem(const char *value, int value_len, char *dst) return 0; } - if (!strncasecmp(ptr, "reset", len)) { - xsnprintf(dst, end - dst, GIT_COLOR_RESET); - return 0; - } - - /* [fg [bg]] [attr]... */ + /* [reset] [fg [bg]] [attr]... */ while (len > 0) { const char *word = ptr; struct color c = { COLOR_UNSPECIFIED }; @@ -270,6 +287,11 @@ int color_parse_mem(const char *value, int value_len, char *dst) len--; } + if (match_word(word, wordlen, "reset")) { + has_reset = 1; + continue; + } + if (!parse_color(&c, word, wordlen)) { if (fg.type == COLOR_UNSPECIFIED) { fg = c; @@ -295,13 +317,16 @@ int color_parse_mem(const char *value, int value_len, char *dst) *dst++ = (x); \ } while(0) - if (attr || !color_empty(&fg) || !color_empty(&bg)) { + if (has_reset || attr || !color_empty(&fg) || !color_empty(&bg)) { int sep = 0; int i; OUT('\033'); OUT('['); + if (has_reset) + sep++; + for (i = 0; attr; i++) { unsigned bit = (1 << i); if (!(attr & bit)) @@ -6,6 +6,7 @@ struct strbuf; /* * The maximum length of ANSI color sequence we would generate: * - leading ESC '[' 2 + * - reset ';' .................1 * - attr + ';' 2 * num_attr (e.g. "1;") * - no-attr + ';' 3 * num_attr (e.g. "22;") * - fg color + ';' 17 (e.g. "38;2;255;255;255;") @@ -24,30 +25,42 @@ struct strbuf; #define GIT_COLOR_NORMAL "" #define GIT_COLOR_RESET "\033[m" #define GIT_COLOR_BOLD "\033[1m" +#define GIT_COLOR_BLACK "\033[30m" #define GIT_COLOR_RED "\033[31m" #define GIT_COLOR_GREEN "\033[32m" #define GIT_COLOR_YELLOW "\033[33m" #define GIT_COLOR_BLUE "\033[34m" #define GIT_COLOR_MAGENTA "\033[35m" #define GIT_COLOR_CYAN "\033[36m" +#define GIT_COLOR_WHITE "\033[37m" +#define GIT_COLOR_DEFAULT "\033[39m" +#define GIT_COLOR_BOLD_BLACK "\033[1;30m" #define GIT_COLOR_BOLD_RED "\033[1;31m" #define GIT_COLOR_BOLD_GREEN "\033[1;32m" #define GIT_COLOR_BOLD_YELLOW "\033[1;33m" #define GIT_COLOR_BOLD_BLUE "\033[1;34m" #define GIT_COLOR_BOLD_MAGENTA "\033[1;35m" #define GIT_COLOR_BOLD_CYAN "\033[1;36m" +#define GIT_COLOR_BOLD_WHITE "\033[1;37m" +#define GIT_COLOR_BOLD_DEFAULT "\033[1;39m" +#define GIT_COLOR_FAINT_BLACK "\033[2;30m" #define GIT_COLOR_FAINT_RED "\033[2;31m" #define GIT_COLOR_FAINT_GREEN "\033[2;32m" #define GIT_COLOR_FAINT_YELLOW "\033[2;33m" #define GIT_COLOR_FAINT_BLUE "\033[2;34m" #define GIT_COLOR_FAINT_MAGENTA "\033[2;35m" #define GIT_COLOR_FAINT_CYAN "\033[2;36m" +#define GIT_COLOR_FAINT_WHITE "\033[2;37m" +#define GIT_COLOR_FAINT_DEFAULT "\033[2;39m" +#define GIT_COLOR_BG_BLACK "\033[40m" #define GIT_COLOR_BG_RED "\033[41m" #define GIT_COLOR_BG_GREEN "\033[42m" #define GIT_COLOR_BG_YELLOW "\033[43m" #define GIT_COLOR_BG_BLUE "\033[44m" #define GIT_COLOR_BG_MAGENTA "\033[45m" #define GIT_COLOR_BG_CYAN "\033[46m" +#define GIT_COLOR_BG_WHITE "\033[47m" +#define GIT_COLOR_BG_DEFAULT "\033[49m" #define GIT_COLOR_FAINT "\033[2m" #define GIT_COLOR_FAINT_ITALIC "\033[2;3m" #define GIT_COLOR_REVERSE "\033[7m" diff --git a/commit-graph.c b/commit-graph.c index 2706683acf..265c010122 100644 --- a/commit-graph.c +++ b/commit-graph.c @@ -632,10 +632,13 @@ static int prepare_commit_graph(struct repository *r) struct object_directory *odb; /* + * Early return if there is no git dir or if the commit graph is + * disabled. + * * This must come before the "already attempted?" check below, because * we want to disable even an already-loaded graph file. */ - if (r->commit_graph_disabled) + if (!r->gitdir || r->commit_graph_disabled) return 0; if (r->objects->commit_graph_attempted) @@ -1212,8 +1212,10 @@ int check_commit_signature(const struct commit *commit, struct signature_check * if (parse_signed_commit(commit, &payload, &signature, the_hash_algo) <= 0) goto out; - ret = check_signature(payload.buf, payload.len, signature.buf, - signature.len, sigc); + + sigc->payload_type = SIGNATURE_PAYLOAD_COMMIT; + sigc->payload = strbuf_detach(&payload, &sigc->payload_len); + ret = check_signature(sigc, signature.buf, signature.len); out: strbuf_release(&payload); diff --git a/common-main.c b/common-main.c index 71e21dd20a..eafc70718a 100644 --- a/common-main.c +++ b/common-main.c @@ -51,7 +51,10 @@ int main(int argc, const char **argv) result = cmd_main(argc, argv); - trace2_cmd_exit(result); - - return result; + /* + * We define exit() to call trace2_cmd_exit_fl() in + * git-compat-util.h. Whether we reach this or exit() + * elsewhere we'll always run our trace2 exit handler. + */ + exit(result); } diff --git a/compat/.gitattributes b/compat/.gitattributes new file mode 100644 index 0000000000..40dbfb170d --- /dev/null +++ b/compat/.gitattributes @@ -0,0 +1 @@ +/zlib-uncompress2.c whitespace=-indent-with-non-tab,-trailing-space diff --git a/compat/zlib-uncompress2.c b/compat/zlib-uncompress2.c new file mode 100644 index 0000000000..722610b971 --- /dev/null +++ b/compat/zlib-uncompress2.c @@ -0,0 +1,95 @@ +/* taken from zlib's uncompr.c + + commit cacf7f1d4e3d44d871b605da3b647f07d718623f + Author: Mark Adler <madler@alumni.caltech.edu> + Date: Sun Jan 15 09:18:46 2017 -0800 + + zlib 1.2.11 + +*/ + +#include "../reftable/system.h" +#define z_const + +/* + * Copyright (C) 1995-2003, 2010, 2014, 2016 Jean-loup Gailly, Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include <zlib.h> + +/* clang-format off */ + +/* =========================================================================== + Decompresses the source buffer into the destination buffer. *sourceLen is + the byte length of the source buffer. Upon entry, *destLen is the total size + of the destination buffer, which must be large enough to hold the entire + uncompressed data. (The size of the uncompressed data must have been saved + previously by the compressor and transmitted to the decompressor by some + mechanism outside the scope of this compression library.) Upon exit, + *destLen is the size of the decompressed data and *sourceLen is the number + of source bytes consumed. Upon return, source + *sourceLen points to the + first unused input byte. + + uncompress returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_BUF_ERROR if there was not enough room in the output buffer, or + Z_DATA_ERROR if the input data was corrupted, including if the input data is + an incomplete zlib stream. +*/ +int ZEXPORT uncompress2 ( + Bytef *dest, + uLongf *destLen, + const Bytef *source, + uLong *sourceLen) { + z_stream stream; + int err; + const uInt max = (uInt)-1; + uLong len, left; + Byte buf[1]; /* for detection of incomplete stream when *destLen == 0 */ + + len = *sourceLen; + if (*destLen) { + left = *destLen; + *destLen = 0; + } + else { + left = 1; + dest = buf; + } + + stream.next_in = (z_const Bytef *)source; + stream.avail_in = 0; + stream.zalloc = (alloc_func)0; + stream.zfree = (free_func)0; + stream.opaque = (voidpf)0; + + err = inflateInit(&stream); + if (err != Z_OK) return err; + + stream.next_out = dest; + stream.avail_out = 0; + + do { + if (stream.avail_out == 0) { + stream.avail_out = left > (uLong)max ? max : (uInt)left; + left -= stream.avail_out; + } + if (stream.avail_in == 0) { + stream.avail_in = len > (uLong)max ? max : (uInt)len; + len -= stream.avail_in; + } + err = inflate(&stream, Z_NO_FLUSH); + } while (err == Z_OK); + + *sourceLen -= len + stream.avail_in; + if (dest != buf) + *destLen = stream.total_out; + else if (stream.total_out && err == Z_BUF_ERROR) + left = 1; + + inflateEnd(&stream); + return err == Z_STREAM_END ? Z_OK : + err == Z_NEED_DICT ? Z_DATA_ERROR : + err == Z_BUF_ERROR && left + stream.avail_out ? Z_DATA_ERROR : + err; +} diff --git a/config.mak.dev b/config.mak.dev index 7673fed114..d4afac6b51 100644 --- a/config.mak.dev +++ b/config.mak.dev @@ -19,6 +19,11 @@ endif endif endif endif + +ifneq ($(or $(filter gcc6,$(COMPILER_FEATURES)),$(filter clang7,$(COMPILER_FEATURES))),) +DEVELOPER_CFLAGS += -std=gnu99 +endif + DEVELOPER_CFLAGS += -Wdeclaration-after-statement DEVELOPER_CFLAGS += -Wformat-security DEVELOPER_CFLAGS += -Wold-style-definition diff --git a/config.mak.uname b/config.mak.uname index d0701f9beb..a3a779327f 100644 --- a/config.mak.uname +++ b/config.mak.uname @@ -261,6 +261,10 @@ ifeq ($(uname_S),FreeBSD) FILENO_IS_A_MACRO = UnfortunatelyYes endif ifeq ($(uname_S),OpenBSD) + # Versions < 7.0 need compatibility layer + ifeq ($(shell expr "$(uname_R)" : "[1-6]\."),2) + NO_UNCOMPRESS2 = UnfortunatelyYes + endif NO_STRCASESTR = YesPlease NO_MEMMEM = YesPlease USE_ST_TIMESPEC = YesPlease @@ -516,6 +520,7 @@ ifeq ($(uname_S),Interix) endif endif ifeq ($(uname_S),Minix) + NO_UNCOMPRESS2 = YesPlease NO_IPV6 = YesPlease NO_ST_BLOCKS_IN_STRUCT_STAT = YesPlease NO_NSEC = YesPlease diff --git a/configure.ac b/configure.ac index 5ee25ec95c..d60d494ee4 100644 --- a/configure.ac +++ b/configure.ac @@ -664,9 +664,22 @@ AC_LINK_IFELSE([ZLIBTEST_SRC], NO_DEFLATE_BOUND=yes]) LIBS="$old_LIBS" +AC_DEFUN([ZLIBTEST_UNCOMPRESS2_SRC], [ +AC_LANG_PROGRAM([#include <zlib.h>], + [uncompress2(NULL,NULL,NULL,NULL);])]) +AC_MSG_CHECKING([for uncompress2 in -lz]) +old_LIBS="$LIBS" +LIBS="$LIBS -lz" +AC_LINK_IFELSE([ZLIBTEST_UNCOMPRESS2_SRC], + [AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no]) + NO_UNCOMPRESS2=yes]) +LIBS="$old_LIBS" + GIT_UNSTASH_FLAGS($ZLIB_PATH) GIT_CONF_SUBST([NO_DEFLATE_BOUND]) +GIT_CONF_SUBST([NO_UNCOMPRESS2]) # # Define NEEDS_SOCKET if linking with libc is not enough (SunOS, diff --git a/connected.c b/connected.c index 35bd4a2638..ed3025e7a2 100644 --- a/connected.c +++ b/connected.c @@ -109,7 +109,8 @@ no_promisor_pack_found: _("Checking connectivity")); rev_list.git_cmd = 1; - rev_list.env = opt->env; + if (opt->env) + strvec_pushv(&rev_list.env_array, opt->env); rev_list.in = -1; rev_list.no_stdout = 1; if (opt->err_fd) diff --git a/contrib/buildsystems/CMakeLists.txt b/contrib/buildsystems/CMakeLists.txt index be67b4dab0..5100f56bb3 100644 --- a/contrib/buildsystems/CMakeLists.txt +++ b/contrib/buildsystems/CMakeLists.txt @@ -647,6 +647,12 @@ parse_makefile_for_sources(libxdiff_SOURCES "XDIFF_OBJS") list(TRANSFORM libxdiff_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/") add_library(xdiff STATIC ${libxdiff_SOURCES}) +#reftable +parse_makefile_for_sources(reftable_SOURCES "REFTABLE_OBJS") + +list(TRANSFORM reftable_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/") +add_library(reftable STATIC ${reftable_SOURCES}) + if(WIN32) if(NOT MSVC)#use windres when compiling with gcc and clang add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/git.res @@ -669,7 +675,7 @@ endif() #link all required libraries to common-main add_library(common-main OBJECT ${CMAKE_SOURCE_DIR}/common-main.c) -target_link_libraries(common-main libgit xdiff ${ZLIB_LIBRARIES}) +target_link_libraries(common-main libgit xdiff reftable ${ZLIB_LIBRARIES}) if(Intl_FOUND) target_link_libraries(common-main ${Intl_LIBRARIES}) endif() @@ -908,11 +914,15 @@ if(BUILD_TESTING) add_executable(test-fake-ssh ${CMAKE_SOURCE_DIR}/t/helper/test-fake-ssh.c) target_link_libraries(test-fake-ssh common-main) +#reftable-tests +parse_makefile_for_sources(test-reftable_SOURCES "REFTABLE_TEST_OBJS") +list(TRANSFORM test-reftable_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/") + #test-tool parse_makefile_for_sources(test-tool_SOURCES "TEST_BUILTINS_OBJS") list(TRANSFORM test-tool_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/t/helper/") -add_executable(test-tool ${CMAKE_SOURCE_DIR}/t/helper/test-tool.c ${test-tool_SOURCES}) +add_executable(test-tool ${CMAKE_SOURCE_DIR}/t/helper/test-tool.c ${test-tool_SOURCES} ${test-reftable_SOURCES}) target_link_libraries(test-tool common-main) set_target_properties(test-fake-ssh test-tool diff --git a/contrib/buildsystems/Generators/Vcxproj.pm b/contrib/buildsystems/Generators/Vcxproj.pm index d2584450ba..1a25789d28 100644 --- a/contrib/buildsystems/Generators/Vcxproj.pm +++ b/contrib/buildsystems/Generators/Vcxproj.pm @@ -77,7 +77,7 @@ sub createProject { my $libs_release = "\n "; my $libs_debug = "\n "; if (!$static_library) { - $libs_release = join(";", sort(grep /^(?!libgit\.lib|xdiff\/lib\.lib|vcs-svn\/lib\.lib)/, @{$$build_structure{"$prefix${name}_LIBS"}})); + $libs_release = join(";", sort(grep /^(?!libgit\.lib|xdiff\/lib\.lib|vcs-svn\/lib\.lib|reftable\/libreftable\.lib)/, @{$$build_structure{"$prefix${name}_LIBS"}})); $libs_debug = $libs_release; $libs_debug =~ s/zlib\.lib/zlibd\.lib/g; $libs_debug =~ s/libexpat\.lib/libexpatd\.lib/g; @@ -232,6 +232,7 @@ EOM EOM if (!$static_library || $target =~ 'vcs-svn' || $target =~ 'xdiff') { my $uuid_libgit = $$build_structure{"LIBS_libgit_GUID"}; + my $uuid_libreftable = $$build_structure{"LIBS_reftable/libreftable_GUID"}; my $uuid_xdiff_lib = $$build_structure{"LIBS_xdiff/lib_GUID"}; print F << "EOM"; @@ -241,6 +242,14 @@ EOM <ReferenceOutputAssembly>false</ReferenceOutputAssembly> </ProjectReference> EOM + if (!($name =~ /xdiff|libreftable/)) { + print F << "EOM"; + <ProjectReference Include="$cdup\\reftable\\libreftable\\libreftable.vcxproj"> + <Project>$uuid_libreftable</Project> + <ReferenceOutputAssembly>false</ReferenceOutputAssembly> + </ProjectReference> +EOM + } if (!($name =~ 'xdiff')) { print F << "EOM"; <ProjectReference Include="$cdup\\xdiff\\lib\\xdiff_lib.vcxproj"> diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash index 63b3a6b22e..377d6c5494 100644 --- a/contrib/completion/git-completion.bash +++ b/contrib/completion/git-completion.bash @@ -1566,7 +1566,7 @@ _git_checkout () case "$cur" in --conflict=*) - __gitcomp "diff3 merge" "" "${cur##--conflict=}" + __gitcomp "diff3 merge zdiff3" "" "${cur##--conflict=}" ;; --*) __gitcomp_builtin checkout @@ -2437,7 +2437,7 @@ _git_switch () case "$cur" in --conflict=*) - __gitcomp "diff3 merge" "" "${cur##--conflict=}" + __gitcomp "diff3 merge zdiff3" "" "${cur##--conflict=}" ;; --*) __gitcomp_builtin switch @@ -2877,7 +2877,7 @@ _git_restore () case "$cur" in --conflict=*) - __gitcomp "diff3 merge" "" "${cur##--conflict=}" + __gitcomp "diff3 merge zdiff3" "" "${cur##--conflict=}" ;; --source=*) __git_complete_refs --cur="${cur##--source=}" diff --git a/contrib/scalar/.gitignore b/contrib/scalar/.gitignore new file mode 100644 index 0000000000..ff3d47e84d --- /dev/null +++ b/contrib/scalar/.gitignore @@ -0,0 +1,2 @@ +/*.exe +/scalar diff --git a/contrib/scalar/Makefile b/contrib/scalar/Makefile new file mode 100644 index 0000000000..231b1ee179 --- /dev/null +++ b/contrib/scalar/Makefile @@ -0,0 +1,45 @@ +QUIET_SUBDIR0 = +$(MAKE) -C # space to separate -C and subdir +QUIET_SUBDIR1 = + +ifneq ($(findstring s,$(MAKEFLAGS)),s) +ifndef V + QUIET_GEN = @echo ' ' GEN $@; + QUIET_SUBDIR0 = +@subdir= + QUIET_SUBDIR1 = ;$(NO_SUBDIR) echo ' ' SUBDIR $$subdir; \ + $(MAKE) $(PRINT_DIR) -C $$subdir +else + export V +endif +endif + +all: + +include ../../config.mak.uname +-include ../../config.mak.autogen +-include ../../config.mak + +TARGETS = scalar$(X) scalar.o +GITLIBS = ../../common-main.o ../../libgit.a ../../xdiff/lib.a + +all: scalar$(X) ../../bin-wrappers/scalar + +$(GITLIBS): + $(QUIET_SUBDIR0)../.. $(QUIET_SUBDIR1) $(subst ../../,,$@) + +$(TARGETS): $(GITLIBS) scalar.c + $(QUIET_SUBDIR0)../.. $(QUIET_SUBDIR1) $(patsubst %,contrib/scalar/%,$@) + +clean: + $(RM) $(TARGETS) ../../bin-wrappers/scalar + +../../bin-wrappers/scalar: ../../wrap-for-bin.sh Makefile + @mkdir -p ../../bin-wrappers + $(QUIET_GEN)sed -e '1s|#!.*/sh|#!$(SHELL_PATH_SQ)|' \ + -e 's|@@BUILD_DIR@@|$(shell cd ../.. && pwd)|' \ + -e 's|@@PROG@@|contrib/scalar/scalar$(X)|' < $< > $@ && \ + chmod +x $@ + +test: all + $(MAKE) -C t + +.PHONY: $(GITLIBS) all clean test FORCE diff --git a/contrib/scalar/README.md b/contrib/scalar/README.md new file mode 100644 index 0000000000..634b5771ed --- /dev/null +++ b/contrib/scalar/README.md @@ -0,0 +1,82 @@ +# Scalar - an opinionated repository management tool + +Scalar is an add-on to Git that helps users take advantage of advanced +performance features in Git. Originally implemented in C# using .NET Core, +based on the learnings from the VFS for Git project, most of the techniques +developed by the Scalar project have been integrated into core Git already: + +* partial clone, +* commit graphs, +* multi-pack index, +* sparse checkout (cone mode), +* scheduled background maintenance, +* etc + +This directory contains the remaining parts of Scalar that are not (yet) in +core Git. + +## Roadmap + +The idea is to populate this directory via incremental patch series and +eventually move to a top-level directory next to `gitk-git/` and to `git-gui/`. The +current plan involves the following patch series: + +- `scalar-the-beginning`: The initial patch series which sets up + `contrib/scalar/` and populates it with a minimal `scalar` command that + demonstrates the fundamental ideas. + +- `scalar-c-and-C`: The `scalar` command learns about two options that can be + specified before the command, `-c <key>=<value>` and `-C <directory>`. + +- `scalar-diagnose`: The `scalar` command is taught the `diagnose` subcommand. + +- `scalar-and-builtin-fsmonitor`: The built-in FSMonitor is enabled in `scalar + register` and in `scalar clone`, for an enormous performance boost when + working in large worktrees. This patch series necessarily depends on Jeff + Hostetler's FSMonitor patch series to be integrated into Git. + +- `scalar-gentler-config-locking`: Scalar enlistments are registered in the + user's Git config. This usually does not represent any problem because it is + rare for a user to register an enlistment. However, in Scalar's functional + tests, Scalar enlistments are created galore, and in parallel, which can lead + to lock contention. This patch series works around that problem by re-trying + to lock the config file in a gentle fashion. + +- `scalar-extra-docs`: Add some extensive documentation that has been written + in the original Scalar project (all subject to discussion, of course). + +- `optionally-install-scalar`: Now that Scalar is feature (and documentation) + complete and is verified in CI builds, let's offer to install it. + +- `move-scalar-to-toplevel`: Now that Scalar is complete, let's move it next to + `gitk-git/` and to `git-gui/`, making it a top-level command. + +The following two patch series exist in Microsoft's fork of Git and are +publicly available. There is no current plan to upstream them, not because I +want to withhold these patches, but because I don't think the Git community is +interested in these patches. + +There are some interesting ideas there, but the implementation is too specific +to Azure Repos and/or VFS for Git to be of much help in general (and also: my +colleagues tried to upstream some patches already and the enthusiasm for +integrating things related to Azure Repos and VFS for Git can be summarized in +very, very few words). + +These still exist mainly because the GVFS protocol is what Azure Repos has +instead of partial clone, while Git is focused on improving partial clone: + +- `scalar-with-gvfs`: The primary purpose of this patch series is to support + existing Scalar users whose repositories are hosted in Azure Repos (which + does not support Git's partial clones, but supports its predecessor, the GVFS + protocol, which is used by Scalar to emulate the partial clone). + + Since the GVFS protocol will never be supported by core Git, this patch + series will remain in Microsoft's fork of Git. + +- `run-scalar-functional-tests`: The Scalar project developed a quite + comprehensive set of integration tests (or, "Functional Tests"). They are the + sole remaining part of the original C#-based Scalar project, and this patch + adds a GitHub workflow that runs them all. + + Since the tests partially depend on features that are only provided in the + `scalar-with-gvfs` patch series, this patch cannot be upstreamed. diff --git a/contrib/scalar/scalar.c b/contrib/scalar/scalar.c new file mode 100644 index 0000000000..1ce9c2b00e --- /dev/null +++ b/contrib/scalar/scalar.c @@ -0,0 +1,826 @@ +/* + * The Scalar command-line interface. + */ + +#include "cache.h" +#include "gettext.h" +#include "parse-options.h" +#include "config.h" +#include "run-command.h" +#include "refs.h" +#include "dir.h" +#include "packfile.h" +#include "help.h" + +/* + * Remove the deepest subdirectory in the provided path string. Path must not + * include a trailing path separator. Returns 1 if parent directory found, + * otherwise 0. + */ +static int strbuf_parent_directory(struct strbuf *buf) +{ + size_t len = buf->len; + size_t offset = offset_1st_component(buf->buf); + char *path_sep = find_last_dir_sep(buf->buf + offset); + strbuf_setlen(buf, path_sep ? path_sep - buf->buf : offset); + + return buf->len < len; +} + +static void setup_enlistment_directory(int argc, const char **argv, + const char * const *usagestr, + const struct option *options, + struct strbuf *enlistment_root) +{ + struct strbuf path = STRBUF_INIT; + char *root; + int enlistment_found = 0; + + if (startup_info->have_repository) + BUG("gitdir already set up?!?"); + + if (argc > 1) + usage_with_options(usagestr, options); + + /* find the worktree, determine its corresponding root */ + if (argc == 1) + strbuf_add_absolute_path(&path, argv[0]); + else if (strbuf_getcwd(&path) < 0) + die(_("need a working directory")); + + strbuf_trim_trailing_dir_sep(&path); + do { + const size_t len = path.len; + + /* check if currently in enlistment root with src/ workdir */ + strbuf_addstr(&path, "/src"); + if (is_nonbare_repository_dir(&path)) { + if (enlistment_root) + strbuf_add(enlistment_root, path.buf, len); + + enlistment_found = 1; + break; + } + + /* reset to original path */ + strbuf_setlen(&path, len); + + /* check if currently in workdir */ + if (is_nonbare_repository_dir(&path)) { + if (enlistment_root) { + /* + * If the worktree's directory's name is `src`, the enlistment is the + * parent directory, otherwise it is identical to the worktree. + */ + root = strip_path_suffix(path.buf, "src"); + strbuf_addstr(enlistment_root, root ? root : path.buf); + free(root); + } + + enlistment_found = 1; + break; + } + } while (strbuf_parent_directory(&path)); + + if (!enlistment_found) + die(_("could not find enlistment root")); + + if (chdir(path.buf) < 0) + die_errno(_("could not switch to '%s'"), path.buf); + + strbuf_release(&path); + setup_git_directory(); +} + +static int run_git(const char *arg, ...) +{ + struct strvec argv = STRVEC_INIT; + va_list args; + const char *p; + int res; + + va_start(args, arg); + strvec_push(&argv, arg); + while ((p = va_arg(args, const char *))) + strvec_push(&argv, p); + va_end(args); + + res = run_command_v_opt(argv.v, RUN_GIT_CMD); + + strvec_clear(&argv); + return res; +} + +static int set_recommended_config(int reconfigure) +{ + struct { + const char *key; + const char *value; + int overwrite_on_reconfigure; + } config[] = { + /* Required */ + { "am.keepCR", "true", 1 }, + { "core.FSCache", "true", 1 }, + { "core.multiPackIndex", "true", 1 }, + { "core.preloadIndex", "true", 1 }, +#ifndef WIN32 + { "core.untrackedCache", "true", 1 }, +#else + /* + * Unfortunately, Scalar's Functional Tests demonstrated + * that the untracked cache feature is unreliable on Windows + * (which is a bummer because that platform would benefit the + * most from it). For some reason, freshly created files seem + * not to update the directory's `lastModified` time + * immediately, but the untracked cache would need to rely on + * that. + * + * Therefore, with a sad heart, we disable this very useful + * feature on Windows. + */ + { "core.untrackedCache", "false", 1 }, +#endif + { "core.logAllRefUpdates", "true", 1 }, + { "credential.https://dev.azure.com.useHttpPath", "true", 1 }, + { "credential.validate", "false", 1 }, /* GCM4W-only */ + { "gc.auto", "0", 1 }, + { "gui.GCWarning", "false", 1 }, + { "index.threads", "true", 1 }, + { "index.version", "4", 1 }, + { "merge.stat", "false", 1 }, + { "merge.renames", "true", 1 }, + { "pack.useBitmaps", "false", 1 }, + { "pack.useSparse", "true", 1 }, + { "receive.autoGC", "false", 1 }, + { "reset.quiet", "true", 1 }, + { "feature.manyFiles", "false", 1 }, + { "feature.experimental", "false", 1 }, + { "fetch.unpackLimit", "1", 1 }, + { "fetch.writeCommitGraph", "false", 1 }, +#ifdef WIN32 + { "http.sslBackend", "schannel", 1 }, +#endif + /* Optional */ + { "status.aheadBehind", "false" }, + { "commitGraph.generationVersion", "1" }, + { "core.autoCRLF", "false" }, + { "core.safeCRLF", "false" }, + { "fetch.showForcedUpdates", "false" }, + { NULL, NULL }, + }; + int i; + char *value; + + for (i = 0; config[i].key; i++) { + if ((reconfigure && config[i].overwrite_on_reconfigure) || + git_config_get_string(config[i].key, &value)) { + trace2_data_string("scalar", the_repository, config[i].key, "created"); + if (git_config_set_gently(config[i].key, + config[i].value) < 0) + return error(_("could not configure %s=%s"), + config[i].key, config[i].value); + } else { + trace2_data_string("scalar", the_repository, config[i].key, "exists"); + free(value); + } + } + + /* + * The `log.excludeDecoration` setting is special because it allows + * for multiple values. + */ + if (git_config_get_string("log.excludeDecoration", &value)) { + trace2_data_string("scalar", the_repository, + "log.excludeDecoration", "created"); + if (git_config_set_multivar_gently("log.excludeDecoration", + "refs/prefetch/*", + CONFIG_REGEX_NONE, 0)) + return error(_("could not configure " + "log.excludeDecoration")); + } else { + trace2_data_string("scalar", the_repository, + "log.excludeDecoration", "exists"); + free(value); + } + + return 0; +} + +static int toggle_maintenance(int enable) +{ + return run_git("maintenance", enable ? "start" : "unregister", NULL); +} + +static int add_or_remove_enlistment(int add) +{ + int res; + + if (!the_repository->worktree) + die(_("Scalar enlistments require a worktree")); + + res = run_git("config", "--global", "--get", "--fixed-value", + "scalar.repo", the_repository->worktree, NULL); + + /* + * If we want to add and the setting is already there, then do nothing. + * If we want to remove and the setting is not there, then do nothing. + */ + if ((add && !res) || (!add && res)) + return 0; + + return run_git("config", "--global", add ? "--add" : "--unset", + add ? "--no-fixed-value" : "--fixed-value", + "scalar.repo", the_repository->worktree, NULL); +} + +static int register_dir(void) +{ + int res = add_or_remove_enlistment(1); + + if (!res) + res = set_recommended_config(0); + + if (!res) + res = toggle_maintenance(1); + + return res; +} + +static int unregister_dir(void) +{ + int res = 0; + + if (toggle_maintenance(0) < 0) + res = -1; + + if (add_or_remove_enlistment(0) < 0) + res = -1; + + return res; +} + +/* printf-style interface, expects `<key>=<value>` argument */ +static int set_config(const char *fmt, ...) +{ + struct strbuf buf = STRBUF_INIT; + char *value; + int res; + va_list args; + + va_start(args, fmt); + strbuf_vaddf(&buf, fmt, args); + va_end(args); + + value = strchr(buf.buf, '='); + if (value) + *(value++) = '\0'; + res = git_config_set_gently(buf.buf, value); + strbuf_release(&buf); + + return res; +} + +static char *remote_default_branch(const char *url) +{ + struct child_process cp = CHILD_PROCESS_INIT; + struct strbuf out = STRBUF_INIT; + + cp.git_cmd = 1; + strvec_pushl(&cp.args, "ls-remote", "--symref", url, "HEAD", NULL); + if (!pipe_command(&cp, NULL, 0, &out, 0, NULL, 0)) { + const char *line = out.buf; + + while (*line) { + const char *eol = strchrnul(line, '\n'), *p; + size_t len = eol - line; + char *branch; + + if (!skip_prefix(line, "ref: ", &p) || + !strip_suffix_mem(line, &len, "\tHEAD")) { + line = eol + (*eol == '\n'); + continue; + } + + eol = line + len; + if (skip_prefix(p, "refs/heads/", &p)) { + branch = xstrndup(p, eol - p); + strbuf_release(&out); + return branch; + } + + error(_("remote HEAD is not a branch: '%.*s'"), + (int)(eol - p), p); + strbuf_release(&out); + return NULL; + } + } + warning(_("failed to get default branch name from remote; " + "using local default")); + strbuf_reset(&out); + + child_process_init(&cp); + cp.git_cmd = 1; + strvec_pushl(&cp.args, "symbolic-ref", "--short", "HEAD", NULL); + if (!pipe_command(&cp, NULL, 0, &out, 0, NULL, 0)) { + strbuf_trim(&out); + return strbuf_detach(&out, NULL); + } + + strbuf_release(&out); + error(_("failed to get default branch name")); + return NULL; +} + +static int delete_enlistment(struct strbuf *enlistment) +{ +#ifdef WIN32 + struct strbuf parent = STRBUF_INIT; +#endif + + if (unregister_dir()) + die(_("failed to unregister repository")); + +#ifdef WIN32 + /* + * Change the current directory to one outside of the enlistment so + * that we may delete everything underneath it. + */ + strbuf_addbuf(&parent, enlistment); + strbuf_parent_directory(&parent); + if (chdir(parent.buf) < 0) + die_errno(_("could not switch to '%s'"), parent.buf); + strbuf_release(&parent); +#endif + + if (remove_dir_recursively(enlistment, 0)) + die(_("failed to delete enlistment directory")); + + return 0; +} + +/* + * Dummy implementation; Using `get_version_info()` would cause a link error + * without this. + */ +void load_builtin_commands(const char *prefix, struct cmdnames *cmds) +{ + die("not implemented"); +} + +static int cmd_clone(int argc, const char **argv) +{ + const char *branch = NULL; + int full_clone = 0, single_branch = 0; + struct option clone_options[] = { + OPT_STRING('b', "branch", &branch, N_("<branch>"), + N_("branch to checkout after clone")), + OPT_BOOL(0, "full-clone", &full_clone, + N_("when cloning, create full working directory")), + OPT_BOOL(0, "single-branch", &single_branch, + N_("only download metadata for the branch that will " + "be checked out")), + OPT_END(), + }; + const char * const clone_usage[] = { + N_("scalar clone [<options>] [--] <repo> [<dir>]"), + NULL + }; + const char *url; + char *enlistment = NULL, *dir = NULL; + struct strbuf buf = STRBUF_INIT; + int res; + + argc = parse_options(argc, argv, NULL, clone_options, clone_usage, 0); + + if (argc == 2) { + url = argv[0]; + enlistment = xstrdup(argv[1]); + } else if (argc == 1) { + url = argv[0]; + + strbuf_addstr(&buf, url); + /* Strip trailing slashes, if any */ + while (buf.len > 0 && is_dir_sep(buf.buf[buf.len - 1])) + strbuf_setlen(&buf, buf.len - 1); + /* Strip suffix `.git`, if any */ + strbuf_strip_suffix(&buf, ".git"); + + enlistment = find_last_dir_sep(buf.buf); + if (!enlistment) { + die(_("cannot deduce worktree name from '%s'"), url); + } + enlistment = xstrdup(enlistment + 1); + } else { + usage_msg_opt(_("You must specify a repository to clone."), + clone_usage, clone_options); + } + + if (is_directory(enlistment)) + die(_("directory '%s' exists already"), enlistment); + + dir = xstrfmt("%s/src", enlistment); + + strbuf_reset(&buf); + if (branch) + strbuf_addf(&buf, "init.defaultBranch=%s", branch); + else { + char *b = repo_default_branch_name(the_repository, 1); + strbuf_addf(&buf, "init.defaultBranch=%s", b); + free(b); + } + + if ((res = run_git("-c", buf.buf, "init", "--", dir, NULL))) + goto cleanup; + + if (chdir(dir) < 0) { + res = error_errno(_("could not switch to '%s'"), dir); + goto cleanup; + } + + setup_git_directory(); + + /* common-main already logs `argv` */ + trace2_def_repo(the_repository); + + if (!branch && !(branch = remote_default_branch(url))) { + res = error(_("failed to get default branch for '%s'"), url); + goto cleanup; + } + + if (set_config("remote.origin.url=%s", url) || + set_config("remote.origin.fetch=" + "+refs/heads/%s:refs/remotes/origin/%s", + single_branch ? branch : "*", + single_branch ? branch : "*") || + set_config("remote.origin.promisor=true") || + set_config("remote.origin.partialCloneFilter=blob:none")) { + res = error(_("could not configure remote in '%s'"), dir); + goto cleanup; + } + + if (!full_clone && + (res = run_git("sparse-checkout", "init", "--cone", NULL))) + goto cleanup; + + if (set_recommended_config(0)) + return error(_("could not configure '%s'"), dir); + + if ((res = run_git("fetch", "--quiet", "origin", NULL))) { + warning(_("partial clone failed; attempting full clone")); + + if (set_config("remote.origin.promisor") || + set_config("remote.origin.partialCloneFilter")) { + res = error(_("could not configure for full clone")); + goto cleanup; + } + + if ((res = run_git("fetch", "--quiet", "origin", NULL))) + goto cleanup; + } + + if ((res = set_config("branch.%s.remote=origin", branch))) + goto cleanup; + if ((res = set_config("branch.%s.merge=refs/heads/%s", + branch, branch))) + goto cleanup; + + strbuf_reset(&buf); + strbuf_addf(&buf, "origin/%s", branch); + res = run_git("checkout", "-f", "-t", buf.buf, NULL); + if (res) + goto cleanup; + + res = register_dir(); + +cleanup: + free(enlistment); + free(dir); + strbuf_release(&buf); + return res; +} + +static int cmd_list(int argc, const char **argv) +{ + if (argc != 1) + die(_("`scalar list` does not take arguments")); + + if (run_git("config", "--global", "--get-all", "scalar.repo", NULL) < 0) + return -1; + return 0; +} + +static int cmd_register(int argc, const char **argv) +{ + struct option options[] = { + OPT_END(), + }; + const char * const usage[] = { + N_("scalar register [<enlistment>]"), + NULL + }; + + argc = parse_options(argc, argv, NULL, options, + usage, 0); + + setup_enlistment_directory(argc, argv, usage, options, NULL); + + return register_dir(); +} + +static int get_scalar_repos(const char *key, const char *value, void *data) +{ + struct string_list *list = data; + + if (!strcmp(key, "scalar.repo")) + string_list_append(list, value); + + return 0; +} + +static int cmd_reconfigure(int argc, const char **argv) +{ + int all = 0; + struct option options[] = { + OPT_BOOL('a', "all", &all, + N_("reconfigure all registered enlistments")), + OPT_END(), + }; + const char * const usage[] = { + N_("scalar reconfigure [--all | <enlistment>]"), + NULL + }; + struct string_list scalar_repos = STRING_LIST_INIT_DUP; + int i, res = 0; + struct repository r = { NULL }; + struct strbuf commondir = STRBUF_INIT, gitdir = STRBUF_INIT; + + argc = parse_options(argc, argv, NULL, options, + usage, 0); + + if (!all) { + setup_enlistment_directory(argc, argv, usage, options, NULL); + + return set_recommended_config(1); + } + + if (argc > 0) + usage_msg_opt(_("--all or <enlistment>, but not both"), + usage, options); + + git_config(get_scalar_repos, &scalar_repos); + + for (i = 0; i < scalar_repos.nr; i++) { + const char *dir = scalar_repos.items[i].string; + + strbuf_reset(&commondir); + strbuf_reset(&gitdir); + + if (chdir(dir) < 0) { + warning_errno(_("could not switch to '%s'"), dir); + res = -1; + } else if (discover_git_directory(&commondir, &gitdir) < 0) { + warning_errno(_("git repository gone in '%s'"), dir); + res = -1; + } else { + git_config_clear(); + + the_repository = &r; + r.commondir = commondir.buf; + r.gitdir = gitdir.buf; + + if (set_recommended_config(1) < 0) + res = -1; + } + } + + string_list_clear(&scalar_repos, 1); + strbuf_release(&commondir); + strbuf_release(&gitdir); + + return res; +} + +static int cmd_run(int argc, const char **argv) +{ + struct option options[] = { + OPT_END(), + }; + struct { + const char *arg, *task; + } tasks[] = { + { "config", NULL }, + { "commit-graph", "commit-graph" }, + { "fetch", "prefetch" }, + { "loose-objects", "loose-objects" }, + { "pack-files", "incremental-repack" }, + { NULL, NULL } + }; + struct strbuf buf = STRBUF_INIT; + const char *usagestr[] = { NULL, NULL }; + int i; + + strbuf_addstr(&buf, N_("scalar run <task> [<enlistment>]\nTasks:\n")); + for (i = 0; tasks[i].arg; i++) + strbuf_addf(&buf, "\t%s\n", tasks[i].arg); + usagestr[0] = buf.buf; + + argc = parse_options(argc, argv, NULL, options, + usagestr, 0); + + if (!argc) + usage_with_options(usagestr, options); + + if (!strcmp("all", argv[0])) { + i = -1; + } else { + for (i = 0; tasks[i].arg && strcmp(tasks[i].arg, argv[0]); i++) + ; /* keep looking for the task */ + + if (i > 0 && !tasks[i].arg) { + error(_("no such task: '%s'"), argv[0]); + usage_with_options(usagestr, options); + } + } + + argc--; + argv++; + setup_enlistment_directory(argc, argv, usagestr, options, NULL); + strbuf_release(&buf); + + if (i == 0) + return register_dir(); + + if (i > 0) + return run_git("maintenance", "run", + "--task", tasks[i].task, NULL); + + if (register_dir()) + return -1; + for (i = 1; tasks[i].arg; i++) + if (run_git("maintenance", "run", + "--task", tasks[i].task, NULL)) + return -1; + return 0; +} + +static int remove_deleted_enlistment(struct strbuf *path) +{ + int res = 0; + strbuf_realpath_forgiving(path, path->buf, 1); + + if (run_git("config", "--global", + "--unset", "--fixed-value", + "scalar.repo", path->buf, NULL) < 0) + res = -1; + + if (run_git("config", "--global", + "--unset", "--fixed-value", + "maintenance.repo", path->buf, NULL) < 0) + res = -1; + + return res; +} + +static int cmd_unregister(int argc, const char **argv) +{ + struct option options[] = { + OPT_END(), + }; + const char * const usage[] = { + N_("scalar unregister [<enlistment>]"), + NULL + }; + + argc = parse_options(argc, argv, NULL, options, + usage, 0); + + /* + * Be forgiving when the enlistment or worktree does not even exist any + * longer; This can be the case if a user deleted the worktree by + * mistake and _still_ wants to unregister the thing. + */ + if (argc == 1) { + struct strbuf src_path = STRBUF_INIT, workdir_path = STRBUF_INIT; + + strbuf_addf(&src_path, "%s/src/.git", argv[0]); + strbuf_addf(&workdir_path, "%s/.git", argv[0]); + if (!is_directory(src_path.buf) && !is_directory(workdir_path.buf)) { + /* remove possible matching registrations */ + int res = -1; + + strbuf_strip_suffix(&src_path, "/.git"); + res = remove_deleted_enlistment(&src_path) && res; + + strbuf_strip_suffix(&workdir_path, "/.git"); + res = remove_deleted_enlistment(&workdir_path) && res; + + strbuf_release(&src_path); + strbuf_release(&workdir_path); + return res; + } + strbuf_release(&src_path); + strbuf_release(&workdir_path); + } + + setup_enlistment_directory(argc, argv, usage, options, NULL); + + return unregister_dir(); +} + +static int cmd_delete(int argc, const char **argv) +{ + char *cwd = xgetcwd(); + struct option options[] = { + OPT_END(), + }; + const char * const usage[] = { + N_("scalar delete <enlistment>"), + NULL + }; + struct strbuf enlistment = STRBUF_INIT; + int res = 0; + + argc = parse_options(argc, argv, NULL, options, + usage, 0); + + if (argc != 1) + usage_with_options(usage, options); + + setup_enlistment_directory(argc, argv, usage, options, &enlistment); + + if (dir_inside_of(cwd, enlistment.buf) >= 0) + res = error(_("refusing to delete current working directory")); + else { + close_object_store(the_repository->objects); + res = delete_enlistment(&enlistment); + } + strbuf_release(&enlistment); + free(cwd); + + return res; +} + +static int cmd_version(int argc, const char **argv) +{ + int verbose = 0, build_options = 0; + struct option options[] = { + OPT__VERBOSE(&verbose, N_("include Git version")), + OPT_BOOL(0, "build-options", &build_options, + N_("include Git's build options")), + OPT_END(), + }; + const char * const usage[] = { + N_("scalar verbose [-v | --verbose] [--build-options]"), + NULL + }; + struct strbuf buf = STRBUF_INIT; + + argc = parse_options(argc, argv, NULL, options, + usage, 0); + + if (argc != 0) + usage_with_options(usage, options); + + get_version_info(&buf, build_options); + fprintf(stderr, "%s\n", buf.buf); + strbuf_release(&buf); + + return 0; +} + +static struct { + const char *name; + int (*fn)(int, const char **); +} builtins[] = { + { "clone", cmd_clone }, + { "list", cmd_list }, + { "register", cmd_register }, + { "unregister", cmd_unregister }, + { "run", cmd_run }, + { "reconfigure", cmd_reconfigure }, + { "delete", cmd_delete }, + { "version", cmd_version }, + { NULL, NULL}, +}; + +int cmd_main(int argc, const char **argv) +{ + struct strbuf scalar_usage = STRBUF_INIT; + int i; + + if (argc > 1) { + argv++; + argc--; + + for (i = 0; builtins[i].name; i++) + if (!strcmp(builtins[i].name, argv[0])) + return !!builtins[i].fn(argc, argv); + } + + strbuf_addstr(&scalar_usage, + N_("scalar <command> [<options>]\n\nCommands:\n")); + for (i = 0; builtins[i].name; i++) + strbuf_addf(&scalar_usage, "\t%s\n", builtins[i].name); + + usage(scalar_usage.buf); +} diff --git a/contrib/scalar/scalar.txt b/contrib/scalar/scalar.txt new file mode 100644 index 0000000000..f416d63728 --- /dev/null +++ b/contrib/scalar/scalar.txt @@ -0,0 +1,145 @@ +scalar(1) +========= + +NAME +---- +scalar - an opinionated repository management tool + +SYNOPSIS +-------- +[verse] +scalar clone [--single-branch] [--branch <main-branch>] [--full-clone] <url> [<enlistment>] +scalar list +scalar register [<enlistment>] +scalar unregister [<enlistment>] +scalar run ( all | config | commit-graph | fetch | loose-objects | pack-files ) [<enlistment>] +scalar reconfigure [ --all | <enlistment> ] +scalar delete <enlistment> + +DESCRIPTION +----------- + +Scalar is an opinionated repository management tool. By creating new +repositories or registering existing repositories with Scalar, your Git +experience will speed up. Scalar sets advanced Git config settings, +maintains your repositories in the background, and helps reduce data sent +across the network. + +An important Scalar concept is the enlistment: this is the top-level directory +of the project. It usually contains the subdirectory `src/` which is a Git +worktree. This encourages the separation between tracked files (inside `src/`) +and untracked files, such as build artifacts (outside `src/`). When registering +an existing Git worktree with Scalar whose name is not `src`, the enlistment +will be identical to the worktree. + +The `scalar` command implements various subcommands, and different options +depending on the subcommand. With the exception of `clone`, `list` and +`reconfigure --all`, all subcommands expect to be run in an enlistment. + +COMMANDS +-------- + +Clone +~~~~~ + +clone [<options>] <url> [<enlistment>]:: + Clones the specified repository, similar to linkgit:git-clone[1]. By + default, only commit and tree objects are cloned. Once finished, the + worktree is located at `<enlistment>/src`. ++ +The sparse-checkout feature is enabled (except when run with `--full-clone`) +and the only files present are those in the top-level directory. Use +`git sparse-checkout set` to expand the set of directories you want to see, +or `git sparse-checkout disable` to expand to all files (see +linkgit:git-sparse-checkout[1] for more details). You can explore the +subdirectories outside your sparse-checkout by using `git ls-tree +HEAD[:<directory>]`. + +-b <name>:: +--branch <name>:: + Instead of checking out the branch pointed to by the cloned + repository's HEAD, check out the `<name>` branch instead. + +--[no-]single-branch:: + Clone only the history leading to the tip of a single branch, either + specified by the `--branch` option or the primary branch remote's + `HEAD` points at. ++ +Further fetches into the resulting repository will only update the +remote-tracking branch for the branch this option was used for the initial +cloning. If the HEAD at the remote did not point at any branch when +`--single-branch` clone was made, no remote-tracking branch is created. + +--[no-]full-clone:: + A sparse-checkout is initialized by default. This behavior can be + turned off via `--full-clone`. + +List +~~~~ + +list:: + List enlistments that are currently registered by Scalar. This + subcommand does not need to be run inside an enlistment. + +Register +~~~~~~~~ + +register [<enlistment>]:: + Adds the enlistment's repository to the list of registered repositories + and starts background maintenance. If `<enlistment>` is not provided, + then the enlistment associated with the current working directory is + registered. ++ +Note: when this subcommand is called in a worktree that is called `src/`, its +parent directory is considered to be the Scalar enlistment. If the worktree is +_not_ called `src/`, it itself will be considered to be the Scalar enlistment. + +Unregister +~~~~~~~~~~ + +unregister [<enlistment>]:: + Remove the specified repository from the list of repositories + registered with Scalar and stop the scheduled background maintenance. + +Run +~~~ + +scalar run ( all | config | commit-graph | fetch | loose-objects | pack-files ) [<enlistment>]:: + Run the given maintenance task (or all tasks, if `all` was specified). + Except for `all` and `config`, this subcommand simply hands off to + linkgit:git-maintenance[1] (mapping `fetch` to `prefetch` and + `pack-files` to `incremental-repack`). ++ +These tasks are run automatically as part of the scheduled maintenance, +as soon as the repository is registered with Scalar. It should therefore +not be necessary to run this subcommand manually. ++ +The `config` task is specific to Scalar and configures all those +opinionated default settings that make Git work more efficiently with +large repositories. As this task is run as part of `scalar clone` +automatically, explicit invocations of this task are rarely needed. + +Reconfigure +~~~~~~~~~~~ + +After a Scalar upgrade, or when the configuration of a Scalar enlistment +was somehow corrupted or changed by mistake, this subcommand allows to +reconfigure the enlistment. + +With the `--all` option, all enlistments currently registered with Scalar +will be reconfigured. Use this option after each Scalar upgrade. + +Delete +~~~~~~ + +delete <enlistment>:: + This subcommand lets you delete an existing Scalar enlistment from your + local file system, unregistering the repository. + +SEE ALSO +-------- +linkgit:git-clone[1], linkgit:git-maintenance[1]. + +Scalar +--- +Associated with the linkgit:git[1] suite diff --git a/contrib/scalar/t/Makefile b/contrib/scalar/t/Makefile new file mode 100644 index 0000000000..6170672bb3 --- /dev/null +++ b/contrib/scalar/t/Makefile @@ -0,0 +1,78 @@ +# Run scalar tests +# +# Copyright (c) 2005,2021 Junio C Hamano, Johannes Schindelin +# + +-include ../../../config.mak.autogen +-include ../../../config.mak + +SHELL_PATH ?= $(SHELL) +PERL_PATH ?= /usr/bin/perl +RM ?= rm -f +PROVE ?= prove +DEFAULT_TEST_TARGET ?= test +TEST_LINT ?= test-lint + +ifdef TEST_OUTPUT_DIRECTORY +TEST_RESULTS_DIRECTORY = $(TEST_OUTPUT_DIRECTORY)/test-results +else +TEST_RESULTS_DIRECTORY = ../../../t/test-results +endif + +# Shell quote; +SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH)) +PERL_PATH_SQ = $(subst ','\'',$(PERL_PATH)) +TEST_RESULTS_DIRECTORY_SQ = $(subst ','\'',$(TEST_RESULTS_DIRECTORY)) + +T = $(sort $(wildcard t[0-9][0-9][0-9][0-9]-*.sh)) + +all: $(DEFAULT_TEST_TARGET) + +test: $(TEST_LINT) + $(MAKE) aggregate-results-and-cleanup + +prove: $(TEST_LINT) + @echo "*** prove ***"; GIT_CONFIG=.git/config $(PROVE) --exec '$(SHELL_PATH_SQ)' $(GIT_PROVE_OPTS) $(T) :: $(GIT_TEST_OPTS) + $(MAKE) clean-except-prove-cache + +$(T): + @echo "*** $@ ***"; GIT_CONFIG=.git/config '$(SHELL_PATH_SQ)' $@ $(GIT_TEST_OPTS) + +clean-except-prove-cache: + $(RM) -r 'trash directory'.* '$(TEST_RESULTS_DIRECTORY_SQ)' + $(RM) -r valgrind/bin + +clean: clean-except-prove-cache + $(RM) .prove + +test-lint: test-lint-duplicates test-lint-executable test-lint-shell-syntax + +test-lint-duplicates: + @dups=`echo $(T) | tr ' ' '\n' | sed 's/-.*//' | sort | uniq -d` && \ + test -z "$$dups" || { \ + echo >&2 "duplicate test numbers:" $$dups; exit 1; } + +test-lint-executable: + @bad=`for i in $(T); do test -x "$$i" || echo $$i; done` && \ + test -z "$$bad" || { \ + echo >&2 "non-executable tests:" $$bad; exit 1; } + +test-lint-shell-syntax: + @'$(PERL_PATH_SQ)' ../../../t/check-non-portable-shell.pl $(T) + +aggregate-results-and-cleanup: $(T) + $(MAKE) aggregate-results + $(MAKE) clean + +aggregate-results: + for f in '$(TEST_RESULTS_DIRECTORY_SQ)'/t*-*.counts; do \ + echo "$$f"; \ + done | '$(SHELL_PATH_SQ)' ../../../t/aggregate-results.sh + +valgrind: + $(MAKE) GIT_TEST_OPTS="$(GIT_TEST_OPTS) --valgrind" + +test-results: + mkdir -p test-results + +.PHONY: $(T) aggregate-results clean valgrind diff --git a/contrib/scalar/t/t9099-scalar.sh b/contrib/scalar/t/t9099-scalar.sh new file mode 100755 index 0000000000..2e1502ad45 --- /dev/null +++ b/contrib/scalar/t/t9099-scalar.sh @@ -0,0 +1,88 @@ +#!/bin/sh + +test_description='test the `scalar` command' + +TEST_DIRECTORY=$PWD/../../../t +export TEST_DIRECTORY + +# Make it work with --no-bin-wrappers +PATH=$PWD/..:$PATH + +. ../../../t/test-lib.sh + +GIT_TEST_MAINT_SCHEDULER="crontab:test-tool crontab ../cron.txt,launchctl:true,schtasks:true" +export GIT_TEST_MAINT_SCHEDULER + +test_expect_success 'scalar shows a usage' ' + test_expect_code 129 scalar -h +' + +test_expect_success 'scalar unregister' ' + git init vanish/src && + scalar register vanish/src && + git config --get --global --fixed-value \ + maintenance.repo "$(pwd)/vanish/src" && + scalar list >scalar.repos && + grep -F "$(pwd)/vanish/src" scalar.repos && + rm -rf vanish/src/.git && + scalar unregister vanish && + test_must_fail git config --get --global --fixed-value \ + maintenance.repo "$(pwd)/vanish/src" && + scalar list >scalar.repos && + ! grep -F "$(pwd)/vanish/src" scalar.repos +' + +test_expect_success 'set up repository to clone' ' + test_commit first && + test_commit second && + test_commit third && + git switch -c parallel first && + mkdir -p 1/2 && + test_commit 1/2/3 && + git config uploadPack.allowFilter true && + git config uploadPack.allowAnySHA1InWant true +' + +test_expect_success 'scalar clone' ' + second=$(git rev-parse --verify second:second.t) && + scalar clone "file://$(pwd)" cloned --single-branch && + ( + cd cloned/src && + + git config --get --global --fixed-value maintenance.repo \ + "$(pwd)" && + + git for-each-ref --format="%(refname)" refs/remotes/origin/ >actual && + echo "refs/remotes/origin/parallel" >expect && + test_cmp expect actual && + + test_path_is_missing 1/2 && + test_must_fail git rev-list --missing=print $second && + git rev-list $second && + git cat-file blob $second >actual && + echo "second" >expect && + test_cmp expect actual + ) +' + +test_expect_success 'scalar reconfigure' ' + git init one/src && + scalar register one && + git -C one/src config core.preloadIndex false && + scalar reconfigure one && + test true = "$(git -C one/src config core.preloadIndex)" && + git -C one/src config core.preloadIndex false && + scalar reconfigure -a && + test true = "$(git -C one/src config core.preloadIndex)" +' + +test_expect_success 'scalar delete without enlistment shows a usage' ' + test_expect_code 129 scalar delete +' + +test_expect_success 'scalar delete with enlistment' ' + scalar delete cloned && + test_path_is_missing cloned +' + +test_done @@ -326,22 +326,18 @@ static int run_access_hook(struct daemon_service *service, const char *dir, { struct child_process child = CHILD_PROCESS_INIT; struct strbuf buf = STRBUF_INIT; - const char *argv[8]; - const char **arg = argv; char *eol; int seen_errors = 0; - *arg++ = access_hook; - *arg++ = service->name; - *arg++ = path; - *arg++ = hi->hostname.buf; - *arg++ = get_canon_hostname(hi); - *arg++ = get_ip_address(hi); - *arg++ = hi->tcp_port.buf; - *arg = NULL; + strvec_push(&child.args, access_hook); + strvec_push(&child.args, service->name); + strvec_push(&child.args, path); + strvec_push(&child.args, hi->hostname.buf); + strvec_push(&child.args, get_canon_hostname(hi)); + strvec_push(&child.args, get_ip_address(hi)); + strvec_push(&child.args, hi->tcp_port.buf); child.use_shell = 1; - child.argv = argv; child.no_stdin = 1; child.no_stderr = 1; child.out = -1; @@ -922,7 +918,7 @@ static void handle(int incoming, struct sockaddr *addr, socklen_t addrlen) #endif } - cld.argv = cld_argv.v; + strvec_pushv(&cld.args, cld_argv.v); cld.in = incoming; cld.out = dup(incoming); @@ -6921,19 +6921,15 @@ static char *run_textconv(struct repository *r, size_t *outsize) { struct diff_tempfile *temp; - const char *argv[3]; - const char **arg = argv; struct child_process child = CHILD_PROCESS_INIT; struct strbuf buf = STRBUF_INIT; int err = 0; temp = prepare_temp_file(r, spec->path, spec); - *arg++ = pgm; - *arg++ = temp->name; - *arg = NULL; + strvec_push(&child.args, pgm); + strvec_push(&child.args, temp->name); child.use_shell = 1; - child.argv = argv; child.out = -1; if (start_command(&child)) { remove_tempfile(); @@ -1,6 +1,7 @@ #include "cache.h" #include "config.h" #include "strbuf.h" +#include "strvec.h" #include "run-command.h" #include "sigchain.h" @@ -55,7 +56,6 @@ static int launch_specified_editor(const char *editor, const char *path, if (strcmp(editor, ":")) { struct strbuf realpath = STRBUF_INIT; - const char *args[] = { editor, NULL, NULL }; struct child_process p = CHILD_PROCESS_INIT; int ret, sig; int print_waiting_for_editor = advice_enabled(ADVICE_WAITING_FOR_EDITOR) && isatty(2); @@ -77,10 +77,10 @@ static int launch_specified_editor(const char *editor, const char *path, } strbuf_realpath(&realpath, path, 1); - args[1] = realpath.buf; - p.argv = args; - p.env = env; + strvec_pushl(&p.args, editor, realpath.buf, NULL); + if (env) + strvec_pushv(&p.env_array, (const char **)env); p.use_shell = 1; p.trace2_child_class = "editor"; if (start_command(&p) < 0) { diff --git a/environment.c b/environment.c index 9da7f3c1a1..0d06a31024 100644 --- a/environment.c +++ b/environment.c @@ -42,6 +42,7 @@ const char *git_hooks_path; int zlib_compression_level = Z_BEST_SPEED; int pack_compression_level = Z_DEFAULT_COMPRESSION; int fsync_object_files; +int use_fsync = -1; size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE; size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT; size_t delta_base_cache_limit = 96 * 1024 * 1024; diff --git a/fmt-merge-msg.c b/fmt-merge-msg.c index 5216191488..e4f7810be2 100644 --- a/fmt-merge-msg.c +++ b/fmt-merge-msg.c @@ -533,8 +533,9 @@ static void fmt_merge_msg_sigs(struct strbuf *out) else { buf = payload.buf; len = payload.len; - if (check_signature(payload.buf, payload.len, sig.buf, - sig.len, &sigc) && + sigc.payload_type = SIGNATURE_PAYLOAD_TAG; + sigc.payload = strbuf_detach(&payload, &sigc.payload_len); + if (check_signature(&sigc, sig.buf, sig.len) && !sigc.output) strbuf_addstr(&sig, "gpg verification failed.\n"); else diff --git a/git-cvsserver.perl b/git-cvsserver.perl index 64319bed43..4c8118010a 100755 --- a/git-cvsserver.perl +++ b/git-cvsserver.perl @@ -3607,6 +3607,22 @@ package GITCVS::updater; use strict; use warnings; use DBI; +our $_use_fsync; + +# n.b. consider using Git.pm +sub use_fsync { + if (!defined($_use_fsync)) { + my $x = $ENV{GIT_TEST_FSYNC}; + if (defined $x) { + local $ENV{GIT_CONFIG}; + delete $ENV{GIT_CONFIG}; + my $v = ::safe_pipe_capture('git', '-c', "test.fsync=$x", + qw(config --type=bool test.fsync)); + $_use_fsync = defined($v) ? ($v eq "true\n") : 1; + } + } + $_use_fsync; +} =head1 METHODS @@ -3676,6 +3692,9 @@ sub new $self->{dbuser}, $self->{dbpass}); die "Error connecting to database\n" unless defined $self->{dbh}; + if ($self->{dbdriver} eq 'SQLite' && !use_fsync()) { + $self->{dbh}->do('PRAGMA synchronous = OFF'); + } $self->{tables} = {}; foreach my $table ( keys %{$self->{dbh}->table_info(undef,undef,undef,'TABLE')->fetchall_hashref('TABLE_NAME')} ) @@ -421,27 +421,30 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv) int status, help; struct stat st; const char *prefix; + int run_setup = (p->option & (RUN_SETUP | RUN_SETUP_GENTLY)); - prefix = NULL; help = argc == 2 && !strcmp(argv[1], "-h"); - if (!help) { - if (p->option & RUN_SETUP) - prefix = setup_git_directory(); - else if (p->option & RUN_SETUP_GENTLY) { - int nongit_ok; - prefix = setup_git_directory_gently(&nongit_ok); - } - precompose_argv_prefix(argc, argv, NULL); - if (use_pager == -1 && p->option & (RUN_SETUP | RUN_SETUP_GENTLY) && - !(p->option & DELAY_PAGER_CONFIG)) - use_pager = check_pager_config(p->cmd); - if (use_pager == -1 && p->option & USE_PAGER) - use_pager = 1; - - if ((p->option & (RUN_SETUP | RUN_SETUP_GENTLY)) && - startup_info->have_repository) /* get_git_dir() may set up repo, avoid that */ - trace_repo_setup(prefix); + if (help && (run_setup & RUN_SETUP)) + /* demote to GENTLY to allow 'git cmd -h' outside repo */ + run_setup = RUN_SETUP_GENTLY; + + if (run_setup & RUN_SETUP) { + prefix = setup_git_directory(); + } else if (run_setup & RUN_SETUP_GENTLY) { + int nongit_ok; + prefix = setup_git_directory_gently(&nongit_ok); + } else { + prefix = NULL; } + precompose_argv_prefix(argc, argv, NULL); + if (use_pager == -1 && run_setup && + !(p->option & DELAY_PAGER_CONFIG)) + use_pager = check_pager_config(p->cmd); + if (use_pager == -1 && p->option & USE_PAGER) + use_pager = 1; + if (run_setup && startup_info->have_repository) + /* get_git_dir() may set up repo, avoid that */ + trace_repo_setup(prefix); commit_pager_choice(); if (!help && get_super_prefix()) { diff --git a/gpg-interface.c b/gpg-interface.c index 3e7255a2a9..b52eb0e2e0 100644 --- a/gpg-interface.c +++ b/gpg-interface.c @@ -19,8 +19,8 @@ struct gpg_format { const char **verify_args; const char **sigs; int (*verify_signed_buffer)(struct signature_check *sigc, - struct gpg_format *fmt, const char *payload, - size_t payload_size, const char *signature, + struct gpg_format *fmt, + const char *signature, size_t signature_size); int (*sign_buffer)(struct strbuf *buffer, struct strbuf *signature, const char *signing_key); @@ -53,12 +53,12 @@ static const char *ssh_sigs[] = { }; static int verify_gpg_signed_buffer(struct signature_check *sigc, - struct gpg_format *fmt, const char *payload, - size_t payload_size, const char *signature, + struct gpg_format *fmt, + const char *signature, size_t signature_size); static int verify_ssh_signed_buffer(struct signature_check *sigc, - struct gpg_format *fmt, const char *payload, - size_t payload_size, const char *signature, + struct gpg_format *fmt, + const char *signature, size_t signature_size); static int sign_buffer_gpg(struct strbuf *buffer, struct strbuf *signature, const char *signing_key); @@ -314,8 +314,8 @@ error: } static int verify_gpg_signed_buffer(struct signature_check *sigc, - struct gpg_format *fmt, const char *payload, - size_t payload_size, const char *signature, + struct gpg_format *fmt, + const char *signature, size_t signature_size) { struct child_process gpg = CHILD_PROCESS_INIT; @@ -343,14 +343,13 @@ static int verify_gpg_signed_buffer(struct signature_check *sigc, NULL); sigchain_push(SIGPIPE, SIG_IGN); - ret = pipe_command(&gpg, payload, payload_size, &gpg_stdout, 0, + ret = pipe_command(&gpg, sigc->payload, sigc->payload_len, &gpg_stdout, 0, &gpg_stderr, 0); sigchain_pop(SIGPIPE); delete_tempfile(&temp); ret |= !strstr(gpg_stdout.buf, "\n[GNUPG:] GOODSIG "); - sigc->payload = xmemdupz(payload, payload_size); sigc->output = strbuf_detach(&gpg_stderr, NULL); sigc->gpg_status = strbuf_detach(&gpg_stdout, NULL); @@ -426,8 +425,8 @@ cleanup: } static int verify_ssh_signed_buffer(struct signature_check *sigc, - struct gpg_format *fmt, const char *payload, - size_t payload_size, const char *signature, + struct gpg_format *fmt, + const char *signature, size_t signature_size) { struct child_process ssh_keygen = CHILD_PROCESS_INIT; @@ -440,6 +439,13 @@ static int verify_ssh_signed_buffer(struct signature_check *sigc, struct strbuf ssh_principals_err = STRBUF_INIT; struct strbuf ssh_keygen_out = STRBUF_INIT; struct strbuf ssh_keygen_err = STRBUF_INIT; + struct strbuf verify_time = STRBUF_INIT; + const struct date_mode verify_date_mode = { + .type = DATE_STRFTIME, + .strftime_fmt = "%Y%m%d%H%M%S", + /* SSH signing key validity has no timezone information - Use the local timezone */ + .local = 1, + }; if (!ssh_allowed_signers) { error(_("gpg.ssh.allowedSignersFile needs to be configured and exist for ssh signature verification")); @@ -457,11 +463,16 @@ static int verify_ssh_signed_buffer(struct signature_check *sigc, return -1; } + if (sigc->payload_timestamp) + strbuf_addf(&verify_time, "-Overify-time=%s", + show_date(sigc->payload_timestamp, 0, &verify_date_mode)); + /* Find the principal from the signers */ strvec_pushl(&ssh_keygen.args, fmt->program, "-Y", "find-principals", "-f", ssh_allowed_signers, "-s", buffer_file->filename.buf, + verify_time.buf, NULL); ret = pipe_command(&ssh_keygen, NULL, 0, &ssh_principals_out, 0, &ssh_principals_err, 0); @@ -479,8 +490,9 @@ static int verify_ssh_signed_buffer(struct signature_check *sigc, "-Y", "check-novalidate", "-n", "git", "-s", buffer_file->filename.buf, + verify_time.buf, NULL); - pipe_command(&ssh_keygen, payload, payload_size, + pipe_command(&ssh_keygen, sigc->payload, sigc->payload_len, &ssh_keygen_out, 0, &ssh_keygen_err, 0); /* @@ -513,6 +525,7 @@ static int verify_ssh_signed_buffer(struct signature_check *sigc, "-f", ssh_allowed_signers, "-I", principal, "-s", buffer_file->filename.buf, + verify_time.buf, NULL); if (ssh_revocation_file) { @@ -526,7 +539,7 @@ static int verify_ssh_signed_buffer(struct signature_check *sigc, } sigchain_push(SIGPIPE, SIG_IGN); - ret = pipe_command(&ssh_keygen, payload, payload_size, + ret = pipe_command(&ssh_keygen, sigc->payload, sigc->payload_len, &ssh_keygen_out, 0, &ssh_keygen_err, 0); sigchain_pop(SIGPIPE); @@ -540,7 +553,6 @@ static int verify_ssh_signed_buffer(struct signature_check *sigc, } } - sigc->payload = xmemdupz(payload, payload_size); strbuf_stripspace(&ssh_keygen_out, 0); strbuf_stripspace(&ssh_keygen_err, 0); /* Add stderr outputs to show the user actual ssh-keygen errors */ @@ -558,12 +570,48 @@ out: strbuf_release(&ssh_principals_err); strbuf_release(&ssh_keygen_out); strbuf_release(&ssh_keygen_err); + strbuf_release(&verify_time); return ret; } -int check_signature(const char *payload, size_t plen, const char *signature, - size_t slen, struct signature_check *sigc) +static int parse_payload_metadata(struct signature_check *sigc) +{ + const char *ident_line = NULL; + size_t ident_len; + struct ident_split ident; + const char *signer_header; + + switch (sigc->payload_type) { + case SIGNATURE_PAYLOAD_COMMIT: + signer_header = "committer"; + break; + case SIGNATURE_PAYLOAD_TAG: + signer_header = "tagger"; + break; + case SIGNATURE_PAYLOAD_UNDEFINED: + case SIGNATURE_PAYLOAD_PUSH_CERT: + /* Ignore payloads we don't want to parse */ + return 0; + default: + BUG("invalid value for sigc->payload_type"); + } + + ident_line = find_commit_header(sigc->payload, signer_header, &ident_len); + if (!ident_line || !ident_len) + return 1; + + if (split_ident_line(&ident, ident_line, ident_len)) + return 1; + + if (!sigc->payload_timestamp && ident.date_begin && ident.date_end) + sigc->payload_timestamp = parse_timestamp(ident.date_begin, NULL, 10); + + return 0; +} + +int check_signature(struct signature_check *sigc, + const char *signature, size_t slen) { struct gpg_format *fmt; int status; @@ -575,8 +623,10 @@ int check_signature(const char *payload, size_t plen, const char *signature, if (!fmt) die(_("bad/incompatible signature '%s'"), signature); - status = fmt->verify_signed_buffer(sigc, fmt, payload, plen, signature, - slen); + if (parse_payload_metadata(sigc)) + return 1; + + status = fmt->verify_signed_buffer(sigc, fmt, signature, slen); if (status && !sigc->output) return !!status; @@ -593,7 +643,7 @@ void print_signature_buffer(const struct signature_check *sigc, unsigned flags) sigc->output; if (flags & GPG_VERIFY_VERBOSE && sigc->payload) - fputs(sigc->payload, stdout); + fwrite(sigc->payload, 1, sigc->payload_len, stdout); if (output) fputs(output, stderr); @@ -707,6 +757,21 @@ int git_gpg_config(const char *var, const char *value, void *cb) return 0; } +/* + * Returns 1 if `string` contains a literal ssh key, 0 otherwise + * `key` will be set to the start of the actual key if a prefix is present. + */ +static int is_literal_ssh_key(const char *string, const char **key) +{ + if (skip_prefix(string, "key::", key)) + return 1; + if (starts_with(string, "ssh-")) { + *key = string; + return 1; + } + return 0; +} + static char *get_ssh_key_fingerprint(const char *signing_key) { struct child_process ssh_keygen = CHILD_PROCESS_INIT; @@ -714,15 +779,16 @@ static char *get_ssh_key_fingerprint(const char *signing_key) struct strbuf fingerprint_stdout = STRBUF_INIT; struct strbuf **fingerprint; char *fingerprint_ret; + const char *literal_key = NULL; /* * With SSH Signing this can contain a filename or a public key * For textual representation we usually want a fingerprint */ - if (starts_with(signing_key, "ssh-")) { + if (is_literal_ssh_key(signing_key, &literal_key)) { strvec_pushl(&ssh_keygen.args, "ssh-keygen", "-lf", "-", NULL); - ret = pipe_command(&ssh_keygen, signing_key, - strlen(signing_key), &fingerprint_stdout, 0, + ret = pipe_command(&ssh_keygen, literal_key, + strlen(literal_key), &fingerprint_stdout, 0, NULL, 0); } else { strvec_pushl(&ssh_keygen.args, "ssh-keygen", "-lf", @@ -757,6 +823,7 @@ static const char *get_default_ssh_signing_key(void) const char **argv; int n; char *default_key = NULL; + const char *literal_key = NULL; if (!ssh_default_key_command) die(_("either user.signingkey or gpg.ssh.defaultKeyCommand needs to be configured")); @@ -774,7 +841,11 @@ static const char *get_default_ssh_signing_key(void) if (!ret) { keys = strbuf_split_max(&key_stdout, '\n', 2); - if (keys[0] && starts_with(keys[0]->buf, "ssh-")) { + if (keys[0] && is_literal_ssh_key(keys[0]->buf, &literal_key)) { + /* + * We only use `is_literal_ssh_key` here to check validity + * The prefix will be stripped when the key is used. + */ default_key = strbuf_detach(keys[0], NULL); } else { warning(_("gpg.ssh.defaultKeyCommand succeeded but returned no keys: %s %s"), @@ -889,19 +960,20 @@ static int sign_buffer_ssh(struct strbuf *buffer, struct strbuf *signature, struct tempfile *key_file = NULL, *buffer_file = NULL; char *ssh_signing_key_file = NULL; struct strbuf ssh_signature_filename = STRBUF_INIT; + const char *literal_key = NULL; if (!signing_key || signing_key[0] == '\0') return error( _("user.signingkey needs to be set for ssh signing")); - if (starts_with(signing_key, "ssh-")) { + if (is_literal_ssh_key(signing_key, &literal_key)) { /* A literal ssh key */ key_file = mks_tempfile_t(".git_signing_key_tmpXXXXXX"); if (!key_file) return error_errno( _("could not create temporary file")); - keylen = strlen(signing_key); - if (write_in_full(key_file->fd, signing_key, keylen) < 0 || + keylen = strlen(literal_key); + if (write_in_full(key_file->fd, literal_key, keylen) < 0 || close_tempfile_gently(key_file) < 0) { error_errno(_("failed writing ssh signing key to '%s'"), key_file->filename.buf); diff --git a/gpg-interface.h b/gpg-interface.h index beefacbb1e..b30cbdcd3d 100644 --- a/gpg-interface.h +++ b/gpg-interface.h @@ -15,8 +15,18 @@ enum signature_trust_level { TRUST_ULTIMATE, }; +enum payload_type { + SIGNATURE_PAYLOAD_UNDEFINED, + SIGNATURE_PAYLOAD_COMMIT, + SIGNATURE_PAYLOAD_TAG, + SIGNATURE_PAYLOAD_PUSH_CERT, +}; + struct signature_check { char *payload; + size_t payload_len; + enum payload_type payload_type; + timestamp_t payload_timestamp; char *output; char *gpg_status; @@ -70,9 +80,8 @@ const char *get_signing_key(void); * Either a GPG KeyID or a SSH Key Fingerprint */ const char *get_signing_key_id(void); -int check_signature(const char *payload, size_t plen, - const char *signature, size_t slen, - struct signature_check *sigc); +int check_signature(struct signature_check *sigc, + const char *signature, size_t slen); void print_signature_buffer(const struct signature_check *sigc, unsigned flags); @@ -95,12 +95,18 @@ static inline void git_SHA256_Clone(git_SHA256_CTX *dst, const git_SHA256_CTX *s /* Number of algorithms supported (including unknown). */ #define GIT_HASH_NALGOS (GIT_HASH_SHA256 + 1) +/* "sha1", big-endian */ +#define GIT_SHA1_FORMAT_ID 0x73686131 + /* The length in bytes and in hex digits of an object name (SHA-1 value). */ #define GIT_SHA1_RAWSZ 20 #define GIT_SHA1_HEXSZ (2 * GIT_SHA1_RAWSZ) /* The block size of SHA-1. */ #define GIT_SHA1_BLKSZ 64 +/* "s256", big-endian */ +#define GIT_SHA256_FORMAT_ID 0x73323536 + /* The length in bytes and in hex digits of an object name (SHA-256 value). */ #define GIT_SHA256_RAWSZ 32 #define GIT_SHA256_HEXSZ (2 * GIT_SHA256_RAWSZ) diff --git a/http-backend.c b/http-backend.c index 3d6e2ff17f..4dd4d939f8 100644 --- a/http-backend.c +++ b/http-backend.c @@ -480,7 +480,7 @@ static void run_service(const char **argv, int buffer_input) strvec_pushf(&cld.env_array, "GIT_COMMITTER_EMAIL=%s@http.%s", user, host); - cld.argv = argv; + strvec_pushv(&cld.args, argv); if (buffer_input || gzipped_request || req_len >= 0) cld.in = -1; cld.git_cmd = 1; @@ -2126,8 +2126,9 @@ int finish_http_pack_request(struct http_pack_request *preq) ip.git_cmd = 1; ip.in = tmpfile_fd; - ip.argv = preq->index_pack_args ? preq->index_pack_args - : default_index_pack_args; + strvec_pushv(&ip.args, preq->index_pack_args ? + preq->index_pack_args : + default_index_pack_args); if (preq->preserve_index_pack_stdout) ip.out = 0; diff --git a/log-tree.c b/log-tree.c index 644893fd8c..d3e7a40b64 100644 --- a/log-tree.c +++ b/log-tree.c @@ -513,8 +513,9 @@ static void show_signature(struct rev_info *opt, struct commit *commit) if (parse_signed_commit(commit, &payload, &signature, the_hash_algo) <= 0) goto out; - status = check_signature(payload.buf, payload.len, signature.buf, - signature.len, &sigc); + sigc.payload_type = SIGNATURE_PAYLOAD_COMMIT; + sigc.payload = strbuf_detach(&payload, &sigc.payload_len); + status = check_signature(&sigc, signature.buf, signature.len); if (status && !sigc.output) show_sig_lines(opt, status, "No signature\n"); else @@ -583,8 +584,9 @@ static int show_one_mergetag(struct commit *commit, status = -1; if (parse_signature(extra->value, extra->len, &payload, &signature)) { /* could have a good signature */ - status = check_signature(payload.buf, payload.len, - signature.buf, signature.len, &sigc); + sigc.payload_type = SIGNATURE_PAYLOAD_TAG; + sigc.payload = strbuf_detach(&payload, &sigc.payload_len); + status = check_signature(&sigc, signature.buf, signature.len); if (sigc.output) strbuf_addstr(&verify_message, sigc.output); else diff --git a/object-file.c b/object-file.c index eac67f6f5f..eb1426f98c 100644 --- a/object-file.c +++ b/object-file.c @@ -165,7 +165,6 @@ static void git_hash_unknown_final_oid(struct object_id *oid, git_hash_ctx *ctx) BUG("trying to finalize unknown hash"); } - const struct git_hash_algo hash_algos[GIT_HASH_NALGOS] = { { NULL, @@ -184,8 +183,7 @@ const struct git_hash_algo hash_algos[GIT_HASH_NALGOS] = { }, { "sha1", - /* "sha1", big-endian */ - 0x73686131, + GIT_SHA1_FORMAT_ID, GIT_SHA1_RAWSZ, GIT_SHA1_HEXSZ, GIT_SHA1_BLKSZ, @@ -200,8 +198,7 @@ const struct git_hash_algo hash_algos[GIT_HASH_NALGOS] = { }, { "sha256", - /* "s256", big-endian */ - 0x73323536, + GIT_SHA256_FORMAT_ID, GIT_SHA256_RAWSZ, GIT_SHA256_HEXSZ, GIT_SHA256_BLKSZ, @@ -797,7 +794,7 @@ static void fill_alternate_refs_command(struct child_process *cmd, } } - cmd->env = local_repo_env; + strvec_pushv(&cmd->env_array, (const char **)local_repo_env); cmd->out = -1; } @@ -199,7 +199,7 @@ struct object *lookup_object_by_type(struct repository *r, case OBJ_BLOB: return (struct object *)lookup_blob(r, oid); default: - die("BUG: unknown object type %d", type); + BUG("unknown object type %d", type); } } diff --git a/packfile.c b/packfile.c index e30b051c8a..11bb262482 100644 --- a/packfile.c +++ b/packfile.c @@ -324,7 +324,8 @@ void close_pack_index(struct packed_git *p) } } -void close_pack_revindex(struct packed_git *p) { +static void close_pack_revindex(struct packed_git *p) +{ if (!p->revindex_map) return; diff --git a/packfile.h b/packfile.h index 186146779d..a3f6723857 100644 --- a/packfile.h +++ b/packfile.h @@ -90,7 +90,6 @@ uint32_t get_pack_fanout(struct packed_git *p, uint32_t value); unsigned char *use_pack(struct packed_git *, struct pack_window **, off_t, unsigned long *); void close_pack_windows(struct packed_git *); -void close_pack_revindex(struct packed_git *); void close_pack(struct packed_git *); void close_object_store(struct raw_object_store *o); void unuse_pack(struct pack_window **); diff --git a/parse-options.c b/parse-options.c index fc5b43ff0b..629e796349 100644 --- a/parse-options.c +++ b/parse-options.c @@ -404,8 +404,9 @@ is_abbreviated: return PARSE_OPT_UNKNOWN; } -static int parse_nodash_opt(struct parse_opt_ctx_t *p, const char *arg, - const struct option *options) +static enum parse_opt_result parse_nodash_opt(struct parse_opt_ctx_t *p, + const char *arg, + const struct option *options) { const struct option *all_opts = options; @@ -415,7 +416,7 @@ static int parse_nodash_opt(struct parse_opt_ctx_t *p, const char *arg, if (options->short_name == arg[0] && arg[1] == '\0') return get_value(p, options, all_opts, OPT_SHORT); } - return -2; + return PARSE_OPT_ERROR; } static void check_typos(const char *arg, const struct option *options) diff --git a/pathspec.h b/pathspec.h index 2341dc9901..402ebb8080 100644 --- a/pathspec.h +++ b/pathspec.h @@ -58,8 +58,7 @@ struct pathspec { #define GUARD_PATHSPEC(ps, mask) \ do { \ if ((ps)->magic & ~(mask)) \ - die("BUG:%s:%d: unsupported magic %x", \ - __FILE__, __LINE__, (ps)->magic & ~(mask)); \ + BUG("unsupported magic %x", (ps)->magic & ~(mask)); \ } while (0) /* parse_pathspec flags */ diff --git a/perl/Git/SVN.pm b/perl/Git/SVN.pm index 35ff5a6896..6ce2e283c8 100644 --- a/perl/Git/SVN.pm +++ b/perl/Git/SVN.pm @@ -6,7 +6,7 @@ use constant rev_map_fmt => 'NH*'; use vars qw/$_no_metadata $_repack $_repack_flags $_use_svm_props $_head $_use_svnsync_props $no_reuse_existing - $_use_log_author $_add_author_from $_localtime/; + $_use_log_author $_add_author_from $_localtime $_use_fsync/; use Carp qw/croak/; use File::Path qw/mkpath/; use IPC::Open3; @@ -2269,6 +2269,19 @@ sub mkfile { } } +# TODO: move this to Git.pm? +sub use_fsync { + if (!defined($_use_fsync)) { + my $x = $ENV{GIT_TEST_FSYNC}; + if (defined $x) { + my $v = command_oneline('-c', "test.fsync=$x", + qw(config --type=bool test.fsync)); + $_use_fsync = defined($v) ? ($v eq "true\n") : 1; + } + } + $_use_fsync; +} + sub rev_map_set { my ($self, $rev, $commit, $update_ref, $uuid) = @_; defined $commit or die "missing arg3\n"; @@ -2290,7 +2303,7 @@ sub rev_map_set { my $sync; # both of these options make our .rev_db file very, very important # and we can't afford to lose it because rebuild() won't work - if ($self->use_svm_props || $self->no_metadata) { + if (($self->use_svm_props || $self->no_metadata) && use_fsync()) { require File::Copy; $sync = 1; File::Copy::copy($db, $db_lock) or die "rev_map_set(@_): ", @@ -1275,28 +1275,66 @@ int format_set_trailers_options(struct process_trailer_options *opts, static size_t parse_describe_args(const char *start, struct strvec *args) { - const char *options[] = { "match", "exclude" }; + struct { + char *name; + enum { + DESCRIBE_ARG_BOOL, + DESCRIBE_ARG_INTEGER, + DESCRIBE_ARG_STRING, + } type; + } option[] = { + { "tags", DESCRIBE_ARG_BOOL}, + { "abbrev", DESCRIBE_ARG_INTEGER }, + { "exclude", DESCRIBE_ARG_STRING }, + { "match", DESCRIBE_ARG_STRING }, + }; const char *arg = start; for (;;) { - const char *matched = NULL; + int found = 0; const char *argval; size_t arglen = 0; + int optval = 0; int i; - for (i = 0; i < ARRAY_SIZE(options); i++) { - if (match_placeholder_arg_value(arg, options[i], &arg, - &argval, &arglen)) { - matched = options[i]; + for (i = 0; !found && i < ARRAY_SIZE(option); i++) { + switch (option[i].type) { + case DESCRIBE_ARG_BOOL: + if (match_placeholder_bool_arg(arg, option[i].name, &arg, &optval)) { + if (optval) + strvec_pushf(args, "--%s", option[i].name); + else + strvec_pushf(args, "--no-%s", option[i].name); + found = 1; + } + break; + case DESCRIBE_ARG_INTEGER: + if (match_placeholder_arg_value(arg, option[i].name, &arg, + &argval, &arglen)) { + char *endptr; + if (!arglen) + return 0; + strtol(argval, &endptr, 10); + if (endptr - argval != arglen) + return 0; + strvec_pushf(args, "--%s=%.*s", option[i].name, (int)arglen, argval); + found = 1; + } + break; + case DESCRIBE_ARG_STRING: + if (match_placeholder_arg_value(arg, option[i].name, &arg, + &argval, &arglen)) { + if (!arglen) + return 0; + strvec_pushf(args, "--%s=%.*s", option[i].name, (int)arglen, argval); + found = 1; + } break; } } - if (!matched) + if (!found) break; - if (!arglen) - return 0; - strvec_pushf(args, "--%s=%.*s", matched, (int)arglen, argval); } return arg - start; } @@ -8,15 +8,12 @@ static char *do_askpass(const char *cmd, const char *prompt) { struct child_process pass = CHILD_PROCESS_INIT; - const char *args[3]; static struct strbuf buffer = STRBUF_INIT; int err = 0; - args[0] = cmd; - args[1] = prompt; - args[2] = NULL; + strvec_push(&pass.args, cmd); + strvec_push(&pass.args, prompt); - pass.argv = args; pass.out = -1; if (start_command(&pass)) @@ -1083,9 +1083,10 @@ int ref_transaction_update(struct ref_transaction *transaction, { assert(err); - if ((new_oid && !is_null_oid(new_oid)) ? - check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) : - !refname_is_safe(refname)) { + if (!(flags & REF_SKIP_REFNAME_VERIFICATION) && + ((new_oid && !is_null_oid(new_oid)) ? + check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) : + !refname_is_safe(refname))) { strbuf_addf(err, _("refusing to update ref with bad name '%s'"), refname); return -1; @@ -463,7 +463,29 @@ int delete_reflog(const char *refname); /* * Callback to process a reflog entry found by the iteration functions (see - * below) + * below). + * + * The committer parameter is a single string, in the form + * "$GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>" (without double quotes). + * + * The timestamp parameter gives the time when entry was created as the number + * of seconds since the UNIX epoch. + * + * The tz parameter gives the timezone offset for the user who created + * the reflog entry, and its value gives a positive or negative offset + * from UTC. Its absolute value is formed by multiplying the hour + * part by 100 and adding the minute part. For example, 1 hour ahead + * of UTC, CET == "+0100", is represented as positive one hundred (not + * postiive sixty). + * + * The msg parameter is a single complete line; a reflog message given + * to refs_delete_ref, refs_update_ref, etc. is returned to the + * callback normalized---each run of whitespaces are squashed into a + * single whitespace, trailing whitespace, if exists, is trimmed, and + * then a single LF is added at the end. + * + * The cb_data is a caller-supplied pointer given to the iterator + * functions. */ typedef int each_reflog_ent_fn( struct object_id *old_oid, struct object_id *new_oid, @@ -616,11 +638,23 @@ struct ref_transaction *ref_transaction_begin(struct strbuf *err); #define REF_FORCE_CREATE_REFLOG (1 << 1) /* + * Blindly write an object_id. This is useful for testing data corruption + * scenarios. + */ +#define REF_SKIP_OID_VERIFICATION (1 << 10) + +/* + * Skip verifying refname. This is useful for testing data corruption scenarios. + */ +#define REF_SKIP_REFNAME_VERIFICATION (1 << 11) + +/* * Bitmask of all of the flags that are allowed to be passed in to * ref_transaction_update() and friends: */ -#define REF_TRANSACTION_UPDATE_ALLOWED_FLAGS \ - (REF_NO_DEREF | REF_FORCE_CREATE_REFLOG) +#define REF_TRANSACTION_UPDATE_ALLOWED_FLAGS \ + (REF_NO_DEREF | REF_FORCE_CREATE_REFLOG | REF_SKIP_OID_VERIFICATION | \ + REF_SKIP_REFNAME_VERIFICATION) /* * Add a reference update to transaction. `new_oid` is the value that diff --git a/refs/debug.c b/refs/debug.c index 756d07c724..791423c6a7 100644 --- a/refs/debug.c +++ b/refs/debug.c @@ -284,6 +284,7 @@ static int debug_print_reflog_ent(struct object_id *old_oid, int ret; char o[GIT_MAX_HEXSZ + 1] = "null"; char n[GIT_MAX_HEXSZ + 1] = "null"; + char *msgend = strchrnul(msg, '\n'); if (old_oid) oid_to_hex_r(o, old_oid); if (new_oid) @@ -291,8 +292,10 @@ static int debug_print_reflog_ent(struct object_id *old_oid, ret = dbg->fn(old_oid, new_oid, committer, timestamp, tz, msg, dbg->cb_data); - trace_printf_key(&trace_refs, "reflog_ent %s (ret %d): %s -> %s, %s %ld \"%s\"\n", - dbg->refname, ret, o, n, committer, (long int)timestamp, msg); + trace_printf_key(&trace_refs, + "reflog_ent %s (ret %d): %s -> %s, %s %ld \"%.*s\"\n", + dbg->refname, ret, o, n, committer, + (long int)timestamp, (int)(msgend - msg), msg); return ret; } diff --git a/refs/files-backend.c b/refs/files-backend.c index 237a2afb5d..90b671025a 100644 --- a/refs/files-backend.c +++ b/refs/files-backend.c @@ -16,8 +16,7 @@ * This backend uses the following flags in `ref_update::flags` for * internal bookkeeping purposes. Their numerical values must not * conflict with REF_NO_DEREF, REF_FORCE_CREATE_REFLOG, REF_HAVE_NEW, - * REF_HAVE_OLD, or REF_IS_PRUNING, which are also stored in - * `ref_update::flags`. + * or REF_HAVE_OLD, which are also stored in `ref_update::flags`. */ /* @@ -1354,7 +1353,8 @@ static int rename_tmp_log(struct files_ref_store *refs, const char *newrefname) } static int write_ref_to_lockfile(struct ref_lock *lock, - const struct object_id *oid, struct strbuf *err); + const struct object_id *oid, + int skip_oid_verification, struct strbuf *err); static int commit_ref_update(struct files_ref_store *refs, struct ref_lock *lock, const struct object_id *oid, const char *logmsg, @@ -1501,7 +1501,7 @@ static int files_copy_or_rename_ref(struct ref_store *ref_store, } oidcpy(&lock->old_oid, &orig_oid); - if (write_ref_to_lockfile(lock, &orig_oid, &err) || + if (write_ref_to_lockfile(lock, &orig_oid, 0, &err) || commit_ref_update(refs, lock, &orig_oid, logmsg, &err)) { error("unable to write current sha1 into %s: %s", newrefname, err.buf); strbuf_release(&err); @@ -1521,7 +1521,7 @@ static int files_copy_or_rename_ref(struct ref_store *ref_store, flag = log_all_ref_updates; log_all_ref_updates = LOG_REFS_NONE; - if (write_ref_to_lockfile(lock, &orig_oid, &err) || + if (write_ref_to_lockfile(lock, &orig_oid, 0, &err) || commit_ref_update(refs, lock, &orig_oid, NULL, &err)) { error("unable to write current sha1 into %s: %s", oldrefname, err.buf); strbuf_release(&err); @@ -1756,26 +1756,31 @@ static int files_log_ref_write(struct files_ref_store *refs, * errors, rollback the lockfile, fill in *err and return -1. */ static int write_ref_to_lockfile(struct ref_lock *lock, - const struct object_id *oid, struct strbuf *err) + const struct object_id *oid, + int skip_oid_verification, struct strbuf *err) { static char term = '\n'; struct object *o; int fd; - o = parse_object(the_repository, oid); - if (!o) { - strbuf_addf(err, - "trying to write ref '%s' with nonexistent object %s", - lock->ref_name, oid_to_hex(oid)); - unlock_ref(lock); - return -1; - } - if (o->type != OBJ_COMMIT && is_branch(lock->ref_name)) { - strbuf_addf(err, - "trying to write non-commit object %s to branch '%s'", - oid_to_hex(oid), lock->ref_name); - unlock_ref(lock); - return -1; + if (!skip_oid_verification) { + o = parse_object(the_repository, oid); + if (!o) { + strbuf_addf( + err, + "trying to write ref '%s' with nonexistent object %s", + lock->ref_name, oid_to_hex(oid)); + unlock_ref(lock); + return -1; + } + if (o->type != OBJ_COMMIT && is_branch(lock->ref_name)) { + strbuf_addf( + err, + "trying to write non-commit object %s to branch '%s'", + oid_to_hex(oid), lock->ref_name); + unlock_ref(lock); + return -1; + } } fd = get_lock_file_fd(&lock->lk); if (write_in_full(fd, oid_to_hex(oid), the_hash_algo->hexsz) < 0 || @@ -2189,7 +2194,7 @@ static int files_reflog_iterator_advance(struct ref_iterator *ref_iterator) } static int files_reflog_iterator_peel(struct ref_iterator *ref_iterator, - struct object_id *peeled) + struct object_id *peeled) { BUG("ref_iterator_peel() called for reflog_iterator"); } @@ -2575,8 +2580,10 @@ static int lock_ref_for_update(struct files_ref_store *refs, * The reference already has the desired * value, so we don't need to write it. */ - } else if (write_ref_to_lockfile(lock, &update->new_oid, - err)) { + } else if (write_ref_to_lockfile( + lock, &update->new_oid, + update->flags & REF_SKIP_OID_VERIFICATION, + err)) { char *write_err = strbuf_detach(err, NULL); /* diff --git a/reftable/LICENSE b/reftable/LICENSE new file mode 100644 index 0000000000..402e0f9356 --- /dev/null +++ b/reftable/LICENSE @@ -0,0 +1,31 @@ +BSD License + +Copyright (c) 2020, Google LLC +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + +* Redistributions of source code must retain the above copyright notice, +this list of conditions and the following disclaimer. + +* Redistributions in binary form must reproduce the above copyright +notice, this list of conditions and the following disclaimer in the +documentation and/or other materials provided with the distribution. + +* Neither the name of Google LLC nor the names of its contributors may +be used to endorse or promote products derived from this software +without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/reftable/basics.c b/reftable/basics.c new file mode 100644 index 0000000000..f761e48028 --- /dev/null +++ b/reftable/basics.c @@ -0,0 +1,128 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "basics.h" + +void put_be24(uint8_t *out, uint32_t i) +{ + out[0] = (uint8_t)((i >> 16) & 0xff); + out[1] = (uint8_t)((i >> 8) & 0xff); + out[2] = (uint8_t)(i & 0xff); +} + +uint32_t get_be24(uint8_t *in) +{ + return (uint32_t)(in[0]) << 16 | (uint32_t)(in[1]) << 8 | + (uint32_t)(in[2]); +} + +void put_be16(uint8_t *out, uint16_t i) +{ + out[0] = (uint8_t)((i >> 8) & 0xff); + out[1] = (uint8_t)(i & 0xff); +} + +int binsearch(size_t sz, int (*f)(size_t k, void *args), void *args) +{ + size_t lo = 0; + size_t hi = sz; + + /* Invariants: + * + * (hi == sz) || f(hi) == true + * (lo == 0 && f(0) == true) || fi(lo) == false + */ + while (hi - lo > 1) { + size_t mid = lo + (hi - lo) / 2; + + if (f(mid, args)) + hi = mid; + else + lo = mid; + } + + if (lo) + return hi; + + return f(0, args) ? 0 : 1; +} + +void free_names(char **a) +{ + char **p; + if (!a) { + return; + } + for (p = a; *p; p++) { + reftable_free(*p); + } + reftable_free(a); +} + +int names_length(char **names) +{ + char **p = names; + for (; *p; p++) { + /* empty */ + } + return p - names; +} + +void parse_names(char *buf, int size, char ***namesp) +{ + char **names = NULL; + size_t names_cap = 0; + size_t names_len = 0; + + char *p = buf; + char *end = buf + size; + while (p < end) { + char *next = strchr(p, '\n'); + if (next && next < end) { + *next = 0; + } else { + next = end; + } + if (p < next) { + if (names_len == names_cap) { + names_cap = 2 * names_cap + 1; + names = reftable_realloc( + names, names_cap * sizeof(*names)); + } + names[names_len++] = xstrdup(p); + } + p = next + 1; + } + + names = reftable_realloc(names, (names_len + 1) * sizeof(*names)); + names[names_len] = NULL; + *namesp = names; +} + +int names_equal(char **a, char **b) +{ + int i = 0; + for (; a[i] && b[i]; i++) { + if (strcmp(a[i], b[i])) { + return 0; + } + } + + return a[i] == b[i]; +} + +int common_prefix_size(struct strbuf *a, struct strbuf *b) +{ + int p = 0; + for (; p < a->len && p < b->len; p++) { + if (a->buf[p] != b->buf[p]) + break; + } + + return p; +} diff --git a/reftable/basics.h b/reftable/basics.h new file mode 100644 index 0000000000..096b36862b --- /dev/null +++ b/reftable/basics.h @@ -0,0 +1,60 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef BASICS_H +#define BASICS_H + +/* + * miscellaneous utilities that are not provided by Git. + */ + +#include "system.h" + +/* Bigendian en/decoding of integers */ + +void put_be24(uint8_t *out, uint32_t i); +uint32_t get_be24(uint8_t *in); +void put_be16(uint8_t *out, uint16_t i); + +/* + * find smallest index i in [0, sz) at which f(i) is true, assuming + * that f is ascending. Return sz if f(i) is false for all indices. + * + * Contrary to bsearch(3), this returns something useful if the argument is not + * found. + */ +int binsearch(size_t sz, int (*f)(size_t k, void *args), void *args); + +/* + * Frees a NULL terminated array of malloced strings. The array itself is also + * freed. + */ +void free_names(char **a); + +/* parse a newline separated list of names. `size` is the length of the buffer, + * without terminating '\0'. Empty names are discarded. */ +void parse_names(char *buf, int size, char ***namesp); + +/* compares two NULL-terminated arrays of strings. */ +int names_equal(char **a, char **b); + +/* returns the array size of a NULL-terminated array of strings. */ +int names_length(char **names); + +/* Allocation routines; they invoke the functions set through + * reftable_set_alloc() */ +void *reftable_malloc(size_t sz); +void *reftable_realloc(void *p, size_t sz); +void reftable_free(void *p); +void *reftable_calloc(size_t sz); + +/* Find the longest shared prefix size of `a` and `b` */ +struct strbuf; +int common_prefix_size(struct strbuf *a, struct strbuf *b); + +#endif diff --git a/reftable/basics_test.c b/reftable/basics_test.c new file mode 100644 index 0000000000..1fcd229725 --- /dev/null +++ b/reftable/basics_test.c @@ -0,0 +1,98 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "system.h" + +#include "basics.h" +#include "test_framework.h" +#include "reftable-tests.h" + +struct binsearch_args { + int key; + int *arr; +}; + +static int binsearch_func(size_t i, void *void_args) +{ + struct binsearch_args *args = void_args; + + return args->key < args->arr[i]; +} + +static void test_binsearch(void) +{ + int arr[] = { 2, 4, 6, 8, 10 }; + size_t sz = ARRAY_SIZE(arr); + struct binsearch_args args = { + .arr = arr, + }; + + int i = 0; + for (i = 1; i < 11; i++) { + int res; + args.key = i; + res = binsearch(sz, &binsearch_func, &args); + + if (res < sz) { + EXPECT(args.key < arr[res]); + if (res > 0) { + EXPECT(args.key >= arr[res - 1]); + } + } else { + EXPECT(args.key == 10 || args.key == 11); + } + } +} + +static void test_names_length(void) +{ + char *a[] = { "a", "b", NULL }; + EXPECT(names_length(a) == 2); +} + +static void test_parse_names_normal(void) +{ + char in[] = "a\nb\n"; + char **out = NULL; + parse_names(in, strlen(in), &out); + EXPECT(!strcmp(out[0], "a")); + EXPECT(!strcmp(out[1], "b")); + EXPECT(!out[2]); + free_names(out); +} + +static void test_parse_names_drop_empty(void) +{ + char in[] = "a\n\n"; + char **out = NULL; + parse_names(in, strlen(in), &out); + EXPECT(!strcmp(out[0], "a")); + EXPECT(!out[1]); + free_names(out); +} + +static void test_common_prefix(void) +{ + struct strbuf s1 = STRBUF_INIT; + struct strbuf s2 = STRBUF_INIT; + strbuf_addstr(&s1, "abcdef"); + strbuf_addstr(&s2, "abc"); + EXPECT(common_prefix_size(&s1, &s2) == 3); + strbuf_release(&s1); + strbuf_release(&s2); +} + +int basics_test_main(int argc, const char *argv[]) +{ + RUN_TEST(test_common_prefix); + RUN_TEST(test_parse_names_normal); + RUN_TEST(test_parse_names_drop_empty); + RUN_TEST(test_binsearch); + RUN_TEST(test_names_length); + return 0; +} diff --git a/reftable/block.c b/reftable/block.c new file mode 100644 index 0000000000..855e3f5c94 --- /dev/null +++ b/reftable/block.c @@ -0,0 +1,437 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "block.h" + +#include "blocksource.h" +#include "constants.h" +#include "record.h" +#include "reftable-error.h" +#include "system.h" +#include <zlib.h> + +int header_size(int version) +{ + switch (version) { + case 1: + return 24; + case 2: + return 28; + } + abort(); +} + +int footer_size(int version) +{ + switch (version) { + case 1: + return 68; + case 2: + return 72; + } + abort(); +} + +static int block_writer_register_restart(struct block_writer *w, int n, + int is_restart, struct strbuf *key) +{ + int rlen = w->restart_len; + if (rlen >= MAX_RESTARTS) { + is_restart = 0; + } + + if (is_restart) { + rlen++; + } + if (2 + 3 * rlen + n > w->block_size - w->next) + return -1; + if (is_restart) { + if (w->restart_len == w->restart_cap) { + w->restart_cap = w->restart_cap * 2 + 1; + w->restarts = reftable_realloc( + w->restarts, sizeof(uint32_t) * w->restart_cap); + } + + w->restarts[w->restart_len++] = w->next; + } + + w->next += n; + + strbuf_reset(&w->last_key); + strbuf_addbuf(&w->last_key, key); + w->entries++; + return 0; +} + +void block_writer_init(struct block_writer *bw, uint8_t typ, uint8_t *buf, + uint32_t block_size, uint32_t header_off, int hash_size) +{ + bw->buf = buf; + bw->hash_size = hash_size; + bw->block_size = block_size; + bw->header_off = header_off; + bw->buf[header_off] = typ; + bw->next = header_off + 4; + bw->restart_interval = 16; + bw->entries = 0; + bw->restart_len = 0; + bw->last_key.len = 0; +} + +uint8_t block_writer_type(struct block_writer *bw) +{ + return bw->buf[bw->header_off]; +} + +/* adds the reftable_record to the block. Returns -1 if it does not fit, 0 on + success */ +int block_writer_add(struct block_writer *w, struct reftable_record *rec) +{ + struct strbuf empty = STRBUF_INIT; + struct strbuf last = + w->entries % w->restart_interval == 0 ? empty : w->last_key; + struct string_view out = { + .buf = w->buf + w->next, + .len = w->block_size - w->next, + }; + + struct string_view start = out; + + int is_restart = 0; + struct strbuf key = STRBUF_INIT; + int n = 0; + + reftable_record_key(rec, &key); + n = reftable_encode_key(&is_restart, out, last, key, + reftable_record_val_type(rec)); + if (n < 0) + goto done; + string_view_consume(&out, n); + + n = reftable_record_encode(rec, out, w->hash_size); + if (n < 0) + goto done; + string_view_consume(&out, n); + + if (block_writer_register_restart(w, start.len - out.len, is_restart, + &key) < 0) + goto done; + + strbuf_release(&key); + return 0; + +done: + strbuf_release(&key); + return -1; +} + +int block_writer_finish(struct block_writer *w) +{ + int i; + for (i = 0; i < w->restart_len; i++) { + put_be24(w->buf + w->next, w->restarts[i]); + w->next += 3; + } + + put_be16(w->buf + w->next, w->restart_len); + w->next += 2; + put_be24(w->buf + 1 + w->header_off, w->next); + + if (block_writer_type(w) == BLOCK_TYPE_LOG) { + int block_header_skip = 4 + w->header_off; + uLongf src_len = w->next - block_header_skip; + uLongf dest_cap = src_len * 1.001 + 12; + + uint8_t *compressed = reftable_malloc(dest_cap); + while (1) { + uLongf out_dest_len = dest_cap; + int zresult = compress2(compressed, &out_dest_len, + w->buf + block_header_skip, + src_len, 9); + if (zresult == Z_BUF_ERROR && dest_cap < LONG_MAX) { + dest_cap *= 2; + compressed = + reftable_realloc(compressed, dest_cap); + if (compressed) + continue; + } + + if (Z_OK != zresult) { + reftable_free(compressed); + return REFTABLE_ZLIB_ERROR; + } + + memcpy(w->buf + block_header_skip, compressed, + out_dest_len); + w->next = out_dest_len + block_header_skip; + reftable_free(compressed); + break; + } + } + return w->next; +} + +uint8_t block_reader_type(struct block_reader *r) +{ + return r->block.data[r->header_off]; +} + +int block_reader_init(struct block_reader *br, struct reftable_block *block, + uint32_t header_off, uint32_t table_block_size, + int hash_size) +{ + uint32_t full_block_size = table_block_size; + uint8_t typ = block->data[header_off]; + uint32_t sz = get_be24(block->data + header_off + 1); + + uint16_t restart_count = 0; + uint32_t restart_start = 0; + uint8_t *restart_bytes = NULL; + + if (!reftable_is_block_type(typ)) + return REFTABLE_FORMAT_ERROR; + + if (typ == BLOCK_TYPE_LOG) { + int block_header_skip = 4 + header_off; + uLongf dst_len = sz - block_header_skip; /* total size of dest + buffer. */ + uLongf src_len = block->len - block_header_skip; + /* Log blocks specify the *uncompressed* size in their header. + */ + uint8_t *uncompressed = reftable_malloc(sz); + + /* Copy over the block header verbatim. It's not compressed. */ + memcpy(uncompressed, block->data, block_header_skip); + + /* Uncompress */ + if (Z_OK != + uncompress2(uncompressed + block_header_skip, &dst_len, + block->data + block_header_skip, &src_len)) { + reftable_free(uncompressed); + return REFTABLE_ZLIB_ERROR; + } + + if (dst_len + block_header_skip != sz) + return REFTABLE_FORMAT_ERROR; + + /* We're done with the input data. */ + reftable_block_done(block); + block->data = uncompressed; + block->len = sz; + block->source = malloc_block_source(); + full_block_size = src_len + block_header_skip; + } else if (full_block_size == 0) { + full_block_size = sz; + } else if (sz < full_block_size && sz < block->len && + block->data[sz] != 0) { + /* If the block is smaller than the full block size, it is + padded (data followed by '\0') or the next block is + unaligned. */ + full_block_size = sz; + } + + restart_count = get_be16(block->data + sz - 2); + restart_start = sz - 2 - 3 * restart_count; + restart_bytes = block->data + restart_start; + + /* transfer ownership. */ + br->block = *block; + block->data = NULL; + block->len = 0; + + br->hash_size = hash_size; + br->block_len = restart_start; + br->full_block_size = full_block_size; + br->header_off = header_off; + br->restart_count = restart_count; + br->restart_bytes = restart_bytes; + + return 0; +} + +static uint32_t block_reader_restart_offset(struct block_reader *br, int i) +{ + return get_be24(br->restart_bytes + 3 * i); +} + +void block_reader_start(struct block_reader *br, struct block_iter *it) +{ + it->br = br; + strbuf_reset(&it->last_key); + it->next_off = br->header_off + 4; +} + +struct restart_find_args { + int error; + struct strbuf key; + struct block_reader *r; +}; + +static int restart_key_less(size_t idx, void *args) +{ + struct restart_find_args *a = args; + uint32_t off = block_reader_restart_offset(a->r, idx); + struct string_view in = { + .buf = a->r->block.data + off, + .len = a->r->block_len - off, + }; + + /* the restart key is verbatim in the block, so this could avoid the + alloc for decoding the key */ + struct strbuf rkey = STRBUF_INIT; + struct strbuf last_key = STRBUF_INIT; + uint8_t unused_extra; + int n = reftable_decode_key(&rkey, &unused_extra, last_key, in); + int result; + if (n < 0) { + a->error = 1; + return -1; + } + + result = strbuf_cmp(&a->key, &rkey); + strbuf_release(&rkey); + return result; +} + +void block_iter_copy_from(struct block_iter *dest, struct block_iter *src) +{ + dest->br = src->br; + dest->next_off = src->next_off; + strbuf_reset(&dest->last_key); + strbuf_addbuf(&dest->last_key, &src->last_key); +} + +int block_iter_next(struct block_iter *it, struct reftable_record *rec) +{ + struct string_view in = { + .buf = it->br->block.data + it->next_off, + .len = it->br->block_len - it->next_off, + }; + struct string_view start = in; + struct strbuf key = STRBUF_INIT; + uint8_t extra = 0; + int n = 0; + + if (it->next_off >= it->br->block_len) + return 1; + + n = reftable_decode_key(&key, &extra, it->last_key, in); + if (n < 0) + return -1; + + string_view_consume(&in, n); + n = reftable_record_decode(rec, key, extra, in, it->br->hash_size); + if (n < 0) + return -1; + string_view_consume(&in, n); + + strbuf_reset(&it->last_key); + strbuf_addbuf(&it->last_key, &key); + it->next_off += start.len - in.len; + strbuf_release(&key); + return 0; +} + +int block_reader_first_key(struct block_reader *br, struct strbuf *key) +{ + struct strbuf empty = STRBUF_INIT; + int off = br->header_off + 4; + struct string_view in = { + .buf = br->block.data + off, + .len = br->block_len - off, + }; + + uint8_t extra = 0; + int n = reftable_decode_key(key, &extra, empty, in); + if (n < 0) + return n; + + return 0; +} + +int block_iter_seek(struct block_iter *it, struct strbuf *want) +{ + return block_reader_seek(it->br, it, want); +} + +void block_iter_close(struct block_iter *it) +{ + strbuf_release(&it->last_key); +} + +int block_reader_seek(struct block_reader *br, struct block_iter *it, + struct strbuf *want) +{ + struct restart_find_args args = { + .key = *want, + .r = br, + }; + struct reftable_record rec = reftable_new_record(block_reader_type(br)); + struct strbuf key = STRBUF_INIT; + int err = 0; + struct block_iter next = { + .last_key = STRBUF_INIT, + }; + + int i = binsearch(br->restart_count, &restart_key_less, &args); + if (args.error) { + err = REFTABLE_FORMAT_ERROR; + goto done; + } + + it->br = br; + if (i > 0) { + i--; + it->next_off = block_reader_restart_offset(br, i); + } else { + it->next_off = br->header_off + 4; + } + + /* We're looking for the last entry less/equal than the wanted key, so + we have to go one entry too far and then back up. + */ + while (1) { + block_iter_copy_from(&next, it); + err = block_iter_next(&next, &rec); + if (err < 0) + goto done; + + reftable_record_key(&rec, &key); + if (err > 0 || strbuf_cmp(&key, want) >= 0) { + err = 0; + goto done; + } + + block_iter_copy_from(it, &next); + } + +done: + strbuf_release(&key); + strbuf_release(&next.last_key); + reftable_record_destroy(&rec); + + return err; +} + +void block_writer_release(struct block_writer *bw) +{ + FREE_AND_NULL(bw->restarts); + strbuf_release(&bw->last_key); + /* the block is not owned. */ +} + +void reftable_block_done(struct reftable_block *blockp) +{ + struct reftable_block_source source = blockp->source; + if (blockp && source.ops) + source.ops->return_block(source.arg, blockp); + blockp->data = NULL; + blockp->len = 0; + blockp->source.ops = NULL; + blockp->source.arg = NULL; +} diff --git a/reftable/block.h b/reftable/block.h new file mode 100644 index 0000000000..e207706a64 --- /dev/null +++ b/reftable/block.h @@ -0,0 +1,127 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef BLOCK_H +#define BLOCK_H + +#include "basics.h" +#include "record.h" +#include "reftable-blocksource.h" + +/* + * Writes reftable blocks. The block_writer is reused across blocks to minimize + * allocation overhead. + */ +struct block_writer { + uint8_t *buf; + uint32_t block_size; + + /* Offset ofof the global header. Nonzero in the first block only. */ + uint32_t header_off; + + /* How often to restart keys. */ + int restart_interval; + int hash_size; + + /* Offset of next uint8_t to write. */ + uint32_t next; + uint32_t *restarts; + uint32_t restart_len; + uint32_t restart_cap; + + struct strbuf last_key; + int entries; +}; + +/* + * initializes the blockwriter to write `typ` entries, using `buf` as temporary + * storage. `buf` is not owned by the block_writer. */ +void block_writer_init(struct block_writer *bw, uint8_t typ, uint8_t *buf, + uint32_t block_size, uint32_t header_off, int hash_size); + +/* returns the block type (eg. 'r' for ref records. */ +uint8_t block_writer_type(struct block_writer *bw); + +/* appends the record, or -1 if it doesn't fit. */ +int block_writer_add(struct block_writer *w, struct reftable_record *rec); + +/* appends the key restarts, and compress the block if necessary. */ +int block_writer_finish(struct block_writer *w); + +/* clears out internally allocated block_writer members. */ +void block_writer_release(struct block_writer *bw); + +/* Read a block. */ +struct block_reader { + /* offset of the block header; nonzero for the first block in a + * reftable. */ + uint32_t header_off; + + /* the memory block */ + struct reftable_block block; + int hash_size; + + /* size of the data, excluding restart data. */ + uint32_t block_len; + uint8_t *restart_bytes; + uint16_t restart_count; + + /* size of the data in the file. For log blocks, this is the compressed + * size. */ + uint32_t full_block_size; +}; + +/* Iterate over entries in a block */ +struct block_iter { + /* offset within the block of the next entry to read. */ + uint32_t next_off; + struct block_reader *br; + + /* key for last entry we read. */ + struct strbuf last_key; +}; + +/* initializes a block reader. */ +int block_reader_init(struct block_reader *br, struct reftable_block *bl, + uint32_t header_off, uint32_t table_block_size, + int hash_size); + +/* Position `it` at start of the block */ +void block_reader_start(struct block_reader *br, struct block_iter *it); + +/* Position `it` to the `want` key in the block */ +int block_reader_seek(struct block_reader *br, struct block_iter *it, + struct strbuf *want); + +/* Returns the block type (eg. 'r' for refs) */ +uint8_t block_reader_type(struct block_reader *r); + +/* Decodes the first key in the block */ +int block_reader_first_key(struct block_reader *br, struct strbuf *key); + +void block_iter_copy_from(struct block_iter *dest, struct block_iter *src); + +/* return < 0 for error, 0 for OK, > 0 for EOF. */ +int block_iter_next(struct block_iter *it, struct reftable_record *rec); + +/* Seek to `want` with in the block pointed to by `it` */ +int block_iter_seek(struct block_iter *it, struct strbuf *want); + +/* deallocate memory for `it`. The block reader and its block is left intact. */ +void block_iter_close(struct block_iter *it); + +/* size of file header, depending on format version */ +int header_size(int version); + +/* size of file footer, depending on format version */ +int footer_size(int version); + +/* returns a block to its source. */ +void reftable_block_done(struct reftable_block *ret); + +#endif diff --git a/reftable/block_test.c b/reftable/block_test.c new file mode 100644 index 0000000000..4b3ea262dc --- /dev/null +++ b/reftable/block_test.c @@ -0,0 +1,120 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "block.h" + +#include "system.h" +#include "blocksource.h" +#include "basics.h" +#include "constants.h" +#include "record.h" +#include "test_framework.h" +#include "reftable-tests.h" + +static void test_block_read_write(void) +{ + const int header_off = 21; /* random */ + char *names[30]; + const int N = ARRAY_SIZE(names); + const int block_size = 1024; + struct reftable_block block = { NULL }; + struct block_writer bw = { + .last_key = STRBUF_INIT, + }; + struct reftable_ref_record ref = { NULL }; + struct reftable_record rec = { NULL }; + int i = 0; + int n; + struct block_reader br = { 0 }; + struct block_iter it = { .last_key = STRBUF_INIT }; + int j = 0; + struct strbuf want = STRBUF_INIT; + + block.data = reftable_calloc(block_size); + block.len = block_size; + block.source = malloc_block_source(); + block_writer_init(&bw, BLOCK_TYPE_REF, block.data, block_size, + header_off, hash_size(GIT_SHA1_FORMAT_ID)); + reftable_record_from_ref(&rec, &ref); + + for (i = 0; i < N; i++) { + char name[100]; + uint8_t hash[GIT_SHA1_RAWSZ]; + snprintf(name, sizeof(name), "branch%02d", i); + memset(hash, i, sizeof(hash)); + + ref.refname = name; + ref.value_type = REFTABLE_REF_VAL1; + ref.value.val1 = hash; + + names[i] = xstrdup(name); + n = block_writer_add(&bw, &rec); + ref.refname = NULL; + ref.value_type = REFTABLE_REF_DELETION; + EXPECT(n == 0); + } + + n = block_writer_finish(&bw); + EXPECT(n > 0); + + block_writer_release(&bw); + + block_reader_init(&br, &block, header_off, block_size, GIT_SHA1_RAWSZ); + + block_reader_start(&br, &it); + + while (1) { + int r = block_iter_next(&it, &rec); + EXPECT(r >= 0); + if (r > 0) { + break; + } + EXPECT_STREQ(names[j], ref.refname); + j++; + } + + reftable_record_release(&rec); + block_iter_close(&it); + + for (i = 0; i < N; i++) { + struct block_iter it = { .last_key = STRBUF_INIT }; + strbuf_reset(&want); + strbuf_addstr(&want, names[i]); + + n = block_reader_seek(&br, &it, &want); + EXPECT(n == 0); + + n = block_iter_next(&it, &rec); + EXPECT(n == 0); + + EXPECT_STREQ(names[i], ref.refname); + + want.len--; + n = block_reader_seek(&br, &it, &want); + EXPECT(n == 0); + + n = block_iter_next(&it, &rec); + EXPECT(n == 0); + EXPECT_STREQ(names[10 * (i / 10)], ref.refname); + + block_iter_close(&it); + } + + reftable_record_release(&rec); + reftable_block_done(&br.block); + strbuf_release(&want); + for (i = 0; i < N; i++) { + reftable_free(names[i]); + } +} + +int block_test_main(int argc, const char *argv[]) +{ + RUN_TEST(test_block_read_write); + return 0; +} diff --git a/reftable/blocksource.c b/reftable/blocksource.c new file mode 100644 index 0000000000..0044eecd9a --- /dev/null +++ b/reftable/blocksource.c @@ -0,0 +1,148 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "system.h" + +#include "basics.h" +#include "blocksource.h" +#include "reftable-blocksource.h" +#include "reftable-error.h" + +static void strbuf_return_block(void *b, struct reftable_block *dest) +{ + memset(dest->data, 0xff, dest->len); + reftable_free(dest->data); +} + +static void strbuf_close(void *b) +{ +} + +static int strbuf_read_block(void *v, struct reftable_block *dest, uint64_t off, + uint32_t size) +{ + struct strbuf *b = v; + assert(off + size <= b->len); + dest->data = reftable_calloc(size); + memcpy(dest->data, b->buf + off, size); + dest->len = size; + return size; +} + +static uint64_t strbuf_size(void *b) +{ + return ((struct strbuf *)b)->len; +} + +static struct reftable_block_source_vtable strbuf_vtable = { + .size = &strbuf_size, + .read_block = &strbuf_read_block, + .return_block = &strbuf_return_block, + .close = &strbuf_close, +}; + +void block_source_from_strbuf(struct reftable_block_source *bs, + struct strbuf *buf) +{ + assert(!bs->ops); + bs->ops = &strbuf_vtable; + bs->arg = buf; +} + +static void malloc_return_block(void *b, struct reftable_block *dest) +{ + memset(dest->data, 0xff, dest->len); + reftable_free(dest->data); +} + +static struct reftable_block_source_vtable malloc_vtable = { + .return_block = &malloc_return_block, +}; + +static struct reftable_block_source malloc_block_source_instance = { + .ops = &malloc_vtable, +}; + +struct reftable_block_source malloc_block_source(void) +{ + return malloc_block_source_instance; +} + +struct file_block_source { + int fd; + uint64_t size; +}; + +static uint64_t file_size(void *b) +{ + return ((struct file_block_source *)b)->size; +} + +static void file_return_block(void *b, struct reftable_block *dest) +{ + memset(dest->data, 0xff, dest->len); + reftable_free(dest->data); +} + +static void file_close(void *b) +{ + int fd = ((struct file_block_source *)b)->fd; + if (fd > 0) { + close(fd); + ((struct file_block_source *)b)->fd = 0; + } + + reftable_free(b); +} + +static int file_read_block(void *v, struct reftable_block *dest, uint64_t off, + uint32_t size) +{ + struct file_block_source *b = v; + assert(off + size <= b->size); + dest->data = reftable_malloc(size); + if (pread(b->fd, dest->data, size, off) != size) + return -1; + dest->len = size; + return size; +} + +static struct reftable_block_source_vtable file_vtable = { + .size = &file_size, + .read_block = &file_read_block, + .return_block = &file_return_block, + .close = &file_close, +}; + +int reftable_block_source_from_file(struct reftable_block_source *bs, + const char *name) +{ + struct stat st = { 0 }; + int err = 0; + int fd = open(name, O_RDONLY); + struct file_block_source *p = NULL; + if (fd < 0) { + if (errno == ENOENT) { + return REFTABLE_NOT_EXIST_ERROR; + } + return -1; + } + + err = fstat(fd, &st); + if (err < 0) + return -1; + + p = reftable_calloc(sizeof(struct file_block_source)); + p->size = st.st_size; + p->fd = fd; + + assert(!bs->ops); + bs->ops = &file_vtable; + bs->arg = p; + return 0; +} diff --git a/reftable/blocksource.h b/reftable/blocksource.h new file mode 100644 index 0000000000..072e2727ad --- /dev/null +++ b/reftable/blocksource.h @@ -0,0 +1,22 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef BLOCKSOURCE_H +#define BLOCKSOURCE_H + +#include "system.h" + +struct reftable_block_source; + +/* Create an in-memory block source for reading reftables */ +void block_source_from_strbuf(struct reftable_block_source *bs, + struct strbuf *buf); + +struct reftable_block_source malloc_block_source(void); + +#endif diff --git a/reftable/constants.h b/reftable/constants.h new file mode 100644 index 0000000000..5eee72c4c1 --- /dev/null +++ b/reftable/constants.h @@ -0,0 +1,21 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef CONSTANTS_H +#define CONSTANTS_H + +#define BLOCK_TYPE_LOG 'g' +#define BLOCK_TYPE_INDEX 'i' +#define BLOCK_TYPE_REF 'r' +#define BLOCK_TYPE_OBJ 'o' +#define BLOCK_TYPE_ANY 0 + +#define MAX_RESTARTS ((1 << 16) - 1) +#define DEFAULT_BLOCK_SIZE 4096 + +#endif diff --git a/reftable/dump.c b/reftable/dump.c new file mode 100644 index 0000000000..155953d1b8 --- /dev/null +++ b/reftable/dump.c @@ -0,0 +1,107 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "git-compat-util.h" +#include "hash.h" + +#include "reftable-blocksource.h" +#include "reftable-error.h" +#include "reftable-merged.h" +#include "reftable-record.h" +#include "reftable-tests.h" +#include "reftable-writer.h" +#include "reftable-iterator.h" +#include "reftable-reader.h" +#include "reftable-stack.h" +#include "reftable-generic.h" + +#include <stddef.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> + +static int compact_stack(const char *stackdir) +{ + struct reftable_stack *stack = NULL; + struct reftable_write_options cfg = { 0 }; + + int err = reftable_new_stack(&stack, stackdir, cfg); + if (err < 0) + goto done; + + err = reftable_stack_compact_all(stack, NULL); + if (err < 0) + goto done; +done: + if (stack) { + reftable_stack_destroy(stack); + } + return err; +} + +static void print_help(void) +{ + printf("usage: dump [-cst] arg\n\n" + "options: \n" + " -c compact\n" + " -t dump table\n" + " -s dump stack\n" + " -6 sha256 hash format\n" + " -h this help\n" + "\n"); +} + +int reftable_dump_main(int argc, char *const *argv) +{ + int err = 0; + int opt_dump_table = 0; + int opt_dump_stack = 0; + int opt_compact = 0; + uint32_t opt_hash_id = GIT_SHA1_FORMAT_ID; + const char *arg = NULL, *argv0 = argv[0]; + + for (; argc > 1; argv++, argc--) + if (*argv[1] != '-') + break; + else if (!strcmp("-t", argv[1])) + opt_dump_table = 1; + else if (!strcmp("-6", argv[1])) + opt_hash_id = GIT_SHA256_FORMAT_ID; + else if (!strcmp("-s", argv[1])) + opt_dump_stack = 1; + else if (!strcmp("-c", argv[1])) + opt_compact = 1; + else if (!strcmp("-?", argv[1]) || !strcmp("-h", argv[1])) { + print_help(); + return 2; + } + + if (argc != 2) { + fprintf(stderr, "need argument\n"); + print_help(); + return 2; + } + + arg = argv[1]; + + if (opt_dump_table) { + err = reftable_reader_print_file(arg); + } else if (opt_dump_stack) { + err = reftable_stack_print_directory(arg, opt_hash_id); + } else if (opt_compact) { + err = compact_stack(arg); + } + + if (err < 0) { + fprintf(stderr, "%s: %s: %s\n", argv0, arg, + reftable_error_str(err)); + return 1; + } + return 0; +} diff --git a/reftable/error.c b/reftable/error.c new file mode 100644 index 0000000000..f6f16def92 --- /dev/null +++ b/reftable/error.c @@ -0,0 +1,41 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "reftable-error.h" + +#include <stdio.h> + +const char *reftable_error_str(int err) +{ + static char buf[250]; + switch (err) { + case REFTABLE_IO_ERROR: + return "I/O error"; + case REFTABLE_FORMAT_ERROR: + return "corrupt reftable file"; + case REFTABLE_NOT_EXIST_ERROR: + return "file does not exist"; + case REFTABLE_LOCK_ERROR: + return "data is outdated"; + case REFTABLE_API_ERROR: + return "misuse of the reftable API"; + case REFTABLE_ZLIB_ERROR: + return "zlib failure"; + case REFTABLE_NAME_CONFLICT: + return "file/directory conflict"; + case REFTABLE_EMPTY_TABLE_ERROR: + return "wrote empty table"; + case REFTABLE_REFNAME_ERROR: + return "invalid refname"; + case -1: + return "general error"; + default: + snprintf(buf, sizeof(buf), "unknown error code %d", err); + return buf; + } +} diff --git a/reftable/generic.c b/reftable/generic.c new file mode 100644 index 0000000000..7a8a738d86 --- /dev/null +++ b/reftable/generic.c @@ -0,0 +1,169 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "basics.h" +#include "record.h" +#include "generic.h" +#include "reftable-iterator.h" +#include "reftable-generic.h" + +int reftable_table_seek_ref(struct reftable_table *tab, + struct reftable_iterator *it, const char *name) +{ + struct reftable_ref_record ref = { + .refname = (char *)name, + }; + struct reftable_record rec = { NULL }; + reftable_record_from_ref(&rec, &ref); + return tab->ops->seek_record(tab->table_arg, it, &rec); +} + +int reftable_table_seek_log(struct reftable_table *tab, + struct reftable_iterator *it, const char *name) +{ + struct reftable_log_record log = { + .refname = (char *)name, + .update_index = ~((uint64_t)0), + }; + struct reftable_record rec = { NULL }; + reftable_record_from_log(&rec, &log); + return tab->ops->seek_record(tab->table_arg, it, &rec); +} + +int reftable_table_read_ref(struct reftable_table *tab, const char *name, + struct reftable_ref_record *ref) +{ + struct reftable_iterator it = { NULL }; + int err = reftable_table_seek_ref(tab, &it, name); + if (err) + goto done; + + err = reftable_iterator_next_ref(&it, ref); + if (err) + goto done; + + if (strcmp(ref->refname, name) || + reftable_ref_record_is_deletion(ref)) { + reftable_ref_record_release(ref); + err = 1; + goto done; + } + +done: + reftable_iterator_destroy(&it); + return err; +} + +int reftable_table_print(struct reftable_table *tab) { + struct reftable_iterator it = { NULL }; + struct reftable_ref_record ref = { NULL }; + struct reftable_log_record log = { NULL }; + uint32_t hash_id = reftable_table_hash_id(tab); + int err = reftable_table_seek_ref(tab, &it, ""); + if (err < 0) { + return err; + } + + while (1) { + err = reftable_iterator_next_ref(&it, &ref); + if (err > 0) { + break; + } + if (err < 0) { + return err; + } + reftable_ref_record_print(&ref, hash_id); + } + reftable_iterator_destroy(&it); + reftable_ref_record_release(&ref); + + err = reftable_table_seek_log(tab, &it, ""); + if (err < 0) { + return err; + } + while (1) { + err = reftable_iterator_next_log(&it, &log); + if (err > 0) { + break; + } + if (err < 0) { + return err; + } + reftable_log_record_print(&log, hash_id); + } + reftable_iterator_destroy(&it); + reftable_log_record_release(&log); + return 0; +} + +uint64_t reftable_table_max_update_index(struct reftable_table *tab) +{ + return tab->ops->max_update_index(tab->table_arg); +} + +uint64_t reftable_table_min_update_index(struct reftable_table *tab) +{ + return tab->ops->min_update_index(tab->table_arg); +} + +uint32_t reftable_table_hash_id(struct reftable_table *tab) +{ + return tab->ops->hash_id(tab->table_arg); +} + +void reftable_iterator_destroy(struct reftable_iterator *it) +{ + if (!it->ops) { + return; + } + it->ops->close(it->iter_arg); + it->ops = NULL; + FREE_AND_NULL(it->iter_arg); +} + +int reftable_iterator_next_ref(struct reftable_iterator *it, + struct reftable_ref_record *ref) +{ + struct reftable_record rec = { NULL }; + reftable_record_from_ref(&rec, ref); + return iterator_next(it, &rec); +} + +int reftable_iterator_next_log(struct reftable_iterator *it, + struct reftable_log_record *log) +{ + struct reftable_record rec = { NULL }; + reftable_record_from_log(&rec, log); + return iterator_next(it, &rec); +} + +int iterator_next(struct reftable_iterator *it, struct reftable_record *rec) +{ + return it->ops->next(it->iter_arg, rec); +} + +static int empty_iterator_next(void *arg, struct reftable_record *rec) +{ + return 1; +} + +static void empty_iterator_close(void *arg) +{ +} + +static struct reftable_iterator_vtable empty_vtable = { + .next = &empty_iterator_next, + .close = &empty_iterator_close, +}; + +void iterator_set_empty(struct reftable_iterator *it) +{ + assert(!it->ops); + it->iter_arg = NULL; + it->ops = &empty_vtable; +} diff --git a/reftable/generic.h b/reftable/generic.h new file mode 100644 index 0000000000..98886a0640 --- /dev/null +++ b/reftable/generic.h @@ -0,0 +1,32 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef GENERIC_H +#define GENERIC_H + +#include "record.h" +#include "reftable-generic.h" + +/* generic interface to reftables */ +struct reftable_table_vtable { + int (*seek_record)(void *tab, struct reftable_iterator *it, + struct reftable_record *); + uint32_t (*hash_id)(void *tab); + uint64_t (*min_update_index)(void *tab); + uint64_t (*max_update_index)(void *tab); +}; + +struct reftable_iterator_vtable { + int (*next)(void *iter_arg, struct reftable_record *rec); + void (*close)(void *iter_arg); +}; + +void iterator_set_empty(struct reftable_iterator *it); +int iterator_next(struct reftable_iterator *it, struct reftable_record *rec); + +#endif diff --git a/reftable/iter.c b/reftable/iter.c new file mode 100644 index 0000000000..93d04f735b --- /dev/null +++ b/reftable/iter.c @@ -0,0 +1,194 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "iter.h" + +#include "system.h" + +#include "block.h" +#include "generic.h" +#include "constants.h" +#include "reader.h" +#include "reftable-error.h" + +int iterator_is_null(struct reftable_iterator *it) +{ + return !it->ops; +} + +static void filtering_ref_iterator_close(void *iter_arg) +{ + struct filtering_ref_iterator *fri = iter_arg; + strbuf_release(&fri->oid); + reftable_iterator_destroy(&fri->it); +} + +static int filtering_ref_iterator_next(void *iter_arg, + struct reftable_record *rec) +{ + struct filtering_ref_iterator *fri = iter_arg; + struct reftable_ref_record *ref = rec->data; + int err = 0; + while (1) { + err = reftable_iterator_next_ref(&fri->it, ref); + if (err != 0) { + break; + } + + if (fri->double_check) { + struct reftable_iterator it = { NULL }; + + err = reftable_table_seek_ref(&fri->tab, &it, + ref->refname); + if (err == 0) { + err = reftable_iterator_next_ref(&it, ref); + } + + reftable_iterator_destroy(&it); + + if (err < 0) { + break; + } + + if (err > 0) { + continue; + } + } + + if (ref->value_type == REFTABLE_REF_VAL2 && + (!memcmp(fri->oid.buf, ref->value.val2.target_value, + fri->oid.len) || + !memcmp(fri->oid.buf, ref->value.val2.value, + fri->oid.len))) + return 0; + + if (ref->value_type == REFTABLE_REF_VAL1 && + !memcmp(fri->oid.buf, ref->value.val1, fri->oid.len)) { + return 0; + } + } + + reftable_ref_record_release(ref); + return err; +} + +static struct reftable_iterator_vtable filtering_ref_iterator_vtable = { + .next = &filtering_ref_iterator_next, + .close = &filtering_ref_iterator_close, +}; + +void iterator_from_filtering_ref_iterator(struct reftable_iterator *it, + struct filtering_ref_iterator *fri) +{ + assert(!it->ops); + it->iter_arg = fri; + it->ops = &filtering_ref_iterator_vtable; +} + +static void indexed_table_ref_iter_close(void *p) +{ + struct indexed_table_ref_iter *it = p; + block_iter_close(&it->cur); + reftable_block_done(&it->block_reader.block); + reftable_free(it->offsets); + strbuf_release(&it->oid); +} + +static int indexed_table_ref_iter_next_block(struct indexed_table_ref_iter *it) +{ + uint64_t off; + int err = 0; + if (it->offset_idx == it->offset_len) { + it->is_finished = 1; + return 1; + } + + reftable_block_done(&it->block_reader.block); + + off = it->offsets[it->offset_idx++]; + err = reader_init_block_reader(it->r, &it->block_reader, off, + BLOCK_TYPE_REF); + if (err < 0) { + return err; + } + if (err > 0) { + /* indexed block does not exist. */ + return REFTABLE_FORMAT_ERROR; + } + block_reader_start(&it->block_reader, &it->cur); + return 0; +} + +static int indexed_table_ref_iter_next(void *p, struct reftable_record *rec) +{ + struct indexed_table_ref_iter *it = p; + struct reftable_ref_record *ref = rec->data; + + while (1) { + int err = block_iter_next(&it->cur, rec); + if (err < 0) { + return err; + } + + if (err > 0) { + err = indexed_table_ref_iter_next_block(it); + if (err < 0) { + return err; + } + + if (it->is_finished) { + return 1; + } + continue; + } + /* BUG */ + if (!memcmp(it->oid.buf, ref->value.val2.target_value, + it->oid.len) || + !memcmp(it->oid.buf, ref->value.val2.value, it->oid.len)) { + return 0; + } + } +} + +int new_indexed_table_ref_iter(struct indexed_table_ref_iter **dest, + struct reftable_reader *r, uint8_t *oid, + int oid_len, uint64_t *offsets, int offset_len) +{ + struct indexed_table_ref_iter empty = INDEXED_TABLE_REF_ITER_INIT; + struct indexed_table_ref_iter *itr = + reftable_calloc(sizeof(struct indexed_table_ref_iter)); + int err = 0; + + *itr = empty; + itr->r = r; + strbuf_add(&itr->oid, oid, oid_len); + + itr->offsets = offsets; + itr->offset_len = offset_len; + + err = indexed_table_ref_iter_next_block(itr); + if (err < 0) { + reftable_free(itr); + } else { + *dest = itr; + } + return err; +} + +static struct reftable_iterator_vtable indexed_table_ref_iter_vtable = { + .next = &indexed_table_ref_iter_next, + .close = &indexed_table_ref_iter_close, +}; + +void iterator_from_indexed_table_ref_iter(struct reftable_iterator *it, + struct indexed_table_ref_iter *itr) +{ + assert(!it->ops); + it->iter_arg = itr; + it->ops = &indexed_table_ref_iter_vtable; +} diff --git a/reftable/iter.h b/reftable/iter.h new file mode 100644 index 0000000000..09eb0cbfa5 --- /dev/null +++ b/reftable/iter.h @@ -0,0 +1,69 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef ITER_H +#define ITER_H + +#include "system.h" +#include "block.h" +#include "record.h" + +#include "reftable-iterator.h" +#include "reftable-generic.h" + +/* Returns true for a zeroed out iterator, such as the one returned from + * iterator_destroy. */ +int iterator_is_null(struct reftable_iterator *it); + +/* iterator that produces only ref records that point to `oid` */ +struct filtering_ref_iterator { + int double_check; + struct reftable_table tab; + struct strbuf oid; + struct reftable_iterator it; +}; +#define FILTERING_REF_ITERATOR_INIT \ + { \ + .oid = STRBUF_INIT \ + } + +void iterator_from_filtering_ref_iterator(struct reftable_iterator *, + struct filtering_ref_iterator *); + +/* iterator that produces only ref records that point to `oid`, + * but using the object index. + */ +struct indexed_table_ref_iter { + struct reftable_reader *r; + struct strbuf oid; + + /* mutable */ + uint64_t *offsets; + + /* Points to the next offset to read. */ + int offset_idx; + int offset_len; + struct block_reader block_reader; + struct block_iter cur; + int is_finished; +}; + +#define INDEXED_TABLE_REF_ITER_INIT \ + { \ + .cur = { .last_key = STRBUF_INIT }, .oid = STRBUF_INIT, \ + } + +void iterator_from_indexed_table_ref_iter(struct reftable_iterator *it, + struct indexed_table_ref_iter *itr); + +/* Takes ownership of `offsets` */ +int new_indexed_table_ref_iter(struct indexed_table_ref_iter **dest, + struct reftable_reader *r, uint8_t *oid, + int oid_len, uint64_t *offsets, int offset_len); + +#endif diff --git a/reftable/merged.c b/reftable/merged.c new file mode 100644 index 0000000000..e5b53da6db --- /dev/null +++ b/reftable/merged.c @@ -0,0 +1,362 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "merged.h" + +#include "constants.h" +#include "iter.h" +#include "pq.h" +#include "reader.h" +#include "record.h" +#include "generic.h" +#include "reftable-merged.h" +#include "reftable-error.h" +#include "system.h" + +static int merged_iter_init(struct merged_iter *mi) +{ + int i = 0; + for (i = 0; i < mi->stack_len; i++) { + struct reftable_record rec = reftable_new_record(mi->typ); + int err = iterator_next(&mi->stack[i], &rec); + if (err < 0) { + return err; + } + + if (err > 0) { + reftable_iterator_destroy(&mi->stack[i]); + reftable_record_destroy(&rec); + } else { + struct pq_entry e = { + .rec = rec, + .index = i, + }; + merged_iter_pqueue_add(&mi->pq, e); + } + } + + return 0; +} + +static void merged_iter_close(void *p) +{ + struct merged_iter *mi = p; + int i = 0; + merged_iter_pqueue_release(&mi->pq); + for (i = 0; i < mi->stack_len; i++) { + reftable_iterator_destroy(&mi->stack[i]); + } + reftable_free(mi->stack); +} + +static int merged_iter_advance_nonnull_subiter(struct merged_iter *mi, + size_t idx) +{ + struct reftable_record rec = reftable_new_record(mi->typ); + struct pq_entry e = { + .rec = rec, + .index = idx, + }; + int err = iterator_next(&mi->stack[idx], &rec); + if (err < 0) + return err; + + if (err > 0) { + reftable_iterator_destroy(&mi->stack[idx]); + reftable_record_destroy(&rec); + return 0; + } + + merged_iter_pqueue_add(&mi->pq, e); + return 0; +} + +static int merged_iter_advance_subiter(struct merged_iter *mi, size_t idx) +{ + if (iterator_is_null(&mi->stack[idx])) + return 0; + return merged_iter_advance_nonnull_subiter(mi, idx); +} + +static int merged_iter_next_entry(struct merged_iter *mi, + struct reftable_record *rec) +{ + struct strbuf entry_key = STRBUF_INIT; + struct pq_entry entry = { 0 }; + int err = 0; + + if (merged_iter_pqueue_is_empty(mi->pq)) + return 1; + + entry = merged_iter_pqueue_remove(&mi->pq); + err = merged_iter_advance_subiter(mi, entry.index); + if (err < 0) + return err; + + /* + One can also use reftable as datacenter-local storage, where the ref + database is maintained in globally consistent database (eg. + CockroachDB or Spanner). In this scenario, replication delays together + with compaction may cause newer tables to contain older entries. In + such a deployment, the loop below must be changed to collect all + entries for the same key, and return new the newest one. + */ + reftable_record_key(&entry.rec, &entry_key); + while (!merged_iter_pqueue_is_empty(mi->pq)) { + struct pq_entry top = merged_iter_pqueue_top(mi->pq); + struct strbuf k = STRBUF_INIT; + int err = 0, cmp = 0; + + reftable_record_key(&top.rec, &k); + + cmp = strbuf_cmp(&k, &entry_key); + strbuf_release(&k); + + if (cmp > 0) { + break; + } + + merged_iter_pqueue_remove(&mi->pq); + err = merged_iter_advance_subiter(mi, top.index); + if (err < 0) { + return err; + } + reftable_record_destroy(&top.rec); + } + + reftable_record_copy_from(rec, &entry.rec, hash_size(mi->hash_id)); + reftable_record_destroy(&entry.rec); + strbuf_release(&entry_key); + return 0; +} + +static int merged_iter_next(struct merged_iter *mi, struct reftable_record *rec) +{ + while (1) { + int err = merged_iter_next_entry(mi, rec); + if (err == 0 && mi->suppress_deletions && + reftable_record_is_deletion(rec)) { + continue; + } + + return err; + } +} + +static int merged_iter_next_void(void *p, struct reftable_record *rec) +{ + struct merged_iter *mi = p; + if (merged_iter_pqueue_is_empty(mi->pq)) + return 1; + + return merged_iter_next(mi, rec); +} + +static struct reftable_iterator_vtable merged_iter_vtable = { + .next = &merged_iter_next_void, + .close = &merged_iter_close, +}; + +static void iterator_from_merged_iter(struct reftable_iterator *it, + struct merged_iter *mi) +{ + assert(!it->ops); + it->iter_arg = mi; + it->ops = &merged_iter_vtable; +} + +int reftable_new_merged_table(struct reftable_merged_table **dest, + struct reftable_table *stack, int n, + uint32_t hash_id) +{ + struct reftable_merged_table *m = NULL; + uint64_t last_max = 0; + uint64_t first_min = 0; + int i = 0; + for (i = 0; i < n; i++) { + uint64_t min = reftable_table_min_update_index(&stack[i]); + uint64_t max = reftable_table_max_update_index(&stack[i]); + + if (reftable_table_hash_id(&stack[i]) != hash_id) { + return REFTABLE_FORMAT_ERROR; + } + if (i == 0 || min < first_min) { + first_min = min; + } + if (i == 0 || max > last_max) { + last_max = max; + } + } + + m = reftable_calloc(sizeof(struct reftable_merged_table)); + m->stack = stack; + m->stack_len = n; + m->min = first_min; + m->max = last_max; + m->hash_id = hash_id; + *dest = m; + return 0; +} + +/* clears the list of subtable, without affecting the readers themselves. */ +void merged_table_release(struct reftable_merged_table *mt) +{ + FREE_AND_NULL(mt->stack); + mt->stack_len = 0; +} + +void reftable_merged_table_free(struct reftable_merged_table *mt) +{ + if (!mt) { + return; + } + merged_table_release(mt); + reftable_free(mt); +} + +uint64_t +reftable_merged_table_max_update_index(struct reftable_merged_table *mt) +{ + return mt->max; +} + +uint64_t +reftable_merged_table_min_update_index(struct reftable_merged_table *mt) +{ + return mt->min; +} + +static int reftable_table_seek_record(struct reftable_table *tab, + struct reftable_iterator *it, + struct reftable_record *rec) +{ + return tab->ops->seek_record(tab->table_arg, it, rec); +} + +static int merged_table_seek_record(struct reftable_merged_table *mt, + struct reftable_iterator *it, + struct reftable_record *rec) +{ + struct reftable_iterator *iters = reftable_calloc( + sizeof(struct reftable_iterator) * mt->stack_len); + struct merged_iter merged = { + .stack = iters, + .typ = reftable_record_type(rec), + .hash_id = mt->hash_id, + .suppress_deletions = mt->suppress_deletions, + }; + int n = 0; + int err = 0; + int i = 0; + for (i = 0; i < mt->stack_len && err == 0; i++) { + int e = reftable_table_seek_record(&mt->stack[i], &iters[n], + rec); + if (e < 0) { + err = e; + } + if (e == 0) { + n++; + } + } + if (err < 0) { + int i = 0; + for (i = 0; i < n; i++) { + reftable_iterator_destroy(&iters[i]); + } + reftable_free(iters); + return err; + } + + merged.stack_len = n; + err = merged_iter_init(&merged); + if (err < 0) { + merged_iter_close(&merged); + return err; + } else { + struct merged_iter *p = + reftable_malloc(sizeof(struct merged_iter)); + *p = merged; + iterator_from_merged_iter(it, p); + } + return 0; +} + +int reftable_merged_table_seek_ref(struct reftable_merged_table *mt, + struct reftable_iterator *it, + const char *name) +{ + struct reftable_ref_record ref = { + .refname = (char *)name, + }; + struct reftable_record rec = { NULL }; + reftable_record_from_ref(&rec, &ref); + return merged_table_seek_record(mt, it, &rec); +} + +int reftable_merged_table_seek_log_at(struct reftable_merged_table *mt, + struct reftable_iterator *it, + const char *name, uint64_t update_index) +{ + struct reftable_log_record log = { + .refname = (char *)name, + .update_index = update_index, + }; + struct reftable_record rec = { NULL }; + reftable_record_from_log(&rec, &log); + return merged_table_seek_record(mt, it, &rec); +} + +int reftable_merged_table_seek_log(struct reftable_merged_table *mt, + struct reftable_iterator *it, + const char *name) +{ + uint64_t max = ~((uint64_t)0); + return reftable_merged_table_seek_log_at(mt, it, name, max); +} + +uint32_t reftable_merged_table_hash_id(struct reftable_merged_table *mt) +{ + return mt->hash_id; +} + +static int reftable_merged_table_seek_void(void *tab, + struct reftable_iterator *it, + struct reftable_record *rec) +{ + return merged_table_seek_record(tab, it, rec); +} + +static uint32_t reftable_merged_table_hash_id_void(void *tab) +{ + return reftable_merged_table_hash_id(tab); +} + +static uint64_t reftable_merged_table_min_update_index_void(void *tab) +{ + return reftable_merged_table_min_update_index(tab); +} + +static uint64_t reftable_merged_table_max_update_index_void(void *tab) +{ + return reftable_merged_table_max_update_index(tab); +} + +static struct reftable_table_vtable merged_table_vtable = { + .seek_record = reftable_merged_table_seek_void, + .hash_id = reftable_merged_table_hash_id_void, + .min_update_index = reftable_merged_table_min_update_index_void, + .max_update_index = reftable_merged_table_max_update_index_void, +}; + +void reftable_table_from_merged_table(struct reftable_table *tab, + struct reftable_merged_table *merged) +{ + assert(!tab->ops); + tab->ops = &merged_table_vtable; + tab->table_arg = merged; +} diff --git a/reftable/merged.h b/reftable/merged.h new file mode 100644 index 0000000000..7d9f95d27e --- /dev/null +++ b/reftable/merged.h @@ -0,0 +1,38 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef MERGED_H +#define MERGED_H + +#include "pq.h" + +struct reftable_merged_table { + struct reftable_table *stack; + size_t stack_len; + uint32_t hash_id; + + /* If unset, produce deletions. This is useful for compaction. For the + * full stack, deletions should be produced. */ + int suppress_deletions; + + uint64_t min; + uint64_t max; +}; + +struct merged_iter { + struct reftable_iterator *stack; + uint32_t hash_id; + size_t stack_len; + uint8_t typ; + int suppress_deletions; + struct merged_iter_pqueue pq; +}; + +void merged_table_release(struct reftable_merged_table *mt); + +#endif diff --git a/reftable/merged_test.c b/reftable/merged_test.c new file mode 100644 index 0000000000..24461e8a80 --- /dev/null +++ b/reftable/merged_test.c @@ -0,0 +1,468 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "merged.h" + +#include "system.h" + +#include "basics.h" +#include "blocksource.h" +#include "constants.h" +#include "reader.h" +#include "record.h" +#include "test_framework.h" +#include "reftable-merged.h" +#include "reftable-tests.h" +#include "reftable-generic.h" +#include "reftable-writer.h" + +static void write_test_table(struct strbuf *buf, + struct reftable_ref_record refs[], int n) +{ + int min = 0xffffffff; + int max = 0; + int i = 0; + int err; + + struct reftable_write_options opts = { + .block_size = 256, + }; + struct reftable_writer *w = NULL; + for (i = 0; i < n; i++) { + uint64_t ui = refs[i].update_index; + if (ui > max) { + max = ui; + } + if (ui < min) { + min = ui; + } + } + + w = reftable_new_writer(&strbuf_add_void, buf, &opts); + reftable_writer_set_limits(w, min, max); + + for (i = 0; i < n; i++) { + uint64_t before = refs[i].update_index; + int n = reftable_writer_add_ref(w, &refs[i]); + EXPECT(n == 0); + EXPECT(before == refs[i].update_index); + } + + err = reftable_writer_close(w); + EXPECT_ERR(err); + + reftable_writer_free(w); +} + +static void write_test_log_table(struct strbuf *buf, + struct reftable_log_record logs[], int n, + uint64_t update_index) +{ + int i = 0; + int err; + + struct reftable_write_options opts = { + .block_size = 256, + .exact_log_message = 1, + }; + struct reftable_writer *w = NULL; + w = reftable_new_writer(&strbuf_add_void, buf, &opts); + reftable_writer_set_limits(w, update_index, update_index); + + for (i = 0; i < n; i++) { + int err = reftable_writer_add_log(w, &logs[i]); + EXPECT_ERR(err); + } + + err = reftable_writer_close(w); + EXPECT_ERR(err); + + reftable_writer_free(w); +} + +static struct reftable_merged_table * +merged_table_from_records(struct reftable_ref_record **refs, + struct reftable_block_source **source, + struct reftable_reader ***readers, int *sizes, + struct strbuf *buf, int n) +{ + int i = 0; + struct reftable_merged_table *mt = NULL; + int err; + struct reftable_table *tabs = + reftable_calloc(n * sizeof(struct reftable_table)); + *readers = reftable_calloc(n * sizeof(struct reftable_reader *)); + *source = reftable_calloc(n * sizeof(**source)); + for (i = 0; i < n; i++) { + write_test_table(&buf[i], refs[i], sizes[i]); + block_source_from_strbuf(&(*source)[i], &buf[i]); + + err = reftable_new_reader(&(*readers)[i], &(*source)[i], + "name"); + EXPECT_ERR(err); + reftable_table_from_reader(&tabs[i], (*readers)[i]); + } + + err = reftable_new_merged_table(&mt, tabs, n, GIT_SHA1_FORMAT_ID); + EXPECT_ERR(err); + return mt; +} + +static void readers_destroy(struct reftable_reader **readers, size_t n) +{ + int i = 0; + for (; i < n; i++) + reftable_reader_free(readers[i]); + reftable_free(readers); +} + +static void test_merged_between(void) +{ + uint8_t hash1[GIT_SHA1_RAWSZ] = { 1, 2, 3, 0 }; + + struct reftable_ref_record r1[] = { { + .refname = "b", + .update_index = 1, + .value_type = REFTABLE_REF_VAL1, + .value.val1 = hash1, + } }; + struct reftable_ref_record r2[] = { { + .refname = "a", + .update_index = 2, + .value_type = REFTABLE_REF_DELETION, + } }; + + struct reftable_ref_record *refs[] = { r1, r2 }; + int sizes[] = { 1, 1 }; + struct strbuf bufs[2] = { STRBUF_INIT, STRBUF_INIT }; + struct reftable_block_source *bs = NULL; + struct reftable_reader **readers = NULL; + struct reftable_merged_table *mt = + merged_table_from_records(refs, &bs, &readers, sizes, bufs, 2); + int i; + struct reftable_ref_record ref = { NULL }; + struct reftable_iterator it = { NULL }; + int err = reftable_merged_table_seek_ref(mt, &it, "a"); + EXPECT_ERR(err); + + err = reftable_iterator_next_ref(&it, &ref); + EXPECT_ERR(err); + EXPECT(ref.update_index == 2); + reftable_ref_record_release(&ref); + reftable_iterator_destroy(&it); + readers_destroy(readers, 2); + reftable_merged_table_free(mt); + for (i = 0; i < ARRAY_SIZE(bufs); i++) { + strbuf_release(&bufs[i]); + } + reftable_free(bs); +} + +static void test_merged(void) +{ + uint8_t hash1[GIT_SHA1_RAWSZ] = { 1 }; + uint8_t hash2[GIT_SHA1_RAWSZ] = { 2 }; + struct reftable_ref_record r1[] = { + { + .refname = "a", + .update_index = 1, + .value_type = REFTABLE_REF_VAL1, + .value.val1 = hash1, + }, + { + .refname = "b", + .update_index = 1, + .value_type = REFTABLE_REF_VAL1, + .value.val1 = hash1, + }, + { + .refname = "c", + .update_index = 1, + .value_type = REFTABLE_REF_VAL1, + .value.val1 = hash1, + } + }; + struct reftable_ref_record r2[] = { { + .refname = "a", + .update_index = 2, + .value_type = REFTABLE_REF_DELETION, + } }; + struct reftable_ref_record r3[] = { + { + .refname = "c", + .update_index = 3, + .value_type = REFTABLE_REF_VAL1, + .value.val1 = hash2, + }, + { + .refname = "d", + .update_index = 3, + .value_type = REFTABLE_REF_VAL1, + .value.val1 = hash1, + }, + }; + + struct reftable_ref_record want[] = { + r2[0], + r1[1], + r3[0], + r3[1], + }; + + struct reftable_ref_record *refs[] = { r1, r2, r3 }; + int sizes[3] = { 3, 1, 2 }; + struct strbuf bufs[3] = { STRBUF_INIT, STRBUF_INIT, STRBUF_INIT }; + struct reftable_block_source *bs = NULL; + struct reftable_reader **readers = NULL; + struct reftable_merged_table *mt = + merged_table_from_records(refs, &bs, &readers, sizes, bufs, 3); + + struct reftable_iterator it = { NULL }; + int err = reftable_merged_table_seek_ref(mt, &it, "a"); + struct reftable_ref_record *out = NULL; + size_t len = 0; + size_t cap = 0; + int i = 0; + + EXPECT_ERR(err); + EXPECT(reftable_merged_table_hash_id(mt) == GIT_SHA1_FORMAT_ID); + EXPECT(reftable_merged_table_min_update_index(mt) == 1); + + while (len < 100) { /* cap loops/recursion. */ + struct reftable_ref_record ref = { NULL }; + int err = reftable_iterator_next_ref(&it, &ref); + if (err > 0) { + break; + } + if (len == cap) { + cap = 2 * cap + 1; + out = reftable_realloc( + out, sizeof(struct reftable_ref_record) * cap); + } + out[len++] = ref; + } + reftable_iterator_destroy(&it); + + EXPECT(ARRAY_SIZE(want) == len); + for (i = 0; i < len; i++) { + EXPECT(reftable_ref_record_equal(&want[i], &out[i], + GIT_SHA1_RAWSZ)); + } + for (i = 0; i < len; i++) { + reftable_ref_record_release(&out[i]); + } + reftable_free(out); + + for (i = 0; i < 3; i++) { + strbuf_release(&bufs[i]); + } + readers_destroy(readers, 3); + reftable_merged_table_free(mt); + reftable_free(bs); +} + +static struct reftable_merged_table * +merged_table_from_log_records(struct reftable_log_record **logs, + struct reftable_block_source **source, + struct reftable_reader ***readers, int *sizes, + struct strbuf *buf, int n) +{ + int i = 0; + struct reftable_merged_table *mt = NULL; + int err; + struct reftable_table *tabs = + reftable_calloc(n * sizeof(struct reftable_table)); + *readers = reftable_calloc(n * sizeof(struct reftable_reader *)); + *source = reftable_calloc(n * sizeof(**source)); + for (i = 0; i < n; i++) { + write_test_log_table(&buf[i], logs[i], sizes[i], i + 1); + block_source_from_strbuf(&(*source)[i], &buf[i]); + + err = reftable_new_reader(&(*readers)[i], &(*source)[i], + "name"); + EXPECT_ERR(err); + reftable_table_from_reader(&tabs[i], (*readers)[i]); + } + + err = reftable_new_merged_table(&mt, tabs, n, GIT_SHA1_FORMAT_ID); + EXPECT_ERR(err); + return mt; +} + +static void test_merged_logs(void) +{ + uint8_t hash1[GIT_SHA1_RAWSZ] = { 1 }; + uint8_t hash2[GIT_SHA1_RAWSZ] = { 2 }; + uint8_t hash3[GIT_SHA1_RAWSZ] = { 3 }; + struct reftable_log_record r1[] = { + { + .refname = "a", + .update_index = 2, + .value_type = REFTABLE_LOG_UPDATE, + .value.update = { + .old_hash = hash2, + /* deletion */ + .name = "jane doe", + .email = "jane@invalid", + .message = "message2", + } + }, + { + .refname = "a", + .update_index = 1, + .value_type = REFTABLE_LOG_UPDATE, + .value.update = { + .old_hash = hash1, + .new_hash = hash2, + .name = "jane doe", + .email = "jane@invalid", + .message = "message1", + } + }, + }; + struct reftable_log_record r2[] = { + { + .refname = "a", + .update_index = 3, + .value_type = REFTABLE_LOG_UPDATE, + .value.update = { + .new_hash = hash3, + .name = "jane doe", + .email = "jane@invalid", + .message = "message3", + } + }, + }; + struct reftable_log_record r3[] = { + { + .refname = "a", + .update_index = 2, + .value_type = REFTABLE_LOG_DELETION, + }, + }; + struct reftable_log_record want[] = { + r2[0], + r3[0], + r1[1], + }; + + struct reftable_log_record *logs[] = { r1, r2, r3 }; + int sizes[3] = { 2, 1, 1 }; + struct strbuf bufs[3] = { STRBUF_INIT, STRBUF_INIT, STRBUF_INIT }; + struct reftable_block_source *bs = NULL; + struct reftable_reader **readers = NULL; + struct reftable_merged_table *mt = merged_table_from_log_records( + logs, &bs, &readers, sizes, bufs, 3); + + struct reftable_iterator it = { NULL }; + int err = reftable_merged_table_seek_log(mt, &it, "a"); + struct reftable_log_record *out = NULL; + size_t len = 0; + size_t cap = 0; + int i = 0; + + EXPECT_ERR(err); + EXPECT(reftable_merged_table_hash_id(mt) == GIT_SHA1_FORMAT_ID); + EXPECT(reftable_merged_table_min_update_index(mt) == 1); + + while (len < 100) { /* cap loops/recursion. */ + struct reftable_log_record log = { NULL }; + int err = reftable_iterator_next_log(&it, &log); + if (err > 0) { + break; + } + if (len == cap) { + cap = 2 * cap + 1; + out = reftable_realloc( + out, sizeof(struct reftable_log_record) * cap); + } + out[len++] = log; + } + reftable_iterator_destroy(&it); + + EXPECT(ARRAY_SIZE(want) == len); + for (i = 0; i < len; i++) { + EXPECT(reftable_log_record_equal(&want[i], &out[i], + GIT_SHA1_RAWSZ)); + } + + err = reftable_merged_table_seek_log_at(mt, &it, "a", 2); + EXPECT_ERR(err); + reftable_log_record_release(&out[0]); + err = reftable_iterator_next_log(&it, &out[0]); + EXPECT_ERR(err); + EXPECT(reftable_log_record_equal(&out[0], &r3[0], GIT_SHA1_RAWSZ)); + reftable_iterator_destroy(&it); + + for (i = 0; i < len; i++) { + reftable_log_record_release(&out[i]); + } + reftable_free(out); + + for (i = 0; i < 3; i++) { + strbuf_release(&bufs[i]); + } + readers_destroy(readers, 3); + reftable_merged_table_free(mt); + reftable_free(bs); +} + +static void test_default_write_opts(void) +{ + struct reftable_write_options opts = { 0 }; + struct strbuf buf = STRBUF_INIT; + struct reftable_writer *w = + reftable_new_writer(&strbuf_add_void, &buf, &opts); + + struct reftable_ref_record rec = { + .refname = "master", + .update_index = 1, + }; + int err; + struct reftable_block_source source = { NULL }; + struct reftable_table *tab = reftable_calloc(sizeof(*tab) * 1); + uint32_t hash_id; + struct reftable_reader *rd = NULL; + struct reftable_merged_table *merged = NULL; + + reftable_writer_set_limits(w, 1, 1); + + err = reftable_writer_add_ref(w, &rec); + EXPECT_ERR(err); + + err = reftable_writer_close(w); + EXPECT_ERR(err); + reftable_writer_free(w); + + block_source_from_strbuf(&source, &buf); + + err = reftable_new_reader(&rd, &source, "filename"); + EXPECT_ERR(err); + + hash_id = reftable_reader_hash_id(rd); + EXPECT(hash_id == GIT_SHA1_FORMAT_ID); + + reftable_table_from_reader(&tab[0], rd); + err = reftable_new_merged_table(&merged, tab, 1, GIT_SHA1_FORMAT_ID); + EXPECT_ERR(err); + + reftable_reader_free(rd); + reftable_merged_table_free(merged); + strbuf_release(&buf); +} + +/* XXX test refs_for(oid) */ + +int merged_test_main(int argc, const char *argv[]) +{ + RUN_TEST(test_merged_logs); + RUN_TEST(test_merged_between); + RUN_TEST(test_merged); + RUN_TEST(test_default_write_opts); + return 0; +} diff --git a/reftable/pq.c b/reftable/pq.c new file mode 100644 index 0000000000..efc474017a --- /dev/null +++ b/reftable/pq.c @@ -0,0 +1,105 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "pq.h" + +#include "reftable-record.h" +#include "system.h" +#include "basics.h" + +int pq_less(struct pq_entry *a, struct pq_entry *b) +{ + struct strbuf ak = STRBUF_INIT; + struct strbuf bk = STRBUF_INIT; + int cmp = 0; + reftable_record_key(&a->rec, &ak); + reftable_record_key(&b->rec, &bk); + + cmp = strbuf_cmp(&ak, &bk); + + strbuf_release(&ak); + strbuf_release(&bk); + + if (cmp == 0) + return a->index > b->index; + + return cmp < 0; +} + +struct pq_entry merged_iter_pqueue_top(struct merged_iter_pqueue pq) +{ + return pq.heap[0]; +} + +int merged_iter_pqueue_is_empty(struct merged_iter_pqueue pq) +{ + return pq.len == 0; +} + +struct pq_entry merged_iter_pqueue_remove(struct merged_iter_pqueue *pq) +{ + int i = 0; + struct pq_entry e = pq->heap[0]; + pq->heap[0] = pq->heap[pq->len - 1]; + pq->len--; + + i = 0; + while (i < pq->len) { + int min = i; + int j = 2 * i + 1; + int k = 2 * i + 2; + if (j < pq->len && pq_less(&pq->heap[j], &pq->heap[i])) { + min = j; + } + if (k < pq->len && pq_less(&pq->heap[k], &pq->heap[min])) { + min = k; + } + + if (min == i) { + break; + } + + SWAP(pq->heap[i], pq->heap[min]); + i = min; + } + + return e; +} + +void merged_iter_pqueue_add(struct merged_iter_pqueue *pq, struct pq_entry e) +{ + int i = 0; + if (pq->len == pq->cap) { + pq->cap = 2 * pq->cap + 1; + pq->heap = reftable_realloc(pq->heap, + pq->cap * sizeof(struct pq_entry)); + } + + pq->heap[pq->len++] = e; + i = pq->len - 1; + while (i > 0) { + int j = (i - 1) / 2; + if (pq_less(&pq->heap[j], &pq->heap[i])) { + break; + } + + SWAP(pq->heap[j], pq->heap[i]); + + i = j; + } +} + +void merged_iter_pqueue_release(struct merged_iter_pqueue *pq) +{ + int i = 0; + for (i = 0; i < pq->len; i++) { + reftable_record_destroy(&pq->heap[i].rec); + } + FREE_AND_NULL(pq->heap); + pq->len = pq->cap = 0; +} diff --git a/reftable/pq.h b/reftable/pq.h new file mode 100644 index 0000000000..56fc1b6d87 --- /dev/null +++ b/reftable/pq.h @@ -0,0 +1,33 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef PQ_H +#define PQ_H + +#include "record.h" + +struct pq_entry { + int index; + struct reftable_record rec; +}; + +struct merged_iter_pqueue { + struct pq_entry *heap; + size_t len; + size_t cap; +}; + +struct pq_entry merged_iter_pqueue_top(struct merged_iter_pqueue pq); +int merged_iter_pqueue_is_empty(struct merged_iter_pqueue pq); +void merged_iter_pqueue_check(struct merged_iter_pqueue pq); +struct pq_entry merged_iter_pqueue_remove(struct merged_iter_pqueue *pq); +void merged_iter_pqueue_add(struct merged_iter_pqueue *pq, struct pq_entry e); +void merged_iter_pqueue_release(struct merged_iter_pqueue *pq); +int pq_less(struct pq_entry *a, struct pq_entry *b); + +#endif diff --git a/reftable/pq_test.c b/reftable/pq_test.c new file mode 100644 index 0000000000..c9bb05e37b --- /dev/null +++ b/reftable/pq_test.c @@ -0,0 +1,82 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "system.h" + +#include "basics.h" +#include "constants.h" +#include "pq.h" +#include "record.h" +#include "reftable-tests.h" +#include "test_framework.h" + +void merged_iter_pqueue_check(struct merged_iter_pqueue pq) +{ + int i; + for (i = 1; i < pq.len; i++) { + int parent = (i - 1) / 2; + + EXPECT(pq_less(&pq.heap[parent], &pq.heap[i])); + } +} + +static void test_pq(void) +{ + char *names[54] = { NULL }; + int N = ARRAY_SIZE(names) - 1; + + struct merged_iter_pqueue pq = { NULL }; + const char *last = NULL; + + int i = 0; + for (i = 0; i < N; i++) { + char name[100]; + snprintf(name, sizeof(name), "%02d", i); + names[i] = xstrdup(name); + } + + i = 1; + do { + struct reftable_record rec = + reftable_new_record(BLOCK_TYPE_REF); + struct pq_entry e = { 0 }; + + reftable_record_as_ref(&rec)->refname = names[i]; + e.rec = rec; + merged_iter_pqueue_add(&pq, e); + merged_iter_pqueue_check(pq); + i = (i * 7) % N; + } while (i != 1); + + while (!merged_iter_pqueue_is_empty(pq)) { + struct pq_entry e = merged_iter_pqueue_remove(&pq); + struct reftable_ref_record *ref = + reftable_record_as_ref(&e.rec); + + merged_iter_pqueue_check(pq); + + if (last) { + EXPECT(strcmp(last, ref->refname) < 0); + } + last = ref->refname; + ref->refname = NULL; + reftable_free(ref); + } + + for (i = 0; i < N; i++) { + reftable_free(names[i]); + } + + merged_iter_pqueue_release(&pq); +} + +int pq_test_main(int argc, const char *argv[]) +{ + RUN_TEST(test_pq); + return 0; +} diff --git a/reftable/publicbasics.c b/reftable/publicbasics.c new file mode 100644 index 0000000000..0ad7d5c0ff --- /dev/null +++ b/reftable/publicbasics.c @@ -0,0 +1,65 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "reftable-malloc.h" + +#include "basics.h" +#include "system.h" + +static void *(*reftable_malloc_ptr)(size_t sz); +static void *(*reftable_realloc_ptr)(void *, size_t); +static void (*reftable_free_ptr)(void *); + +void *reftable_malloc(size_t sz) +{ + if (reftable_malloc_ptr) + return (*reftable_malloc_ptr)(sz); + return malloc(sz); +} + +void *reftable_realloc(void *p, size_t sz) +{ + if (reftable_realloc_ptr) + return (*reftable_realloc_ptr)(p, sz); + return realloc(p, sz); +} + +void reftable_free(void *p) +{ + if (reftable_free_ptr) + reftable_free_ptr(p); + else + free(p); +} + +void *reftable_calloc(size_t sz) +{ + void *p = reftable_malloc(sz); + memset(p, 0, sz); + return p; +} + +void reftable_set_alloc(void *(*malloc)(size_t), + void *(*realloc)(void *, size_t), void (*free)(void *)) +{ + reftable_malloc_ptr = malloc; + reftable_realloc_ptr = realloc; + reftable_free_ptr = free; +} + +int hash_size(uint32_t id) +{ + switch (id) { + case 0: + case GIT_SHA1_FORMAT_ID: + return GIT_SHA1_RAWSZ; + case GIT_SHA256_FORMAT_ID: + return GIT_SHA256_RAWSZ; + } + abort(); +} diff --git a/reftable/reader.c b/reftable/reader.c new file mode 100644 index 0000000000..006709a645 --- /dev/null +++ b/reftable/reader.c @@ -0,0 +1,801 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "reader.h" + +#include "system.h" +#include "block.h" +#include "constants.h" +#include "generic.h" +#include "iter.h" +#include "record.h" +#include "reftable-error.h" +#include "reftable-generic.h" +#include "tree.h" + +uint64_t block_source_size(struct reftable_block_source *source) +{ + return source->ops->size(source->arg); +} + +int block_source_read_block(struct reftable_block_source *source, + struct reftable_block *dest, uint64_t off, + uint32_t size) +{ + int result = source->ops->read_block(source->arg, dest, off, size); + dest->source = *source; + return result; +} + +void block_source_close(struct reftable_block_source *source) +{ + if (!source->ops) { + return; + } + + source->ops->close(source->arg); + source->ops = NULL; +} + +static struct reftable_reader_offsets * +reader_offsets_for(struct reftable_reader *r, uint8_t typ) +{ + switch (typ) { + case BLOCK_TYPE_REF: + return &r->ref_offsets; + case BLOCK_TYPE_LOG: + return &r->log_offsets; + case BLOCK_TYPE_OBJ: + return &r->obj_offsets; + } + abort(); +} + +static int reader_get_block(struct reftable_reader *r, + struct reftable_block *dest, uint64_t off, + uint32_t sz) +{ + if (off >= r->size) + return 0; + + if (off + sz > r->size) { + sz = r->size - off; + } + + return block_source_read_block(&r->source, dest, off, sz); +} + +uint32_t reftable_reader_hash_id(struct reftable_reader *r) +{ + return r->hash_id; +} + +const char *reader_name(struct reftable_reader *r) +{ + return r->name; +} + +static int parse_footer(struct reftable_reader *r, uint8_t *footer, + uint8_t *header) +{ + uint8_t *f = footer; + uint8_t first_block_typ; + int err = 0; + uint32_t computed_crc; + uint32_t file_crc; + + if (memcmp(f, "REFT", 4)) { + err = REFTABLE_FORMAT_ERROR; + goto done; + } + f += 4; + + if (memcmp(footer, header, header_size(r->version))) { + err = REFTABLE_FORMAT_ERROR; + goto done; + } + + f++; + r->block_size = get_be24(f); + + f += 3; + r->min_update_index = get_be64(f); + f += 8; + r->max_update_index = get_be64(f); + f += 8; + + if (r->version == 1) { + r->hash_id = GIT_SHA1_FORMAT_ID; + } else { + r->hash_id = get_be32(f); + switch (r->hash_id) { + case GIT_SHA1_FORMAT_ID: + break; + case GIT_SHA256_FORMAT_ID: + break; + default: + err = REFTABLE_FORMAT_ERROR; + goto done; + } + f += 4; + } + + r->ref_offsets.index_offset = get_be64(f); + f += 8; + + r->obj_offsets.offset = get_be64(f); + f += 8; + + r->object_id_len = r->obj_offsets.offset & ((1 << 5) - 1); + r->obj_offsets.offset >>= 5; + + r->obj_offsets.index_offset = get_be64(f); + f += 8; + r->log_offsets.offset = get_be64(f); + f += 8; + r->log_offsets.index_offset = get_be64(f); + f += 8; + + computed_crc = crc32(0, footer, f - footer); + file_crc = get_be32(f); + f += 4; + if (computed_crc != file_crc) { + err = REFTABLE_FORMAT_ERROR; + goto done; + } + + first_block_typ = header[header_size(r->version)]; + r->ref_offsets.is_present = (first_block_typ == BLOCK_TYPE_REF); + r->ref_offsets.offset = 0; + r->log_offsets.is_present = (first_block_typ == BLOCK_TYPE_LOG || + r->log_offsets.offset > 0); + r->obj_offsets.is_present = r->obj_offsets.offset > 0; + err = 0; +done: + return err; +} + +int init_reader(struct reftable_reader *r, struct reftable_block_source *source, + const char *name) +{ + struct reftable_block footer = { NULL }; + struct reftable_block header = { NULL }; + int err = 0; + uint64_t file_size = block_source_size(source); + + /* Need +1 to read type of first block. */ + uint32_t read_size = header_size(2) + 1; /* read v2 because it's larger. */ + memset(r, 0, sizeof(struct reftable_reader)); + + if (read_size > file_size) { + err = REFTABLE_FORMAT_ERROR; + goto done; + } + + err = block_source_read_block(source, &header, 0, read_size); + if (err != read_size) { + err = REFTABLE_IO_ERROR; + goto done; + } + + if (memcmp(header.data, "REFT", 4)) { + err = REFTABLE_FORMAT_ERROR; + goto done; + } + r->version = header.data[4]; + if (r->version != 1 && r->version != 2) { + err = REFTABLE_FORMAT_ERROR; + goto done; + } + + r->size = file_size - footer_size(r->version); + r->source = *source; + r->name = xstrdup(name); + r->hash_id = 0; + + err = block_source_read_block(source, &footer, r->size, + footer_size(r->version)); + if (err != footer_size(r->version)) { + err = REFTABLE_IO_ERROR; + goto done; + } + + err = parse_footer(r, footer.data, header.data); +done: + reftable_block_done(&footer); + reftable_block_done(&header); + return err; +} + +struct table_iter { + struct reftable_reader *r; + uint8_t typ; + uint64_t block_off; + struct block_iter bi; + int is_finished; +}; +#define TABLE_ITER_INIT \ + { \ + .bi = {.last_key = STRBUF_INIT } \ + } + +static void table_iter_copy_from(struct table_iter *dest, + struct table_iter *src) +{ + dest->r = src->r; + dest->typ = src->typ; + dest->block_off = src->block_off; + dest->is_finished = src->is_finished; + block_iter_copy_from(&dest->bi, &src->bi); +} + +static int table_iter_next_in_block(struct table_iter *ti, + struct reftable_record *rec) +{ + int res = block_iter_next(&ti->bi, rec); + if (res == 0 && reftable_record_type(rec) == BLOCK_TYPE_REF) { + ((struct reftable_ref_record *)rec->data)->update_index += + ti->r->min_update_index; + } + + return res; +} + +static void table_iter_block_done(struct table_iter *ti) +{ + if (!ti->bi.br) { + return; + } + reftable_block_done(&ti->bi.br->block); + FREE_AND_NULL(ti->bi.br); + + ti->bi.last_key.len = 0; + ti->bi.next_off = 0; +} + +static int32_t extract_block_size(uint8_t *data, uint8_t *typ, uint64_t off, + int version) +{ + int32_t result = 0; + + if (off == 0) { + data += header_size(version); + } + + *typ = data[0]; + if (reftable_is_block_type(*typ)) { + result = get_be24(data + 1); + } + return result; +} + +int reader_init_block_reader(struct reftable_reader *r, struct block_reader *br, + uint64_t next_off, uint8_t want_typ) +{ + int32_t guess_block_size = r->block_size ? r->block_size : + DEFAULT_BLOCK_SIZE; + struct reftable_block block = { NULL }; + uint8_t block_typ = 0; + int err = 0; + uint32_t header_off = next_off ? 0 : header_size(r->version); + int32_t block_size = 0; + + if (next_off >= r->size) + return 1; + + err = reader_get_block(r, &block, next_off, guess_block_size); + if (err < 0) + return err; + + block_size = extract_block_size(block.data, &block_typ, next_off, + r->version); + if (block_size < 0) + return block_size; + + if (want_typ != BLOCK_TYPE_ANY && block_typ != want_typ) { + reftable_block_done(&block); + return 1; + } + + if (block_size > guess_block_size) { + reftable_block_done(&block); + err = reader_get_block(r, &block, next_off, block_size); + if (err < 0) { + return err; + } + } + + return block_reader_init(br, &block, header_off, r->block_size, + hash_size(r->hash_id)); +} + +static int table_iter_next_block(struct table_iter *dest, + struct table_iter *src) +{ + uint64_t next_block_off = src->block_off + src->bi.br->full_block_size; + struct block_reader br = { 0 }; + int err = 0; + + dest->r = src->r; + dest->typ = src->typ; + dest->block_off = next_block_off; + + err = reader_init_block_reader(src->r, &br, next_block_off, src->typ); + if (err > 0) { + dest->is_finished = 1; + return 1; + } + if (err != 0) + return err; + else { + struct block_reader *brp = + reftable_malloc(sizeof(struct block_reader)); + *brp = br; + + dest->is_finished = 0; + block_reader_start(brp, &dest->bi); + } + return 0; +} + +static int table_iter_next(struct table_iter *ti, struct reftable_record *rec) +{ + if (reftable_record_type(rec) != ti->typ) + return REFTABLE_API_ERROR; + + while (1) { + struct table_iter next = TABLE_ITER_INIT; + int err = 0; + if (ti->is_finished) { + return 1; + } + + err = table_iter_next_in_block(ti, rec); + if (err <= 0) { + return err; + } + + err = table_iter_next_block(&next, ti); + if (err != 0) { + ti->is_finished = 1; + } + table_iter_block_done(ti); + if (err != 0) { + return err; + } + table_iter_copy_from(ti, &next); + block_iter_close(&next.bi); + } +} + +static int table_iter_next_void(void *ti, struct reftable_record *rec) +{ + return table_iter_next(ti, rec); +} + +static void table_iter_close(void *p) +{ + struct table_iter *ti = p; + table_iter_block_done(ti); + block_iter_close(&ti->bi); +} + +static struct reftable_iterator_vtable table_iter_vtable = { + .next = &table_iter_next_void, + .close = &table_iter_close, +}; + +static void iterator_from_table_iter(struct reftable_iterator *it, + struct table_iter *ti) +{ + assert(!it->ops); + it->iter_arg = ti; + it->ops = &table_iter_vtable; +} + +static int reader_table_iter_at(struct reftable_reader *r, + struct table_iter *ti, uint64_t off, + uint8_t typ) +{ + struct block_reader br = { 0 }; + struct block_reader *brp = NULL; + + int err = reader_init_block_reader(r, &br, off, typ); + if (err != 0) + return err; + + brp = reftable_malloc(sizeof(struct block_reader)); + *brp = br; + ti->r = r; + ti->typ = block_reader_type(brp); + ti->block_off = off; + block_reader_start(brp, &ti->bi); + return 0; +} + +static int reader_start(struct reftable_reader *r, struct table_iter *ti, + uint8_t typ, int index) +{ + struct reftable_reader_offsets *offs = reader_offsets_for(r, typ); + uint64_t off = offs->offset; + if (index) { + off = offs->index_offset; + if (off == 0) { + return 1; + } + typ = BLOCK_TYPE_INDEX; + } + + return reader_table_iter_at(r, ti, off, typ); +} + +static int reader_seek_linear(struct reftable_reader *r, struct table_iter *ti, + struct reftable_record *want) +{ + struct reftable_record rec = + reftable_new_record(reftable_record_type(want)); + struct strbuf want_key = STRBUF_INIT; + struct strbuf got_key = STRBUF_INIT; + struct table_iter next = TABLE_ITER_INIT; + int err = -1; + + reftable_record_key(want, &want_key); + + while (1) { + err = table_iter_next_block(&next, ti); + if (err < 0) + goto done; + + if (err > 0) { + break; + } + + err = block_reader_first_key(next.bi.br, &got_key); + if (err < 0) + goto done; + + if (strbuf_cmp(&got_key, &want_key) > 0) { + table_iter_block_done(&next); + break; + } + + table_iter_block_done(ti); + table_iter_copy_from(ti, &next); + } + + err = block_iter_seek(&ti->bi, &want_key); + if (err < 0) + goto done; + err = 0; + +done: + block_iter_close(&next.bi); + reftable_record_destroy(&rec); + strbuf_release(&want_key); + strbuf_release(&got_key); + return err; +} + +static int reader_seek_indexed(struct reftable_reader *r, + struct reftable_iterator *it, + struct reftable_record *rec) +{ + struct reftable_index_record want_index = { .last_key = STRBUF_INIT }; + struct reftable_record want_index_rec = { NULL }; + struct reftable_index_record index_result = { .last_key = STRBUF_INIT }; + struct reftable_record index_result_rec = { NULL }; + struct table_iter index_iter = TABLE_ITER_INIT; + struct table_iter next = TABLE_ITER_INIT; + int err = 0; + + reftable_record_key(rec, &want_index.last_key); + reftable_record_from_index(&want_index_rec, &want_index); + reftable_record_from_index(&index_result_rec, &index_result); + + err = reader_start(r, &index_iter, reftable_record_type(rec), 1); + if (err < 0) + goto done; + + err = reader_seek_linear(r, &index_iter, &want_index_rec); + while (1) { + err = table_iter_next(&index_iter, &index_result_rec); + table_iter_block_done(&index_iter); + if (err != 0) + goto done; + + err = reader_table_iter_at(r, &next, index_result.offset, 0); + if (err != 0) + goto done; + + err = block_iter_seek(&next.bi, &want_index.last_key); + if (err < 0) + goto done; + + if (next.typ == reftable_record_type(rec)) { + err = 0; + break; + } + + if (next.typ != BLOCK_TYPE_INDEX) { + err = REFTABLE_FORMAT_ERROR; + break; + } + + table_iter_copy_from(&index_iter, &next); + } + + if (err == 0) { + struct table_iter empty = TABLE_ITER_INIT; + struct table_iter *malloced = + reftable_calloc(sizeof(struct table_iter)); + *malloced = empty; + table_iter_copy_from(malloced, &next); + iterator_from_table_iter(it, malloced); + } +done: + block_iter_close(&next.bi); + table_iter_close(&index_iter); + reftable_record_release(&want_index_rec); + reftable_record_release(&index_result_rec); + return err; +} + +static int reader_seek_internal(struct reftable_reader *r, + struct reftable_iterator *it, + struct reftable_record *rec) +{ + struct reftable_reader_offsets *offs = + reader_offsets_for(r, reftable_record_type(rec)); + uint64_t idx = offs->index_offset; + struct table_iter ti = TABLE_ITER_INIT; + int err = 0; + if (idx > 0) + return reader_seek_indexed(r, it, rec); + + err = reader_start(r, &ti, reftable_record_type(rec), 0); + if (err < 0) + return err; + err = reader_seek_linear(r, &ti, rec); + if (err < 0) + return err; + else { + struct table_iter *p = + reftable_malloc(sizeof(struct table_iter)); + *p = ti; + iterator_from_table_iter(it, p); + } + + return 0; +} + +static int reader_seek(struct reftable_reader *r, struct reftable_iterator *it, + struct reftable_record *rec) +{ + uint8_t typ = reftable_record_type(rec); + + struct reftable_reader_offsets *offs = reader_offsets_for(r, typ); + if (!offs->is_present) { + iterator_set_empty(it); + return 0; + } + + return reader_seek_internal(r, it, rec); +} + +int reftable_reader_seek_ref(struct reftable_reader *r, + struct reftable_iterator *it, const char *name) +{ + struct reftable_ref_record ref = { + .refname = (char *)name, + }; + struct reftable_record rec = { NULL }; + reftable_record_from_ref(&rec, &ref); + return reader_seek(r, it, &rec); +} + +int reftable_reader_seek_log_at(struct reftable_reader *r, + struct reftable_iterator *it, const char *name, + uint64_t update_index) +{ + struct reftable_log_record log = { + .refname = (char *)name, + .update_index = update_index, + }; + struct reftable_record rec = { NULL }; + reftable_record_from_log(&rec, &log); + return reader_seek(r, it, &rec); +} + +int reftable_reader_seek_log(struct reftable_reader *r, + struct reftable_iterator *it, const char *name) +{ + uint64_t max = ~((uint64_t)0); + return reftable_reader_seek_log_at(r, it, name, max); +} + +void reader_close(struct reftable_reader *r) +{ + block_source_close(&r->source); + FREE_AND_NULL(r->name); +} + +int reftable_new_reader(struct reftable_reader **p, + struct reftable_block_source *src, char const *name) +{ + struct reftable_reader *rd = + reftable_calloc(sizeof(struct reftable_reader)); + int err = init_reader(rd, src, name); + if (err == 0) { + *p = rd; + } else { + block_source_close(src); + reftable_free(rd); + } + return err; +} + +void reftable_reader_free(struct reftable_reader *r) +{ + reader_close(r); + reftable_free(r); +} + +static int reftable_reader_refs_for_indexed(struct reftable_reader *r, + struct reftable_iterator *it, + uint8_t *oid) +{ + struct reftable_obj_record want = { + .hash_prefix = oid, + .hash_prefix_len = r->object_id_len, + }; + struct reftable_record want_rec = { NULL }; + struct reftable_iterator oit = { NULL }; + struct reftable_obj_record got = { NULL }; + struct reftable_record got_rec = { NULL }; + int err = 0; + struct indexed_table_ref_iter *itr = NULL; + + /* Look through the reverse index. */ + reftable_record_from_obj(&want_rec, &want); + err = reader_seek(r, &oit, &want_rec); + if (err != 0) + goto done; + + /* read out the reftable_obj_record */ + reftable_record_from_obj(&got_rec, &got); + err = iterator_next(&oit, &got_rec); + if (err < 0) + goto done; + + if (err > 0 || + memcmp(want.hash_prefix, got.hash_prefix, r->object_id_len)) { + /* didn't find it; return empty iterator */ + iterator_set_empty(it); + err = 0; + goto done; + } + + err = new_indexed_table_ref_iter(&itr, r, oid, hash_size(r->hash_id), + got.offsets, got.offset_len); + if (err < 0) + goto done; + got.offsets = NULL; + iterator_from_indexed_table_ref_iter(it, itr); + +done: + reftable_iterator_destroy(&oit); + reftable_record_release(&got_rec); + return err; +} + +static int reftable_reader_refs_for_unindexed(struct reftable_reader *r, + struct reftable_iterator *it, + uint8_t *oid) +{ + struct table_iter ti_empty = TABLE_ITER_INIT; + struct table_iter *ti = reftable_calloc(sizeof(struct table_iter)); + struct filtering_ref_iterator *filter = NULL; + struct filtering_ref_iterator empty = FILTERING_REF_ITERATOR_INIT; + int oid_len = hash_size(r->hash_id); + int err; + + *ti = ti_empty; + err = reader_start(r, ti, BLOCK_TYPE_REF, 0); + if (err < 0) { + reftable_free(ti); + return err; + } + + filter = reftable_malloc(sizeof(struct filtering_ref_iterator)); + *filter = empty; + + strbuf_add(&filter->oid, oid, oid_len); + reftable_table_from_reader(&filter->tab, r); + filter->double_check = 0; + iterator_from_table_iter(&filter->it, ti); + + iterator_from_filtering_ref_iterator(it, filter); + return 0; +} + +int reftable_reader_refs_for(struct reftable_reader *r, + struct reftable_iterator *it, uint8_t *oid) +{ + if (r->obj_offsets.is_present) + return reftable_reader_refs_for_indexed(r, it, oid); + return reftable_reader_refs_for_unindexed(r, it, oid); +} + +uint64_t reftable_reader_max_update_index(struct reftable_reader *r) +{ + return r->max_update_index; +} + +uint64_t reftable_reader_min_update_index(struct reftable_reader *r) +{ + return r->min_update_index; +} + +/* generic table interface. */ + +static int reftable_reader_seek_void(void *tab, struct reftable_iterator *it, + struct reftable_record *rec) +{ + return reader_seek(tab, it, rec); +} + +static uint32_t reftable_reader_hash_id_void(void *tab) +{ + return reftable_reader_hash_id(tab); +} + +static uint64_t reftable_reader_min_update_index_void(void *tab) +{ + return reftable_reader_min_update_index(tab); +} + +static uint64_t reftable_reader_max_update_index_void(void *tab) +{ + return reftable_reader_max_update_index(tab); +} + +static struct reftable_table_vtable reader_vtable = { + .seek_record = reftable_reader_seek_void, + .hash_id = reftable_reader_hash_id_void, + .min_update_index = reftable_reader_min_update_index_void, + .max_update_index = reftable_reader_max_update_index_void, +}; + +void reftable_table_from_reader(struct reftable_table *tab, + struct reftable_reader *reader) +{ + assert(!tab->ops); + tab->ops = &reader_vtable; + tab->table_arg = reader; +} + + +int reftable_reader_print_file(const char *tablename) +{ + struct reftable_block_source src = { NULL }; + int err = reftable_block_source_from_file(&src, tablename); + struct reftable_reader *r = NULL; + struct reftable_table tab = { NULL }; + if (err < 0) + goto done; + + err = reftable_new_reader(&r, &src, tablename); + if (err < 0) + goto done; + + reftable_table_from_reader(&tab, r); + err = reftable_table_print(&tab); +done: + reftable_reader_free(r); + return err; +} diff --git a/reftable/reader.h b/reftable/reader.h new file mode 100644 index 0000000000..e869165f23 --- /dev/null +++ b/reftable/reader.h @@ -0,0 +1,64 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef READER_H +#define READER_H + +#include "block.h" +#include "record.h" +#include "reftable-iterator.h" +#include "reftable-reader.h" + +uint64_t block_source_size(struct reftable_block_source *source); + +int block_source_read_block(struct reftable_block_source *source, + struct reftable_block *dest, uint64_t off, + uint32_t size); +void block_source_close(struct reftable_block_source *source); + +/* metadata for a block type */ +struct reftable_reader_offsets { + int is_present; + uint64_t offset; + uint64_t index_offset; +}; + +/* The state for reading a reftable file. */ +struct reftable_reader { + /* for convience, associate a name with the instance. */ + char *name; + struct reftable_block_source source; + + /* Size of the file, excluding the footer. */ + uint64_t size; + + /* 'sha1' for SHA1, 's256' for SHA-256 */ + uint32_t hash_id; + + uint32_t block_size; + uint64_t min_update_index; + uint64_t max_update_index; + /* Length of the OID keys in the 'o' section */ + int object_id_len; + int version; + + struct reftable_reader_offsets ref_offsets; + struct reftable_reader_offsets obj_offsets; + struct reftable_reader_offsets log_offsets; +}; + +int init_reader(struct reftable_reader *r, struct reftable_block_source *source, + const char *name); +void reader_close(struct reftable_reader *r); +const char *reader_name(struct reftable_reader *r); + +/* initialize a block reader to read from `r` */ +int reader_init_block_reader(struct reftable_reader *r, struct block_reader *br, + uint64_t next_off, uint8_t want_typ); + +#endif diff --git a/reftable/readwrite_test.c b/reftable/readwrite_test.c new file mode 100644 index 0000000000..5f6bcc2f77 --- /dev/null +++ b/reftable/readwrite_test.c @@ -0,0 +1,652 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "system.h" + +#include "basics.h" +#include "block.h" +#include "blocksource.h" +#include "constants.h" +#include "reader.h" +#include "record.h" +#include "test_framework.h" +#include "reftable-tests.h" +#include "reftable-writer.h" + +static const int update_index = 5; + +static void test_buffer(void) +{ + struct strbuf buf = STRBUF_INIT; + struct reftable_block_source source = { NULL }; + struct reftable_block out = { NULL }; + int n; + uint8_t in[] = "hello"; + strbuf_add(&buf, in, sizeof(in)); + block_source_from_strbuf(&source, &buf); + EXPECT(block_source_size(&source) == 6); + n = block_source_read_block(&source, &out, 0, sizeof(in)); + EXPECT(n == sizeof(in)); + EXPECT(!memcmp(in, out.data, n)); + reftable_block_done(&out); + + n = block_source_read_block(&source, &out, 1, 2); + EXPECT(n == 2); + EXPECT(!memcmp(out.data, "el", 2)); + + reftable_block_done(&out); + block_source_close(&source); + strbuf_release(&buf); +} + +static void write_table(char ***names, struct strbuf *buf, int N, + int block_size, uint32_t hash_id) +{ + struct reftable_write_options opts = { + .block_size = block_size, + .hash_id = hash_id, + }; + struct reftable_writer *w = + reftable_new_writer(&strbuf_add_void, buf, &opts); + struct reftable_ref_record ref = { NULL }; + int i = 0, n; + struct reftable_log_record log = { NULL }; + const struct reftable_stats *stats = NULL; + *names = reftable_calloc(sizeof(char *) * (N + 1)); + reftable_writer_set_limits(w, update_index, update_index); + for (i = 0; i < N; i++) { + uint8_t hash[GIT_SHA256_RAWSZ] = { 0 }; + char name[100]; + int n; + + set_test_hash(hash, i); + + snprintf(name, sizeof(name), "refs/heads/branch%02d", i); + + ref.refname = name; + ref.update_index = update_index; + ref.value_type = REFTABLE_REF_VAL1; + ref.value.val1 = hash; + (*names)[i] = xstrdup(name); + + n = reftable_writer_add_ref(w, &ref); + EXPECT(n == 0); + } + + for (i = 0; i < N; i++) { + uint8_t hash[GIT_SHA256_RAWSZ] = { 0 }; + char name[100]; + int n; + + set_test_hash(hash, i); + + snprintf(name, sizeof(name), "refs/heads/branch%02d", i); + + log.refname = name; + log.update_index = update_index; + log.value_type = REFTABLE_LOG_UPDATE; + log.value.update.new_hash = hash; + log.value.update.message = "message"; + + n = reftable_writer_add_log(w, &log); + EXPECT(n == 0); + } + + n = reftable_writer_close(w); + EXPECT(n == 0); + + stats = writer_stats(w); + for (i = 0; i < stats->ref_stats.blocks; i++) { + int off = i * opts.block_size; + if (off == 0) { + off = header_size( + (hash_id == GIT_SHA256_FORMAT_ID) ? 2 : 1); + } + EXPECT(buf->buf[off] == 'r'); + } + + EXPECT(stats->log_stats.blocks > 0); + reftable_writer_free(w); +} + +static void test_log_buffer_size(void) +{ + struct strbuf buf = STRBUF_INIT; + struct reftable_write_options opts = { + .block_size = 4096, + }; + int err; + int i; + struct reftable_log_record + log = { .refname = "refs/heads/master", + .update_index = 0xa, + .value_type = REFTABLE_LOG_UPDATE, + .value = { .update = { + .name = "Han-Wen Nienhuys", + .email = "hanwen@google.com", + .tz_offset = 100, + .time = 0x5e430672, + .message = "commit: 9\n", + } } }; + struct reftable_writer *w = + reftable_new_writer(&strbuf_add_void, &buf, &opts); + + /* This tests buffer extension for log compression. Must use a random + hash, to ensure that the compressed part is larger than the original. + */ + uint8_t hash1[GIT_SHA1_RAWSZ], hash2[GIT_SHA1_RAWSZ]; + for (i = 0; i < GIT_SHA1_RAWSZ; i++) { + hash1[i] = (uint8_t)(rand() % 256); + hash2[i] = (uint8_t)(rand() % 256); + } + log.value.update.old_hash = hash1; + log.value.update.new_hash = hash2; + reftable_writer_set_limits(w, update_index, update_index); + err = reftable_writer_add_log(w, &log); + EXPECT_ERR(err); + err = reftable_writer_close(w); + EXPECT_ERR(err); + reftable_writer_free(w); + strbuf_release(&buf); +} + +static void test_log_write_read(void) +{ + int N = 2; + char **names = reftable_calloc(sizeof(char *) * (N + 1)); + int err; + struct reftable_write_options opts = { + .block_size = 256, + }; + struct reftable_ref_record ref = { NULL }; + int i = 0; + struct reftable_log_record log = { NULL }; + int n; + struct reftable_iterator it = { NULL }; + struct reftable_reader rd = { NULL }; + struct reftable_block_source source = { NULL }; + struct strbuf buf = STRBUF_INIT; + struct reftable_writer *w = + reftable_new_writer(&strbuf_add_void, &buf, &opts); + const struct reftable_stats *stats = NULL; + reftable_writer_set_limits(w, 0, N); + for (i = 0; i < N; i++) { + char name[256]; + struct reftable_ref_record ref = { NULL }; + snprintf(name, sizeof(name), "b%02d%0*d", i, 130, 7); + names[i] = xstrdup(name); + ref.refname = name; + ref.update_index = i; + + err = reftable_writer_add_ref(w, &ref); + EXPECT_ERR(err); + } + for (i = 0; i < N; i++) { + uint8_t hash1[GIT_SHA1_RAWSZ], hash2[GIT_SHA1_RAWSZ]; + struct reftable_log_record log = { NULL }; + set_test_hash(hash1, i); + set_test_hash(hash2, i + 1); + + log.refname = names[i]; + log.update_index = i; + log.value_type = REFTABLE_LOG_UPDATE; + log.value.update.old_hash = hash1; + log.value.update.new_hash = hash2; + + err = reftable_writer_add_log(w, &log); + EXPECT_ERR(err); + } + + n = reftable_writer_close(w); + EXPECT(n == 0); + + stats = writer_stats(w); + EXPECT(stats->log_stats.blocks > 0); + reftable_writer_free(w); + w = NULL; + + block_source_from_strbuf(&source, &buf); + + err = init_reader(&rd, &source, "file.log"); + EXPECT_ERR(err); + + err = reftable_reader_seek_ref(&rd, &it, names[N - 1]); + EXPECT_ERR(err); + + err = reftable_iterator_next_ref(&it, &ref); + EXPECT_ERR(err); + + /* end of iteration. */ + err = reftable_iterator_next_ref(&it, &ref); + EXPECT(0 < err); + + reftable_iterator_destroy(&it); + reftable_ref_record_release(&ref); + + err = reftable_reader_seek_log(&rd, &it, ""); + EXPECT_ERR(err); + + i = 0; + while (1) { + int err = reftable_iterator_next_log(&it, &log); + if (err > 0) { + break; + } + + EXPECT_ERR(err); + EXPECT_STREQ(names[i], log.refname); + EXPECT(i == log.update_index); + i++; + reftable_log_record_release(&log); + } + + EXPECT(i == N); + reftable_iterator_destroy(&it); + + /* cleanup. */ + strbuf_release(&buf); + free_names(names); + reader_close(&rd); +} + +static void test_table_read_write_sequential(void) +{ + char **names; + struct strbuf buf = STRBUF_INIT; + int N = 50; + struct reftable_iterator it = { NULL }; + struct reftable_block_source source = { NULL }; + struct reftable_reader rd = { NULL }; + int err = 0; + int j = 0; + + write_table(&names, &buf, N, 256, GIT_SHA1_FORMAT_ID); + + block_source_from_strbuf(&source, &buf); + + err = init_reader(&rd, &source, "file.ref"); + EXPECT_ERR(err); + + err = reftable_reader_seek_ref(&rd, &it, ""); + EXPECT_ERR(err); + + while (1) { + struct reftable_ref_record ref = { NULL }; + int r = reftable_iterator_next_ref(&it, &ref); + EXPECT(r >= 0); + if (r > 0) { + break; + } + EXPECT(0 == strcmp(names[j], ref.refname)); + EXPECT(update_index == ref.update_index); + + j++; + reftable_ref_record_release(&ref); + } + EXPECT(j == N); + reftable_iterator_destroy(&it); + strbuf_release(&buf); + free_names(names); + + reader_close(&rd); +} + +static void test_table_write_small_table(void) +{ + char **names; + struct strbuf buf = STRBUF_INIT; + int N = 1; + write_table(&names, &buf, N, 4096, GIT_SHA1_FORMAT_ID); + EXPECT(buf.len < 200); + strbuf_release(&buf); + free_names(names); +} + +static void test_table_read_api(void) +{ + char **names; + struct strbuf buf = STRBUF_INIT; + int N = 50; + struct reftable_reader rd = { NULL }; + struct reftable_block_source source = { NULL }; + int err; + int i; + struct reftable_log_record log = { NULL }; + struct reftable_iterator it = { NULL }; + + write_table(&names, &buf, N, 256, GIT_SHA1_FORMAT_ID); + + block_source_from_strbuf(&source, &buf); + + err = init_reader(&rd, &source, "file.ref"); + EXPECT_ERR(err); + + err = reftable_reader_seek_ref(&rd, &it, names[0]); + EXPECT_ERR(err); + + err = reftable_iterator_next_log(&it, &log); + EXPECT(err == REFTABLE_API_ERROR); + + strbuf_release(&buf); + for (i = 0; i < N; i++) { + reftable_free(names[i]); + } + reftable_iterator_destroy(&it); + reftable_free(names); + reader_close(&rd); + strbuf_release(&buf); +} + +static void test_table_read_write_seek(int index, int hash_id) +{ + char **names; + struct strbuf buf = STRBUF_INIT; + int N = 50; + struct reftable_reader rd = { NULL }; + struct reftable_block_source source = { NULL }; + int err; + int i = 0; + + struct reftable_iterator it = { NULL }; + struct strbuf pastLast = STRBUF_INIT; + struct reftable_ref_record ref = { NULL }; + + write_table(&names, &buf, N, 256, hash_id); + + block_source_from_strbuf(&source, &buf); + + err = init_reader(&rd, &source, "file.ref"); + EXPECT_ERR(err); + EXPECT(hash_id == reftable_reader_hash_id(&rd)); + + if (!index) { + rd.ref_offsets.index_offset = 0; + } else { + EXPECT(rd.ref_offsets.index_offset > 0); + } + + for (i = 1; i < N; i++) { + int err = reftable_reader_seek_ref(&rd, &it, names[i]); + EXPECT_ERR(err); + err = reftable_iterator_next_ref(&it, &ref); + EXPECT_ERR(err); + EXPECT(0 == strcmp(names[i], ref.refname)); + EXPECT(REFTABLE_REF_VAL1 == ref.value_type); + EXPECT(i == ref.value.val1[0]); + + reftable_ref_record_release(&ref); + reftable_iterator_destroy(&it); + } + + strbuf_addstr(&pastLast, names[N - 1]); + strbuf_addstr(&pastLast, "/"); + + err = reftable_reader_seek_ref(&rd, &it, pastLast.buf); + if (err == 0) { + struct reftable_ref_record ref = { NULL }; + int err = reftable_iterator_next_ref(&it, &ref); + EXPECT(err > 0); + } else { + EXPECT(err > 0); + } + + strbuf_release(&pastLast); + reftable_iterator_destroy(&it); + + strbuf_release(&buf); + for (i = 0; i < N; i++) { + reftable_free(names[i]); + } + reftable_free(names); + reader_close(&rd); +} + +static void test_table_read_write_seek_linear(void) +{ + test_table_read_write_seek(0, GIT_SHA1_FORMAT_ID); +} + +static void test_table_read_write_seek_linear_sha256(void) +{ + test_table_read_write_seek(0, GIT_SHA256_FORMAT_ID); +} + +static void test_table_read_write_seek_index(void) +{ + test_table_read_write_seek(1, GIT_SHA1_FORMAT_ID); +} + +static void test_table_refs_for(int indexed) +{ + int N = 50; + char **want_names = reftable_calloc(sizeof(char *) * (N + 1)); + int want_names_len = 0; + uint8_t want_hash[GIT_SHA1_RAWSZ]; + + struct reftable_write_options opts = { + .block_size = 256, + }; + struct reftable_ref_record ref = { NULL }; + int i = 0; + int n; + int err; + struct reftable_reader rd; + struct reftable_block_source source = { NULL }; + + struct strbuf buf = STRBUF_INIT; + struct reftable_writer *w = + reftable_new_writer(&strbuf_add_void, &buf, &opts); + + struct reftable_iterator it = { NULL }; + int j; + + set_test_hash(want_hash, 4); + + for (i = 0; i < N; i++) { + uint8_t hash[GIT_SHA1_RAWSZ]; + char fill[51] = { 0 }; + char name[100]; + uint8_t hash1[GIT_SHA1_RAWSZ]; + uint8_t hash2[GIT_SHA1_RAWSZ]; + struct reftable_ref_record ref = { NULL }; + + memset(hash, i, sizeof(hash)); + memset(fill, 'x', 50); + /* Put the variable part in the start */ + snprintf(name, sizeof(name), "br%02d%s", i, fill); + name[40] = 0; + ref.refname = name; + + set_test_hash(hash1, i / 4); + set_test_hash(hash2, 3 + i / 4); + ref.value_type = REFTABLE_REF_VAL2; + ref.value.val2.value = hash1; + ref.value.val2.target_value = hash2; + + /* 80 bytes / entry, so 3 entries per block. Yields 17 + */ + /* blocks. */ + n = reftable_writer_add_ref(w, &ref); + EXPECT(n == 0); + + if (!memcmp(hash1, want_hash, GIT_SHA1_RAWSZ) || + !memcmp(hash2, want_hash, GIT_SHA1_RAWSZ)) { + want_names[want_names_len++] = xstrdup(name); + } + } + + n = reftable_writer_close(w); + EXPECT(n == 0); + + reftable_writer_free(w); + w = NULL; + + block_source_from_strbuf(&source, &buf); + + err = init_reader(&rd, &source, "file.ref"); + EXPECT_ERR(err); + if (!indexed) { + rd.obj_offsets.is_present = 0; + } + + err = reftable_reader_seek_ref(&rd, &it, ""); + EXPECT_ERR(err); + reftable_iterator_destroy(&it); + + err = reftable_reader_refs_for(&rd, &it, want_hash); + EXPECT_ERR(err); + + j = 0; + while (1) { + int err = reftable_iterator_next_ref(&it, &ref); + EXPECT(err >= 0); + if (err > 0) { + break; + } + + EXPECT(j < want_names_len); + EXPECT(0 == strcmp(ref.refname, want_names[j])); + j++; + reftable_ref_record_release(&ref); + } + EXPECT(j == want_names_len); + + strbuf_release(&buf); + free_names(want_names); + reftable_iterator_destroy(&it); + reader_close(&rd); +} + +static void test_table_refs_for_no_index(void) +{ + test_table_refs_for(0); +} + +static void test_table_refs_for_obj_index(void) +{ + test_table_refs_for(1); +} + +static void test_write_empty_table(void) +{ + struct reftable_write_options opts = { 0 }; + struct strbuf buf = STRBUF_INIT; + struct reftable_writer *w = + reftable_new_writer(&strbuf_add_void, &buf, &opts); + struct reftable_block_source source = { NULL }; + struct reftable_reader *rd = NULL; + struct reftable_ref_record rec = { NULL }; + struct reftable_iterator it = { NULL }; + int err; + + reftable_writer_set_limits(w, 1, 1); + + err = reftable_writer_close(w); + EXPECT(err == REFTABLE_EMPTY_TABLE_ERROR); + reftable_writer_free(w); + + EXPECT(buf.len == header_size(1) + footer_size(1)); + + block_source_from_strbuf(&source, &buf); + + err = reftable_new_reader(&rd, &source, "filename"); + EXPECT_ERR(err); + + err = reftable_reader_seek_ref(rd, &it, ""); + EXPECT_ERR(err); + + err = reftable_iterator_next_ref(&it, &rec); + EXPECT(err > 0); + + reftable_iterator_destroy(&it); + reftable_reader_free(rd); + strbuf_release(&buf); +} + +static void test_write_key_order(void) +{ + struct reftable_write_options opts = { 0 }; + struct strbuf buf = STRBUF_INIT; + struct reftable_writer *w = + reftable_new_writer(&strbuf_add_void, &buf, &opts); + struct reftable_ref_record refs[2] = { + { + .refname = "b", + .update_index = 1, + .value_type = REFTABLE_REF_SYMREF, + .value = { + .symref = "target", + }, + }, { + .refname = "a", + .update_index = 1, + .value_type = REFTABLE_REF_SYMREF, + .value = { + .symref = "target", + }, + } + }; + int err; + + reftable_writer_set_limits(w, 1, 1); + err = reftable_writer_add_ref(w, &refs[0]); + EXPECT_ERR(err); + err = reftable_writer_add_ref(w, &refs[1]); + printf("%d\n", err); + EXPECT(err == REFTABLE_API_ERROR); + reftable_writer_close(w); + reftable_writer_free(w); + strbuf_release(&buf); +} + +static void test_corrupt_table_empty(void) +{ + struct strbuf buf = STRBUF_INIT; + struct reftable_block_source source = { NULL }; + struct reftable_reader rd = { NULL }; + int err; + + block_source_from_strbuf(&source, &buf); + err = init_reader(&rd, &source, "file.log"); + EXPECT(err == REFTABLE_FORMAT_ERROR); +} + +static void test_corrupt_table(void) +{ + uint8_t zeros[1024] = { 0 }; + struct strbuf buf = STRBUF_INIT; + struct reftable_block_source source = { NULL }; + struct reftable_reader rd = { NULL }; + int err; + strbuf_add(&buf, zeros, sizeof(zeros)); + + block_source_from_strbuf(&source, &buf); + err = init_reader(&rd, &source, "file.log"); + EXPECT(err == REFTABLE_FORMAT_ERROR); + strbuf_release(&buf); +} + +int readwrite_test_main(int argc, const char *argv[]) +{ + RUN_TEST(test_corrupt_table); + RUN_TEST(test_corrupt_table_empty); + RUN_TEST(test_log_write_read); + RUN_TEST(test_write_key_order); + RUN_TEST(test_table_read_write_seek_linear_sha256); + RUN_TEST(test_log_buffer_size); + RUN_TEST(test_table_write_small_table); + RUN_TEST(test_buffer); + RUN_TEST(test_table_read_api); + RUN_TEST(test_table_read_write_sequential); + RUN_TEST(test_table_read_write_seek_linear); + RUN_TEST(test_table_read_write_seek_index); + RUN_TEST(test_table_refs_for_no_index); + RUN_TEST(test_table_refs_for_obj_index); + RUN_TEST(test_write_empty_table); + return 0; +} diff --git a/reftable/record.c b/reftable/record.c new file mode 100644 index 0000000000..6a5dac32dc --- /dev/null +++ b/reftable/record.c @@ -0,0 +1,1212 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +/* record.c - methods for different types of records. */ + +#include "record.h" + +#include "system.h" +#include "constants.h" +#include "reftable-error.h" +#include "basics.h" + +int get_var_int(uint64_t *dest, struct string_view *in) +{ + int ptr = 0; + uint64_t val; + + if (in->len == 0) + return -1; + val = in->buf[ptr] & 0x7f; + + while (in->buf[ptr] & 0x80) { + ptr++; + if (ptr > in->len) { + return -1; + } + val = (val + 1) << 7 | (uint64_t)(in->buf[ptr] & 0x7f); + } + + *dest = val; + return ptr + 1; +} + +int put_var_int(struct string_view *dest, uint64_t val) +{ + uint8_t buf[10] = { 0 }; + int i = 9; + int n = 0; + buf[i] = (uint8_t)(val & 0x7f); + i--; + while (1) { + val >>= 7; + if (!val) { + break; + } + val--; + buf[i] = 0x80 | (uint8_t)(val & 0x7f); + i--; + } + + n = sizeof(buf) - i - 1; + if (dest->len < n) + return -1; + memcpy(dest->buf, &buf[i + 1], n); + return n; +} + +int reftable_is_block_type(uint8_t typ) +{ + switch (typ) { + case BLOCK_TYPE_REF: + case BLOCK_TYPE_LOG: + case BLOCK_TYPE_OBJ: + case BLOCK_TYPE_INDEX: + return 1; + } + return 0; +} + +uint8_t *reftable_ref_record_val1(struct reftable_ref_record *rec) +{ + switch (rec->value_type) { + case REFTABLE_REF_VAL1: + return rec->value.val1; + case REFTABLE_REF_VAL2: + return rec->value.val2.value; + default: + return NULL; + } +} + +uint8_t *reftable_ref_record_val2(struct reftable_ref_record *rec) +{ + switch (rec->value_type) { + case REFTABLE_REF_VAL2: + return rec->value.val2.target_value; + default: + return NULL; + } +} + +static int decode_string(struct strbuf *dest, struct string_view in) +{ + int start_len = in.len; + uint64_t tsize = 0; + int n = get_var_int(&tsize, &in); + if (n <= 0) + return -1; + string_view_consume(&in, n); + if (in.len < tsize) + return -1; + + strbuf_reset(dest); + strbuf_add(dest, in.buf, tsize); + string_view_consume(&in, tsize); + + return start_len - in.len; +} + +static int encode_string(char *str, struct string_view s) +{ + struct string_view start = s; + int l = strlen(str); + int n = put_var_int(&s, l); + if (n < 0) + return -1; + string_view_consume(&s, n); + if (s.len < l) + return -1; + memcpy(s.buf, str, l); + string_view_consume(&s, l); + + return start.len - s.len; +} + +int reftable_encode_key(int *restart, struct string_view dest, + struct strbuf prev_key, struct strbuf key, + uint8_t extra) +{ + struct string_view start = dest; + int prefix_len = common_prefix_size(&prev_key, &key); + uint64_t suffix_len = key.len - prefix_len; + int n = put_var_int(&dest, (uint64_t)prefix_len); + if (n < 0) + return -1; + string_view_consume(&dest, n); + + *restart = (prefix_len == 0); + + n = put_var_int(&dest, suffix_len << 3 | (uint64_t)extra); + if (n < 0) + return -1; + string_view_consume(&dest, n); + + if (dest.len < suffix_len) + return -1; + memcpy(dest.buf, key.buf + prefix_len, suffix_len); + string_view_consume(&dest, suffix_len); + + return start.len - dest.len; +} + +int reftable_decode_key(struct strbuf *key, uint8_t *extra, + struct strbuf last_key, struct string_view in) +{ + int start_len = in.len; + uint64_t prefix_len = 0; + uint64_t suffix_len = 0; + int n = get_var_int(&prefix_len, &in); + if (n < 0) + return -1; + string_view_consume(&in, n); + + if (prefix_len > last_key.len) + return -1; + + n = get_var_int(&suffix_len, &in); + if (n <= 0) + return -1; + string_view_consume(&in, n); + + *extra = (uint8_t)(suffix_len & 0x7); + suffix_len >>= 3; + + if (in.len < suffix_len) + return -1; + + strbuf_reset(key); + strbuf_add(key, last_key.buf, prefix_len); + strbuf_add(key, in.buf, suffix_len); + string_view_consume(&in, suffix_len); + + return start_len - in.len; +} + +static void reftable_ref_record_key(const void *r, struct strbuf *dest) +{ + const struct reftable_ref_record *rec = + (const struct reftable_ref_record *)r; + strbuf_reset(dest); + strbuf_addstr(dest, rec->refname); +} + +static void reftable_ref_record_copy_from(void *rec, const void *src_rec, + int hash_size) +{ + struct reftable_ref_record *ref = rec; + const struct reftable_ref_record *src = src_rec; + assert(hash_size > 0); + + /* This is simple and correct, but we could probably reuse the hash + * fields. */ + reftable_ref_record_release(ref); + if (src->refname) { + ref->refname = xstrdup(src->refname); + } + ref->update_index = src->update_index; + ref->value_type = src->value_type; + switch (src->value_type) { + case REFTABLE_REF_DELETION: + break; + case REFTABLE_REF_VAL1: + ref->value.val1 = reftable_malloc(hash_size); + memcpy(ref->value.val1, src->value.val1, hash_size); + break; + case REFTABLE_REF_VAL2: + ref->value.val2.value = reftable_malloc(hash_size); + memcpy(ref->value.val2.value, src->value.val2.value, hash_size); + ref->value.val2.target_value = reftable_malloc(hash_size); + memcpy(ref->value.val2.target_value, + src->value.val2.target_value, hash_size); + break; + case REFTABLE_REF_SYMREF: + ref->value.symref = xstrdup(src->value.symref); + break; + } +} + +static char hexdigit(int c) +{ + if (c <= 9) + return '0' + c; + return 'a' + (c - 10); +} + +static void hex_format(char *dest, uint8_t *src, int hash_size) +{ + assert(hash_size > 0); + if (src) { + int i = 0; + for (i = 0; i < hash_size; i++) { + dest[2 * i] = hexdigit(src[i] >> 4); + dest[2 * i + 1] = hexdigit(src[i] & 0xf); + } + dest[2 * hash_size] = 0; + } +} + +void reftable_ref_record_print(struct reftable_ref_record *ref, + uint32_t hash_id) +{ + char hex[2 * GIT_SHA256_RAWSZ + 1] = { 0 }; /* BUG */ + printf("ref{%s(%" PRIu64 ") ", ref->refname, ref->update_index); + switch (ref->value_type) { + case REFTABLE_REF_SYMREF: + printf("=> %s", ref->value.symref); + break; + case REFTABLE_REF_VAL2: + hex_format(hex, ref->value.val2.value, hash_size(hash_id)); + printf("val 2 %s", hex); + hex_format(hex, ref->value.val2.target_value, + hash_size(hash_id)); + printf("(T %s)", hex); + break; + case REFTABLE_REF_VAL1: + hex_format(hex, ref->value.val1, hash_size(hash_id)); + printf("val 1 %s", hex); + break; + case REFTABLE_REF_DELETION: + printf("delete"); + break; + } + printf("}\n"); +} + +static void reftable_ref_record_release_void(void *rec) +{ + reftable_ref_record_release(rec); +} + +void reftable_ref_record_release(struct reftable_ref_record *ref) +{ + switch (ref->value_type) { + case REFTABLE_REF_SYMREF: + reftable_free(ref->value.symref); + break; + case REFTABLE_REF_VAL2: + reftable_free(ref->value.val2.target_value); + reftable_free(ref->value.val2.value); + break; + case REFTABLE_REF_VAL1: + reftable_free(ref->value.val1); + break; + case REFTABLE_REF_DELETION: + break; + default: + abort(); + } + + reftable_free(ref->refname); + memset(ref, 0, sizeof(struct reftable_ref_record)); +} + +static uint8_t reftable_ref_record_val_type(const void *rec) +{ + const struct reftable_ref_record *r = + (const struct reftable_ref_record *)rec; + return r->value_type; +} + +static int reftable_ref_record_encode(const void *rec, struct string_view s, + int hash_size) +{ + const struct reftable_ref_record *r = + (const struct reftable_ref_record *)rec; + struct string_view start = s; + int n = put_var_int(&s, r->update_index); + assert(hash_size > 0); + if (n < 0) + return -1; + string_view_consume(&s, n); + + switch (r->value_type) { + case REFTABLE_REF_SYMREF: + n = encode_string(r->value.symref, s); + if (n < 0) { + return -1; + } + string_view_consume(&s, n); + break; + case REFTABLE_REF_VAL2: + if (s.len < 2 * hash_size) { + return -1; + } + memcpy(s.buf, r->value.val2.value, hash_size); + string_view_consume(&s, hash_size); + memcpy(s.buf, r->value.val2.target_value, hash_size); + string_view_consume(&s, hash_size); + break; + case REFTABLE_REF_VAL1: + if (s.len < hash_size) { + return -1; + } + memcpy(s.buf, r->value.val1, hash_size); + string_view_consume(&s, hash_size); + break; + case REFTABLE_REF_DELETION: + break; + default: + abort(); + } + + return start.len - s.len; +} + +static int reftable_ref_record_decode(void *rec, struct strbuf key, + uint8_t val_type, struct string_view in, + int hash_size) +{ + struct reftable_ref_record *r = rec; + struct string_view start = in; + uint64_t update_index = 0; + int n = get_var_int(&update_index, &in); + if (n < 0) + return n; + string_view_consume(&in, n); + + reftable_ref_record_release(r); + + assert(hash_size > 0); + + r->refname = reftable_realloc(r->refname, key.len + 1); + memcpy(r->refname, key.buf, key.len); + r->update_index = update_index; + r->refname[key.len] = 0; + r->value_type = val_type; + switch (val_type) { + case REFTABLE_REF_VAL1: + if (in.len < hash_size) { + return -1; + } + + r->value.val1 = reftable_malloc(hash_size); + memcpy(r->value.val1, in.buf, hash_size); + string_view_consume(&in, hash_size); + break; + + case REFTABLE_REF_VAL2: + if (in.len < 2 * hash_size) { + return -1; + } + + r->value.val2.value = reftable_malloc(hash_size); + memcpy(r->value.val2.value, in.buf, hash_size); + string_view_consume(&in, hash_size); + + r->value.val2.target_value = reftable_malloc(hash_size); + memcpy(r->value.val2.target_value, in.buf, hash_size); + string_view_consume(&in, hash_size); + break; + + case REFTABLE_REF_SYMREF: { + struct strbuf dest = STRBUF_INIT; + int n = decode_string(&dest, in); + if (n < 0) { + return -1; + } + string_view_consume(&in, n); + r->value.symref = dest.buf; + } break; + + case REFTABLE_REF_DELETION: + break; + default: + abort(); + break; + } + + return start.len - in.len; +} + +static int reftable_ref_record_is_deletion_void(const void *p) +{ + return reftable_ref_record_is_deletion( + (const struct reftable_ref_record *)p); +} + +static struct reftable_record_vtable reftable_ref_record_vtable = { + .key = &reftable_ref_record_key, + .type = BLOCK_TYPE_REF, + .copy_from = &reftable_ref_record_copy_from, + .val_type = &reftable_ref_record_val_type, + .encode = &reftable_ref_record_encode, + .decode = &reftable_ref_record_decode, + .release = &reftable_ref_record_release_void, + .is_deletion = &reftable_ref_record_is_deletion_void, +}; + +static void reftable_obj_record_key(const void *r, struct strbuf *dest) +{ + const struct reftable_obj_record *rec = + (const struct reftable_obj_record *)r; + strbuf_reset(dest); + strbuf_add(dest, rec->hash_prefix, rec->hash_prefix_len); +} + +static void reftable_obj_record_release(void *rec) +{ + struct reftable_obj_record *obj = rec; + FREE_AND_NULL(obj->hash_prefix); + FREE_AND_NULL(obj->offsets); + memset(obj, 0, sizeof(struct reftable_obj_record)); +} + +static void reftable_obj_record_copy_from(void *rec, const void *src_rec, + int hash_size) +{ + struct reftable_obj_record *obj = rec; + const struct reftable_obj_record *src = + (const struct reftable_obj_record *)src_rec; + + reftable_obj_record_release(obj); + *obj = *src; + obj->hash_prefix = reftable_malloc(obj->hash_prefix_len); + memcpy(obj->hash_prefix, src->hash_prefix, obj->hash_prefix_len); + + obj->offsets = reftable_malloc(obj->offset_len * sizeof(uint64_t)); + COPY_ARRAY(obj->offsets, src->offsets, obj->offset_len); +} + +static uint8_t reftable_obj_record_val_type(const void *rec) +{ + const struct reftable_obj_record *r = rec; + if (r->offset_len > 0 && r->offset_len < 8) + return r->offset_len; + return 0; +} + +static int reftable_obj_record_encode(const void *rec, struct string_view s, + int hash_size) +{ + const struct reftable_obj_record *r = rec; + struct string_view start = s; + int i = 0; + int n = 0; + uint64_t last = 0; + if (r->offset_len == 0 || r->offset_len >= 8) { + n = put_var_int(&s, r->offset_len); + if (n < 0) { + return -1; + } + string_view_consume(&s, n); + } + if (r->offset_len == 0) + return start.len - s.len; + n = put_var_int(&s, r->offsets[0]); + if (n < 0) + return -1; + string_view_consume(&s, n); + + last = r->offsets[0]; + for (i = 1; i < r->offset_len; i++) { + int n = put_var_int(&s, r->offsets[i] - last); + if (n < 0) { + return -1; + } + string_view_consume(&s, n); + last = r->offsets[i]; + } + return start.len - s.len; +} + +static int reftable_obj_record_decode(void *rec, struct strbuf key, + uint8_t val_type, struct string_view in, + int hash_size) +{ + struct string_view start = in; + struct reftable_obj_record *r = rec; + uint64_t count = val_type; + int n = 0; + uint64_t last; + int j; + r->hash_prefix = reftable_malloc(key.len); + memcpy(r->hash_prefix, key.buf, key.len); + r->hash_prefix_len = key.len; + + if (val_type == 0) { + n = get_var_int(&count, &in); + if (n < 0) { + return n; + } + + string_view_consume(&in, n); + } + + r->offsets = NULL; + r->offset_len = 0; + if (count == 0) + return start.len - in.len; + + r->offsets = reftable_malloc(count * sizeof(uint64_t)); + r->offset_len = count; + + n = get_var_int(&r->offsets[0], &in); + if (n < 0) + return n; + string_view_consume(&in, n); + + last = r->offsets[0]; + j = 1; + while (j < count) { + uint64_t delta = 0; + int n = get_var_int(&delta, &in); + if (n < 0) { + return n; + } + string_view_consume(&in, n); + + last = r->offsets[j] = (delta + last); + j++; + } + return start.len - in.len; +} + +static int not_a_deletion(const void *p) +{ + return 0; +} + +static struct reftable_record_vtable reftable_obj_record_vtable = { + .key = &reftable_obj_record_key, + .type = BLOCK_TYPE_OBJ, + .copy_from = &reftable_obj_record_copy_from, + .val_type = &reftable_obj_record_val_type, + .encode = &reftable_obj_record_encode, + .decode = &reftable_obj_record_decode, + .release = &reftable_obj_record_release, + .is_deletion = not_a_deletion, +}; + +void reftable_log_record_print(struct reftable_log_record *log, + uint32_t hash_id) +{ + char hex[GIT_SHA256_RAWSZ + 1] = { 0 }; + + switch (log->value_type) { + case REFTABLE_LOG_DELETION: + printf("log{%s(%" PRIu64 ") delete", log->refname, + log->update_index); + break; + case REFTABLE_LOG_UPDATE: + printf("log{%s(%" PRIu64 ") %s <%s> %" PRIu64 " %04d\n", + log->refname, log->update_index, log->value.update.name, + log->value.update.email, log->value.update.time, + log->value.update.tz_offset); + hex_format(hex, log->value.update.old_hash, hash_size(hash_id)); + printf("%s => ", hex); + hex_format(hex, log->value.update.new_hash, hash_size(hash_id)); + printf("%s\n\n%s\n}\n", hex, log->value.update.message); + break; + } +} + +static void reftable_log_record_key(const void *r, struct strbuf *dest) +{ + const struct reftable_log_record *rec = + (const struct reftable_log_record *)r; + int len = strlen(rec->refname); + uint8_t i64[8]; + uint64_t ts = 0; + strbuf_reset(dest); + strbuf_add(dest, (uint8_t *)rec->refname, len + 1); + + ts = (~ts) - rec->update_index; + put_be64(&i64[0], ts); + strbuf_add(dest, i64, sizeof(i64)); +} + +static void reftable_log_record_copy_from(void *rec, const void *src_rec, + int hash_size) +{ + struct reftable_log_record *dst = rec; + const struct reftable_log_record *src = + (const struct reftable_log_record *)src_rec; + + reftable_log_record_release(dst); + *dst = *src; + if (dst->refname) { + dst->refname = xstrdup(dst->refname); + } + switch (dst->value_type) { + case REFTABLE_LOG_DELETION: + break; + case REFTABLE_LOG_UPDATE: + if (dst->value.update.email) { + dst->value.update.email = + xstrdup(dst->value.update.email); + } + if (dst->value.update.name) { + dst->value.update.name = + xstrdup(dst->value.update.name); + } + if (dst->value.update.message) { + dst->value.update.message = + xstrdup(dst->value.update.message); + } + + if (dst->value.update.new_hash) { + dst->value.update.new_hash = reftable_malloc(hash_size); + memcpy(dst->value.update.new_hash, + src->value.update.new_hash, hash_size); + } + if (dst->value.update.old_hash) { + dst->value.update.old_hash = reftable_malloc(hash_size); + memcpy(dst->value.update.old_hash, + src->value.update.old_hash, hash_size); + } + break; + } +} + +static void reftable_log_record_release_void(void *rec) +{ + struct reftable_log_record *r = rec; + reftable_log_record_release(r); +} + +void reftable_log_record_release(struct reftable_log_record *r) +{ + reftable_free(r->refname); + switch (r->value_type) { + case REFTABLE_LOG_DELETION: + break; + case REFTABLE_LOG_UPDATE: + reftable_free(r->value.update.new_hash); + reftable_free(r->value.update.old_hash); + reftable_free(r->value.update.name); + reftable_free(r->value.update.email); + reftable_free(r->value.update.message); + break; + } + memset(r, 0, sizeof(struct reftable_log_record)); +} + +static uint8_t reftable_log_record_val_type(const void *rec) +{ + const struct reftable_log_record *log = + (const struct reftable_log_record *)rec; + + return reftable_log_record_is_deletion(log) ? 0 : 1; +} + +static uint8_t zero[GIT_SHA256_RAWSZ] = { 0 }; + +static int reftable_log_record_encode(const void *rec, struct string_view s, + int hash_size) +{ + const struct reftable_log_record *r = rec; + struct string_view start = s; + int n = 0; + uint8_t *oldh = NULL; + uint8_t *newh = NULL; + if (reftable_log_record_is_deletion(r)) + return 0; + + oldh = r->value.update.old_hash; + newh = r->value.update.new_hash; + if (!oldh) { + oldh = zero; + } + if (!newh) { + newh = zero; + } + + if (s.len < 2 * hash_size) + return -1; + + memcpy(s.buf, oldh, hash_size); + memcpy(s.buf + hash_size, newh, hash_size); + string_view_consume(&s, 2 * hash_size); + + n = encode_string(r->value.update.name ? r->value.update.name : "", s); + if (n < 0) + return -1; + string_view_consume(&s, n); + + n = encode_string(r->value.update.email ? r->value.update.email : "", + s); + if (n < 0) + return -1; + string_view_consume(&s, n); + + n = put_var_int(&s, r->value.update.time); + if (n < 0) + return -1; + string_view_consume(&s, n); + + if (s.len < 2) + return -1; + + put_be16(s.buf, r->value.update.tz_offset); + string_view_consume(&s, 2); + + n = encode_string( + r->value.update.message ? r->value.update.message : "", s); + if (n < 0) + return -1; + string_view_consume(&s, n); + + return start.len - s.len; +} + +static int reftable_log_record_decode(void *rec, struct strbuf key, + uint8_t val_type, struct string_view in, + int hash_size) +{ + struct string_view start = in; + struct reftable_log_record *r = rec; + uint64_t max = 0; + uint64_t ts = 0; + struct strbuf dest = STRBUF_INIT; + int n; + + if (key.len <= 9 || key.buf[key.len - 9] != 0) + return REFTABLE_FORMAT_ERROR; + + r->refname = reftable_realloc(r->refname, key.len - 8); + memcpy(r->refname, key.buf, key.len - 8); + ts = get_be64(key.buf + key.len - 8); + + r->update_index = (~max) - ts; + + if (val_type != r->value_type) { + switch (r->value_type) { + case REFTABLE_LOG_UPDATE: + FREE_AND_NULL(r->value.update.old_hash); + FREE_AND_NULL(r->value.update.new_hash); + FREE_AND_NULL(r->value.update.message); + FREE_AND_NULL(r->value.update.email); + FREE_AND_NULL(r->value.update.name); + break; + case REFTABLE_LOG_DELETION: + break; + } + } + + r->value_type = val_type; + if (val_type == REFTABLE_LOG_DELETION) + return 0; + + if (in.len < 2 * hash_size) + return REFTABLE_FORMAT_ERROR; + + r->value.update.old_hash = + reftable_realloc(r->value.update.old_hash, hash_size); + r->value.update.new_hash = + reftable_realloc(r->value.update.new_hash, hash_size); + + memcpy(r->value.update.old_hash, in.buf, hash_size); + memcpy(r->value.update.new_hash, in.buf + hash_size, hash_size); + + string_view_consume(&in, 2 * hash_size); + + n = decode_string(&dest, in); + if (n < 0) + goto done; + string_view_consume(&in, n); + + r->value.update.name = + reftable_realloc(r->value.update.name, dest.len + 1); + memcpy(r->value.update.name, dest.buf, dest.len); + r->value.update.name[dest.len] = 0; + + strbuf_reset(&dest); + n = decode_string(&dest, in); + if (n < 0) + goto done; + string_view_consume(&in, n); + + r->value.update.email = + reftable_realloc(r->value.update.email, dest.len + 1); + memcpy(r->value.update.email, dest.buf, dest.len); + r->value.update.email[dest.len] = 0; + + ts = 0; + n = get_var_int(&ts, &in); + if (n < 0) + goto done; + string_view_consume(&in, n); + r->value.update.time = ts; + if (in.len < 2) + goto done; + + r->value.update.tz_offset = get_be16(in.buf); + string_view_consume(&in, 2); + + strbuf_reset(&dest); + n = decode_string(&dest, in); + if (n < 0) + goto done; + string_view_consume(&in, n); + + r->value.update.message = + reftable_realloc(r->value.update.message, dest.len + 1); + memcpy(r->value.update.message, dest.buf, dest.len); + r->value.update.message[dest.len] = 0; + + strbuf_release(&dest); + return start.len - in.len; + +done: + strbuf_release(&dest); + return REFTABLE_FORMAT_ERROR; +} + +static int null_streq(char *a, char *b) +{ + char *empty = ""; + if (!a) + a = empty; + + if (!b) + b = empty; + + return 0 == strcmp(a, b); +} + +static int zero_hash_eq(uint8_t *a, uint8_t *b, int sz) +{ + if (!a) + a = zero; + + if (!b) + b = zero; + + return !memcmp(a, b, sz); +} + +int reftable_log_record_equal(struct reftable_log_record *a, + struct reftable_log_record *b, int hash_size) +{ + if (!(null_streq(a->refname, b->refname) && + a->update_index == b->update_index && + a->value_type == b->value_type)) + return 0; + + switch (a->value_type) { + case REFTABLE_LOG_DELETION: + return 1; + case REFTABLE_LOG_UPDATE: + return null_streq(a->value.update.name, b->value.update.name) && + a->value.update.time == b->value.update.time && + a->value.update.tz_offset == b->value.update.tz_offset && + null_streq(a->value.update.email, + b->value.update.email) && + null_streq(a->value.update.message, + b->value.update.message) && + zero_hash_eq(a->value.update.old_hash, + b->value.update.old_hash, hash_size) && + zero_hash_eq(a->value.update.new_hash, + b->value.update.new_hash, hash_size); + } + + abort(); +} + +static int reftable_log_record_is_deletion_void(const void *p) +{ + return reftable_log_record_is_deletion( + (const struct reftable_log_record *)p); +} + +static struct reftable_record_vtable reftable_log_record_vtable = { + .key = &reftable_log_record_key, + .type = BLOCK_TYPE_LOG, + .copy_from = &reftable_log_record_copy_from, + .val_type = &reftable_log_record_val_type, + .encode = &reftable_log_record_encode, + .decode = &reftable_log_record_decode, + .release = &reftable_log_record_release_void, + .is_deletion = &reftable_log_record_is_deletion_void, +}; + +struct reftable_record reftable_new_record(uint8_t typ) +{ + struct reftable_record rec = { NULL }; + switch (typ) { + case BLOCK_TYPE_REF: { + struct reftable_ref_record *r = + reftable_calloc(sizeof(struct reftable_ref_record)); + reftable_record_from_ref(&rec, r); + return rec; + } + + case BLOCK_TYPE_OBJ: { + struct reftable_obj_record *r = + reftable_calloc(sizeof(struct reftable_obj_record)); + reftable_record_from_obj(&rec, r); + return rec; + } + case BLOCK_TYPE_LOG: { + struct reftable_log_record *r = + reftable_calloc(sizeof(struct reftable_log_record)); + reftable_record_from_log(&rec, r); + return rec; + } + case BLOCK_TYPE_INDEX: { + struct reftable_index_record empty = { .last_key = + STRBUF_INIT }; + struct reftable_index_record *r = + reftable_calloc(sizeof(struct reftable_index_record)); + *r = empty; + reftable_record_from_index(&rec, r); + return rec; + } + } + abort(); + return rec; +} + +/* clear out the record, yielding the reftable_record data that was + * encapsulated. */ +static void *reftable_record_yield(struct reftable_record *rec) +{ + void *p = rec->data; + rec->data = NULL; + return p; +} + +void reftable_record_destroy(struct reftable_record *rec) +{ + reftable_record_release(rec); + reftable_free(reftable_record_yield(rec)); +} + +static void reftable_index_record_key(const void *r, struct strbuf *dest) +{ + const struct reftable_index_record *rec = r; + strbuf_reset(dest); + strbuf_addbuf(dest, &rec->last_key); +} + +static void reftable_index_record_copy_from(void *rec, const void *src_rec, + int hash_size) +{ + struct reftable_index_record *dst = rec; + const struct reftable_index_record *src = src_rec; + + strbuf_reset(&dst->last_key); + strbuf_addbuf(&dst->last_key, &src->last_key); + dst->offset = src->offset; +} + +static void reftable_index_record_release(void *rec) +{ + struct reftable_index_record *idx = rec; + strbuf_release(&idx->last_key); +} + +static uint8_t reftable_index_record_val_type(const void *rec) +{ + return 0; +} + +static int reftable_index_record_encode(const void *rec, struct string_view out, + int hash_size) +{ + const struct reftable_index_record *r = + (const struct reftable_index_record *)rec; + struct string_view start = out; + + int n = put_var_int(&out, r->offset); + if (n < 0) + return n; + + string_view_consume(&out, n); + + return start.len - out.len; +} + +static int reftable_index_record_decode(void *rec, struct strbuf key, + uint8_t val_type, struct string_view in, + int hash_size) +{ + struct string_view start = in; + struct reftable_index_record *r = rec; + int n = 0; + + strbuf_reset(&r->last_key); + strbuf_addbuf(&r->last_key, &key); + + n = get_var_int(&r->offset, &in); + if (n < 0) + return n; + + string_view_consume(&in, n); + return start.len - in.len; +} + +static struct reftable_record_vtable reftable_index_record_vtable = { + .key = &reftable_index_record_key, + .type = BLOCK_TYPE_INDEX, + .copy_from = &reftable_index_record_copy_from, + .val_type = &reftable_index_record_val_type, + .encode = &reftable_index_record_encode, + .decode = &reftable_index_record_decode, + .release = &reftable_index_record_release, + .is_deletion = ¬_a_deletion, +}; + +void reftable_record_key(struct reftable_record *rec, struct strbuf *dest) +{ + rec->ops->key(rec->data, dest); +} + +uint8_t reftable_record_type(struct reftable_record *rec) +{ + return rec->ops->type; +} + +int reftable_record_encode(struct reftable_record *rec, struct string_view dest, + int hash_size) +{ + return rec->ops->encode(rec->data, dest, hash_size); +} + +void reftable_record_copy_from(struct reftable_record *rec, + struct reftable_record *src, int hash_size) +{ + assert(src->ops->type == rec->ops->type); + + rec->ops->copy_from(rec->data, src->data, hash_size); +} + +uint8_t reftable_record_val_type(struct reftable_record *rec) +{ + return rec->ops->val_type(rec->data); +} + +int reftable_record_decode(struct reftable_record *rec, struct strbuf key, + uint8_t extra, struct string_view src, int hash_size) +{ + return rec->ops->decode(rec->data, key, extra, src, hash_size); +} + +void reftable_record_release(struct reftable_record *rec) +{ + rec->ops->release(rec->data); +} + +int reftable_record_is_deletion(struct reftable_record *rec) +{ + return rec->ops->is_deletion(rec->data); +} + +void reftable_record_from_ref(struct reftable_record *rec, + struct reftable_ref_record *ref_rec) +{ + assert(!rec->ops); + rec->data = ref_rec; + rec->ops = &reftable_ref_record_vtable; +} + +void reftable_record_from_obj(struct reftable_record *rec, + struct reftable_obj_record *obj_rec) +{ + assert(!rec->ops); + rec->data = obj_rec; + rec->ops = &reftable_obj_record_vtable; +} + +void reftable_record_from_index(struct reftable_record *rec, + struct reftable_index_record *index_rec) +{ + assert(!rec->ops); + rec->data = index_rec; + rec->ops = &reftable_index_record_vtable; +} + +void reftable_record_from_log(struct reftable_record *rec, + struct reftable_log_record *log_rec) +{ + assert(!rec->ops); + rec->data = log_rec; + rec->ops = &reftable_log_record_vtable; +} + +struct reftable_ref_record *reftable_record_as_ref(struct reftable_record *rec) +{ + assert(reftable_record_type(rec) == BLOCK_TYPE_REF); + return rec->data; +} + +struct reftable_log_record *reftable_record_as_log(struct reftable_record *rec) +{ + assert(reftable_record_type(rec) == BLOCK_TYPE_LOG); + return rec->data; +} + +static int hash_equal(uint8_t *a, uint8_t *b, int hash_size) +{ + if (a && b) + return !memcmp(a, b, hash_size); + + return a == b; +} + +int reftable_ref_record_equal(struct reftable_ref_record *a, + struct reftable_ref_record *b, int hash_size) +{ + assert(hash_size > 0); + if (!(0 == strcmp(a->refname, b->refname) && + a->update_index == b->update_index && + a->value_type == b->value_type)) + return 0; + + switch (a->value_type) { + case REFTABLE_REF_SYMREF: + return !strcmp(a->value.symref, b->value.symref); + case REFTABLE_REF_VAL2: + return hash_equal(a->value.val2.value, b->value.val2.value, + hash_size) && + hash_equal(a->value.val2.target_value, + b->value.val2.target_value, hash_size); + case REFTABLE_REF_VAL1: + return hash_equal(a->value.val1, b->value.val1, hash_size); + case REFTABLE_REF_DELETION: + return 1; + default: + abort(); + } +} + +int reftable_ref_record_compare_name(const void *a, const void *b) +{ + return strcmp(((struct reftable_ref_record *)a)->refname, + ((struct reftable_ref_record *)b)->refname); +} + +int reftable_ref_record_is_deletion(const struct reftable_ref_record *ref) +{ + return ref->value_type == REFTABLE_REF_DELETION; +} + +int reftable_log_record_compare_key(const void *a, const void *b) +{ + const struct reftable_log_record *la = a; + const struct reftable_log_record *lb = b; + + int cmp = strcmp(la->refname, lb->refname); + if (cmp) + return cmp; + if (la->update_index > lb->update_index) + return -1; + return (la->update_index < lb->update_index) ? 1 : 0; +} + +int reftable_log_record_is_deletion(const struct reftable_log_record *log) +{ + return (log->value_type == REFTABLE_LOG_DELETION); +} + +void string_view_consume(struct string_view *s, int n) +{ + s->buf += n; + s->len -= n; +} diff --git a/reftable/record.h b/reftable/record.h new file mode 100644 index 0000000000..498e8c50bf --- /dev/null +++ b/reftable/record.h @@ -0,0 +1,139 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef RECORD_H +#define RECORD_H + +#include "system.h" + +#include <stdint.h> + +#include "reftable-record.h" + +/* + * A substring of existing string data. This structure takes no responsibility + * for the lifetime of the data it points to. + */ +struct string_view { + uint8_t *buf; + size_t len; +}; + +/* Advance `s.buf` by `n`, and decrease length. */ +void string_view_consume(struct string_view *s, int n); + +/* utilities for de/encoding varints */ + +int get_var_int(uint64_t *dest, struct string_view *in); +int put_var_int(struct string_view *dest, uint64_t val); + +/* Methods for records. */ +struct reftable_record_vtable { + /* encode the key of to a uint8_t strbuf. */ + void (*key)(const void *rec, struct strbuf *dest); + + /* The record type of ('r' for ref). */ + uint8_t type; + + void (*copy_from)(void *dest, const void *src, int hash_size); + + /* a value of [0..7], indicating record subvariants (eg. ref vs. symref + * vs ref deletion) */ + uint8_t (*val_type)(const void *rec); + + /* encodes rec into dest, returning how much space was used. */ + int (*encode)(const void *rec, struct string_view dest, int hash_size); + + /* decode data from `src` into the record. */ + int (*decode)(void *rec, struct strbuf key, uint8_t extra, + struct string_view src, int hash_size); + + /* deallocate and null the record. */ + void (*release)(void *rec); + + /* is this a tombstone? */ + int (*is_deletion)(const void *rec); +}; + +/* record is a generic wrapper for different types of records. */ +struct reftable_record { + void *data; + struct reftable_record_vtable *ops; +}; + +/* returns true for recognized block types. Block start with the block type. */ +int reftable_is_block_type(uint8_t typ); + +/* creates a malloced record of the given type. Dispose with record_destroy */ +struct reftable_record reftable_new_record(uint8_t typ); + +/* Encode `key` into `dest`. Sets `is_restart` to indicate a restart. Returns + * number of bytes written. */ +int reftable_encode_key(int *is_restart, struct string_view dest, + struct strbuf prev_key, struct strbuf key, + uint8_t extra); + +/* Decode into `key` and `extra` from `in` */ +int reftable_decode_key(struct strbuf *key, uint8_t *extra, + struct strbuf last_key, struct string_view in); + +/* reftable_index_record are used internally to speed up lookups. */ +struct reftable_index_record { + uint64_t offset; /* Offset of block */ + struct strbuf last_key; /* Last key of the block. */ +}; + +/* reftable_obj_record stores an object ID => ref mapping. */ +struct reftable_obj_record { + uint8_t *hash_prefix; /* leading bytes of the object ID */ + int hash_prefix_len; /* number of leading bytes. Constant + * across a single table. */ + uint64_t *offsets; /* a vector of file offsets. */ + int offset_len; +}; + +/* see struct record_vtable */ + +void reftable_record_key(struct reftable_record *rec, struct strbuf *dest); +uint8_t reftable_record_type(struct reftable_record *rec); +void reftable_record_copy_from(struct reftable_record *rec, + struct reftable_record *src, int hash_size); +uint8_t reftable_record_val_type(struct reftable_record *rec); +int reftable_record_encode(struct reftable_record *rec, struct string_view dest, + int hash_size); +int reftable_record_decode(struct reftable_record *rec, struct strbuf key, + uint8_t extra, struct string_view src, + int hash_size); +int reftable_record_is_deletion(struct reftable_record *rec); + +/* zeroes out the embedded record */ +void reftable_record_release(struct reftable_record *rec); + +/* clear and deallocate embedded record, and zero `rec`. */ +void reftable_record_destroy(struct reftable_record *rec); + +/* initialize generic records from concrete records. The generic record should + * be zeroed out. */ +void reftable_record_from_obj(struct reftable_record *rec, + struct reftable_obj_record *objrec); +void reftable_record_from_index(struct reftable_record *rec, + struct reftable_index_record *idxrec); +void reftable_record_from_ref(struct reftable_record *rec, + struct reftable_ref_record *refrec); +void reftable_record_from_log(struct reftable_record *rec, + struct reftable_log_record *logrec); +struct reftable_ref_record *reftable_record_as_ref(struct reftable_record *ref); +struct reftable_log_record *reftable_record_as_log(struct reftable_record *ref); + +/* for qsort. */ +int reftable_ref_record_compare_name(const void *a, const void *b); + +/* for qsort. */ +int reftable_log_record_compare_key(const void *a, const void *b); + +#endif diff --git a/reftable/record_test.c b/reftable/record_test.c new file mode 100644 index 0000000000..f4ad7cace4 --- /dev/null +++ b/reftable/record_test.c @@ -0,0 +1,412 @@ +/* + Copyright 2020 Google LLC + + Use of this source code is governed by a BSD-style + license that can be found in the LICENSE file or at + https://developers.google.com/open-source/licenses/bsd +*/ + +#include "record.h" + +#include "system.h" +#include "basics.h" +#include "constants.h" +#include "test_framework.h" +#include "reftable-tests.h" + +static void test_copy(struct reftable_record *rec) +{ + struct reftable_record copy = + reftable_new_record(reftable_record_type(rec)); + reftable_record_copy_from(©, rec, GIT_SHA1_RAWSZ); + /* do it twice to catch memory leaks */ + reftable_record_copy_from(©, rec, GIT_SHA1_RAWSZ); + switch (reftable_record_type(©)) { + case BLOCK_TYPE_REF: + EXPECT(reftable_ref_record_equal(reftable_record_as_ref(©), + reftable_record_as_ref(rec), + GIT_SHA1_RAWSZ)); + break; + case BLOCK_TYPE_LOG: + EXPECT(reftable_log_record_equal(reftable_record_as_log(©), + reftable_record_as_log(rec), + GIT_SHA1_RAWSZ)); + break; + } + reftable_record_destroy(©); +} + +static void test_varint_roundtrip(void) +{ + uint64_t inputs[] = { 0, + 1, + 27, + 127, + 128, + 257, + 4096, + ((uint64_t)1 << 63), + ((uint64_t)1 << 63) + ((uint64_t)1 << 63) - 1 }; + int i = 0; + for (i = 0; i < ARRAY_SIZE(inputs); i++) { + uint8_t dest[10]; + + struct string_view out = { + .buf = dest, + .len = sizeof(dest), + }; + uint64_t in = inputs[i]; + int n = put_var_int(&out, in); + uint64_t got = 0; + + EXPECT(n > 0); + out.len = n; + n = get_var_int(&got, &out); + EXPECT(n > 0); + + EXPECT(got == in); + } +} + +static void test_common_prefix(void) +{ + struct { + const char *a, *b; + int want; + } cases[] = { + { "abc", "ab", 2 }, + { "", "abc", 0 }, + { "abc", "abd", 2 }, + { "abc", "pqr", 0 }, + }; + + int i = 0; + for (i = 0; i < ARRAY_SIZE(cases); i++) { + struct strbuf a = STRBUF_INIT; + struct strbuf b = STRBUF_INIT; + strbuf_addstr(&a, cases[i].a); + strbuf_addstr(&b, cases[i].b); + EXPECT(common_prefix_size(&a, &b) == cases[i].want); + + strbuf_release(&a); + strbuf_release(&b); + } +} + +static void set_hash(uint8_t *h, int j) +{ + int i = 0; + for (i = 0; i < hash_size(GIT_SHA1_FORMAT_ID); i++) { + h[i] = (j >> i) & 0xff; + } +} + +static void test_reftable_ref_record_roundtrip(void) +{ + int i = 0; + + for (i = REFTABLE_REF_DELETION; i < REFTABLE_NR_REF_VALUETYPES; i++) { + struct reftable_ref_record in = { NULL }; + struct reftable_ref_record out = { NULL }; + struct reftable_record rec_out = { NULL }; + struct strbuf key = STRBUF_INIT; + struct reftable_record rec = { NULL }; + uint8_t buffer[1024] = { 0 }; + struct string_view dest = { + .buf = buffer, + .len = sizeof(buffer), + }; + + int n, m; + + in.value_type = i; + switch (i) { + case REFTABLE_REF_DELETION: + break; + case REFTABLE_REF_VAL1: + in.value.val1 = reftable_malloc(GIT_SHA1_RAWSZ); + set_hash(in.value.val1, 1); + break; + case REFTABLE_REF_VAL2: + in.value.val2.value = reftable_malloc(GIT_SHA1_RAWSZ); + set_hash(in.value.val2.value, 1); + in.value.val2.target_value = + reftable_malloc(GIT_SHA1_RAWSZ); + set_hash(in.value.val2.target_value, 2); + break; + case REFTABLE_REF_SYMREF: + in.value.symref = xstrdup("target"); + break; + } + in.refname = xstrdup("refs/heads/master"); + + reftable_record_from_ref(&rec, &in); + test_copy(&rec); + + EXPECT(reftable_record_val_type(&rec) == i); + + reftable_record_key(&rec, &key); + n = reftable_record_encode(&rec, dest, GIT_SHA1_RAWSZ); + EXPECT(n > 0); + + /* decode into a non-zero reftable_record to test for leaks. */ + + reftable_record_from_ref(&rec_out, &out); + m = reftable_record_decode(&rec_out, key, i, dest, + GIT_SHA1_RAWSZ); + EXPECT(n == m); + + EXPECT(reftable_ref_record_equal(&in, &out, GIT_SHA1_RAWSZ)); + reftable_record_release(&rec_out); + + strbuf_release(&key); + reftable_ref_record_release(&in); + } +} + +static void test_reftable_log_record_equal(void) +{ + struct reftable_log_record in[2] = { + { + .refname = xstrdup("refs/heads/master"), + .update_index = 42, + }, + { + .refname = xstrdup("refs/heads/master"), + .update_index = 22, + } + }; + + EXPECT(!reftable_log_record_equal(&in[0], &in[1], GIT_SHA1_RAWSZ)); + in[1].update_index = in[0].update_index; + EXPECT(reftable_log_record_equal(&in[0], &in[1], GIT_SHA1_RAWSZ)); + reftable_log_record_release(&in[0]); + reftable_log_record_release(&in[1]); +} + +static void test_reftable_log_record_roundtrip(void) +{ + int i; + struct reftable_log_record in[2] = { + { + .refname = xstrdup("refs/heads/master"), + .update_index = 42, + .value_type = REFTABLE_LOG_UPDATE, + .value = { + .update = { + .old_hash = reftable_malloc(GIT_SHA1_RAWSZ), + .new_hash = reftable_malloc(GIT_SHA1_RAWSZ), + .name = xstrdup("han-wen"), + .email = xstrdup("hanwen@google.com"), + .message = xstrdup("test"), + .time = 1577123507, + .tz_offset = 100, + }, + } + }, + { + .refname = xstrdup("refs/heads/master"), + .update_index = 22, + .value_type = REFTABLE_LOG_DELETION, + } + }; + set_test_hash(in[0].value.update.new_hash, 1); + set_test_hash(in[0].value.update.old_hash, 2); + for (i = 0; i < ARRAY_SIZE(in); i++) { + struct reftable_record rec = { NULL }; + struct strbuf key = STRBUF_INIT; + uint8_t buffer[1024] = { 0 }; + struct string_view dest = { + .buf = buffer, + .len = sizeof(buffer), + }; + /* populate out, to check for leaks. */ + struct reftable_log_record out = { + .refname = xstrdup("old name"), + .value_type = REFTABLE_LOG_UPDATE, + .value = { + .update = { + .new_hash = reftable_calloc(GIT_SHA1_RAWSZ), + .old_hash = reftable_calloc(GIT_SHA1_RAWSZ), + .name = xstrdup("old name"), + .email = xstrdup("old@email"), + .message = xstrdup("old message"), + }, + }, + }; + struct reftable_record rec_out = { NULL }; + int n, m, valtype; + + reftable_record_from_log(&rec, &in[i]); + + test_copy(&rec); + + reftable_record_key(&rec, &key); + + n = reftable_record_encode(&rec, dest, GIT_SHA1_RAWSZ); + EXPECT(n >= 0); + reftable_record_from_log(&rec_out, &out); + valtype = reftable_record_val_type(&rec); + m = reftable_record_decode(&rec_out, key, valtype, dest, + GIT_SHA1_RAWSZ); + EXPECT(n == m); + + EXPECT(reftable_log_record_equal(&in[i], &out, GIT_SHA1_RAWSZ)); + reftable_log_record_release(&in[i]); + strbuf_release(&key); + reftable_record_release(&rec_out); + } +} + +static void test_u24_roundtrip(void) +{ + uint32_t in = 0x112233; + uint8_t dest[3]; + uint32_t out; + put_be24(dest, in); + out = get_be24(dest); + EXPECT(in == out); +} + +static void test_key_roundtrip(void) +{ + uint8_t buffer[1024] = { 0 }; + struct string_view dest = { + .buf = buffer, + .len = sizeof(buffer), + }; + struct strbuf last_key = STRBUF_INIT; + struct strbuf key = STRBUF_INIT; + struct strbuf roundtrip = STRBUF_INIT; + int restart; + uint8_t extra; + int n, m; + uint8_t rt_extra; + + strbuf_addstr(&last_key, "refs/heads/master"); + strbuf_addstr(&key, "refs/tags/bla"); + extra = 6; + n = reftable_encode_key(&restart, dest, last_key, key, extra); + EXPECT(!restart); + EXPECT(n > 0); + + m = reftable_decode_key(&roundtrip, &rt_extra, last_key, dest); + EXPECT(n == m); + EXPECT(0 == strbuf_cmp(&key, &roundtrip)); + EXPECT(rt_extra == extra); + + strbuf_release(&last_key); + strbuf_release(&key); + strbuf_release(&roundtrip); +} + +static void test_reftable_obj_record_roundtrip(void) +{ + uint8_t testHash1[GIT_SHA1_RAWSZ] = { 1, 2, 3, 4, 0 }; + uint64_t till9[] = { 1, 2, 3, 4, 500, 600, 700, 800, 9000 }; + struct reftable_obj_record recs[3] = { { + .hash_prefix = testHash1, + .hash_prefix_len = 5, + .offsets = till9, + .offset_len = 3, + }, + { + .hash_prefix = testHash1, + .hash_prefix_len = 5, + .offsets = till9, + .offset_len = 9, + }, + { + .hash_prefix = testHash1, + .hash_prefix_len = 5, + } }; + int i = 0; + for (i = 0; i < ARRAY_SIZE(recs); i++) { + struct reftable_obj_record in = recs[i]; + uint8_t buffer[1024] = { 0 }; + struct string_view dest = { + .buf = buffer, + .len = sizeof(buffer), + }; + struct reftable_record rec = { NULL }; + struct strbuf key = STRBUF_INIT; + struct reftable_obj_record out = { NULL }; + struct reftable_record rec_out = { NULL }; + int n, m; + uint8_t extra; + + reftable_record_from_obj(&rec, &in); + test_copy(&rec); + reftable_record_key(&rec, &key); + n = reftable_record_encode(&rec, dest, GIT_SHA1_RAWSZ); + EXPECT(n > 0); + extra = reftable_record_val_type(&rec); + reftable_record_from_obj(&rec_out, &out); + m = reftable_record_decode(&rec_out, key, extra, dest, + GIT_SHA1_RAWSZ); + EXPECT(n == m); + + EXPECT(in.hash_prefix_len == out.hash_prefix_len); + EXPECT(in.offset_len == out.offset_len); + + EXPECT(!memcmp(in.hash_prefix, out.hash_prefix, + in.hash_prefix_len)); + EXPECT(0 == memcmp(in.offsets, out.offsets, + sizeof(uint64_t) * in.offset_len)); + strbuf_release(&key); + reftable_record_release(&rec_out); + } +} + +static void test_reftable_index_record_roundtrip(void) +{ + struct reftable_index_record in = { + .offset = 42, + .last_key = STRBUF_INIT, + }; + uint8_t buffer[1024] = { 0 }; + struct string_view dest = { + .buf = buffer, + .len = sizeof(buffer), + }; + struct strbuf key = STRBUF_INIT; + struct reftable_record rec = { NULL }; + struct reftable_index_record out = { .last_key = STRBUF_INIT }; + struct reftable_record out_rec = { NULL }; + int n, m; + uint8_t extra; + + strbuf_addstr(&in.last_key, "refs/heads/master"); + reftable_record_from_index(&rec, &in); + reftable_record_key(&rec, &key); + test_copy(&rec); + + EXPECT(0 == strbuf_cmp(&key, &in.last_key)); + n = reftable_record_encode(&rec, dest, GIT_SHA1_RAWSZ); + EXPECT(n > 0); + + extra = reftable_record_val_type(&rec); + reftable_record_from_index(&out_rec, &out); + m = reftable_record_decode(&out_rec, key, extra, dest, GIT_SHA1_RAWSZ); + EXPECT(m == n); + + EXPECT(in.offset == out.offset); + + reftable_record_release(&out_rec); + strbuf_release(&key); + strbuf_release(&in.last_key); +} + +int record_test_main(int argc, const char *argv[]) +{ + RUN_TEST(test_reftable_log_record_equal); + RUN_TEST(test_reftable_log_record_roundtrip); + RUN_TEST(test_reftable_ref_record_roundtrip); + RUN_TEST(test_varint_roundtrip); + RUN_TEST(test_key_roundtrip); + RUN_TEST(test_common_prefix); + RUN_TEST(test_reftable_obj_record_roundtrip); + RUN_TEST(test_reftable_index_record_roundtrip); + RUN_TEST(test_u24_roundtrip); + return 0; +} diff --git a/reftable/refname.c b/reftable/refname.c new file mode 100644 index 0000000000..9573496932 --- /dev/null +++ b/reftable/refname.c @@ -0,0 +1,209 @@ +/* + Copyright 2020 Google LLC + + Use of this source code is governed by a BSD-style + license that can be found in the LICENSE file or at + https://developers.google.com/open-source/licenses/bsd +*/ + +#include "system.h" +#include "reftable-error.h" +#include "basics.h" +#include "refname.h" +#include "reftable-iterator.h" + +struct find_arg { + char **names; + const char *want; +}; + +static int find_name(size_t k, void *arg) +{ + struct find_arg *f_arg = arg; + return strcmp(f_arg->names[k], f_arg->want) >= 0; +} + +static int modification_has_ref(struct modification *mod, const char *name) +{ + struct reftable_ref_record ref = { NULL }; + int err = 0; + + if (mod->add_len > 0) { + struct find_arg arg = { + .names = mod->add, + .want = name, + }; + int idx = binsearch(mod->add_len, find_name, &arg); + if (idx < mod->add_len && !strcmp(mod->add[idx], name)) { + return 0; + } + } + + if (mod->del_len > 0) { + struct find_arg arg = { + .names = mod->del, + .want = name, + }; + int idx = binsearch(mod->del_len, find_name, &arg); + if (idx < mod->del_len && !strcmp(mod->del[idx], name)) { + return 1; + } + } + + err = reftable_table_read_ref(&mod->tab, name, &ref); + reftable_ref_record_release(&ref); + return err; +} + +static void modification_release(struct modification *mod) +{ + /* don't delete the strings themselves; they're owned by ref records. + */ + FREE_AND_NULL(mod->add); + FREE_AND_NULL(mod->del); + mod->add_len = 0; + mod->del_len = 0; +} + +static int modification_has_ref_with_prefix(struct modification *mod, + const char *prefix) +{ + struct reftable_iterator it = { NULL }; + struct reftable_ref_record ref = { NULL }; + int err = 0; + + if (mod->add_len > 0) { + struct find_arg arg = { + .names = mod->add, + .want = prefix, + }; + int idx = binsearch(mod->add_len, find_name, &arg); + if (idx < mod->add_len && + !strncmp(prefix, mod->add[idx], strlen(prefix))) + goto done; + } + err = reftable_table_seek_ref(&mod->tab, &it, prefix); + if (err) + goto done; + + while (1) { + err = reftable_iterator_next_ref(&it, &ref); + if (err) + goto done; + + if (mod->del_len > 0) { + struct find_arg arg = { + .names = mod->del, + .want = ref.refname, + }; + int idx = binsearch(mod->del_len, find_name, &arg); + if (idx < mod->del_len && + !strcmp(ref.refname, mod->del[idx])) { + continue; + } + } + + if (strncmp(ref.refname, prefix, strlen(prefix))) { + err = 1; + goto done; + } + err = 0; + goto done; + } + +done: + reftable_ref_record_release(&ref); + reftable_iterator_destroy(&it); + return err; +} + +static int validate_refname(const char *name) +{ + while (1) { + char *next = strchr(name, '/'); + if (!*name) { + return REFTABLE_REFNAME_ERROR; + } + if (!next) { + return 0; + } + if (next - name == 0 || (next - name == 1 && *name == '.') || + (next - name == 2 && name[0] == '.' && name[1] == '.')) + return REFTABLE_REFNAME_ERROR; + name = next + 1; + } + return 0; +} + +int validate_ref_record_addition(struct reftable_table tab, + struct reftable_ref_record *recs, size_t sz) +{ + struct modification mod = { + .tab = tab, + .add = reftable_calloc(sizeof(char *) * sz), + .del = reftable_calloc(sizeof(char *) * sz), + }; + int i = 0; + int err = 0; + for (; i < sz; i++) { + if (reftable_ref_record_is_deletion(&recs[i])) { + mod.del[mod.del_len++] = recs[i].refname; + } else { + mod.add[mod.add_len++] = recs[i].refname; + } + } + + err = modification_validate(&mod); + modification_release(&mod); + return err; +} + +static void strbuf_trim_component(struct strbuf *sl) +{ + while (sl->len > 0) { + int is_slash = (sl->buf[sl->len - 1] == '/'); + strbuf_setlen(sl, sl->len - 1); + if (is_slash) + break; + } +} + +int modification_validate(struct modification *mod) +{ + struct strbuf slashed = STRBUF_INIT; + int err = 0; + int i = 0; + for (; i < mod->add_len; i++) { + err = validate_refname(mod->add[i]); + if (err) + goto done; + strbuf_reset(&slashed); + strbuf_addstr(&slashed, mod->add[i]); + strbuf_addstr(&slashed, "/"); + + err = modification_has_ref_with_prefix(mod, slashed.buf); + if (err == 0) { + err = REFTABLE_NAME_CONFLICT; + goto done; + } + if (err < 0) + goto done; + + strbuf_reset(&slashed); + strbuf_addstr(&slashed, mod->add[i]); + while (slashed.len) { + strbuf_trim_component(&slashed); + err = modification_has_ref(mod, slashed.buf); + if (err == 0) { + err = REFTABLE_NAME_CONFLICT; + goto done; + } + if (err < 0) + goto done; + } + } + err = 0; +done: + strbuf_release(&slashed); + return err; +} diff --git a/reftable/refname.h b/reftable/refname.h new file mode 100644 index 0000000000..a24b40fcb4 --- /dev/null +++ b/reftable/refname.h @@ -0,0 +1,29 @@ +/* + Copyright 2020 Google LLC + + Use of this source code is governed by a BSD-style + license that can be found in the LICENSE file or at + https://developers.google.com/open-source/licenses/bsd +*/ +#ifndef REFNAME_H +#define REFNAME_H + +#include "reftable-record.h" +#include "reftable-generic.h" + +struct modification { + struct reftable_table tab; + + char **add; + size_t add_len; + + char **del; + size_t del_len; +}; + +int validate_ref_record_addition(struct reftable_table tab, + struct reftable_ref_record *recs, size_t sz); + +int modification_validate(struct modification *mod); + +#endif diff --git a/reftable/refname_test.c b/reftable/refname_test.c new file mode 100644 index 0000000000..8645cd93bb --- /dev/null +++ b/reftable/refname_test.c @@ -0,0 +1,102 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "basics.h" +#include "block.h" +#include "blocksource.h" +#include "constants.h" +#include "reader.h" +#include "record.h" +#include "refname.h" +#include "reftable-error.h" +#include "reftable-writer.h" +#include "system.h" + +#include "test_framework.h" +#include "reftable-tests.h" + +struct testcase { + char *add; + char *del; + int error_code; +}; + +static void test_conflict(void) +{ + struct reftable_write_options opts = { 0 }; + struct strbuf buf = STRBUF_INIT; + struct reftable_writer *w = + reftable_new_writer(&strbuf_add_void, &buf, &opts); + struct reftable_ref_record rec = { + .refname = "a/b", + .value_type = REFTABLE_REF_SYMREF, + .value.symref = "destination", /* make sure it's not a symref. + */ + .update_index = 1, + }; + int err; + int i; + struct reftable_block_source source = { NULL }; + struct reftable_reader *rd = NULL; + struct reftable_table tab = { NULL }; + struct testcase cases[] = { + { "a/b/c", NULL, REFTABLE_NAME_CONFLICT }, + { "b", NULL, 0 }, + { "a", NULL, REFTABLE_NAME_CONFLICT }, + { "a", "a/b", 0 }, + + { "p/", NULL, REFTABLE_REFNAME_ERROR }, + { "p//q", NULL, REFTABLE_REFNAME_ERROR }, + { "p/./q", NULL, REFTABLE_REFNAME_ERROR }, + { "p/../q", NULL, REFTABLE_REFNAME_ERROR }, + + { "a/b/c", "a/b", 0 }, + { NULL, "a//b", 0 }, + }; + reftable_writer_set_limits(w, 1, 1); + + err = reftable_writer_add_ref(w, &rec); + EXPECT_ERR(err); + + err = reftable_writer_close(w); + EXPECT_ERR(err); + reftable_writer_free(w); + + block_source_from_strbuf(&source, &buf); + err = reftable_new_reader(&rd, &source, "filename"); + EXPECT_ERR(err); + + reftable_table_from_reader(&tab, rd); + + for (i = 0; i < ARRAY_SIZE(cases); i++) { + struct modification mod = { + .tab = tab, + }; + + if (cases[i].add) { + mod.add = &cases[i].add; + mod.add_len = 1; + } + if (cases[i].del) { + mod.del = &cases[i].del; + mod.del_len = 1; + } + + err = modification_validate(&mod); + EXPECT(err == cases[i].error_code); + } + + reftable_reader_free(rd); + strbuf_release(&buf); +} + +int refname_test_main(int argc, const char *argv[]) +{ + RUN_TEST(test_conflict); + return 0; +} diff --git a/reftable/reftable-blocksource.h b/reftable/reftable-blocksource.h new file mode 100644 index 0000000000..5aa3990a57 --- /dev/null +++ b/reftable/reftable-blocksource.h @@ -0,0 +1,49 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef REFTABLE_BLOCKSOURCE_H +#define REFTABLE_BLOCKSOURCE_H + +#include <stdint.h> + +/* block_source is a generic wrapper for a seekable readable file. + */ +struct reftable_block_source { + struct reftable_block_source_vtable *ops; + void *arg; +}; + +/* a contiguous segment of bytes. It keeps track of its generating block_source + * so it can return itself into the pool. */ +struct reftable_block { + uint8_t *data; + int len; + struct reftable_block_source source; +}; + +/* block_source_vtable are the operations that make up block_source */ +struct reftable_block_source_vtable { + /* returns the size of a block source */ + uint64_t (*size)(void *source); + + /* reads a segment from the block source. It is an error to read + beyond the end of the block */ + int (*read_block)(void *source, struct reftable_block *dest, + uint64_t off, uint32_t size); + /* mark the block as read; may return the data back to malloc */ + void (*return_block)(void *source, struct reftable_block *blockp); + + /* release all resources associated with the block source */ + void (*close)(void *source); +}; + +/* opens a file on the file system as a block_source */ +int reftable_block_source_from_file(struct reftable_block_source *block_src, + const char *name); + +#endif diff --git a/reftable/reftable-error.h b/reftable/reftable-error.h new file mode 100644 index 0000000000..6f89bedf1a --- /dev/null +++ b/reftable/reftable-error.h @@ -0,0 +1,62 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef REFTABLE_ERROR_H +#define REFTABLE_ERROR_H + +/* + * Errors in reftable calls are signaled with negative integer return values. 0 + * means success. + */ +enum reftable_error { + /* Unexpected file system behavior */ + REFTABLE_IO_ERROR = -2, + + /* Format inconsistency on reading data */ + REFTABLE_FORMAT_ERROR = -3, + + /* File does not exist. Returned from block_source_from_file(), because + * it needs special handling in stack. + */ + REFTABLE_NOT_EXIST_ERROR = -4, + + /* Trying to write out-of-date data. */ + REFTABLE_LOCK_ERROR = -5, + + /* Misuse of the API: + * - on writing a record with NULL refname. + * - on writing a reftable_ref_record outside the table limits + * - on writing a ref or log record before the stack's + * next_update_inde*x + * - on writing a log record with multiline message with + * exact_log_message unset + * - on reading a reftable_ref_record from log iterator, or vice versa. + * + * When a call misuses the API, the internal state of the library is + * kept unchanged. + */ + REFTABLE_API_ERROR = -6, + + /* Decompression error */ + REFTABLE_ZLIB_ERROR = -7, + + /* Wrote a table without blocks. */ + REFTABLE_EMPTY_TABLE_ERROR = -8, + + /* Dir/file conflict. */ + REFTABLE_NAME_CONFLICT = -9, + + /* Invalid ref name. */ + REFTABLE_REFNAME_ERROR = -10, +}; + +/* convert the numeric error code to a string. The string should not be + * deallocated. */ +const char *reftable_error_str(int err); + +#endif diff --git a/reftable/reftable-generic.h b/reftable/reftable-generic.h new file mode 100644 index 0000000000..d239751a77 --- /dev/null +++ b/reftable/reftable-generic.h @@ -0,0 +1,47 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef REFTABLE_GENERIC_H +#define REFTABLE_GENERIC_H + +#include "reftable-iterator.h" + +struct reftable_table_vtable; + +/* + * Provides a unified API for reading tables, either merged tables, or single + * readers. */ +struct reftable_table { + struct reftable_table_vtable *ops; + void *table_arg; +}; + +int reftable_table_seek_log(struct reftable_table *tab, + struct reftable_iterator *it, const char *name); + +int reftable_table_seek_ref(struct reftable_table *tab, + struct reftable_iterator *it, const char *name); + +/* returns the hash ID from a generic reftable_table */ +uint32_t reftable_table_hash_id(struct reftable_table *tab); + +/* returns the max update_index covered by this table. */ +uint64_t reftable_table_max_update_index(struct reftable_table *tab); + +/* returns the min update_index covered by this table. */ +uint64_t reftable_table_min_update_index(struct reftable_table *tab); + +/* convenience function to read a single ref. Returns < 0 for error, 0 + for success, and 1 if ref not found. */ +int reftable_table_read_ref(struct reftable_table *tab, const char *name, + struct reftable_ref_record *ref); + +/* dump table contents onto stdout for debugging */ +int reftable_table_print(struct reftable_table *tab); + +#endif diff --git a/reftable/reftable-iterator.h b/reftable/reftable-iterator.h new file mode 100644 index 0000000000..d3eee7af35 --- /dev/null +++ b/reftable/reftable-iterator.h @@ -0,0 +1,39 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef REFTABLE_ITERATOR_H +#define REFTABLE_ITERATOR_H + +#include "reftable-record.h" + +struct reftable_iterator_vtable; + +/* iterator is the generic interface for walking over data stored in a + * reftable. + */ +struct reftable_iterator { + struct reftable_iterator_vtable *ops; + void *iter_arg; +}; + +/* reads the next reftable_ref_record. Returns < 0 for error, 0 for OK and > 0: + * end of iteration. + */ +int reftable_iterator_next_ref(struct reftable_iterator *it, + struct reftable_ref_record *ref); + +/* reads the next reftable_log_record. Returns < 0 for error, 0 for OK and > 0: + * end of iteration. + */ +int reftable_iterator_next_log(struct reftable_iterator *it, + struct reftable_log_record *log); + +/* releases resources associated with an iterator. */ +void reftable_iterator_destroy(struct reftable_iterator *it); + +#endif diff --git a/reftable/reftable-malloc.h b/reftable/reftable-malloc.h new file mode 100644 index 0000000000..5f2185f1f3 --- /dev/null +++ b/reftable/reftable-malloc.h @@ -0,0 +1,18 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef REFTABLE_H +#define REFTABLE_H + +#include <stddef.h> + +/* Overrides the functions to use for memory management. */ +void reftable_set_alloc(void *(*malloc)(size_t), + void *(*realloc)(void *, size_t), void (*free)(void *)); + +#endif diff --git a/reftable/reftable-merged.h b/reftable/reftable-merged.h new file mode 100644 index 0000000000..1a6d16915a --- /dev/null +++ b/reftable/reftable-merged.h @@ -0,0 +1,72 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef REFTABLE_MERGED_H +#define REFTABLE_MERGED_H + +#include "reftable-iterator.h" + +/* + * Merged tables + * + * A ref database kept in a sequence of table files. The merged_table presents a + * unified view to reading (seeking, iterating) a sequence of immutable tables. + * + * The merged tables are on purpose kept disconnected from their actual storage + * (eg. files on disk), because it is useful to merge tables aren't files. For + * example, the per-workspace and global ref namespace can be implemented as a + * merged table of two stacks of file-backed reftables. + */ + +/* A merged table is implements seeking/iterating over a stack of tables. */ +struct reftable_merged_table; + +/* A generic reftable; see below. */ +struct reftable_table; + +/* reftable_new_merged_table creates a new merged table. It takes ownership of + the stack array. +*/ +int reftable_new_merged_table(struct reftable_merged_table **dest, + struct reftable_table *stack, int n, + uint32_t hash_id); + +/* returns an iterator positioned just before 'name' */ +int reftable_merged_table_seek_ref(struct reftable_merged_table *mt, + struct reftable_iterator *it, + const char *name); + +/* returns an iterator for log entry, at given update_index */ +int reftable_merged_table_seek_log_at(struct reftable_merged_table *mt, + struct reftable_iterator *it, + const char *name, uint64_t update_index); + +/* like reftable_merged_table_seek_log_at but look for the newest entry. */ +int reftable_merged_table_seek_log(struct reftable_merged_table *mt, + struct reftable_iterator *it, + const char *name); + +/* returns the max update_index covered by this merged table. */ +uint64_t +reftable_merged_table_max_update_index(struct reftable_merged_table *mt); + +/* returns the min update_index covered by this merged table. */ +uint64_t +reftable_merged_table_min_update_index(struct reftable_merged_table *mt); + +/* releases memory for the merged_table */ +void reftable_merged_table_free(struct reftable_merged_table *m); + +/* return the hash ID of the merged table. */ +uint32_t reftable_merged_table_hash_id(struct reftable_merged_table *m); + +/* create a generic table from reftable_merged_table */ +void reftable_table_from_merged_table(struct reftable_table *tab, + struct reftable_merged_table *table); + +#endif diff --git a/reftable/reftable-reader.h b/reftable/reftable-reader.h new file mode 100644 index 0000000000..4a4bc2fdf8 --- /dev/null +++ b/reftable/reftable-reader.h @@ -0,0 +1,101 @@ +/* + Copyright 2020 Google LLC + + Use of this source code is governed by a BSD-style + license that can be found in the LICENSE file or at + https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef REFTABLE_READER_H +#define REFTABLE_READER_H + +#include "reftable-iterator.h" +#include "reftable-blocksource.h" + +/* + * Reading single tables + * + * The follow routines are for reading single files. For an + * application-level interface, skip ahead to struct + * reftable_merged_table and struct reftable_stack. + */ + +/* The reader struct is a handle to an open reftable file. */ +struct reftable_reader; + +/* Generic table. */ +struct reftable_table; + +/* reftable_new_reader opens a reftable for reading. If successful, + * returns 0 code and sets pp. The name is used for creating a + * stack. Typically, it is the basename of the file. The block source + * `src` is owned by the reader, and is closed on calling + * reftable_reader_destroy(). On error, the block source `src` is + * closed as well. + */ +int reftable_new_reader(struct reftable_reader **pp, + struct reftable_block_source *src, const char *name); + +/* reftable_reader_seek_ref returns an iterator where 'name' would be inserted + in the table. To seek to the start of the table, use name = "". + + example: + + struct reftable_reader *r = NULL; + int err = reftable_new_reader(&r, &src, "filename"); + if (err < 0) { ... } + struct reftable_iterator it = {0}; + err = reftable_reader_seek_ref(r, &it, "refs/heads/master"); + if (err < 0) { ... } + struct reftable_ref_record ref = {0}; + while (1) { + err = reftable_iterator_next_ref(&it, &ref); + if (err > 0) { + break; + } + if (err < 0) { + ..error handling.. + } + ..found.. + } + reftable_iterator_destroy(&it); + reftable_ref_record_release(&ref); +*/ +int reftable_reader_seek_ref(struct reftable_reader *r, + struct reftable_iterator *it, const char *name); + +/* returns the hash ID used in this table. */ +uint32_t reftable_reader_hash_id(struct reftable_reader *r); + +/* seek to logs for the given name, older than update_index. To seek to the + start of the table, use name = "". +*/ +int reftable_reader_seek_log_at(struct reftable_reader *r, + struct reftable_iterator *it, const char *name, + uint64_t update_index); + +/* seek to newest log entry for given name. */ +int reftable_reader_seek_log(struct reftable_reader *r, + struct reftable_iterator *it, const char *name); + +/* closes and deallocates a reader. */ +void reftable_reader_free(struct reftable_reader *); + +/* return an iterator for the refs pointing to `oid`. */ +int reftable_reader_refs_for(struct reftable_reader *r, + struct reftable_iterator *it, uint8_t *oid); + +/* return the max_update_index for a table */ +uint64_t reftable_reader_max_update_index(struct reftable_reader *r); + +/* return the min_update_index for a table */ +uint64_t reftable_reader_min_update_index(struct reftable_reader *r); + +/* creates a generic table from a file reader. */ +void reftable_table_from_reader(struct reftable_table *tab, + struct reftable_reader *reader); + +/* print table onto stdout for debugging. */ +int reftable_reader_print_file(const char *tablename); + +#endif diff --git a/reftable/reftable-record.h b/reftable/reftable-record.h new file mode 100644 index 0000000000..5370d2288c --- /dev/null +++ b/reftable/reftable-record.h @@ -0,0 +1,114 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef REFTABLE_RECORD_H +#define REFTABLE_RECORD_H + +#include <stdint.h> + +/* + * Basic data types + * + * Reftables store the state of each ref in struct reftable_ref_record, and they + * store a sequence of reflog updates in struct reftable_log_record. + */ + +/* reftable_ref_record holds a ref database entry target_value */ +struct reftable_ref_record { + char *refname; /* Name of the ref, malloced. */ + uint64_t update_index; /* Logical timestamp at which this value is + * written */ + + enum { + /* tombstone to hide deletions from earlier tables */ + REFTABLE_REF_DELETION = 0x0, + + /* a simple ref */ + REFTABLE_REF_VAL1 = 0x1, + /* a tag, plus its peeled hash */ + REFTABLE_REF_VAL2 = 0x2, + + /* a symbolic reference */ + REFTABLE_REF_SYMREF = 0x3, +#define REFTABLE_NR_REF_VALUETYPES 4 + } value_type; + union { + uint8_t *val1; /* malloced hash. */ + struct { + uint8_t *value; /* first value, malloced hash */ + uint8_t *target_value; /* second value, malloced hash */ + } val2; + char *symref; /* referent, malloced 0-terminated string */ + } value; +}; + +/* Returns the first hash, or NULL if `rec` is not of type + * REFTABLE_REF_VAL1 or REFTABLE_REF_VAL2. */ +uint8_t *reftable_ref_record_val1(struct reftable_ref_record *rec); + +/* Returns the second hash, or NULL if `rec` is not of type + * REFTABLE_REF_VAL2. */ +uint8_t *reftable_ref_record_val2(struct reftable_ref_record *rec); + +/* returns whether 'ref' represents a deletion */ +int reftable_ref_record_is_deletion(const struct reftable_ref_record *ref); + +/* prints a reftable_ref_record onto stdout. Useful for debugging. */ +void reftable_ref_record_print(struct reftable_ref_record *ref, + uint32_t hash_id); + +/* frees and nulls all pointer values inside `ref`. */ +void reftable_ref_record_release(struct reftable_ref_record *ref); + +/* returns whether two reftable_ref_records are the same. Useful for testing. */ +int reftable_ref_record_equal(struct reftable_ref_record *a, + struct reftable_ref_record *b, int hash_size); + +/* reftable_log_record holds a reflog entry */ +struct reftable_log_record { + char *refname; + uint64_t update_index; /* logical timestamp of a transactional update. + */ + + enum { + /* tombstone to hide deletions from earlier tables */ + REFTABLE_LOG_DELETION = 0x0, + + /* a simple update */ + REFTABLE_LOG_UPDATE = 0x1, +#define REFTABLE_NR_LOG_VALUETYPES 2 + } value_type; + + union { + struct { + uint8_t *new_hash; + uint8_t *old_hash; + char *name; + char *email; + uint64_t time; + int16_t tz_offset; + char *message; + } update; + } value; +}; + +/* returns whether 'ref' represents the deletion of a log record. */ +int reftable_log_record_is_deletion(const struct reftable_log_record *log); + +/* frees and nulls all pointer values. */ +void reftable_log_record_release(struct reftable_log_record *log); + +/* returns whether two records are equal. Useful for testing. */ +int reftable_log_record_equal(struct reftable_log_record *a, + struct reftable_log_record *b, int hash_size); + +/* dumps a reftable_log_record on stdout, for debugging/testing. */ +void reftable_log_record_print(struct reftable_log_record *log, + uint32_t hash_id); + +#endif diff --git a/reftable/reftable-stack.h b/reftable/reftable-stack.h new file mode 100644 index 0000000000..1b602dda58 --- /dev/null +++ b/reftable/reftable-stack.h @@ -0,0 +1,128 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef REFTABLE_STACK_H +#define REFTABLE_STACK_H + +#include "reftable-writer.h" + +/* + * The stack presents an interface to a mutable sequence of reftables. + + * A stack can be mutated by pushing a table to the top of the stack. + + * The reftable_stack automatically compacts files on disk to ensure good + * amortized performance. + * + * For windows and other platforms that cannot have open files as rename + * destinations, concurrent access from multiple processes needs the rand() + * random seed to be randomized. + */ +struct reftable_stack; + +/* open a new reftable stack. The tables along with the table list will be + * stored in 'dir'. Typically, this should be .git/reftables. + */ +int reftable_new_stack(struct reftable_stack **dest, const char *dir, + struct reftable_write_options config); + +/* returns the update_index at which a next table should be written. */ +uint64_t reftable_stack_next_update_index(struct reftable_stack *st); + +/* holds a transaction to add tables at the top of a stack. */ +struct reftable_addition; + +/* + * returns a new transaction to add reftables to the given stack. As a side + * effect, the ref database is locked. + */ +int reftable_stack_new_addition(struct reftable_addition **dest, + struct reftable_stack *st); + +/* Adds a reftable to transaction. */ +int reftable_addition_add(struct reftable_addition *add, + int (*write_table)(struct reftable_writer *wr, + void *arg), + void *arg); + +/* Commits the transaction, releasing the lock. After calling this, + * reftable_addition_destroy should still be called. + */ +int reftable_addition_commit(struct reftable_addition *add); + +/* Release all non-committed data from the transaction, and deallocate the + * transaction. Releases the lock if held. */ +void reftable_addition_destroy(struct reftable_addition *add); + +/* add a new table to the stack. The write_table function must call + * reftable_writer_set_limits, add refs and return an error value. */ +int reftable_stack_add(struct reftable_stack *st, + int (*write_table)(struct reftable_writer *wr, + void *write_arg), + void *write_arg); + +/* returns the merged_table for seeking. This table is valid until the + * next write or reload, and should not be closed or deleted. + */ +struct reftable_merged_table * +reftable_stack_merged_table(struct reftable_stack *st); + +/* frees all resources associated with the stack. */ +void reftable_stack_destroy(struct reftable_stack *st); + +/* Reloads the stack if necessary. This is very cheap to run if the stack was up + * to date */ +int reftable_stack_reload(struct reftable_stack *st); + +/* Policy for expiring reflog entries. */ +struct reftable_log_expiry_config { + /* Drop entries older than this timestamp */ + uint64_t time; + + /* Drop older entries */ + uint64_t min_update_index; +}; + +/* compacts all reftables into a giant table. Expire reflog entries if config is + * non-NULL */ +int reftable_stack_compact_all(struct reftable_stack *st, + struct reftable_log_expiry_config *config); + +/* heuristically compact unbalanced table stack. */ +int reftable_stack_auto_compact(struct reftable_stack *st); + +/* delete stale .ref tables. */ +int reftable_stack_clean(struct reftable_stack *st); + +/* convenience function to read a single ref. Returns < 0 for error, 0 for + * success, and 1 if ref not found. */ +int reftable_stack_read_ref(struct reftable_stack *st, const char *refname, + struct reftable_ref_record *ref); + +/* convenience function to read a single log. Returns < 0 for error, 0 for + * success, and 1 if ref not found. */ +int reftable_stack_read_log(struct reftable_stack *st, const char *refname, + struct reftable_log_record *log); + +/* statistics on past compactions. */ +struct reftable_compaction_stats { + uint64_t bytes; /* total number of bytes written */ + uint64_t entries_written; /* total number of entries written, including + failures. */ + int attempts; /* how often we tried to compact */ + int failures; /* failures happen on concurrent updates */ +}; + +/* return statistics for compaction up till now. */ +struct reftable_compaction_stats * +reftable_stack_compaction_stats(struct reftable_stack *st); + +/* print the entire stack represented by the directory */ +int reftable_stack_print_directory(const char *stackdir, uint32_t hash_id); + +#endif diff --git a/reftable/reftable-tests.h b/reftable/reftable-tests.h new file mode 100644 index 0000000000..0019cbcfa4 --- /dev/null +++ b/reftable/reftable-tests.h @@ -0,0 +1,23 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef REFTABLE_TESTS_H +#define REFTABLE_TESTS_H + +int basics_test_main(int argc, const char **argv); +int block_test_main(int argc, const char **argv); +int merged_test_main(int argc, const char **argv); +int pq_test_main(int argc, const char **argv); +int record_test_main(int argc, const char **argv); +int refname_test_main(int argc, const char **argv); +int readwrite_test_main(int argc, const char **argv); +int stack_test_main(int argc, const char **argv); +int tree_test_main(int argc, const char **argv); +int reftable_dump_main(int argc, char *const *argv); + +#endif diff --git a/reftable/reftable-writer.h b/reftable/reftable-writer.h new file mode 100644 index 0000000000..af36462ced --- /dev/null +++ b/reftable/reftable-writer.h @@ -0,0 +1,148 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef REFTABLE_WRITER_H +#define REFTABLE_WRITER_H + +#include "reftable-record.h" + +#include <stdint.h> +#include <unistd.h> /* ssize_t */ + +/* Writing single reftables */ + +/* reftable_write_options sets options for writing a single reftable. */ +struct reftable_write_options { + /* boolean: do not pad out blocks to block size. */ + unsigned unpadded : 1; + + /* the blocksize. Should be less than 2^24. */ + uint32_t block_size; + + /* boolean: do not generate a SHA1 => ref index. */ + unsigned skip_index_objects : 1; + + /* how often to write complete keys in each block. */ + int restart_interval; + + /* 4-byte identifier ("sha1", "s256") of the hash. + * Defaults to SHA1 if unset + */ + uint32_t hash_id; + + /* boolean: do not check ref names for validity or dir/file conflicts. + */ + unsigned skip_name_check : 1; + + /* boolean: copy log messages exactly. If unset, check that the message + * is a single line, and add '\n' if missing. + */ + unsigned exact_log_message : 1; +}; + +/* reftable_block_stats holds statistics for a single block type */ +struct reftable_block_stats { + /* total number of entries written */ + int entries; + /* total number of key restarts */ + int restarts; + /* total number of blocks */ + int blocks; + /* total number of index blocks */ + int index_blocks; + /* depth of the index */ + int max_index_level; + + /* offset of the first block for this type */ + uint64_t offset; + /* offset of the top level index block for this type, or 0 if not + * present */ + uint64_t index_offset; +}; + +/* stats holds overall statistics for a single reftable */ +struct reftable_stats { + /* total number of blocks written. */ + int blocks; + /* stats for ref data */ + struct reftable_block_stats ref_stats; + /* stats for the SHA1 to ref map. */ + struct reftable_block_stats obj_stats; + /* stats for index blocks */ + struct reftable_block_stats idx_stats; + /* stats for log blocks */ + struct reftable_block_stats log_stats; + + /* disambiguation length of shortened object IDs. */ + int object_id_len; +}; + +/* reftable_new_writer creates a new writer */ +struct reftable_writer * +reftable_new_writer(ssize_t (*writer_func)(void *, const void *, size_t), + void *writer_arg, struct reftable_write_options *opts); + +/* Set the range of update indices for the records we will add. When writing a + table into a stack, the min should be at least + reftable_stack_next_update_index(), or REFTABLE_API_ERROR is returned. + + For transactional updates to a stack, typically min==max, and the + update_index can be obtained by inspeciting the stack. When converting an + existing ref database into a single reftable, this would be a range of + update-index timestamps. + */ +void reftable_writer_set_limits(struct reftable_writer *w, uint64_t min, + uint64_t max); + +/* + Add a reftable_ref_record. The record should have names that come after + already added records. + + The update_index must be within the limits set by + reftable_writer_set_limits(), or REFTABLE_API_ERROR is returned. It is an + REFTABLE_API_ERROR error to write a ref record after a log record. +*/ +int reftable_writer_add_ref(struct reftable_writer *w, + struct reftable_ref_record *ref); + +/* + Convenience function to add multiple reftable_ref_records; the function sorts + the records before adding them, reordering the records array passed in. +*/ +int reftable_writer_add_refs(struct reftable_writer *w, + struct reftable_ref_record *refs, int n); + +/* + adds reftable_log_records. Log records are keyed by (refname, decreasing + update_index). The key for the record added must come after the already added + log records. +*/ +int reftable_writer_add_log(struct reftable_writer *w, + struct reftable_log_record *log); + +/* + Convenience function to add multiple reftable_log_records; the function sorts + the records before adding them, reordering records array passed in. +*/ +int reftable_writer_add_logs(struct reftable_writer *w, + struct reftable_log_record *logs, int n); + +/* reftable_writer_close finalizes the reftable. The writer is retained so + * statistics can be inspected. */ +int reftable_writer_close(struct reftable_writer *w); + +/* writer_stats returns the statistics on the reftable being written. + + This struct becomes invalid when the writer is freed. + */ +const struct reftable_stats *writer_stats(struct reftable_writer *w); + +/* reftable_writer_free deallocates memory for the writer */ +void reftable_writer_free(struct reftable_writer *w); + +#endif diff --git a/reftable/reftable.c b/reftable/reftable.c new file mode 100644 index 0000000000..0e4607a7cd --- /dev/null +++ b/reftable/reftable.c @@ -0,0 +1,115 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "basics.h" +#include "record.h" +#include "generic.h" +#include "reftable-iterator.h" +#include "reftable-generic.h" + +int reftable_table_seek_ref(struct reftable_table *tab, + struct reftable_iterator *it, const char *name) +{ + struct reftable_ref_record ref = { + .refname = (char *)name, + }; + struct reftable_record rec = { NULL }; + reftable_record_from_ref(&rec, &ref); + return tab->ops->seek_record(tab->table_arg, it, &rec); +} + +int reftable_table_read_ref(struct reftable_table *tab, const char *name, + struct reftable_ref_record *ref) +{ + struct reftable_iterator it = { NULL }; + int err = reftable_table_seek_ref(tab, &it, name); + if (err) + goto done; + + err = reftable_iterator_next_ref(&it, ref); + if (err) + goto done; + + if (strcmp(ref->refname, name) || + reftable_ref_record_is_deletion(ref)) { + reftable_ref_record_release(ref); + err = 1; + goto done; + } + +done: + reftable_iterator_destroy(&it); + return err; +} + +uint64_t reftable_table_max_update_index(struct reftable_table *tab) +{ + return tab->ops->max_update_index(tab->table_arg); +} + +uint64_t reftable_table_min_update_index(struct reftable_table *tab) +{ + return tab->ops->min_update_index(tab->table_arg); +} + +uint32_t reftable_table_hash_id(struct reftable_table *tab) +{ + return tab->ops->hash_id(tab->table_arg); +} + +void reftable_iterator_destroy(struct reftable_iterator *it) +{ + if (!it->ops) { + return; + } + it->ops->close(it->iter_arg); + it->ops = NULL; + FREE_AND_NULL(it->iter_arg); +} + +int reftable_iterator_next_ref(struct reftable_iterator *it, + struct reftable_ref_record *ref) +{ + struct reftable_record rec = { NULL }; + reftable_record_from_ref(&rec, ref); + return iterator_next(it, &rec); +} + +int reftable_iterator_next_log(struct reftable_iterator *it, + struct reftable_log_record *log) +{ + struct reftable_record rec = { NULL }; + reftable_record_from_log(&rec, log); + return iterator_next(it, &rec); +} + +int iterator_next(struct reftable_iterator *it, struct reftable_record *rec) +{ + return it->ops->next(it->iter_arg, rec); +} + +static int empty_iterator_next(void *arg, struct reftable_record *rec) +{ + return 1; +} + +static void empty_iterator_close(void *arg) +{ +} + +static struct reftable_iterator_vtable empty_vtable = { + .next = &empty_iterator_next, + .close = &empty_iterator_close, +}; + +void iterator_set_empty(struct reftable_iterator *it) +{ + assert(!it->ops); + it->iter_arg = NULL; + it->ops = &empty_vtable; +} diff --git a/reftable/stack.c b/reftable/stack.c new file mode 100644 index 0000000000..df5021ebf0 --- /dev/null +++ b/reftable/stack.c @@ -0,0 +1,1396 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "stack.h" + +#include "system.h" +#include "merged.h" +#include "reader.h" +#include "refname.h" +#include "reftable-error.h" +#include "reftable-record.h" +#include "reftable-merged.h" +#include "writer.h" + +static int stack_try_add(struct reftable_stack *st, + int (*write_table)(struct reftable_writer *wr, + void *arg), + void *arg); +static int stack_write_compact(struct reftable_stack *st, + struct reftable_writer *wr, int first, int last, + struct reftable_log_expiry_config *config); +static int stack_check_addition(struct reftable_stack *st, + const char *new_tab_name); +static void reftable_addition_close(struct reftable_addition *add); +static int reftable_stack_reload_maybe_reuse(struct reftable_stack *st, + int reuse_open); + +static void stack_filename(struct strbuf *dest, struct reftable_stack *st, + const char *name) +{ + strbuf_reset(dest); + strbuf_addstr(dest, st->reftable_dir); + strbuf_addstr(dest, "/"); + strbuf_addstr(dest, name); +} + +static ssize_t reftable_fd_write(void *arg, const void *data, size_t sz) +{ + int *fdp = (int *)arg; + return write(*fdp, data, sz); +} + +int reftable_new_stack(struct reftable_stack **dest, const char *dir, + struct reftable_write_options config) +{ + struct reftable_stack *p = + reftable_calloc(sizeof(struct reftable_stack)); + struct strbuf list_file_name = STRBUF_INIT; + int err = 0; + + if (config.hash_id == 0) { + config.hash_id = GIT_SHA1_FORMAT_ID; + } + + *dest = NULL; + + strbuf_reset(&list_file_name); + strbuf_addstr(&list_file_name, dir); + strbuf_addstr(&list_file_name, "/tables.list"); + + p->list_file = strbuf_detach(&list_file_name, NULL); + p->reftable_dir = xstrdup(dir); + p->config = config; + + err = reftable_stack_reload_maybe_reuse(p, 1); + if (err < 0) { + reftable_stack_destroy(p); + } else { + *dest = p; + } + return err; +} + +static int fd_read_lines(int fd, char ***namesp) +{ + off_t size = lseek(fd, 0, SEEK_END); + char *buf = NULL; + int err = 0; + if (size < 0) { + err = REFTABLE_IO_ERROR; + goto done; + } + err = lseek(fd, 0, SEEK_SET); + if (err < 0) { + err = REFTABLE_IO_ERROR; + goto done; + } + + buf = reftable_malloc(size + 1); + if (read(fd, buf, size) != size) { + err = REFTABLE_IO_ERROR; + goto done; + } + buf[size] = 0; + + parse_names(buf, size, namesp); + +done: + reftable_free(buf); + return err; +} + +int read_lines(const char *filename, char ***namesp) +{ + int fd = open(filename, O_RDONLY); + int err = 0; + if (fd < 0) { + if (errno == ENOENT) { + *namesp = reftable_calloc(sizeof(char *)); + return 0; + } + + return REFTABLE_IO_ERROR; + } + err = fd_read_lines(fd, namesp); + close(fd); + return err; +} + +struct reftable_merged_table * +reftable_stack_merged_table(struct reftable_stack *st) +{ + return st->merged; +} + +static int has_name(char **names, const char *name) +{ + while (*names) { + if (!strcmp(*names, name)) + return 1; + names++; + } + return 0; +} + +/* Close and free the stack */ +void reftable_stack_destroy(struct reftable_stack *st) +{ + char **names = NULL; + int err = 0; + if (st->merged) { + reftable_merged_table_free(st->merged); + st->merged = NULL; + } + + err = read_lines(st->list_file, &names); + if (err < 0) { + FREE_AND_NULL(names); + } + + if (st->readers) { + int i = 0; + struct strbuf filename = STRBUF_INIT; + for (i = 0; i < st->readers_len; i++) { + const char *name = reader_name(st->readers[i]); + strbuf_reset(&filename); + if (names && !has_name(names, name)) { + stack_filename(&filename, st, name); + } + reftable_reader_free(st->readers[i]); + + if (filename.len) { + /* On Windows, can only unlink after closing. */ + unlink(filename.buf); + } + } + strbuf_release(&filename); + st->readers_len = 0; + FREE_AND_NULL(st->readers); + } + FREE_AND_NULL(st->list_file); + FREE_AND_NULL(st->reftable_dir); + reftable_free(st); + free_names(names); +} + +static struct reftable_reader **stack_copy_readers(struct reftable_stack *st, + int cur_len) +{ + struct reftable_reader **cur = + reftable_calloc(sizeof(struct reftable_reader *) * cur_len); + int i = 0; + for (i = 0; i < cur_len; i++) { + cur[i] = st->readers[i]; + } + return cur; +} + +static int reftable_stack_reload_once(struct reftable_stack *st, char **names, + int reuse_open) +{ + int cur_len = !st->merged ? 0 : st->merged->stack_len; + struct reftable_reader **cur = stack_copy_readers(st, cur_len); + int err = 0; + int names_len = names_length(names); + struct reftable_reader **new_readers = + reftable_calloc(sizeof(struct reftable_reader *) * names_len); + struct reftable_table *new_tables = + reftable_calloc(sizeof(struct reftable_table) * names_len); + int new_readers_len = 0; + struct reftable_merged_table *new_merged = NULL; + int i; + + while (*names) { + struct reftable_reader *rd = NULL; + char *name = *names++; + + /* this is linear; we assume compaction keeps the number of + tables under control so this is not quadratic. */ + int j = 0; + for (j = 0; reuse_open && j < cur_len; j++) { + if (cur[j] && 0 == strcmp(cur[j]->name, name)) { + rd = cur[j]; + cur[j] = NULL; + break; + } + } + + if (!rd) { + struct reftable_block_source src = { NULL }; + struct strbuf table_path = STRBUF_INIT; + stack_filename(&table_path, st, name); + + err = reftable_block_source_from_file(&src, + table_path.buf); + strbuf_release(&table_path); + + if (err < 0) + goto done; + + err = reftable_new_reader(&rd, &src, name); + if (err < 0) + goto done; + } + + new_readers[new_readers_len] = rd; + reftable_table_from_reader(&new_tables[new_readers_len], rd); + new_readers_len++; + } + + /* success! */ + err = reftable_new_merged_table(&new_merged, new_tables, + new_readers_len, st->config.hash_id); + if (err < 0) + goto done; + + new_tables = NULL; + st->readers_len = new_readers_len; + if (st->merged) { + merged_table_release(st->merged); + reftable_merged_table_free(st->merged); + } + if (st->readers) { + reftable_free(st->readers); + } + st->readers = new_readers; + new_readers = NULL; + new_readers_len = 0; + + new_merged->suppress_deletions = 1; + st->merged = new_merged; + for (i = 0; i < cur_len; i++) { + if (cur[i]) { + const char *name = reader_name(cur[i]); + struct strbuf filename = STRBUF_INIT; + stack_filename(&filename, st, name); + + reader_close(cur[i]); + reftable_reader_free(cur[i]); + + /* On Windows, can only unlink after closing. */ + unlink(filename.buf); + + strbuf_release(&filename); + } + } + +done: + for (i = 0; i < new_readers_len; i++) { + reader_close(new_readers[i]); + reftable_reader_free(new_readers[i]); + } + reftable_free(new_readers); + reftable_free(new_tables); + reftable_free(cur); + return err; +} + +/* return negative if a before b. */ +static int tv_cmp(struct timeval *a, struct timeval *b) +{ + time_t diff = a->tv_sec - b->tv_sec; + int udiff = a->tv_usec - b->tv_usec; + + if (diff != 0) + return diff; + + return udiff; +} + +static int reftable_stack_reload_maybe_reuse(struct reftable_stack *st, + int reuse_open) +{ + struct timeval deadline = { 0 }; + int err = gettimeofday(&deadline, NULL); + int64_t delay = 0; + int tries = 0; + if (err < 0) + return err; + + deadline.tv_sec += 3; + while (1) { + char **names = NULL; + char **names_after = NULL; + struct timeval now = { 0 }; + int err = gettimeofday(&now, NULL); + int err2 = 0; + if (err < 0) { + return err; + } + + /* Only look at deadlines after the first few times. This + simplifies debugging in GDB */ + tries++; + if (tries > 3 && tv_cmp(&now, &deadline) >= 0) { + break; + } + + err = read_lines(st->list_file, &names); + if (err < 0) { + free_names(names); + return err; + } + err = reftable_stack_reload_once(st, names, reuse_open); + if (err == 0) { + free_names(names); + break; + } + if (err != REFTABLE_NOT_EXIST_ERROR) { + free_names(names); + return err; + } + + /* err == REFTABLE_NOT_EXIST_ERROR can be caused by a concurrent + writer. Check if there was one by checking if the name list + changed. + */ + err2 = read_lines(st->list_file, &names_after); + if (err2 < 0) { + free_names(names); + return err2; + } + + if (names_equal(names_after, names)) { + free_names(names); + free_names(names_after); + return err; + } + free_names(names); + free_names(names_after); + + delay = delay + (delay * rand()) / RAND_MAX + 1; + sleep_millisec(delay); + } + + return 0; +} + +/* -1 = error + 0 = up to date + 1 = changed. */ +static int stack_uptodate(struct reftable_stack *st) +{ + char **names = NULL; + int err = read_lines(st->list_file, &names); + int i = 0; + if (err < 0) + return err; + + for (i = 0; i < st->readers_len; i++) { + if (!names[i]) { + err = 1; + goto done; + } + + if (strcmp(st->readers[i]->name, names[i])) { + err = 1; + goto done; + } + } + + if (names[st->merged->stack_len]) { + err = 1; + goto done; + } + +done: + free_names(names); + return err; +} + +int reftable_stack_reload(struct reftable_stack *st) +{ + int err = stack_uptodate(st); + if (err > 0) + return reftable_stack_reload_maybe_reuse(st, 1); + return err; +} + +int reftable_stack_add(struct reftable_stack *st, + int (*write)(struct reftable_writer *wr, void *arg), + void *arg) +{ + int err = stack_try_add(st, write, arg); + if (err < 0) { + if (err == REFTABLE_LOCK_ERROR) { + /* Ignore error return, we want to propagate + REFTABLE_LOCK_ERROR. + */ + reftable_stack_reload(st); + } + return err; + } + + if (!st->disable_auto_compact) + return reftable_stack_auto_compact(st); + + return 0; +} + +static void format_name(struct strbuf *dest, uint64_t min, uint64_t max) +{ + char buf[100]; + uint32_t rnd = (uint32_t)rand(); + snprintf(buf, sizeof(buf), "0x%012" PRIx64 "-0x%012" PRIx64 "-%08x", + min, max, rnd); + strbuf_reset(dest); + strbuf_addstr(dest, buf); +} + +struct reftable_addition { + int lock_file_fd; + struct strbuf lock_file_name; + struct reftable_stack *stack; + + char **new_tables; + int new_tables_len; + uint64_t next_update_index; +}; + +#define REFTABLE_ADDITION_INIT \ + { \ + .lock_file_name = STRBUF_INIT \ + } + +static int reftable_stack_init_addition(struct reftable_addition *add, + struct reftable_stack *st) +{ + int err = 0; + add->stack = st; + + strbuf_reset(&add->lock_file_name); + strbuf_addstr(&add->lock_file_name, st->list_file); + strbuf_addstr(&add->lock_file_name, ".lock"); + + add->lock_file_fd = open(add->lock_file_name.buf, + O_EXCL | O_CREAT | O_WRONLY, 0644); + if (add->lock_file_fd < 0) { + if (errno == EEXIST) { + err = REFTABLE_LOCK_ERROR; + } else { + err = REFTABLE_IO_ERROR; + } + goto done; + } + err = stack_uptodate(st); + if (err < 0) + goto done; + + if (err > 1) { + err = REFTABLE_LOCK_ERROR; + goto done; + } + + add->next_update_index = reftable_stack_next_update_index(st); +done: + if (err) { + reftable_addition_close(add); + } + return err; +} + +static void reftable_addition_close(struct reftable_addition *add) +{ + int i = 0; + struct strbuf nm = STRBUF_INIT; + for (i = 0; i < add->new_tables_len; i++) { + stack_filename(&nm, add->stack, add->new_tables[i]); + unlink(nm.buf); + reftable_free(add->new_tables[i]); + add->new_tables[i] = NULL; + } + reftable_free(add->new_tables); + add->new_tables = NULL; + add->new_tables_len = 0; + + if (add->lock_file_fd > 0) { + close(add->lock_file_fd); + add->lock_file_fd = 0; + } + if (add->lock_file_name.len > 0) { + unlink(add->lock_file_name.buf); + strbuf_release(&add->lock_file_name); + } + + strbuf_release(&nm); +} + +void reftable_addition_destroy(struct reftable_addition *add) +{ + if (!add) { + return; + } + reftable_addition_close(add); + reftable_free(add); +} + +int reftable_addition_commit(struct reftable_addition *add) +{ + struct strbuf table_list = STRBUF_INIT; + int i = 0; + int err = 0; + if (add->new_tables_len == 0) + goto done; + + for (i = 0; i < add->stack->merged->stack_len; i++) { + strbuf_addstr(&table_list, add->stack->readers[i]->name); + strbuf_addstr(&table_list, "\n"); + } + for (i = 0; i < add->new_tables_len; i++) { + strbuf_addstr(&table_list, add->new_tables[i]); + strbuf_addstr(&table_list, "\n"); + } + + err = write(add->lock_file_fd, table_list.buf, table_list.len); + strbuf_release(&table_list); + if (err < 0) { + err = REFTABLE_IO_ERROR; + goto done; + } + + err = close(add->lock_file_fd); + add->lock_file_fd = 0; + if (err < 0) { + err = REFTABLE_IO_ERROR; + goto done; + } + + err = rename(add->lock_file_name.buf, add->stack->list_file); + if (err < 0) { + err = REFTABLE_IO_ERROR; + goto done; + } + + /* success, no more state to clean up. */ + strbuf_release(&add->lock_file_name); + for (i = 0; i < add->new_tables_len; i++) { + reftable_free(add->new_tables[i]); + } + reftable_free(add->new_tables); + add->new_tables = NULL; + add->new_tables_len = 0; + + err = reftable_stack_reload(add->stack); +done: + reftable_addition_close(add); + return err; +} + +int reftable_stack_new_addition(struct reftable_addition **dest, + struct reftable_stack *st) +{ + int err = 0; + struct reftable_addition empty = REFTABLE_ADDITION_INIT; + *dest = reftable_calloc(sizeof(**dest)); + **dest = empty; + err = reftable_stack_init_addition(*dest, st); + if (err) { + reftable_free(*dest); + *dest = NULL; + } + return err; +} + +static int stack_try_add(struct reftable_stack *st, + int (*write_table)(struct reftable_writer *wr, + void *arg), + void *arg) +{ + struct reftable_addition add = REFTABLE_ADDITION_INIT; + int err = reftable_stack_init_addition(&add, st); + if (err < 0) + goto done; + if (err > 0) { + err = REFTABLE_LOCK_ERROR; + goto done; + } + + err = reftable_addition_add(&add, write_table, arg); + if (err < 0) + goto done; + + err = reftable_addition_commit(&add); +done: + reftable_addition_close(&add); + return err; +} + +int reftable_addition_add(struct reftable_addition *add, + int (*write_table)(struct reftable_writer *wr, + void *arg), + void *arg) +{ + struct strbuf temp_tab_file_name = STRBUF_INIT; + struct strbuf tab_file_name = STRBUF_INIT; + struct strbuf next_name = STRBUF_INIT; + struct reftable_writer *wr = NULL; + int err = 0; + int tab_fd = 0; + + strbuf_reset(&next_name); + format_name(&next_name, add->next_update_index, add->next_update_index); + + stack_filename(&temp_tab_file_name, add->stack, next_name.buf); + strbuf_addstr(&temp_tab_file_name, ".temp.XXXXXX"); + + tab_fd = mkstemp(temp_tab_file_name.buf); + if (tab_fd < 0) { + err = REFTABLE_IO_ERROR; + goto done; + } + + wr = reftable_new_writer(reftable_fd_write, &tab_fd, + &add->stack->config); + err = write_table(wr, arg); + if (err < 0) + goto done; + + err = reftable_writer_close(wr); + if (err == REFTABLE_EMPTY_TABLE_ERROR) { + err = 0; + goto done; + } + if (err < 0) + goto done; + + err = close(tab_fd); + tab_fd = 0; + if (err < 0) { + err = REFTABLE_IO_ERROR; + goto done; + } + + err = stack_check_addition(add->stack, temp_tab_file_name.buf); + if (err < 0) + goto done; + + if (wr->min_update_index < add->next_update_index) { + err = REFTABLE_API_ERROR; + goto done; + } + + format_name(&next_name, wr->min_update_index, wr->max_update_index); + strbuf_addstr(&next_name, ".ref"); + + stack_filename(&tab_file_name, add->stack, next_name.buf); + + /* + On windows, this relies on rand() picking a unique destination name. + Maybe we should do retry loop as well? + */ + err = rename(temp_tab_file_name.buf, tab_file_name.buf); + if (err < 0) { + err = REFTABLE_IO_ERROR; + goto done; + } + + add->new_tables = reftable_realloc(add->new_tables, + sizeof(*add->new_tables) * + (add->new_tables_len + 1)); + add->new_tables[add->new_tables_len] = strbuf_detach(&next_name, NULL); + add->new_tables_len++; +done: + if (tab_fd > 0) { + close(tab_fd); + tab_fd = 0; + } + if (temp_tab_file_name.len > 0) { + unlink(temp_tab_file_name.buf); + } + + strbuf_release(&temp_tab_file_name); + strbuf_release(&tab_file_name); + strbuf_release(&next_name); + reftable_writer_free(wr); + return err; +} + +uint64_t reftable_stack_next_update_index(struct reftable_stack *st) +{ + int sz = st->merged->stack_len; + if (sz > 0) + return reftable_reader_max_update_index(st->readers[sz - 1]) + + 1; + return 1; +} + +static int stack_compact_locked(struct reftable_stack *st, int first, int last, + struct strbuf *temp_tab, + struct reftable_log_expiry_config *config) +{ + struct strbuf next_name = STRBUF_INIT; + int tab_fd = -1; + struct reftable_writer *wr = NULL; + int err = 0; + + format_name(&next_name, + reftable_reader_min_update_index(st->readers[first]), + reftable_reader_max_update_index(st->readers[last])); + + stack_filename(temp_tab, st, next_name.buf); + strbuf_addstr(temp_tab, ".temp.XXXXXX"); + + tab_fd = mkstemp(temp_tab->buf); + wr = reftable_new_writer(reftable_fd_write, &tab_fd, &st->config); + + err = stack_write_compact(st, wr, first, last, config); + if (err < 0) + goto done; + err = reftable_writer_close(wr); + if (err < 0) + goto done; + + err = close(tab_fd); + tab_fd = 0; + +done: + reftable_writer_free(wr); + if (tab_fd > 0) { + close(tab_fd); + tab_fd = 0; + } + if (err != 0 && temp_tab->len > 0) { + unlink(temp_tab->buf); + strbuf_release(temp_tab); + } + strbuf_release(&next_name); + return err; +} + +static int stack_write_compact(struct reftable_stack *st, + struct reftable_writer *wr, int first, int last, + struct reftable_log_expiry_config *config) +{ + int subtabs_len = last - first + 1; + struct reftable_table *subtabs = reftable_calloc( + sizeof(struct reftable_table) * (last - first + 1)); + struct reftable_merged_table *mt = NULL; + int err = 0; + struct reftable_iterator it = { NULL }; + struct reftable_ref_record ref = { NULL }; + struct reftable_log_record log = { NULL }; + + uint64_t entries = 0; + + int i = 0, j = 0; + for (i = first, j = 0; i <= last; i++) { + struct reftable_reader *t = st->readers[i]; + reftable_table_from_reader(&subtabs[j++], t); + st->stats.bytes += t->size; + } + reftable_writer_set_limits(wr, st->readers[first]->min_update_index, + st->readers[last]->max_update_index); + + err = reftable_new_merged_table(&mt, subtabs, subtabs_len, + st->config.hash_id); + if (err < 0) { + reftable_free(subtabs); + goto done; + } + + err = reftable_merged_table_seek_ref(mt, &it, ""); + if (err < 0) + goto done; + + while (1) { + err = reftable_iterator_next_ref(&it, &ref); + if (err > 0) { + err = 0; + break; + } + if (err < 0) { + break; + } + + if (first == 0 && reftable_ref_record_is_deletion(&ref)) { + continue; + } + + err = reftable_writer_add_ref(wr, &ref); + if (err < 0) { + break; + } + entries++; + } + reftable_iterator_destroy(&it); + + err = reftable_merged_table_seek_log(mt, &it, ""); + if (err < 0) + goto done; + + while (1) { + err = reftable_iterator_next_log(&it, &log); + if (err > 0) { + err = 0; + break; + } + if (err < 0) { + break; + } + if (first == 0 && reftable_log_record_is_deletion(&log)) { + continue; + } + + if (config && config->min_update_index > 0 && + log.update_index < config->min_update_index) { + continue; + } + + if (config && config->time > 0 && + log.value.update.time < config->time) { + continue; + } + + err = reftable_writer_add_log(wr, &log); + if (err < 0) { + break; + } + entries++; + } + +done: + reftable_iterator_destroy(&it); + if (mt) { + merged_table_release(mt); + reftable_merged_table_free(mt); + } + reftable_ref_record_release(&ref); + reftable_log_record_release(&log); + st->stats.entries_written += entries; + return err; +} + +/* < 0: error. 0 == OK, > 0 attempt failed; could retry. */ +static int stack_compact_range(struct reftable_stack *st, int first, int last, + struct reftable_log_expiry_config *expiry) +{ + struct strbuf temp_tab_file_name = STRBUF_INIT; + struct strbuf new_table_name = STRBUF_INIT; + struct strbuf lock_file_name = STRBUF_INIT; + struct strbuf ref_list_contents = STRBUF_INIT; + struct strbuf new_table_path = STRBUF_INIT; + int err = 0; + int have_lock = 0; + int lock_file_fd = 0; + int compact_count = last - first + 1; + char **listp = NULL; + char **delete_on_success = + reftable_calloc(sizeof(char *) * (compact_count + 1)); + char **subtable_locks = + reftable_calloc(sizeof(char *) * (compact_count + 1)); + int i = 0; + int j = 0; + int is_empty_table = 0; + + if (first > last || (!expiry && first == last)) { + err = 0; + goto done; + } + + st->stats.attempts++; + + strbuf_reset(&lock_file_name); + strbuf_addstr(&lock_file_name, st->list_file); + strbuf_addstr(&lock_file_name, ".lock"); + + lock_file_fd = + open(lock_file_name.buf, O_EXCL | O_CREAT | O_WRONLY, 0644); + if (lock_file_fd < 0) { + if (errno == EEXIST) { + err = 1; + } else { + err = REFTABLE_IO_ERROR; + } + goto done; + } + /* Don't want to write to the lock for now. */ + close(lock_file_fd); + lock_file_fd = 0; + + have_lock = 1; + err = stack_uptodate(st); + if (err != 0) + goto done; + + for (i = first, j = 0; i <= last; i++) { + struct strbuf subtab_file_name = STRBUF_INIT; + struct strbuf subtab_lock = STRBUF_INIT; + int sublock_file_fd = -1; + + stack_filename(&subtab_file_name, st, + reader_name(st->readers[i])); + + strbuf_reset(&subtab_lock); + strbuf_addbuf(&subtab_lock, &subtab_file_name); + strbuf_addstr(&subtab_lock, ".lock"); + + sublock_file_fd = open(subtab_lock.buf, + O_EXCL | O_CREAT | O_WRONLY, 0644); + if (sublock_file_fd > 0) { + close(sublock_file_fd); + } else if (sublock_file_fd < 0) { + if (errno == EEXIST) { + err = 1; + } else { + err = REFTABLE_IO_ERROR; + } + } + + subtable_locks[j] = subtab_lock.buf; + delete_on_success[j] = subtab_file_name.buf; + j++; + + if (err != 0) + goto done; + } + + err = unlink(lock_file_name.buf); + if (err < 0) + goto done; + have_lock = 0; + + err = stack_compact_locked(st, first, last, &temp_tab_file_name, + expiry); + /* Compaction + tombstones can create an empty table out of non-empty + * tables. */ + is_empty_table = (err == REFTABLE_EMPTY_TABLE_ERROR); + if (is_empty_table) { + err = 0; + } + if (err < 0) + goto done; + + lock_file_fd = + open(lock_file_name.buf, O_EXCL | O_CREAT | O_WRONLY, 0644); + if (lock_file_fd < 0) { + if (errno == EEXIST) { + err = 1; + } else { + err = REFTABLE_IO_ERROR; + } + goto done; + } + have_lock = 1; + + format_name(&new_table_name, st->readers[first]->min_update_index, + st->readers[last]->max_update_index); + strbuf_addstr(&new_table_name, ".ref"); + + stack_filename(&new_table_path, st, new_table_name.buf); + + if (!is_empty_table) { + /* retry? */ + err = rename(temp_tab_file_name.buf, new_table_path.buf); + if (err < 0) { + err = REFTABLE_IO_ERROR; + goto done; + } + } + + for (i = 0; i < first; i++) { + strbuf_addstr(&ref_list_contents, st->readers[i]->name); + strbuf_addstr(&ref_list_contents, "\n"); + } + if (!is_empty_table) { + strbuf_addbuf(&ref_list_contents, &new_table_name); + strbuf_addstr(&ref_list_contents, "\n"); + } + for (i = last + 1; i < st->merged->stack_len; i++) { + strbuf_addstr(&ref_list_contents, st->readers[i]->name); + strbuf_addstr(&ref_list_contents, "\n"); + } + + err = write(lock_file_fd, ref_list_contents.buf, ref_list_contents.len); + if (err < 0) { + err = REFTABLE_IO_ERROR; + unlink(new_table_path.buf); + goto done; + } + err = close(lock_file_fd); + lock_file_fd = 0; + if (err < 0) { + err = REFTABLE_IO_ERROR; + unlink(new_table_path.buf); + goto done; + } + + err = rename(lock_file_name.buf, st->list_file); + if (err < 0) { + err = REFTABLE_IO_ERROR; + unlink(new_table_path.buf); + goto done; + } + have_lock = 0; + + /* Reload the stack before deleting. On windows, we can only delete the + files after we closed them. + */ + err = reftable_stack_reload_maybe_reuse(st, first < last); + + listp = delete_on_success; + while (*listp) { + if (strcmp(*listp, new_table_path.buf)) { + unlink(*listp); + } + listp++; + } + +done: + free_names(delete_on_success); + + listp = subtable_locks; + while (*listp) { + unlink(*listp); + listp++; + } + free_names(subtable_locks); + if (lock_file_fd > 0) { + close(lock_file_fd); + lock_file_fd = 0; + } + if (have_lock) { + unlink(lock_file_name.buf); + } + strbuf_release(&new_table_name); + strbuf_release(&new_table_path); + strbuf_release(&ref_list_contents); + strbuf_release(&temp_tab_file_name); + strbuf_release(&lock_file_name); + return err; +} + +int reftable_stack_compact_all(struct reftable_stack *st, + struct reftable_log_expiry_config *config) +{ + return stack_compact_range(st, 0, st->merged->stack_len - 1, config); +} + +static int stack_compact_range_stats(struct reftable_stack *st, int first, + int last, + struct reftable_log_expiry_config *config) +{ + int err = stack_compact_range(st, first, last, config); + if (err > 0) { + st->stats.failures++; + } + return err; +} + +static int segment_size(struct segment *s) +{ + return s->end - s->start; +} + +int fastlog2(uint64_t sz) +{ + int l = 0; + if (sz == 0) + return 0; + for (; sz; sz /= 2) { + l++; + } + return l - 1; +} + +struct segment *sizes_to_segments(int *seglen, uint64_t *sizes, int n) +{ + struct segment *segs = reftable_calloc(sizeof(struct segment) * n); + int next = 0; + struct segment cur = { 0 }; + int i = 0; + + if (n == 0) { + *seglen = 0; + return segs; + } + for (i = 0; i < n; i++) { + int log = fastlog2(sizes[i]); + if (cur.log != log && cur.bytes > 0) { + struct segment fresh = { + .start = i, + }; + + segs[next++] = cur; + cur = fresh; + } + + cur.log = log; + cur.end = i + 1; + cur.bytes += sizes[i]; + } + segs[next++] = cur; + *seglen = next; + return segs; +} + +struct segment suggest_compaction_segment(uint64_t *sizes, int n) +{ + int seglen = 0; + struct segment *segs = sizes_to_segments(&seglen, sizes, n); + struct segment min_seg = { + .log = 64, + }; + int i = 0; + for (i = 0; i < seglen; i++) { + if (segment_size(&segs[i]) == 1) { + continue; + } + + if (segs[i].log < min_seg.log) { + min_seg = segs[i]; + } + } + + while (min_seg.start > 0) { + int prev = min_seg.start - 1; + if (fastlog2(min_seg.bytes) < fastlog2(sizes[prev])) { + break; + } + + min_seg.start = prev; + min_seg.bytes += sizes[prev]; + } + + reftable_free(segs); + return min_seg; +} + +static uint64_t *stack_table_sizes_for_compaction(struct reftable_stack *st) +{ + uint64_t *sizes = + reftable_calloc(sizeof(uint64_t) * st->merged->stack_len); + int version = (st->config.hash_id == GIT_SHA1_FORMAT_ID) ? 1 : 2; + int overhead = header_size(version) - 1; + int i = 0; + for (i = 0; i < st->merged->stack_len; i++) { + sizes[i] = st->readers[i]->size - overhead; + } + return sizes; +} + +int reftable_stack_auto_compact(struct reftable_stack *st) +{ + uint64_t *sizes = stack_table_sizes_for_compaction(st); + struct segment seg = + suggest_compaction_segment(sizes, st->merged->stack_len); + reftable_free(sizes); + if (segment_size(&seg) > 0) + return stack_compact_range_stats(st, seg.start, seg.end - 1, + NULL); + + return 0; +} + +struct reftable_compaction_stats * +reftable_stack_compaction_stats(struct reftable_stack *st) +{ + return &st->stats; +} + +int reftable_stack_read_ref(struct reftable_stack *st, const char *refname, + struct reftable_ref_record *ref) +{ + struct reftable_table tab = { NULL }; + reftable_table_from_merged_table(&tab, reftable_stack_merged_table(st)); + return reftable_table_read_ref(&tab, refname, ref); +} + +int reftable_stack_read_log(struct reftable_stack *st, const char *refname, + struct reftable_log_record *log) +{ + struct reftable_iterator it = { NULL }; + struct reftable_merged_table *mt = reftable_stack_merged_table(st); + int err = reftable_merged_table_seek_log(mt, &it, refname); + if (err) + goto done; + + err = reftable_iterator_next_log(&it, log); + if (err) + goto done; + + if (strcmp(log->refname, refname) || + reftable_log_record_is_deletion(log)) { + err = 1; + goto done; + } + +done: + if (err) { + reftable_log_record_release(log); + } + reftable_iterator_destroy(&it); + return err; +} + +static int stack_check_addition(struct reftable_stack *st, + const char *new_tab_name) +{ + int err = 0; + struct reftable_block_source src = { NULL }; + struct reftable_reader *rd = NULL; + struct reftable_table tab = { NULL }; + struct reftable_ref_record *refs = NULL; + struct reftable_iterator it = { NULL }; + int cap = 0; + int len = 0; + int i = 0; + + if (st->config.skip_name_check) + return 0; + + err = reftable_block_source_from_file(&src, new_tab_name); + if (err < 0) + goto done; + + err = reftable_new_reader(&rd, &src, new_tab_name); + if (err < 0) + goto done; + + err = reftable_reader_seek_ref(rd, &it, ""); + if (err > 0) { + err = 0; + goto done; + } + if (err < 0) + goto done; + + while (1) { + struct reftable_ref_record ref = { NULL }; + err = reftable_iterator_next_ref(&it, &ref); + if (err > 0) { + break; + } + if (err < 0) + goto done; + + if (len >= cap) { + cap = 2 * cap + 1; + refs = reftable_realloc(refs, cap * sizeof(refs[0])); + } + + refs[len++] = ref; + } + + reftable_table_from_merged_table(&tab, reftable_stack_merged_table(st)); + + err = validate_ref_record_addition(tab, refs, len); + +done: + for (i = 0; i < len; i++) { + reftable_ref_record_release(&refs[i]); + } + + free(refs); + reftable_iterator_destroy(&it); + reftable_reader_free(rd); + return err; +} + +static int is_table_name(const char *s) +{ + const char *dot = strrchr(s, '.'); + return dot && !strcmp(dot, ".ref"); +} + +static void remove_maybe_stale_table(struct reftable_stack *st, uint64_t max, + const char *name) +{ + int err = 0; + uint64_t update_idx = 0; + struct reftable_block_source src = { NULL }; + struct reftable_reader *rd = NULL; + struct strbuf table_path = STRBUF_INIT; + stack_filename(&table_path, st, name); + + err = reftable_block_source_from_file(&src, table_path.buf); + if (err < 0) + goto done; + + err = reftable_new_reader(&rd, &src, name); + if (err < 0) + goto done; + + update_idx = reftable_reader_max_update_index(rd); + reftable_reader_free(rd); + + if (update_idx <= max) { + unlink(table_path.buf); + } +done: + strbuf_release(&table_path); +} + +static int reftable_stack_clean_locked(struct reftable_stack *st) +{ + uint64_t max = reftable_merged_table_max_update_index( + reftable_stack_merged_table(st)); + DIR *dir = opendir(st->reftable_dir); + struct dirent *d = NULL; + if (!dir) { + return REFTABLE_IO_ERROR; + } + + while ((d = readdir(dir))) { + int i = 0; + int found = 0; + if (!is_table_name(d->d_name)) + continue; + + for (i = 0; !found && i < st->readers_len; i++) { + found = !strcmp(reader_name(st->readers[i]), d->d_name); + } + if (found) + continue; + + remove_maybe_stale_table(st, max, d->d_name); + } + + closedir(dir); + return 0; +} + +int reftable_stack_clean(struct reftable_stack *st) +{ + struct reftable_addition *add = NULL; + int err = reftable_stack_new_addition(&add, st); + if (err < 0) { + goto done; + } + + err = reftable_stack_reload(st); + if (err < 0) { + goto done; + } + + err = reftable_stack_clean_locked(st); + +done: + reftable_addition_destroy(add); + return err; +} + +int reftable_stack_print_directory(const char *stackdir, uint32_t hash_id) +{ + struct reftable_stack *stack = NULL; + struct reftable_write_options cfg = { .hash_id = hash_id }; + struct reftable_merged_table *merged = NULL; + struct reftable_table table = { NULL }; + + int err = reftable_new_stack(&stack, stackdir, cfg); + if (err < 0) + goto done; + + merged = reftable_stack_merged_table(stack); + reftable_table_from_merged_table(&table, merged); + err = reftable_table_print(&table); +done: + if (stack) + reftable_stack_destroy(stack); + return err; +} diff --git a/reftable/stack.h b/reftable/stack.h new file mode 100644 index 0000000000..f57005846e --- /dev/null +++ b/reftable/stack.h @@ -0,0 +1,41 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef STACK_H +#define STACK_H + +#include "system.h" +#include "reftable-writer.h" +#include "reftable-stack.h" + +struct reftable_stack { + char *list_file; + char *reftable_dir; + int disable_auto_compact; + + struct reftable_write_options config; + + struct reftable_reader **readers; + size_t readers_len; + struct reftable_merged_table *merged; + struct reftable_compaction_stats stats; +}; + +int read_lines(const char *filename, char ***lines); + +struct segment { + int start, end; + int log; + uint64_t bytes; +}; + +int fastlog2(uint64_t sz); +struct segment *sizes_to_segments(int *seglen, uint64_t *sizes, int n); +struct segment suggest_compaction_segment(uint64_t *sizes, int n); + +#endif diff --git a/reftable/stack_test.c b/reftable/stack_test.c new file mode 100644 index 0000000000..eb0b7228b0 --- /dev/null +++ b/reftable/stack_test.c @@ -0,0 +1,953 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "stack.h" + +#include "system.h" + +#include "reftable-reader.h" +#include "merged.h" +#include "basics.h" +#include "constants.h" +#include "record.h" +#include "test_framework.h" +#include "reftable-tests.h" + +#include <sys/types.h> +#include <dirent.h> + +static void clear_dir(const char *dirname) +{ + struct strbuf path = STRBUF_INIT; + strbuf_addstr(&path, dirname); + remove_dir_recursively(&path, 0); + strbuf_release(&path); +} + +static int count_dir_entries(const char *dirname) +{ + DIR *dir = opendir(dirname); + int len = 0; + struct dirent *d; + if (dir == NULL) + return 0; + + while ((d = readdir(dir))) { + if (!strcmp(d->d_name, "..") || !strcmp(d->d_name, ".")) + continue; + len++; + } + closedir(dir); + return len; +} + +/* + * Work linenumber into the tempdir, so we can see which tests forget to + * cleanup. + */ +static char *get_tmp_template(int linenumber) +{ + const char *tmp = getenv("TMPDIR"); + static char template[1024]; + snprintf(template, sizeof(template) - 1, "%s/stack_test-%d.XXXXXX", + tmp ? tmp : "/tmp", linenumber); + return template; +} + +static char *get_tmp_dir(int linenumber) +{ + char *dir = get_tmp_template(linenumber); + EXPECT(mkdtemp(dir)); + return dir; +} + +static void test_read_file(void) +{ + char *fn = get_tmp_template(__LINE__); + int fd = mkstemp(fn); + char out[1024] = "line1\n\nline2\nline3"; + int n, err; + char **names = NULL; + char *want[] = { "line1", "line2", "line3" }; + int i = 0; + + EXPECT(fd > 0); + n = write(fd, out, strlen(out)); + EXPECT(n == strlen(out)); + err = close(fd); + EXPECT(err >= 0); + + err = read_lines(fn, &names); + EXPECT_ERR(err); + + for (i = 0; names[i]; i++) { + EXPECT(0 == strcmp(want[i], names[i])); + } + free_names(names); + remove(fn); +} + +static void test_parse_names(void) +{ + char buf[] = "line\n"; + char **names = NULL; + parse_names(buf, strlen(buf), &names); + + EXPECT(NULL != names[0]); + EXPECT(0 == strcmp(names[0], "line")); + EXPECT(NULL == names[1]); + free_names(names); +} + +static void test_names_equal(void) +{ + char *a[] = { "a", "b", "c", NULL }; + char *b[] = { "a", "b", "d", NULL }; + char *c[] = { "a", "b", NULL }; + + EXPECT(names_equal(a, a)); + EXPECT(!names_equal(a, b)); + EXPECT(!names_equal(a, c)); +} + +static int write_test_ref(struct reftable_writer *wr, void *arg) +{ + struct reftable_ref_record *ref = arg; + reftable_writer_set_limits(wr, ref->update_index, ref->update_index); + return reftable_writer_add_ref(wr, ref); +} + +struct write_log_arg { + struct reftable_log_record *log; + uint64_t update_index; +}; + +static int write_test_log(struct reftable_writer *wr, void *arg) +{ + struct write_log_arg *wla = arg; + + reftable_writer_set_limits(wr, wla->update_index, wla->update_index); + return reftable_writer_add_log(wr, wla->log); +} + +static void test_reftable_stack_add_one(void) +{ + char *dir = get_tmp_dir(__LINE__); + + struct reftable_write_options cfg = { 0 }; + struct reftable_stack *st = NULL; + int err; + struct reftable_ref_record ref = { + .refname = "HEAD", + .update_index = 1, + .value_type = REFTABLE_REF_SYMREF, + .value.symref = "master", + }; + struct reftable_ref_record dest = { NULL }; + + + err = reftable_new_stack(&st, dir, cfg); + EXPECT_ERR(err); + + err = reftable_stack_add(st, &write_test_ref, &ref); + EXPECT_ERR(err); + + err = reftable_stack_read_ref(st, ref.refname, &dest); + EXPECT_ERR(err); + EXPECT(0 == strcmp("master", dest.value.symref)); + + printf("testing print functionality:\n"); + err = reftable_stack_print_directory(dir, GIT_SHA1_FORMAT_ID); + EXPECT_ERR(err); + + err = reftable_stack_print_directory(dir, GIT_SHA256_FORMAT_ID); + EXPECT(err == REFTABLE_FORMAT_ERROR); + + reftable_ref_record_release(&dest); + reftable_stack_destroy(st); + clear_dir(dir); +} + +static void test_reftable_stack_uptodate(void) +{ + struct reftable_write_options cfg = { 0 }; + struct reftable_stack *st1 = NULL; + struct reftable_stack *st2 = NULL; + char *dir = get_tmp_dir(__LINE__); + + int err; + struct reftable_ref_record ref1 = { + .refname = "HEAD", + .update_index = 1, + .value_type = REFTABLE_REF_SYMREF, + .value.symref = "master", + }; + struct reftable_ref_record ref2 = { + .refname = "branch2", + .update_index = 2, + .value_type = REFTABLE_REF_SYMREF, + .value.symref = "master", + }; + + + /* simulate multi-process access to the same stack + by creating two stacks for the same directory. + */ + err = reftable_new_stack(&st1, dir, cfg); + EXPECT_ERR(err); + + err = reftable_new_stack(&st2, dir, cfg); + EXPECT_ERR(err); + + err = reftable_stack_add(st1, &write_test_ref, &ref1); + EXPECT_ERR(err); + + err = reftable_stack_add(st2, &write_test_ref, &ref2); + EXPECT(err == REFTABLE_LOCK_ERROR); + + err = reftable_stack_reload(st2); + EXPECT_ERR(err); + + err = reftable_stack_add(st2, &write_test_ref, &ref2); + EXPECT_ERR(err); + reftable_stack_destroy(st1); + reftable_stack_destroy(st2); + clear_dir(dir); +} + +static void test_reftable_stack_transaction_api(void) +{ + char *dir = get_tmp_dir(__LINE__); + + struct reftable_write_options cfg = { 0 }; + struct reftable_stack *st = NULL; + int err; + struct reftable_addition *add = NULL; + + struct reftable_ref_record ref = { + .refname = "HEAD", + .update_index = 1, + .value_type = REFTABLE_REF_SYMREF, + .value.symref = "master", + }; + struct reftable_ref_record dest = { NULL }; + + + err = reftable_new_stack(&st, dir, cfg); + EXPECT_ERR(err); + + reftable_addition_destroy(add); + + err = reftable_stack_new_addition(&add, st); + EXPECT_ERR(err); + + err = reftable_addition_add(add, &write_test_ref, &ref); + EXPECT_ERR(err); + + err = reftable_addition_commit(add); + EXPECT_ERR(err); + + reftable_addition_destroy(add); + + err = reftable_stack_read_ref(st, ref.refname, &dest); + EXPECT_ERR(err); + EXPECT(REFTABLE_REF_SYMREF == dest.value_type); + EXPECT(0 == strcmp("master", dest.value.symref)); + + reftable_ref_record_release(&dest); + reftable_stack_destroy(st); + clear_dir(dir); +} + +static void test_reftable_stack_validate_refname(void) +{ + struct reftable_write_options cfg = { 0 }; + struct reftable_stack *st = NULL; + int err; + char *dir = get_tmp_dir(__LINE__); + + int i; + struct reftable_ref_record ref = { + .refname = "a/b", + .update_index = 1, + .value_type = REFTABLE_REF_SYMREF, + .value.symref = "master", + }; + char *additions[] = { "a", "a/b/c" }; + + err = reftable_new_stack(&st, dir, cfg); + EXPECT_ERR(err); + + err = reftable_stack_add(st, &write_test_ref, &ref); + EXPECT_ERR(err); + + for (i = 0; i < ARRAY_SIZE(additions); i++) { + struct reftable_ref_record ref = { + .refname = additions[i], + .update_index = 1, + .value_type = REFTABLE_REF_SYMREF, + .value.symref = "master", + }; + + err = reftable_stack_add(st, &write_test_ref, &ref); + EXPECT(err == REFTABLE_NAME_CONFLICT); + } + + reftable_stack_destroy(st); + clear_dir(dir); +} + +static int write_error(struct reftable_writer *wr, void *arg) +{ + return *((int *)arg); +} + +static void test_reftable_stack_update_index_check(void) +{ + char *dir = get_tmp_dir(__LINE__); + + struct reftable_write_options cfg = { 0 }; + struct reftable_stack *st = NULL; + int err; + struct reftable_ref_record ref1 = { + .refname = "name1", + .update_index = 1, + .value_type = REFTABLE_REF_SYMREF, + .value.symref = "master", + }; + struct reftable_ref_record ref2 = { + .refname = "name2", + .update_index = 1, + .value_type = REFTABLE_REF_SYMREF, + .value.symref = "master", + }; + + err = reftable_new_stack(&st, dir, cfg); + EXPECT_ERR(err); + + err = reftable_stack_add(st, &write_test_ref, &ref1); + EXPECT_ERR(err); + + err = reftable_stack_add(st, &write_test_ref, &ref2); + EXPECT(err == REFTABLE_API_ERROR); + reftable_stack_destroy(st); + clear_dir(dir); +} + +static void test_reftable_stack_lock_failure(void) +{ + char *dir = get_tmp_dir(__LINE__); + + struct reftable_write_options cfg = { 0 }; + struct reftable_stack *st = NULL; + int err, i; + + err = reftable_new_stack(&st, dir, cfg); + EXPECT_ERR(err); + for (i = -1; i != REFTABLE_EMPTY_TABLE_ERROR; i--) { + err = reftable_stack_add(st, &write_error, &i); + EXPECT(err == i); + } + + reftable_stack_destroy(st); + clear_dir(dir); +} + +static void test_reftable_stack_add(void) +{ + int i = 0; + int err = 0; + struct reftable_write_options cfg = { + .exact_log_message = 1, + }; + struct reftable_stack *st = NULL; + char *dir = get_tmp_dir(__LINE__); + + struct reftable_ref_record refs[2] = { { NULL } }; + struct reftable_log_record logs[2] = { { NULL } }; + int N = ARRAY_SIZE(refs); + + + err = reftable_new_stack(&st, dir, cfg); + EXPECT_ERR(err); + st->disable_auto_compact = 1; + + for (i = 0; i < N; i++) { + char buf[256]; + snprintf(buf, sizeof(buf), "branch%02d", i); + refs[i].refname = xstrdup(buf); + refs[i].update_index = i + 1; + refs[i].value_type = REFTABLE_REF_VAL1; + refs[i].value.val1 = reftable_malloc(GIT_SHA1_RAWSZ); + set_test_hash(refs[i].value.val1, i); + + logs[i].refname = xstrdup(buf); + logs[i].update_index = N + i + 1; + logs[i].value_type = REFTABLE_LOG_UPDATE; + + logs[i].value.update.new_hash = reftable_malloc(GIT_SHA1_RAWSZ); + logs[i].value.update.email = xstrdup("identity@invalid"); + set_test_hash(logs[i].value.update.new_hash, i); + } + + for (i = 0; i < N; i++) { + int err = reftable_stack_add(st, &write_test_ref, &refs[i]); + EXPECT_ERR(err); + } + + for (i = 0; i < N; i++) { + struct write_log_arg arg = { + .log = &logs[i], + .update_index = reftable_stack_next_update_index(st), + }; + int err = reftable_stack_add(st, &write_test_log, &arg); + EXPECT_ERR(err); + } + + err = reftable_stack_compact_all(st, NULL); + EXPECT_ERR(err); + + for (i = 0; i < N; i++) { + struct reftable_ref_record dest = { NULL }; + + int err = reftable_stack_read_ref(st, refs[i].refname, &dest); + EXPECT_ERR(err); + EXPECT(reftable_ref_record_equal(&dest, refs + i, + GIT_SHA1_RAWSZ)); + reftable_ref_record_release(&dest); + } + + for (i = 0; i < N; i++) { + struct reftable_log_record dest = { NULL }; + int err = reftable_stack_read_log(st, refs[i].refname, &dest); + EXPECT_ERR(err); + EXPECT(reftable_log_record_equal(&dest, logs + i, + GIT_SHA1_RAWSZ)); + reftable_log_record_release(&dest); + } + + /* cleanup */ + reftable_stack_destroy(st); + for (i = 0; i < N; i++) { + reftable_ref_record_release(&refs[i]); + reftable_log_record_release(&logs[i]); + } + clear_dir(dir); +} + +static void test_reftable_stack_log_normalize(void) +{ + int err = 0; + struct reftable_write_options cfg = { + 0, + }; + struct reftable_stack *st = NULL; + char *dir = get_tmp_dir(__LINE__); + + uint8_t h1[GIT_SHA1_RAWSZ] = { 0x01 }, h2[GIT_SHA1_RAWSZ] = { 0x02 }; + + struct reftable_log_record input = { .refname = "branch", + .update_index = 1, + .value_type = REFTABLE_LOG_UPDATE, + .value = { .update = { + .new_hash = h1, + .old_hash = h2, + } } }; + struct reftable_log_record dest = { + .update_index = 0, + }; + struct write_log_arg arg = { + .log = &input, + .update_index = 1, + }; + + err = reftable_new_stack(&st, dir, cfg); + EXPECT_ERR(err); + + input.value.update.message = "one\ntwo"; + err = reftable_stack_add(st, &write_test_log, &arg); + EXPECT(err == REFTABLE_API_ERROR); + + input.value.update.message = "one"; + err = reftable_stack_add(st, &write_test_log, &arg); + EXPECT_ERR(err); + + err = reftable_stack_read_log(st, input.refname, &dest); + EXPECT_ERR(err); + EXPECT(0 == strcmp(dest.value.update.message, "one\n")); + + input.value.update.message = "two\n"; + arg.update_index = 2; + err = reftable_stack_add(st, &write_test_log, &arg); + EXPECT_ERR(err); + err = reftable_stack_read_log(st, input.refname, &dest); + EXPECT_ERR(err); + EXPECT(0 == strcmp(dest.value.update.message, "two\n")); + + /* cleanup */ + reftable_stack_destroy(st); + reftable_log_record_release(&dest); + clear_dir(dir); +} + +static void test_reftable_stack_tombstone(void) +{ + int i = 0; + char *dir = get_tmp_dir(__LINE__); + + struct reftable_write_options cfg = { 0 }; + struct reftable_stack *st = NULL; + int err; + struct reftable_ref_record refs[2] = { { NULL } }; + struct reftable_log_record logs[2] = { { NULL } }; + int N = ARRAY_SIZE(refs); + struct reftable_ref_record dest = { NULL }; + struct reftable_log_record log_dest = { NULL }; + + + err = reftable_new_stack(&st, dir, cfg); + EXPECT_ERR(err); + + /* even entries add the refs, odd entries delete them. */ + for (i = 0; i < N; i++) { + const char *buf = "branch"; + refs[i].refname = xstrdup(buf); + refs[i].update_index = i + 1; + if (i % 2 == 0) { + refs[i].value_type = REFTABLE_REF_VAL1; + refs[i].value.val1 = reftable_malloc(GIT_SHA1_RAWSZ); + set_test_hash(refs[i].value.val1, i); + } + + logs[i].refname = xstrdup(buf); + /* update_index is part of the key. */ + logs[i].update_index = 42; + if (i % 2 == 0) { + logs[i].value_type = REFTABLE_LOG_UPDATE; + logs[i].value.update.new_hash = + reftable_malloc(GIT_SHA1_RAWSZ); + set_test_hash(logs[i].value.update.new_hash, i); + logs[i].value.update.email = + xstrdup("identity@invalid"); + } + } + for (i = 0; i < N; i++) { + int err = reftable_stack_add(st, &write_test_ref, &refs[i]); + EXPECT_ERR(err); + } + + for (i = 0; i < N; i++) { + struct write_log_arg arg = { + .log = &logs[i], + .update_index = reftable_stack_next_update_index(st), + }; + int err = reftable_stack_add(st, &write_test_log, &arg); + EXPECT_ERR(err); + } + + err = reftable_stack_read_ref(st, "branch", &dest); + EXPECT(err == 1); + reftable_ref_record_release(&dest); + + err = reftable_stack_read_log(st, "branch", &log_dest); + EXPECT(err == 1); + reftable_log_record_release(&log_dest); + + err = reftable_stack_compact_all(st, NULL); + EXPECT_ERR(err); + + err = reftable_stack_read_ref(st, "branch", &dest); + EXPECT(err == 1); + + err = reftable_stack_read_log(st, "branch", &log_dest); + EXPECT(err == 1); + reftable_ref_record_release(&dest); + reftable_log_record_release(&log_dest); + + /* cleanup */ + reftable_stack_destroy(st); + for (i = 0; i < N; i++) { + reftable_ref_record_release(&refs[i]); + reftable_log_record_release(&logs[i]); + } + clear_dir(dir); +} + +static void test_reftable_stack_hash_id(void) +{ + char *dir = get_tmp_dir(__LINE__); + + struct reftable_write_options cfg = { 0 }; + struct reftable_stack *st = NULL; + int err; + + struct reftable_ref_record ref = { + .refname = "master", + .value_type = REFTABLE_REF_SYMREF, + .value.symref = "target", + .update_index = 1, + }; + struct reftable_write_options cfg32 = { .hash_id = GIT_SHA256_FORMAT_ID }; + struct reftable_stack *st32 = NULL; + struct reftable_write_options cfg_default = { 0 }; + struct reftable_stack *st_default = NULL; + struct reftable_ref_record dest = { NULL }; + + err = reftable_new_stack(&st, dir, cfg); + EXPECT_ERR(err); + + err = reftable_stack_add(st, &write_test_ref, &ref); + EXPECT_ERR(err); + + /* can't read it with the wrong hash ID. */ + err = reftable_new_stack(&st32, dir, cfg32); + EXPECT(err == REFTABLE_FORMAT_ERROR); + + /* check that we can read it back with default config too. */ + err = reftable_new_stack(&st_default, dir, cfg_default); + EXPECT_ERR(err); + + err = reftable_stack_read_ref(st_default, "master", &dest); + EXPECT_ERR(err); + + EXPECT(reftable_ref_record_equal(&ref, &dest, GIT_SHA1_RAWSZ)); + reftable_ref_record_release(&dest); + reftable_stack_destroy(st); + reftable_stack_destroy(st_default); + clear_dir(dir); +} + +static void test_log2(void) +{ + EXPECT(1 == fastlog2(3)); + EXPECT(2 == fastlog2(4)); + EXPECT(2 == fastlog2(5)); +} + +static void test_sizes_to_segments(void) +{ + uint64_t sizes[] = { 2, 3, 4, 5, 7, 9 }; + /* .................0 1 2 3 4 5 */ + + int seglen = 0; + struct segment *segs = + sizes_to_segments(&seglen, sizes, ARRAY_SIZE(sizes)); + EXPECT(segs[2].log == 3); + EXPECT(segs[2].start == 5); + EXPECT(segs[2].end == 6); + + EXPECT(segs[1].log == 2); + EXPECT(segs[1].start == 2); + EXPECT(segs[1].end == 5); + reftable_free(segs); +} + +static void test_sizes_to_segments_empty(void) +{ + int seglen = 0; + struct segment *segs = sizes_to_segments(&seglen, NULL, 0); + EXPECT(seglen == 0); + reftable_free(segs); +} + +static void test_sizes_to_segments_all_equal(void) +{ + uint64_t sizes[] = { 5, 5 }; + + int seglen = 0; + struct segment *segs = + sizes_to_segments(&seglen, sizes, ARRAY_SIZE(sizes)); + EXPECT(seglen == 1); + EXPECT(segs[0].start == 0); + EXPECT(segs[0].end == 2); + reftable_free(segs); +} + +static void test_suggest_compaction_segment(void) +{ + uint64_t sizes[] = { 128, 64, 17, 16, 9, 9, 9, 16, 16 }; + /* .................0 1 2 3 4 5 6 */ + struct segment min = + suggest_compaction_segment(sizes, ARRAY_SIZE(sizes)); + EXPECT(min.start == 2); + EXPECT(min.end == 7); +} + +static void test_suggest_compaction_segment_nothing(void) +{ + uint64_t sizes[] = { 64, 32, 16, 8, 4, 2 }; + struct segment result = + suggest_compaction_segment(sizes, ARRAY_SIZE(sizes)); + EXPECT(result.start == result.end); +} + +static void test_reflog_expire(void) +{ + char *dir = get_tmp_dir(__LINE__); + + struct reftable_write_options cfg = { 0 }; + struct reftable_stack *st = NULL; + struct reftable_log_record logs[20] = { { NULL } }; + int N = ARRAY_SIZE(logs) - 1; + int i = 0; + int err; + struct reftable_log_expiry_config expiry = { + .time = 10, + }; + struct reftable_log_record log = { NULL }; + + + err = reftable_new_stack(&st, dir, cfg); + EXPECT_ERR(err); + + for (i = 1; i <= N; i++) { + char buf[256]; + snprintf(buf, sizeof(buf), "branch%02d", i); + + logs[i].refname = xstrdup(buf); + logs[i].update_index = i; + logs[i].value_type = REFTABLE_LOG_UPDATE; + logs[i].value.update.time = i; + logs[i].value.update.new_hash = reftable_malloc(GIT_SHA1_RAWSZ); + logs[i].value.update.email = xstrdup("identity@invalid"); + set_test_hash(logs[i].value.update.new_hash, i); + } + + for (i = 1; i <= N; i++) { + struct write_log_arg arg = { + .log = &logs[i], + .update_index = reftable_stack_next_update_index(st), + }; + int err = reftable_stack_add(st, &write_test_log, &arg); + EXPECT_ERR(err); + } + + err = reftable_stack_compact_all(st, NULL); + EXPECT_ERR(err); + + err = reftable_stack_compact_all(st, &expiry); + EXPECT_ERR(err); + + err = reftable_stack_read_log(st, logs[9].refname, &log); + EXPECT(err == 1); + + err = reftable_stack_read_log(st, logs[11].refname, &log); + EXPECT_ERR(err); + + expiry.min_update_index = 15; + err = reftable_stack_compact_all(st, &expiry); + EXPECT_ERR(err); + + err = reftable_stack_read_log(st, logs[14].refname, &log); + EXPECT(err == 1); + + err = reftable_stack_read_log(st, logs[16].refname, &log); + EXPECT_ERR(err); + + /* cleanup */ + reftable_stack_destroy(st); + for (i = 0; i <= N; i++) { + reftable_log_record_release(&logs[i]); + } + clear_dir(dir); + reftable_log_record_release(&log); +} + +static int write_nothing(struct reftable_writer *wr, void *arg) +{ + reftable_writer_set_limits(wr, 1, 1); + return 0; +} + +static void test_empty_add(void) +{ + struct reftable_write_options cfg = { 0 }; + struct reftable_stack *st = NULL; + int err; + char *dir = get_tmp_dir(__LINE__); + + struct reftable_stack *st2 = NULL; + + + err = reftable_new_stack(&st, dir, cfg); + EXPECT_ERR(err); + + err = reftable_stack_add(st, &write_nothing, NULL); + EXPECT_ERR(err); + + err = reftable_new_stack(&st2, dir, cfg); + EXPECT_ERR(err); + clear_dir(dir); + reftable_stack_destroy(st); + reftable_stack_destroy(st2); +} + +static void test_reftable_stack_auto_compaction(void) +{ + struct reftable_write_options cfg = { 0 }; + struct reftable_stack *st = NULL; + char *dir = get_tmp_dir(__LINE__); + + int err, i; + int N = 100; + + err = reftable_new_stack(&st, dir, cfg); + EXPECT_ERR(err); + + st->disable_auto_compact = 1; /* call manually below for coverage. */ + for (i = 0; i < N; i++) { + char name[100]; + struct reftable_ref_record ref = { + .refname = name, + .update_index = reftable_stack_next_update_index(st), + .value_type = REFTABLE_REF_SYMREF, + .value.symref = "master", + }; + snprintf(name, sizeof(name), "branch%04d", i); + + err = reftable_stack_add(st, &write_test_ref, &ref); + EXPECT_ERR(err); + + err = reftable_stack_auto_compact(st); + EXPECT(i < 3 || st->merged->stack_len < 2 * fastlog2(i)); + } + + EXPECT(reftable_stack_compaction_stats(st)->entries_written < + (uint64_t)(N * fastlog2(N))); + + reftable_stack_destroy(st); + clear_dir(dir); +} + +static void test_reftable_stack_compaction_concurrent(void) +{ + struct reftable_write_options cfg = { 0 }; + struct reftable_stack *st1 = NULL, *st2 = NULL; + char *dir = get_tmp_dir(__LINE__); + + int err, i; + int N = 3; + + err = reftable_new_stack(&st1, dir, cfg); + EXPECT_ERR(err); + + for (i = 0; i < N; i++) { + char name[100]; + struct reftable_ref_record ref = { + .refname = name, + .update_index = reftable_stack_next_update_index(st1), + .value_type = REFTABLE_REF_SYMREF, + .value.symref = "master", + }; + snprintf(name, sizeof(name), "branch%04d", i); + + err = reftable_stack_add(st1, &write_test_ref, &ref); + EXPECT_ERR(err); + } + + err = reftable_new_stack(&st2, dir, cfg); + EXPECT_ERR(err); + + err = reftable_stack_compact_all(st1, NULL); + EXPECT_ERR(err); + + reftable_stack_destroy(st1); + reftable_stack_destroy(st2); + + EXPECT(count_dir_entries(dir) == 2); + clear_dir(dir); +} + +static void unclean_stack_close(struct reftable_stack *st) +{ + /* break abstraction boundary to simulate unclean shutdown. */ + int i = 0; + for (; i < st->readers_len; i++) { + reftable_reader_free(st->readers[i]); + } + st->readers_len = 0; + FREE_AND_NULL(st->readers); +} + +static void test_reftable_stack_compaction_concurrent_clean(void) +{ + struct reftable_write_options cfg = { 0 }; + struct reftable_stack *st1 = NULL, *st2 = NULL, *st3 = NULL; + char *dir = get_tmp_dir(__LINE__); + + int err, i; + int N = 3; + + err = reftable_new_stack(&st1, dir, cfg); + EXPECT_ERR(err); + + for (i = 0; i < N; i++) { + char name[100]; + struct reftable_ref_record ref = { + .refname = name, + .update_index = reftable_stack_next_update_index(st1), + .value_type = REFTABLE_REF_SYMREF, + .value.symref = "master", + }; + snprintf(name, sizeof(name), "branch%04d", i); + + err = reftable_stack_add(st1, &write_test_ref, &ref); + EXPECT_ERR(err); + } + + err = reftable_new_stack(&st2, dir, cfg); + EXPECT_ERR(err); + + err = reftable_stack_compact_all(st1, NULL); + EXPECT_ERR(err); + + unclean_stack_close(st1); + unclean_stack_close(st2); + + err = reftable_new_stack(&st3, dir, cfg); + EXPECT_ERR(err); + + err = reftable_stack_clean(st3); + EXPECT_ERR(err); + EXPECT(count_dir_entries(dir) == 2); + + reftable_stack_destroy(st1); + reftable_stack_destroy(st2); + reftable_stack_destroy(st3); + + clear_dir(dir); +} + +int stack_test_main(int argc, const char *argv[]) +{ + RUN_TEST(test_empty_add); + RUN_TEST(test_log2); + RUN_TEST(test_names_equal); + RUN_TEST(test_parse_names); + RUN_TEST(test_read_file); + RUN_TEST(test_reflog_expire); + RUN_TEST(test_reftable_stack_add); + RUN_TEST(test_reftable_stack_add_one); + RUN_TEST(test_reftable_stack_auto_compaction); + RUN_TEST(test_reftable_stack_compaction_concurrent); + RUN_TEST(test_reftable_stack_compaction_concurrent_clean); + RUN_TEST(test_reftable_stack_hash_id); + RUN_TEST(test_reftable_stack_lock_failure); + RUN_TEST(test_reftable_stack_log_normalize); + RUN_TEST(test_reftable_stack_tombstone); + RUN_TEST(test_reftable_stack_transaction_api); + RUN_TEST(test_reftable_stack_update_index_check); + RUN_TEST(test_reftable_stack_uptodate); + RUN_TEST(test_reftable_stack_validate_refname); + RUN_TEST(test_sizes_to_segments); + RUN_TEST(test_sizes_to_segments_all_equal); + RUN_TEST(test_sizes_to_segments_empty); + RUN_TEST(test_suggest_compaction_segment); + RUN_TEST(test_suggest_compaction_segment_nothing); + return 0; +} diff --git a/reftable/system.h b/reftable/system.h new file mode 100644 index 0000000000..4907306c0c --- /dev/null +++ b/reftable/system.h @@ -0,0 +1,32 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef SYSTEM_H +#define SYSTEM_H + +/* This header glues the reftable library to the rest of Git */ + +#include "git-compat-util.h" +#include "strbuf.h" +#include "hash.h" /* hash ID, sizes.*/ +#include "dir.h" /* remove_dir_recursively, for tests.*/ + +#include <zlib.h> + +#ifdef NO_UNCOMPRESS2 +/* + * This is uncompress2, which is only available in zlib >= 1.2.9 + * (released as of early 2017) + */ +int uncompress2(Bytef *dest, uLongf *destLen, const Bytef *source, + uLong *sourceLen); +#endif + +int hash_size(uint32_t id); + +#endif diff --git a/reftable/test_framework.c b/reftable/test_framework.c new file mode 100644 index 0000000000..84ac972cad --- /dev/null +++ b/reftable/test_framework.c @@ -0,0 +1,23 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "system.h" +#include "test_framework.h" + +#include "basics.h" + +void set_test_hash(uint8_t *p, int i) +{ + memset(p, (uint8_t)i, hash_size(GIT_SHA1_FORMAT_ID)); +} + +ssize_t strbuf_add_void(void *b, const void *data, size_t sz) +{ + strbuf_add(b, data, sz); + return sz; +} diff --git a/reftable/test_framework.h b/reftable/test_framework.h new file mode 100644 index 0000000000..774cb275bf --- /dev/null +++ b/reftable/test_framework.h @@ -0,0 +1,53 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef TEST_FRAMEWORK_H +#define TEST_FRAMEWORK_H + +#include "system.h" +#include "reftable-error.h" + +#define EXPECT_ERR(c) \ + if (c != 0) { \ + fflush(stderr); \ + fflush(stdout); \ + fprintf(stderr, "%s: %d: error == %d (%s), want 0\n", \ + __FILE__, __LINE__, c, reftable_error_str(c)); \ + abort(); \ + } + +#define EXPECT_STREQ(a, b) \ + if (strcmp(a, b)) { \ + fflush(stderr); \ + fflush(stdout); \ + fprintf(stderr, "%s:%d: %s (%s) != %s (%s)\n", __FILE__, \ + __LINE__, #a, a, #b, b); \ + abort(); \ + } + +#define EXPECT(c) \ + if (!(c)) { \ + fflush(stderr); \ + fflush(stdout); \ + fprintf(stderr, "%s: %d: failed assertion %s\n", __FILE__, \ + __LINE__, #c); \ + abort(); \ + } + +#define RUN_TEST(f) \ + fprintf(stderr, "running %s\n", #f); \ + fflush(stderr); \ + f(); + +void set_test_hash(uint8_t *p, int i); + +/* Like strbuf_add, but suitable for passing to reftable_new_writer + */ +ssize_t strbuf_add_void(void *b, const void *data, size_t sz); + +#endif diff --git a/reftable/tree.c b/reftable/tree.c new file mode 100644 index 0000000000..82db7995dd --- /dev/null +++ b/reftable/tree.c @@ -0,0 +1,63 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "tree.h" + +#include "basics.h" +#include "system.h" + +struct tree_node *tree_search(void *key, struct tree_node **rootp, + int (*compare)(const void *, const void *), + int insert) +{ + int res; + if (*rootp == NULL) { + if (!insert) { + return NULL; + } else { + struct tree_node *n = + reftable_calloc(sizeof(struct tree_node)); + n->key = key; + *rootp = n; + return *rootp; + } + } + + res = compare(key, (*rootp)->key); + if (res < 0) + return tree_search(key, &(*rootp)->left, compare, insert); + else if (res > 0) + return tree_search(key, &(*rootp)->right, compare, insert); + return *rootp; +} + +void infix_walk(struct tree_node *t, void (*action)(void *arg, void *key), + void *arg) +{ + if (t->left) { + infix_walk(t->left, action, arg); + } + action(arg, t->key); + if (t->right) { + infix_walk(t->right, action, arg); + } +} + +void tree_free(struct tree_node *t) +{ + if (t == NULL) { + return; + } + if (t->left) { + tree_free(t->left); + } + if (t->right) { + tree_free(t->right); + } + reftable_free(t); +} diff --git a/reftable/tree.h b/reftable/tree.h new file mode 100644 index 0000000000..fbdd002e23 --- /dev/null +++ b/reftable/tree.h @@ -0,0 +1,34 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef TREE_H +#define TREE_H + +/* tree_node is a generic binary search tree. */ +struct tree_node { + void *key; + struct tree_node *left, *right; +}; + +/* looks for `key` in `rootp` using `compare` as comparison function. If insert + * is set, insert the key if it's not found. Else, return NULL. + */ +struct tree_node *tree_search(void *key, struct tree_node **rootp, + int (*compare)(const void *, const void *), + int insert); + +/* performs an infix walk of the tree. */ +void infix_walk(struct tree_node *t, void (*action)(void *arg, void *key), + void *arg); + +/* + * deallocates the tree nodes recursively. Keys should be deallocated separately + * by walking over the tree. */ +void tree_free(struct tree_node *t); + +#endif diff --git a/reftable/tree_test.c b/reftable/tree_test.c new file mode 100644 index 0000000000..cbff125588 --- /dev/null +++ b/reftable/tree_test.c @@ -0,0 +1,61 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "tree.h" + +#include "basics.h" +#include "record.h" +#include "test_framework.h" +#include "reftable-tests.h" + +static int test_compare(const void *a, const void *b) +{ + return (char *)a - (char *)b; +} + +struct curry { + void *last; +}; + +static void check_increasing(void *arg, void *key) +{ + struct curry *c = arg; + if (c->last) { + EXPECT(test_compare(c->last, key) < 0); + } + c->last = key; +} + +static void test_tree(void) +{ + struct tree_node *root = NULL; + + void *values[11] = { NULL }; + struct tree_node *nodes[11] = { NULL }; + int i = 1; + struct curry c = { NULL }; + do { + nodes[i] = tree_search(values + i, &root, &test_compare, 1); + i = (i * 7) % 11; + } while (i != 1); + + for (i = 1; i < ARRAY_SIZE(nodes); i++) { + EXPECT(values + i == nodes[i]->key); + EXPECT(nodes[i] == + tree_search(values + i, &root, &test_compare, 0)); + } + + infix_walk(root, check_increasing, &c); + tree_free(root); +} + +int tree_test_main(int argc, const char *argv[]) +{ + RUN_TEST(test_tree); + return 0; +} diff --git a/reftable/writer.c b/reftable/writer.c new file mode 100644 index 0000000000..3ca721e9f6 --- /dev/null +++ b/reftable/writer.c @@ -0,0 +1,690 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#include "writer.h" + +#include "system.h" + +#include "block.h" +#include "constants.h" +#include "record.h" +#include "tree.h" +#include "reftable-error.h" + +/* finishes a block, and writes it to storage */ +static int writer_flush_block(struct reftable_writer *w); + +/* deallocates memory related to the index */ +static void writer_clear_index(struct reftable_writer *w); + +/* finishes writing a 'r' (refs) or 'g' (reflogs) section */ +static int writer_finish_public_section(struct reftable_writer *w); + +static struct reftable_block_stats * +writer_reftable_block_stats(struct reftable_writer *w, uint8_t typ) +{ + switch (typ) { + case 'r': + return &w->stats.ref_stats; + case 'o': + return &w->stats.obj_stats; + case 'i': + return &w->stats.idx_stats; + case 'g': + return &w->stats.log_stats; + } + abort(); + return NULL; +} + +/* write data, queuing the padding for the next write. Returns negative for + * error. */ +static int padded_write(struct reftable_writer *w, uint8_t *data, size_t len, + int padding) +{ + int n = 0; + if (w->pending_padding > 0) { + uint8_t *zeroed = reftable_calloc(w->pending_padding); + int n = w->write(w->write_arg, zeroed, w->pending_padding); + if (n < 0) + return n; + + w->pending_padding = 0; + reftable_free(zeroed); + } + + w->pending_padding = padding; + n = w->write(w->write_arg, data, len); + if (n < 0) + return n; + n += padding; + return 0; +} + +static void options_set_defaults(struct reftable_write_options *opts) +{ + if (opts->restart_interval == 0) { + opts->restart_interval = 16; + } + + if (opts->hash_id == 0) { + opts->hash_id = GIT_SHA1_FORMAT_ID; + } + if (opts->block_size == 0) { + opts->block_size = DEFAULT_BLOCK_SIZE; + } +} + +static int writer_version(struct reftable_writer *w) +{ + return (w->opts.hash_id == 0 || w->opts.hash_id == GIT_SHA1_FORMAT_ID) ? + 1 : + 2; +} + +static int writer_write_header(struct reftable_writer *w, uint8_t *dest) +{ + memcpy(dest, "REFT", 4); + + dest[4] = writer_version(w); + + put_be24(dest + 5, w->opts.block_size); + put_be64(dest + 8, w->min_update_index); + put_be64(dest + 16, w->max_update_index); + if (writer_version(w) == 2) { + put_be32(dest + 24, w->opts.hash_id); + } + return header_size(writer_version(w)); +} + +static void writer_reinit_block_writer(struct reftable_writer *w, uint8_t typ) +{ + int block_start = 0; + if (w->next == 0) { + block_start = header_size(writer_version(w)); + } + + strbuf_release(&w->last_key); + block_writer_init(&w->block_writer_data, typ, w->block, + w->opts.block_size, block_start, + hash_size(w->opts.hash_id)); + w->block_writer = &w->block_writer_data; + w->block_writer->restart_interval = w->opts.restart_interval; +} + +static struct strbuf reftable_empty_strbuf = STRBUF_INIT; + +struct reftable_writer * +reftable_new_writer(ssize_t (*writer_func)(void *, const void *, size_t), + void *writer_arg, struct reftable_write_options *opts) +{ + struct reftable_writer *wp = + reftable_calloc(sizeof(struct reftable_writer)); + strbuf_init(&wp->block_writer_data.last_key, 0); + options_set_defaults(opts); + if (opts->block_size >= (1 << 24)) { + /* TODO - error return? */ + abort(); + } + wp->last_key = reftable_empty_strbuf; + wp->block = reftable_calloc(opts->block_size); + wp->write = writer_func; + wp->write_arg = writer_arg; + wp->opts = *opts; + writer_reinit_block_writer(wp, BLOCK_TYPE_REF); + + return wp; +} + +void reftable_writer_set_limits(struct reftable_writer *w, uint64_t min, + uint64_t max) +{ + w->min_update_index = min; + w->max_update_index = max; +} + +void reftable_writer_free(struct reftable_writer *w) +{ + reftable_free(w->block); + reftable_free(w); +} + +struct obj_index_tree_node { + struct strbuf hash; + uint64_t *offsets; + size_t offset_len; + size_t offset_cap; +}; + +#define OBJ_INDEX_TREE_NODE_INIT \ + { \ + .hash = STRBUF_INIT \ + } + +static int obj_index_tree_node_compare(const void *a, const void *b) +{ + return strbuf_cmp(&((const struct obj_index_tree_node *)a)->hash, + &((const struct obj_index_tree_node *)b)->hash); +} + +static void writer_index_hash(struct reftable_writer *w, struct strbuf *hash) +{ + uint64_t off = w->next; + + struct obj_index_tree_node want = { .hash = *hash }; + + struct tree_node *node = tree_search(&want, &w->obj_index_tree, + &obj_index_tree_node_compare, 0); + struct obj_index_tree_node *key = NULL; + if (node == NULL) { + struct obj_index_tree_node empty = OBJ_INDEX_TREE_NODE_INIT; + key = reftable_malloc(sizeof(struct obj_index_tree_node)); + *key = empty; + + strbuf_reset(&key->hash); + strbuf_addbuf(&key->hash, hash); + tree_search((void *)key, &w->obj_index_tree, + &obj_index_tree_node_compare, 1); + } else { + key = node->key; + } + + if (key->offset_len > 0 && key->offsets[key->offset_len - 1] == off) { + return; + } + + if (key->offset_len == key->offset_cap) { + key->offset_cap = 2 * key->offset_cap + 1; + key->offsets = reftable_realloc( + key->offsets, sizeof(uint64_t) * key->offset_cap); + } + + key->offsets[key->offset_len++] = off; +} + +static int writer_add_record(struct reftable_writer *w, + struct reftable_record *rec) +{ + struct strbuf key = STRBUF_INIT; + int err = -1; + reftable_record_key(rec, &key); + if (strbuf_cmp(&w->last_key, &key) >= 0) { + err = REFTABLE_API_ERROR; + goto done; + } + + strbuf_reset(&w->last_key); + strbuf_addbuf(&w->last_key, &key); + if (w->block_writer == NULL) { + writer_reinit_block_writer(w, reftable_record_type(rec)); + } + + assert(block_writer_type(w->block_writer) == reftable_record_type(rec)); + + if (block_writer_add(w->block_writer, rec) == 0) { + err = 0; + goto done; + } + + err = writer_flush_block(w); + if (err < 0) { + goto done; + } + + writer_reinit_block_writer(w, reftable_record_type(rec)); + err = block_writer_add(w->block_writer, rec); + if (err < 0) { + goto done; + } + + err = 0; +done: + strbuf_release(&key); + return err; +} + +int reftable_writer_add_ref(struct reftable_writer *w, + struct reftable_ref_record *ref) +{ + struct reftable_record rec = { NULL }; + struct reftable_ref_record copy = *ref; + int err = 0; + + if (ref->refname == NULL) + return REFTABLE_API_ERROR; + if (ref->update_index < w->min_update_index || + ref->update_index > w->max_update_index) + return REFTABLE_API_ERROR; + + reftable_record_from_ref(&rec, ©); + copy.update_index -= w->min_update_index; + + err = writer_add_record(w, &rec); + if (err < 0) + return err; + + if (!w->opts.skip_index_objects && reftable_ref_record_val1(ref)) { + struct strbuf h = STRBUF_INIT; + strbuf_add(&h, (char *)reftable_ref_record_val1(ref), + hash_size(w->opts.hash_id)); + writer_index_hash(w, &h); + strbuf_release(&h); + } + + if (!w->opts.skip_index_objects && reftable_ref_record_val2(ref)) { + struct strbuf h = STRBUF_INIT; + strbuf_add(&h, reftable_ref_record_val2(ref), + hash_size(w->opts.hash_id)); + writer_index_hash(w, &h); + strbuf_release(&h); + } + return 0; +} + +int reftable_writer_add_refs(struct reftable_writer *w, + struct reftable_ref_record *refs, int n) +{ + int err = 0; + int i = 0; + QSORT(refs, n, reftable_ref_record_compare_name); + for (i = 0; err == 0 && i < n; i++) { + err = reftable_writer_add_ref(w, &refs[i]); + } + return err; +} + +static int reftable_writer_add_log_verbatim(struct reftable_writer *w, + struct reftable_log_record *log) +{ + struct reftable_record rec = { NULL }; + if (w->block_writer && + block_writer_type(w->block_writer) == BLOCK_TYPE_REF) { + int err = writer_finish_public_section(w); + if (err < 0) + return err; + } + + w->next -= w->pending_padding; + w->pending_padding = 0; + + reftable_record_from_log(&rec, log); + return writer_add_record(w, &rec); +} + +int reftable_writer_add_log(struct reftable_writer *w, + struct reftable_log_record *log) +{ + char *input_log_message = NULL; + struct strbuf cleaned_message = STRBUF_INIT; + int err = 0; + + if (log->value_type == REFTABLE_LOG_DELETION) + return reftable_writer_add_log_verbatim(w, log); + + if (log->refname == NULL) + return REFTABLE_API_ERROR; + + input_log_message = log->value.update.message; + if (!w->opts.exact_log_message && log->value.update.message) { + strbuf_addstr(&cleaned_message, log->value.update.message); + while (cleaned_message.len && + cleaned_message.buf[cleaned_message.len - 1] == '\n') + strbuf_setlen(&cleaned_message, + cleaned_message.len - 1); + if (strchr(cleaned_message.buf, '\n')) { + /* multiple lines not allowed. */ + err = REFTABLE_API_ERROR; + goto done; + } + strbuf_addstr(&cleaned_message, "\n"); + log->value.update.message = cleaned_message.buf; + } + + err = reftable_writer_add_log_verbatim(w, log); + log->value.update.message = input_log_message; +done: + strbuf_release(&cleaned_message); + return err; +} + +int reftable_writer_add_logs(struct reftable_writer *w, + struct reftable_log_record *logs, int n) +{ + int err = 0; + int i = 0; + QSORT(logs, n, reftable_log_record_compare_key); + + for (i = 0; err == 0 && i < n; i++) { + err = reftable_writer_add_log(w, &logs[i]); + } + return err; +} + +static int writer_finish_section(struct reftable_writer *w) +{ + uint8_t typ = block_writer_type(w->block_writer); + uint64_t index_start = 0; + int max_level = 0; + int threshold = w->opts.unpadded ? 1 : 3; + int before_blocks = w->stats.idx_stats.blocks; + int err = writer_flush_block(w); + int i = 0; + struct reftable_block_stats *bstats = NULL; + if (err < 0) + return err; + + while (w->index_len > threshold) { + struct reftable_index_record *idx = NULL; + int idx_len = 0; + + max_level++; + index_start = w->next; + writer_reinit_block_writer(w, BLOCK_TYPE_INDEX); + + idx = w->index; + idx_len = w->index_len; + + w->index = NULL; + w->index_len = 0; + w->index_cap = 0; + for (i = 0; i < idx_len; i++) { + struct reftable_record rec = { NULL }; + reftable_record_from_index(&rec, idx + i); + if (block_writer_add(w->block_writer, &rec) == 0) { + continue; + } + + err = writer_flush_block(w); + if (err < 0) + return err; + + writer_reinit_block_writer(w, BLOCK_TYPE_INDEX); + + err = block_writer_add(w->block_writer, &rec); + if (err != 0) { + /* write into fresh block should always succeed + */ + abort(); + } + } + for (i = 0; i < idx_len; i++) { + strbuf_release(&idx[i].last_key); + } + reftable_free(idx); + } + + writer_clear_index(w); + + err = writer_flush_block(w); + if (err < 0) + return err; + + bstats = writer_reftable_block_stats(w, typ); + bstats->index_blocks = w->stats.idx_stats.blocks - before_blocks; + bstats->index_offset = index_start; + bstats->max_index_level = max_level; + + /* Reinit lastKey, as the next section can start with any key. */ + w->last_key.len = 0; + + return 0; +} + +struct common_prefix_arg { + struct strbuf *last; + int max; +}; + +static void update_common(void *void_arg, void *key) +{ + struct common_prefix_arg *arg = void_arg; + struct obj_index_tree_node *entry = key; + if (arg->last) { + int n = common_prefix_size(&entry->hash, arg->last); + if (n > arg->max) { + arg->max = n; + } + } + arg->last = &entry->hash; +} + +struct write_record_arg { + struct reftable_writer *w; + int err; +}; + +static void write_object_record(void *void_arg, void *key) +{ + struct write_record_arg *arg = void_arg; + struct obj_index_tree_node *entry = key; + struct reftable_obj_record obj_rec = { + .hash_prefix = (uint8_t *)entry->hash.buf, + .hash_prefix_len = arg->w->stats.object_id_len, + .offsets = entry->offsets, + .offset_len = entry->offset_len, + }; + struct reftable_record rec = { NULL }; + if (arg->err < 0) + goto done; + + reftable_record_from_obj(&rec, &obj_rec); + arg->err = block_writer_add(arg->w->block_writer, &rec); + if (arg->err == 0) + goto done; + + arg->err = writer_flush_block(arg->w); + if (arg->err < 0) + goto done; + + writer_reinit_block_writer(arg->w, BLOCK_TYPE_OBJ); + arg->err = block_writer_add(arg->w->block_writer, &rec); + if (arg->err == 0) + goto done; + obj_rec.offset_len = 0; + arg->err = block_writer_add(arg->w->block_writer, &rec); + + /* Should be able to write into a fresh block. */ + assert(arg->err == 0); + +done:; +} + +static void object_record_free(void *void_arg, void *key) +{ + struct obj_index_tree_node *entry = key; + + FREE_AND_NULL(entry->offsets); + strbuf_release(&entry->hash); + reftable_free(entry); +} + +static int writer_dump_object_index(struct reftable_writer *w) +{ + struct write_record_arg closure = { .w = w }; + struct common_prefix_arg common = { NULL }; + if (w->obj_index_tree) { + infix_walk(w->obj_index_tree, &update_common, &common); + } + w->stats.object_id_len = common.max + 1; + + writer_reinit_block_writer(w, BLOCK_TYPE_OBJ); + + if (w->obj_index_tree) { + infix_walk(w->obj_index_tree, &write_object_record, &closure); + } + + if (closure.err < 0) + return closure.err; + return writer_finish_section(w); +} + +static int writer_finish_public_section(struct reftable_writer *w) +{ + uint8_t typ = 0; + int err = 0; + + if (w->block_writer == NULL) + return 0; + + typ = block_writer_type(w->block_writer); + err = writer_finish_section(w); + if (err < 0) + return err; + if (typ == BLOCK_TYPE_REF && !w->opts.skip_index_objects && + w->stats.ref_stats.index_blocks > 0) { + err = writer_dump_object_index(w); + if (err < 0) + return err; + } + + if (w->obj_index_tree) { + infix_walk(w->obj_index_tree, &object_record_free, NULL); + tree_free(w->obj_index_tree); + w->obj_index_tree = NULL; + } + + w->block_writer = NULL; + return 0; +} + +int reftable_writer_close(struct reftable_writer *w) +{ + uint8_t footer[72]; + uint8_t *p = footer; + int err = writer_finish_public_section(w); + int empty_table = w->next == 0; + if (err != 0) + goto done; + w->pending_padding = 0; + if (empty_table) { + /* Empty tables need a header anyway. */ + uint8_t header[28]; + int n = writer_write_header(w, header); + err = padded_write(w, header, n, 0); + if (err < 0) + goto done; + } + + p += writer_write_header(w, footer); + put_be64(p, w->stats.ref_stats.index_offset); + p += 8; + put_be64(p, (w->stats.obj_stats.offset) << 5 | w->stats.object_id_len); + p += 8; + put_be64(p, w->stats.obj_stats.index_offset); + p += 8; + + put_be64(p, w->stats.log_stats.offset); + p += 8; + put_be64(p, w->stats.log_stats.index_offset); + p += 8; + + put_be32(p, crc32(0, footer, p - footer)); + p += 4; + + err = padded_write(w, footer, footer_size(writer_version(w)), 0); + if (err < 0) + goto done; + + if (empty_table) { + err = REFTABLE_EMPTY_TABLE_ERROR; + goto done; + } + +done: + /* free up memory. */ + block_writer_release(&w->block_writer_data); + writer_clear_index(w); + strbuf_release(&w->last_key); + return err; +} + +static void writer_clear_index(struct reftable_writer *w) +{ + int i = 0; + for (i = 0; i < w->index_len; i++) { + strbuf_release(&w->index[i].last_key); + } + + FREE_AND_NULL(w->index); + w->index_len = 0; + w->index_cap = 0; +} + +static const int debug = 0; + +static int writer_flush_nonempty_block(struct reftable_writer *w) +{ + uint8_t typ = block_writer_type(w->block_writer); + struct reftable_block_stats *bstats = + writer_reftable_block_stats(w, typ); + uint64_t block_typ_off = (bstats->blocks == 0) ? w->next : 0; + int raw_bytes = block_writer_finish(w->block_writer); + int padding = 0; + int err = 0; + struct reftable_index_record ir = { .last_key = STRBUF_INIT }; + if (raw_bytes < 0) + return raw_bytes; + + if (!w->opts.unpadded && typ != BLOCK_TYPE_LOG) { + padding = w->opts.block_size - raw_bytes; + } + + if (block_typ_off > 0) { + bstats->offset = block_typ_off; + } + + bstats->entries += w->block_writer->entries; + bstats->restarts += w->block_writer->restart_len; + bstats->blocks++; + w->stats.blocks++; + + if (debug) { + fprintf(stderr, "block %c off %" PRIu64 " sz %d (%d)\n", typ, + w->next, raw_bytes, + get_be24(w->block + w->block_writer->header_off + 1)); + } + + if (w->next == 0) { + writer_write_header(w, w->block); + } + + err = padded_write(w, w->block, raw_bytes, padding); + if (err < 0) + return err; + + if (w->index_cap == w->index_len) { + w->index_cap = 2 * w->index_cap + 1; + w->index = reftable_realloc( + w->index, + sizeof(struct reftable_index_record) * w->index_cap); + } + + ir.offset = w->next; + strbuf_reset(&ir.last_key); + strbuf_addbuf(&ir.last_key, &w->block_writer->last_key); + w->index[w->index_len] = ir; + + w->index_len++; + w->next += padding + raw_bytes; + w->block_writer = NULL; + return 0; +} + +static int writer_flush_block(struct reftable_writer *w) +{ + if (w->block_writer == NULL) + return 0; + if (w->block_writer->entries == 0) + return 0; + return writer_flush_nonempty_block(w); +} + +const struct reftable_stats *writer_stats(struct reftable_writer *w) +{ + return &w->stats; +} diff --git a/reftable/writer.h b/reftable/writer.h new file mode 100644 index 0000000000..09b88673d9 --- /dev/null +++ b/reftable/writer.h @@ -0,0 +1,50 @@ +/* +Copyright 2020 Google LLC + +Use of this source code is governed by a BSD-style +license that can be found in the LICENSE file or at +https://developers.google.com/open-source/licenses/bsd +*/ + +#ifndef WRITER_H +#define WRITER_H + +#include "basics.h" +#include "block.h" +#include "tree.h" +#include "reftable-writer.h" + +struct reftable_writer { + ssize_t (*write)(void *, const void *, size_t); + void *write_arg; + int pending_padding; + struct strbuf last_key; + + /* offset of next block to write. */ + uint64_t next; + uint64_t min_update_index, max_update_index; + struct reftable_write_options opts; + + /* memory buffer for writing */ + uint8_t *block; + + /* writer for the current section. NULL or points to + * block_writer_data */ + struct block_writer *block_writer; + + struct block_writer block_writer_data; + + /* pending index records for the current section */ + struct reftable_index_record *index; + size_t index_len; + size_t index_cap; + + /* + * tree for use with tsearch; used to populate the 'o' inverse OID + * map */ + struct tree_node *obj_index_tree; + + struct reftable_stats stats; +}; + +#endif diff --git a/remote-curl.c b/remote-curl.c index d69156312b..0dabef2dd7 100644 --- a/remote-curl.c +++ b/remote-curl.c @@ -1061,7 +1061,7 @@ static int rpc_service(struct rpc_state *rpc, struct discovery *heads, client.in = -1; client.out = -1; client.git_cmd = 1; - client.argv = client_argv; + strvec_pushv(&client.args, client_argv); if (start_command(&client)) exit(1); write_or_die(client.in, preamble->buf, preamble->len); diff --git a/repo-settings.c b/repo-settings.c index b93e91a212..00ca5571a1 100644 --- a/repo-settings.c +++ b/repo-settings.c @@ -17,6 +17,9 @@ void prepare_repo_settings(struct repository *r) char *strval; int manyfiles; + if (!r->gitdir) + BUG("Cannot add settings for uninitialized repository"); + if (r->settings.initialized++) return; diff --git a/revision.c b/revision.c index 1981a0859f..5390a479b3 100644 --- a/revision.c +++ b/revision.c @@ -44,10 +44,15 @@ static inline int want_ancestry(const struct rev_info *revs); void show_object_with_name(FILE *out, struct object *obj, const char *name) { - const char *p; - fprintf(out, "%s ", oid_to_hex(&obj->oid)); - for (p = name; *p && *p != '\n'; p++) + /* + * This "for (const char *p = ..." is made as a first step towards + * making use of such declarations elsewhere in our codebase. If + * it causes compilation problems on your platform, please report + * it to the Git mailing list at git@vger.kernel.org. In the meantime, + * adding -std=gnu99 to CFLAGS may help if you are with older GCC. + */ + for (const char *p = name; *p && *p != '\n'; p++) fputc(*p, out); fputc('\n', out); } diff --git a/run-command.c b/run-command.c index 1f58c17b6c..3ea2c2fc10 100644 --- a/run-command.c +++ b/run-command.c @@ -380,7 +380,7 @@ static void child_err_spew(struct child_process *cmd, struct child_err *cerr) switch (cerr->err) { case CHILD_ERR_CHDIR: error_errno("exec '%s': cd to '%s' failed", - cmd->argv[0], cmd->dir); + cmd->args.v[0], cmd->dir); break; case CHILD_ERR_DUP2: error_errno("dup2() in child failed"); @@ -392,12 +392,12 @@ static void child_err_spew(struct child_process *cmd, struct child_err *cerr) error_errno("sigprocmask failed restoring signals"); break; case CHILD_ERR_ENOENT: - error_errno("cannot run %s", cmd->argv[0]); + error_errno("cannot run %s", cmd->args.v[0]); break; case CHILD_ERR_SILENT: break; case CHILD_ERR_ERRNO: - error_errno("cannot exec '%s'", cmd->argv[0]); + error_errno("cannot exec '%s'", cmd->args.v[0]); break; } set_error_routine(old_errfn); @@ -405,7 +405,7 @@ static void child_err_spew(struct child_process *cmd, struct child_err *cerr) static int prepare_cmd(struct strvec *out, const struct child_process *cmd) { - if (!cmd->argv[0]) + if (!cmd->args.v[0]) BUG("command is empty"); /* @@ -415,11 +415,11 @@ static int prepare_cmd(struct strvec *out, const struct child_process *cmd) strvec_push(out, SHELL_PATH); if (cmd->git_cmd) { - prepare_git_cmd(out, cmd->argv); + prepare_git_cmd(out, cmd->args.v); } else if (cmd->use_shell) { - prepare_shell_cmd(out, cmd->argv); + prepare_shell_cmd(out, cmd->args.v); } else { - strvec_pushv(out, cmd->argv); + strvec_pushv(out, cmd->args.v); } /* @@ -654,15 +654,10 @@ static void trace_run_command(const struct child_process *cp) sq_quote_buf_pretty(&buf, cp->dir); strbuf_addch(&buf, ';'); } - /* - * The caller is responsible for initializing cp->env from - * cp->env_array if needed. We only check one place. - */ - if (cp->env) - trace_add_env(&buf, cp->env); + trace_add_env(&buf, cp->env_array.v); if (cp->git_cmd) strbuf_addstr(&buf, " git"); - sq_quote_argv_pretty(&buf, cp->argv); + sq_quote_argv_pretty(&buf, cp->args.v); trace_printf("%s", buf.buf); strbuf_release(&buf); @@ -675,11 +670,6 @@ int start_command(struct child_process *cmd) int failed_errno; char *str; - if (!cmd->argv) - cmd->argv = cmd->args.v; - if (!cmd->env) - cmd->env = cmd->env_array.v; - /* * In case of errors we must keep the promise to close FDs * that have been passed in via ->in and ->out. @@ -728,7 +718,7 @@ int start_command(struct child_process *cmd) str = "standard error"; fail_pipe: error("cannot create %s pipe for %s: %s", - str, cmd->argv[0], strerror(failed_errno)); + str, cmd->args.v[0], strerror(failed_errno)); child_process_clear(cmd); errno = failed_errno; return -1; @@ -757,7 +747,7 @@ fail_pipe: failed_errno = errno; cmd->pid = -1; if (!cmd->silent_exec_failure) - error_errno("cannot run %s", cmd->argv[0]); + error_errno("cannot run %s", cmd->args.v[0]); goto end_of_spawn; } @@ -769,7 +759,7 @@ fail_pipe: set_cloexec(null_fd); } - childenv = prep_childenv(cmd->env); + childenv = prep_childenv(cmd->env_array.v); atfork_prepare(&as); /* @@ -867,7 +857,7 @@ fail_pipe: } atfork_parent(&as); if (cmd->pid < 0) - error_errno("cannot fork() for %s", cmd->argv[0]); + error_errno("cannot fork() for %s", cmd->args.v[0]); else if (cmd->clean_on_exit) mark_child_for_cleanup(cmd->pid, cmd); @@ -884,7 +874,7 @@ fail_pipe: * At this point we know that fork() succeeded, but exec() * failed. Errors have been reported to our stderr. */ - wait_or_whine(cmd->pid, cmd->argv[0], 0); + wait_or_whine(cmd->pid, cmd->args.v[0], 0); child_err_spew(cmd, &cerr); failed_errno = errno; cmd->pid = -1; @@ -901,7 +891,7 @@ end_of_spawn: #else { int fhin = 0, fhout = 1, fherr = 2; - const char **sargv = cmd->argv; + const char **sargv = cmd->args.v; struct strvec nargv = STRVEC_INIT; if (cmd->no_stdin) @@ -928,20 +918,20 @@ end_of_spawn: fhout = dup(cmd->out); if (cmd->git_cmd) - cmd->argv = prepare_git_cmd(&nargv, cmd->argv); + cmd->args.v = prepare_git_cmd(&nargv, sargv); else if (cmd->use_shell) - cmd->argv = prepare_shell_cmd(&nargv, cmd->argv); + cmd->args.v = prepare_shell_cmd(&nargv, sargv); - cmd->pid = mingw_spawnvpe(cmd->argv[0], cmd->argv, (char**) cmd->env, + cmd->pid = mingw_spawnvpe(cmd->args.v[0], cmd->args.v, (char**) cmd->env_array.v, cmd->dir, fhin, fhout, fherr); failed_errno = errno; if (cmd->pid < 0 && (!cmd->silent_exec_failure || errno != ENOENT)) - error_errno("cannot spawn %s", cmd->argv[0]); + error_errno("cannot spawn %s", cmd->args.v[0]); if (cmd->clean_on_exit && cmd->pid >= 0) mark_child_for_cleanup(cmd->pid, cmd); strvec_clear(&nargv); - cmd->argv = sargv; + cmd->args.v = sargv; if (fhin != 0) close(fhin); if (fhout != 1) @@ -991,7 +981,7 @@ end_of_spawn: int finish_command(struct child_process *cmd) { - int ret = wait_or_whine(cmd->pid, cmd->argv[0], 0); + int ret = wait_or_whine(cmd->pid, cmd->args.v[0], 0); trace2_child_exit(cmd, ret); child_process_clear(cmd); invalidate_lstat_cache(); @@ -1000,7 +990,7 @@ int finish_command(struct child_process *cmd) int finish_command_in_signal(struct child_process *cmd) { - int ret = wait_or_whine(cmd->pid, cmd->argv[0], 1); + int ret = wait_or_whine(cmd->pid, cmd->args.v[0], 1); trace2_child_exit(cmd, ret); return ret; } @@ -1038,7 +1028,7 @@ int run_command_v_opt_cd_env_tr2(const char **argv, int opt, const char *dir, const char *const *env, const char *tr2_class) { struct child_process cmd = CHILD_PROCESS_INIT; - cmd.argv = argv; + strvec_pushv(&cmd.args, argv); cmd.no_stdin = opt & RUN_COMMAND_NO_STDIN ? 1 : 0; cmd.git_cmd = opt & RUN_GIT_CMD ? 1 : 0; cmd.stdout_to_stderr = opt & RUN_COMMAND_STDOUT_TO_STDERR ? 1 : 0; @@ -1048,7 +1038,8 @@ int run_command_v_opt_cd_env_tr2(const char **argv, int opt, const char *dir, cmd.wait_after_clean = opt & RUN_WAIT_AFTER_CLEAN ? 1 : 0; cmd.close_object_store = opt & RUN_CLOSE_OBJECT_STORE ? 1 : 0; cmd.dir = dir; - cmd.env = env; + if (env) + strvec_pushv(&cmd.env_array, (const char **)env); cmd.trace2_child_class = tr2_class; return run_command(&cmd); } @@ -1334,7 +1325,8 @@ int run_hook_ve(const char *const *env, const char *name, va_list args) strvec_push(&hook.args, p); while ((p = va_arg(args, const char *))) strvec_push(&hook.args, p); - hook.env = env; + if (env) + strvec_pushv(&hook.env_array, (const char **)env); hook.no_stdin = 1; hook.stdout_to_stderr = 1; hook.trace2_hook_name = name; diff --git a/run-command.h b/run-command.h index 4987826258..2be5f5d642 100644 --- a/run-command.h +++ b/run-command.h @@ -44,22 +44,35 @@ struct child_process { /** - * The .argv member is set up as an array of string pointers (NULL - * terminated), of which .argv[0] is the program name to run (usually - * without a path). If the command to run is a git command, set argv[0] to - * the command name without the 'git-' prefix and set .git_cmd = 1. + * The .args is a `struct strvec', use that API to manipulate + * it, e.g. strvec_pushv() to add an existing "const char **" + * vector. * - * Note that the ownership of the memory pointed to by .argv stays with the - * caller, but it should survive until `finish_command` completes. If the - * .argv member is NULL, `start_command` will point it at the .args - * `strvec` (so you may use one or the other, but you must use exactly - * one). The memory in .args will be cleaned up automatically during - * `finish_command` (or during `start_command` when it is unsuccessful). + * If the command to run is a git command, set the first + * element in the strvec to the command name without the + * 'git-' prefix and set .git_cmd = 1. * + * The memory in .args will be cleaned up automatically during + * `finish_command` (or during `start_command` when it is unsuccessful). */ - const char **argv; - struct strvec args; + + /** + * Like .args the .env_array is a `struct strvec'. + * + * To modify the environment of the sub-process, specify an array of + * environment settings. Each string in the array manipulates the + * environment. + * + * - If the string is of the form "VAR=value", i.e. it contains '=' + * the variable is added to the child process's environment. + * + * - If the string does not contain '=', it names an environment + * variable that will be removed from the child process's environment. + * + * The memory in .env_array will be cleaned up automatically during + * `finish_command` (or during `start_command` when it is unsuccessful). + */ struct strvec env_array; pid_t pid; @@ -96,23 +109,6 @@ struct child_process { */ const char *dir; - /** - * To modify the environment of the sub-process, specify an array of - * string pointers (NULL terminated) in .env: - * - * - If the string is of the form "VAR=value", i.e. it contains '=' - * the variable is added to the child process's environment. - * - * - If the string does not contain '=', it names an environment - * variable that will be removed from the child process's environment. - * - * If the .env member is NULL, `start_command` will point it at the - * .env_array `strvec` (so you may use one or the other, but not both). - * The memory in .env_array will be cleaned up automatically during - * `finish_command` (or during `start_command` when it is unsuccessful). - */ - const char *const *env; - unsigned no_stdin:1; unsigned no_stdout:1; unsigned no_stderr:1; diff --git a/sequencer.c b/sequencer.c index 795b370dd3..e314af4d60 100644 --- a/sequencer.c +++ b/sequencer.c @@ -1164,18 +1164,14 @@ static int run_rewrite_hook(const struct object_id *oldoid, const struct object_id *newoid) { struct child_process proc = CHILD_PROCESS_INIT; - const char *argv[3]; int code; struct strbuf sb = STRBUF_INIT; + const char *hook_path = find_hook("post-rewrite"); - argv[0] = find_hook("post-rewrite"); - if (!argv[0]) + if (!hook_path) return 0; - argv[1] = "amend"; - argv[2] = NULL; - - proc.argv = argv; + strvec_pushl(&proc.args, hook_path, "amend", NULL); proc.in = -1; proc.stdout_to_stderr = 1; proc.trace2_hook_name = "post-rewrite"; @@ -3501,17 +3497,12 @@ static int error_failed_squash(struct repository *r, static int do_exec(struct repository *r, const char *command_line) { - struct strvec child_env = STRVEC_INIT; const char *child_argv[] = { NULL, NULL }; int dirty, status; fprintf(stderr, _("Executing: %s\n"), command_line); child_argv[0] = command_line; - strvec_pushf(&child_env, "GIT_DIR=%s", absolute_path(get_git_dir())); - strvec_pushf(&child_env, "GIT_WORK_TREE=%s", - absolute_path(get_git_work_tree())); - status = run_command_v_opt_cd_env(child_argv, RUN_USING_SHELL, NULL, - child_env.v); + status = run_command_v_opt(child_argv, RUN_USING_SHELL); /* force re-reading of the cache */ if (discard_index(r->index) < 0 || repo_read_index(r) < 0) @@ -3541,8 +3532,6 @@ static int do_exec(struct repository *r, const char *command_line) status = 1; } - strvec_clear(&child_env); - return status; } @@ -160,7 +160,7 @@ void strbuf_grow(struct strbuf *sb, size_t amount); static inline void strbuf_setlen(struct strbuf *sb, size_t len) { if (len > (sb->alloc ? sb->alloc - 1 : 0)) - die("BUG: strbuf_setlen() beyond buffer"); + BUG("strbuf_setlen() beyond buffer"); sb->len = len; if (sb->buf != strbuf_slopbuf) sb->buf[len] = '\0'; diff --git a/sub-process.c b/sub-process.c index dfa790d3ff..cae56ae6b8 100644 --- a/sub-process.c +++ b/sub-process.c @@ -187,7 +187,7 @@ static int handshake_capabilities(struct child_process *process, *supported_capabilities |= capabilities[i].flag; } else { die("subprocess '%s' requested unsupported capability '%s'", - process->argv[0], p); + process->args.v[0], p); } } @@ -466,6 +466,12 @@ explicitly providing repositories when accessing submodule objects is complete or needs to be abandoned for whatever reason (in which case the migrated codepaths still retain their performance benefits). +GIT_TEST_REQUIRE_PREREQ=<list> allows specifying a space speparated list of +prereqs that are required to succeed. If a prereq in this list is triggered by +a test and then fails then the whole test run will abort. This can help to make +sure the expected tests are executed and not silently skipped when their +dependency breaks or is simply not present in a new environment. + Naming Tests ------------ diff --git a/t/aggregate-results.sh b/t/aggregate-results.sh index 7913e206ed..7f2b83bdc8 100755 --- a/t/aggregate-results.sh +++ b/t/aggregate-results.sh @@ -6,6 +6,7 @@ success=0 failed=0 broken=0 total=0 +missing_prereq= while read file do @@ -30,10 +31,26 @@ do broken=$(($broken + $value)) ;; total) total=$(($total + $value)) ;; + missing_prereq) + missing_prereq="$missing_prereq,$value" ;; esac done <"$file" done +if test -n "$missing_prereq" +then + unique_missing_prereq=$( + echo $missing_prereq | + tr -s "," "\n" | + grep -v '^$' | + sort -u | + paste -s -d ' ') + if test -n "$unique_missing_prereq" + then + printf "\nmissing prereq: $unique_missing_prereq\n\n" + fi +fi + if test -n "$failed_tests" then printf "\nfailed test(s):$failed_tests\n\n" diff --git a/t/helper/test-ref-store.c b/t/helper/test-ref-store.c index 73461c29d3..24dd4bec08 100644 --- a/t/helper/test-ref-store.c +++ b/t/helper/test-ref-store.c @@ -5,6 +5,48 @@ #include "object-store.h" #include "repository.h" +struct flag_definition { + const char *name; + uint64_t mask; +}; + +#define FLAG_DEF(x) \ + { \ +#x, (x) \ + } + +static unsigned int parse_flags(const char *str, struct flag_definition *defs) +{ + struct string_list masks = STRING_LIST_INIT_DUP; + int i = 0; + unsigned int result = 0; + + if (!strcmp(str, "0")) + return 0; + + string_list_split(&masks, str, ',', 64); + for (; i < masks.nr; i++) { + const char *name = masks.items[i].string; + struct flag_definition *def = defs; + int found = 0; + while (def->name) { + if (!strcmp(def->name, name)) { + result |= def->mask; + found = 1; + break; + } + def++; + } + if (!found) + die("unknown flag \"%s\"", name); + } + + string_list_clear(&masks, 0); + return result; +} + +static struct flag_definition empty_flags[] = { { NULL, 0 } }; + static const char *notnull(const char *arg, const char *name) { if (!arg) @@ -12,9 +54,10 @@ static const char *notnull(const char *arg, const char *name) return arg; } -static unsigned int arg_flags(const char *arg, const char *name) +static unsigned int arg_flags(const char *arg, const char *name, + struct flag_definition *defs) { - return atoi(notnull(arg, name)); + return parse_flags(notnull(arg, name), defs); } static const char **get_store(const char **argv, struct ref_store **refs) @@ -64,10 +107,13 @@ static const char **get_store(const char **argv, struct ref_store **refs) return argv + 1; } +static struct flag_definition pack_flags[] = { FLAG_DEF(PACK_REFS_PRUNE), + FLAG_DEF(PACK_REFS_ALL), + { NULL, 0 } }; static int cmd_pack_refs(struct ref_store *refs, const char **argv) { - unsigned int flags = arg_flags(*argv++, "flags"); + unsigned int flags = arg_flags(*argv++, "flags", pack_flags); return refs_pack_refs(refs, flags); } @@ -81,16 +127,27 @@ static int cmd_create_symref(struct ref_store *refs, const char **argv) return refs_create_symref(refs, refname, target, logmsg); } +static struct flag_definition transaction_flags[] = { + FLAG_DEF(REF_NO_DEREF), + FLAG_DEF(REF_FORCE_CREATE_REFLOG), + FLAG_DEF(REF_SKIP_OID_VERIFICATION), + FLAG_DEF(REF_SKIP_REFNAME_VERIFICATION), + { NULL, 0 } +}; + static int cmd_delete_refs(struct ref_store *refs, const char **argv) { - unsigned int flags = arg_flags(*argv++, "flags"); + unsigned int flags = arg_flags(*argv++, "flags", transaction_flags); const char *msg = *argv++; struct string_list refnames = STRING_LIST_INIT_NODUP; + int result; while (*argv) string_list_append(&refnames, *argv++); - return refs_delete_refs(refs, msg, &refnames, flags); + result = refs_delete_refs(refs, msg, &refnames, flags); + string_list_clear(&refnames, 0); + return result; } static int cmd_rename_ref(struct ref_store *refs, const char **argv) @@ -120,7 +177,7 @@ static int cmd_resolve_ref(struct ref_store *refs, const char **argv) { struct object_id oid = *null_oid(); const char *refname = notnull(*argv++, "refname"); - int resolve_flags = arg_flags(*argv++, "resolve-flags"); + int resolve_flags = arg_flags(*argv++, "resolve-flags", empty_flags); int flags; const char *ref; int ignore_errno; @@ -152,9 +209,9 @@ static int each_reflog(struct object_id *old_oid, struct object_id *new_oid, const char *committer, timestamp_t timestamp, int tz, const char *msg, void *cb_data) { - printf("%s %s %s %"PRItime" %d %s\n", - oid_to_hex(old_oid), oid_to_hex(new_oid), - committer, timestamp, tz, msg); + printf("%s %s %s %" PRItime " %+05d%s%s", oid_to_hex(old_oid), + oid_to_hex(new_oid), committer, timestamp, tz, + *msg == '\n' ? "" : "\t", msg); return 0; } @@ -208,7 +265,7 @@ static int cmd_delete_ref(struct ref_store *refs, const char **argv) const char *msg = notnull(*argv++, "msg"); const char *refname = notnull(*argv++, "refname"); const char *sha1_buf = notnull(*argv++, "old-sha1"); - unsigned int flags = arg_flags(*argv++, "flags"); + unsigned int flags = arg_flags(*argv++, "flags", transaction_flags); struct object_id old_oid; if (get_oid_hex(sha1_buf, &old_oid)) @@ -223,7 +280,7 @@ static int cmd_update_ref(struct ref_store *refs, const char **argv) const char *refname = notnull(*argv++, "refname"); const char *new_sha1_buf = notnull(*argv++, "new-sha1"); const char *old_sha1_buf = notnull(*argv++, "old-sha1"); - unsigned int flags = arg_flags(*argv++, "flags"); + unsigned int flags = arg_flags(*argv++, "flags", transaction_flags); struct object_id old_oid; struct object_id new_oid; diff --git a/t/helper/test-reftable.c b/t/helper/test-reftable.c new file mode 100644 index 0000000000..26b03d7b78 --- /dev/null +++ b/t/helper/test-reftable.c @@ -0,0 +1,21 @@ +#include "reftable/reftable-tests.h" +#include "test-tool.h" + +int cmd__reftable(int argc, const char **argv) +{ + basics_test_main(argc, argv); + block_test_main(argc, argv); + merged_test_main(argc, argv); + pq_test_main(argc, argv); + record_test_main(argc, argv); + refname_test_main(argc, argv); + readwrite_test_main(argc, argv); + stack_test_main(argc, argv); + tree_test_main(argc, argv); + return 0; +} + +int cmd__dump_reftable(int argc, const char **argv) +{ + return reftable_dump_main(argc, (char *const *)argv); +} diff --git a/t/helper/test-run-command.c b/t/helper/test-run-command.c index 3c4fb86223..913775a14b 100644 --- a/t/helper/test-run-command.c +++ b/t/helper/test-run-command.c @@ -31,7 +31,7 @@ static int parallel_next(struct child_process *cp, if (number_callbacks >= 4) return 0; - strvec_pushv(&cp->args, d->argv); + strvec_pushv(&cp->args, d->args.v); strbuf_addstr(err, "preloaded output of a child\n"); number_callbacks++; return 1; @@ -274,7 +274,7 @@ static int quote_stress_test(int argc, const char **argv) if (i < skip) continue; - cp.argv = args.v; + strvec_pushv(&cp.args, args.v); strbuf_reset(&out); if (pipe_command(&cp, NULL, 0, &out, 0, NULL, 0) < 0) return error("Failed to spawn child process"); @@ -396,7 +396,7 @@ int cmd__run_command(int argc, const char **argv) } if (argc < 3) return 1; - proc.argv = (const char **)argv + 2; + strvec_pushv(&proc.args, (const char **)argv + 2); if (!strcmp(argv[1], "start-command-ENOENT")) { if (start_command(&proc) < 0 && errno == ENOENT) @@ -408,7 +408,8 @@ int cmd__run_command(int argc, const char **argv) exit(run_command(&proc)); jobs = atoi(argv[2]); - proc.argv = (const char **)argv + 3; + strvec_clear(&proc.args); + strvec_pushv(&proc.args, (const char **)argv + 3); if (!strcmp(argv[1], "run-command-parallel")) exit(run_processes_parallel(jobs, parallel_next, diff --git a/t/helper/test-subprocess.c b/t/helper/test-subprocess.c index 92b69de635..ff22f2fa2c 100644 --- a/t/helper/test-subprocess.c +++ b/t/helper/test-subprocess.c @@ -15,6 +15,6 @@ int cmd__subprocess(int argc, const char **argv) argv++; } cp.git_cmd = 1; - cp.argv = (const char **)argv + 1; + strvec_pushv(&cp.args, (const char **)argv + 1); return run_command(&cp); } diff --git a/t/helper/test-tool.c b/t/helper/test-tool.c index 3ce5585e53..338a57b104 100644 --- a/t/helper/test-tool.c +++ b/t/helper/test-tool.c @@ -53,13 +53,15 @@ static struct test_cmd cmds[] = { { "pcre2-config", cmd__pcre2_config }, { "pkt-line", cmd__pkt_line }, { "prio-queue", cmd__prio_queue }, - { "proc-receive", cmd__proc_receive}, + { "proc-receive", cmd__proc_receive }, { "progress", cmd__progress }, { "reach", cmd__reach }, { "read-cache", cmd__read_cache }, { "read-graph", cmd__read_graph }, { "read-midx", cmd__read_midx }, { "ref-store", cmd__ref_store }, + { "reftable", cmd__reftable }, + { "dump-reftable", cmd__dump_reftable }, { "regex", cmd__regex }, { "repository", cmd__repository }, { "revision-walking", cmd__revision_walking }, diff --git a/t/helper/test-tool.h b/t/helper/test-tool.h index 9f0f522850..48cee1f4a2 100644 --- a/t/helper/test-tool.h +++ b/t/helper/test-tool.h @@ -19,6 +19,7 @@ int cmd__dump_cache_tree(int argc, const char **argv); int cmd__dump_fsmonitor(int argc, const char **argv); int cmd__dump_split_index(int argc, const char **argv); int cmd__dump_untracked_cache(int argc, const char **argv); +int cmd__dump_reftable(int argc, const char **argv); int cmd__example_decorate(int argc, const char **argv); int cmd__fast_rebase(int argc, const char **argv); int cmd__genrandom(int argc, const char **argv); @@ -49,6 +50,7 @@ int cmd__read_cache(int argc, const char **argv); int cmd__read_graph(int argc, const char **argv); int cmd__read_midx(int argc, const char **argv); int cmd__ref_store(int argc, const char **argv); +int cmd__reftable(int argc, const char **argv); int cmd__regex(int argc, const char **argv); int cmd__repository(int argc, const char **argv); int cmd__revision_walking(int argc, const char **argv); diff --git a/t/helper/test-trace2.c b/t/helper/test-trace2.c index f93633f895..59b124bb5f 100644 --- a/t/helper/test-trace2.c +++ b/t/helper/test-trace2.c @@ -262,8 +262,9 @@ static int print_usage(void) * [] the "cmd_name" event has been generated. * [] this writes various "def_param" events for interesting config values. * - * We further assume that if we return (rather than exit()), trace2_cmd_exit() - * will be called by test-tool.c:cmd_main(). + * We return from here and let test-tool.c::cmd_main() pass the exit + * code to common-main.c::main(), which will use it to call + * trace2_cmd_exit(). */ int cmd__trace2(int argc, const char **argv) { diff --git a/t/lib-gpg.sh b/t/lib-gpg.sh index a3f285f515..3e7ee1386a 100644 --- a/t/lib-gpg.sh +++ b/t/lib-gpg.sh @@ -90,7 +90,12 @@ test_lazy_prereq RFC1991 ' GPGSSH_KEY_PRIMARY="${GNUPGHOME}/ed25519_ssh_signing_key" GPGSSH_KEY_SECONDARY="${GNUPGHOME}/rsa_2048_ssh_signing_key" GPGSSH_KEY_UNTRUSTED="${GNUPGHOME}/untrusted_ssh_signing_key" +GPGSSH_KEY_EXPIRED="${GNUPGHOME}/expired_ssh_signing_key" +GPGSSH_KEY_NOTYETVALID="${GNUPGHOME}/notyetvalid_ssh_signing_key" +GPGSSH_KEY_TIMEBOXEDVALID="${GNUPGHOME}/timeboxed_valid_ssh_signing_key" +GPGSSH_KEY_TIMEBOXEDINVALID="${GNUPGHOME}/timeboxed_invalid_ssh_signing_key" GPGSSH_KEY_WITH_PASSPHRASE="${GNUPGHOME}/protected_ssh_signing_key" +GPGSSH_KEY_ECDSA="${GNUPGHOME}/ecdsa_ssh_signing_key" GPGSSH_KEY_PASSPHRASE="super_secret" GPGSSH_ALLOWED_SIGNERS="${GNUPGHOME}/ssh.all_valid.allowedSignersFile" @@ -105,21 +110,63 @@ test_lazy_prereq GPGSSH ' echo $ssh_version | grep -q "find-principals:missing signature file" test $? = 0 || exit 1; - # some broken versions of ssh-keygen segfault on find-principals; - # avoid testing with them. - ssh-keygen -Y find-principals -f /dev/null -s /dev/null - test $? = 139 && exit 1 - + # Setup some keys and an allowed signers file mkdir -p "${GNUPGHOME}" && chmod 0700 "${GNUPGHOME}" && (setfacl -k "${GNUPGHOME}" 2>/dev/null || true) && ssh-keygen -t ed25519 -N "" -C "git ed25519 key" -f "${GPGSSH_KEY_PRIMARY}" >/dev/null && - echo "\"principal with number 1\" $(cat "${GPGSSH_KEY_PRIMARY}.pub")" >> "${GPGSSH_ALLOWED_SIGNERS}" && ssh-keygen -t rsa -b 2048 -N "" -C "git rsa2048 key" -f "${GPGSSH_KEY_SECONDARY}" >/dev/null && - echo "\"principal with number 2\" $(cat "${GPGSSH_KEY_SECONDARY}.pub")" >> "${GPGSSH_ALLOWED_SIGNERS}" && ssh-keygen -t ed25519 -N "${GPGSSH_KEY_PASSPHRASE}" -C "git ed25519 encrypted key" -f "${GPGSSH_KEY_WITH_PASSPHRASE}" >/dev/null && - echo "\"principal with number 3\" $(cat "${GPGSSH_KEY_WITH_PASSPHRASE}.pub")" >> "${GPGSSH_ALLOWED_SIGNERS}" && - ssh-keygen -t ed25519 -N "" -f "${GPGSSH_KEY_UNTRUSTED}" >/dev/null + ssh-keygen -t ecdsa -N "" -f "${GPGSSH_KEY_ECDSA}" >/dev/null && + ssh-keygen -t ed25519 -N "" -C "git ed25519 key" -f "${GPGSSH_KEY_UNTRUSTED}" >/dev/null && + + cat >"${GPGSSH_ALLOWED_SIGNERS}" <<-EOF && + "principal with number 1" $(cat "${GPGSSH_KEY_PRIMARY}.pub")" + "principal with number 2" $(cat "${GPGSSH_KEY_SECONDARY}.pub")" + "principal with number 3" $(cat "${GPGSSH_KEY_WITH_PASSPHRASE}.pub")" + "principal with number 4" $(cat "${GPGSSH_KEY_ECDSA}.pub")" + EOF + + # Verify if at least one key and ssh-keygen works as expected + echo "testpayload" | + ssh-keygen -Y sign -n "git" -f "${GPGSSH_KEY_PRIMARY}" >gpgssh_prereq.sig && + ssh-keygen -Y find-principals -f "${GPGSSH_ALLOWED_SIGNERS}" -s gpgssh_prereq.sig && + echo "testpayload" | + ssh-keygen -Y verify -n "git" -f "${GPGSSH_ALLOWED_SIGNERS}" -I "principal with number 1" -s gpgssh_prereq.sig +' + +test_lazy_prereq GPGSSH_VERIFYTIME ' + # Check if ssh-keygen has a verify-time option by passing an invalid date to it + ssh-keygen -Overify-time=INVALID -Y check-novalidate -s doesnotmatter 2>&1 | grep -q -F "Invalid \"verify-time\"" && + + # Set up keys with key lifetimes + ssh-keygen -t ed25519 -N "" -C "timeboxed valid key" -f "${GPGSSH_KEY_TIMEBOXEDVALID}" >/dev/null && + key_valid=$(cat "${GPGSSH_KEY_TIMEBOXEDVALID}.pub") && + ssh-keygen -t ed25519 -N "" -C "timeboxed invalid key" -f "${GPGSSH_KEY_TIMEBOXEDINVALID}" >/dev/null && + key_invalid=$(cat "${GPGSSH_KEY_TIMEBOXEDINVALID}.pub") && + ssh-keygen -t ed25519 -N "" -C "expired key" -f "${GPGSSH_KEY_EXPIRED}" >/dev/null && + key_expired=$(cat "${GPGSSH_KEY_EXPIRED}.pub") && + ssh-keygen -t ed25519 -N "" -C "not yet valid key" -f "${GPGSSH_KEY_NOTYETVALID}" >/dev/null && + key_notyetvalid=$(cat "${GPGSSH_KEY_NOTYETVALID}.pub") && + + # Timestamps outside of test_tick span + ts2005a=20050401000000 ts2005b=200504020000 && + # Timestamps within test_tick span + ts2005c=20050407000000 ts2005d=200504100000 && + # Definitely not yet valid / expired timestamps + ts2000=20000101000000 ts2999=29990101000000 && + + cat >>"${GPGSSH_ALLOWED_SIGNERS}" <<-EOF && + "timeboxed valid key" valid-after="$ts2005c",valid-before="$ts2005d" $key_valid" + "timeboxed invalid key" valid-after="$ts2005a",valid-before="$ts2005b" $key_invalid" + "principal with expired key" valid-before="$ts2000" $key_expired" + "principal with not yet valid key" valid-after="$ts2999" $key_notyetvalid" + EOF + + # and verify ssh-keygen verifies the key lifetime + echo "testpayload" | + ssh-keygen -Y sign -n "git" -f "${GPGSSH_KEY_EXPIRED}" >gpgssh_verifytime_prereq.sig && + ! (ssh-keygen -Y verify -n "git" -f "${GPGSSH_ALLOWED_SIGNERS}" -I "principal with expired key" -s gpgssh_verifytime_prereq.sig) ' sanitize_pgp() { diff --git a/t/perf/p2000-sparse-operations.sh b/t/perf/p2000-sparse-operations.sh index bfd332120c..cb777c74a2 100755 --- a/t/perf/p2000-sparse-operations.sh +++ b/t/perf/p2000-sparse-operations.sh @@ -113,5 +113,9 @@ test_perf_on_all git checkout -f - test_perf_on_all git reset test_perf_on_all git reset --hard test_perf_on_all git reset -- does-not-exist +test_perf_on_all git diff +test_perf_on_all git diff --cached +test_perf_on_all git blame $SPARSE_CONE/a +test_perf_on_all git blame $SPARSE_CONE/f3/a test_done diff --git a/t/t0032-reftable-unittest.sh b/t/t0032-reftable-unittest.sh new file mode 100755 index 0000000000..0ed14971a5 --- /dev/null +++ b/t/t0032-reftable-unittest.sh @@ -0,0 +1,15 @@ +#!/bin/sh +# +# Copyright (c) 2020 Google LLC +# + +test_description='reftable unittests' + +. ./test-lib.sh + +test_expect_success 'unittests' ' + TMPDIR=$(pwd) && export TMPDIR && + test-tool reftable +' + +test_done diff --git a/t/t0071-sort.sh b/t/t0071-sort.sh index a8ab174879..6f9a501c72 100755 --- a/t/t0071-sort.sh +++ b/t/t0071-sort.sh @@ -2,6 +2,7 @@ test_description='verify sort functions' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'llist_mergesort()' ' diff --git a/t/t0200-gettext-basic.sh b/t/t0200-gettext-basic.sh index 8853d8afb9..522fb2ae69 100755 --- a/t/t0200-gettext-basic.sh +++ b/t/t0200-gettext-basic.sh @@ -5,6 +5,7 @@ test_description='Gettext support for Git' +TEST_PASSES_SANITIZE_LEAK=true . ./lib-gettext.sh test_expect_success "sanity: \$GIT_INTERNAL_GETTEXT_SH_SCHEME is set (to $GIT_INTERNAL_GETTEXT_SH_SCHEME)" ' diff --git a/t/t0201-gettext-fallbacks.sh b/t/t0201-gettext-fallbacks.sh index 6c74df0dc6..8724ce1052 100755 --- a/t/t0201-gettext-fallbacks.sh +++ b/t/t0201-gettext-fallbacks.sh @@ -8,6 +8,7 @@ test_description='Gettext Shell fallbacks' GIT_INTERNAL_GETTEXT_TEST_FALLBACKS=YesPlease export GIT_INTERNAL_GETTEXT_TEST_FALLBACKS +TEST_PASSES_SANITIZE_LEAK=true . ./lib-gettext.sh test_expect_success "sanity: \$GIT_INTERNAL_GETTEXT_SH_SCHEME is set (to $GIT_INTERNAL_GETTEXT_SH_SCHEME)" ' diff --git a/t/t0202-gettext-perl.sh b/t/t0202-gettext-perl.sh index a29d166e00..df2ea34932 100755 --- a/t/t0202-gettext-perl.sh +++ b/t/t0202-gettext-perl.sh @@ -5,6 +5,7 @@ test_description='Perl gettext interface (Git::I18N)' +TEST_PASSES_SANITIZE_LEAK=true . ./lib-gettext.sh if ! test_have_prereq PERL; then diff --git a/t/t0204-gettext-reencode-sanity.sh b/t/t0204-gettext-reencode-sanity.sh index 8437e51eb5..4f2e0dcb02 100755 --- a/t/t0204-gettext-reencode-sanity.sh +++ b/t/t0204-gettext-reencode-sanity.sh @@ -5,6 +5,7 @@ test_description="Gettext reencoding of our *.po/*.mo files works" +TEST_PASSES_SANITIZE_LEAK=true . ./lib-gettext.sh # The constants used in a tricky observation for undefined behaviour diff --git a/t/t1002-read-tree-m-u-2way.sh b/t/t1002-read-tree-m-u-2way.sh index 9c05f5e1f5..ca5c5510c7 100755 --- a/t/t1002-read-tree-m-u-2way.sh +++ b/t/t1002-read-tree-m-u-2way.sh @@ -8,6 +8,8 @@ test_description='Two way merge with read-tree -m -u $H $M This is identical to t1001, but uses -u to update the work tree as well. ' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-read-tree.sh diff --git a/t/t1006-cat-file.sh b/t/t1006-cat-file.sh index 658628375c..0d4c55f74e 100755 --- a/t/t1006-cat-file.sh +++ b/t/t1006-cat-file.sh @@ -452,9 +452,8 @@ test_expect_success 'the --allow-unknown-type option does not consider replaceme # Create it manually, as "git replace" will die on bogus # types. head=$(git rev-parse --verify HEAD) && - test_when_finished "rm -rf .git/refs/replace" && - mkdir -p .git/refs/replace && - echo $head >.git/refs/replace/$bogus_short_sha1 && + test_when_finished "test-tool ref-store main delete-refs 0 msg refs/replace/$bogus_short_sha1" && + test-tool ref-store main update-ref msg "refs/replace/$bogus_short_sha1" $head $ZERO_OID REF_SKIP_OID_VERIFICATION && cat >expect <<-EOF && commit diff --git a/t/t1022-read-tree-partial-clone.sh b/t/t1022-read-tree-partial-clone.sh index a763e27c7d..a9953b6a71 100755 --- a/t/t1022-read-tree-partial-clone.sh +++ b/t/t1022-read-tree-partial-clone.sh @@ -4,9 +4,6 @@ test_description='git read-tree in partial clones' TEST_NO_CREATE_REPO=1 -GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main -export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME - . ./test-lib.sh test_expect_success 'read-tree in partial clone prefetches in one batch' ' diff --git a/t/t1092-sparse-checkout-compatibility.sh b/t/t1092-sparse-checkout-compatibility.sh index 0fe5b5f482..49f70a6569 100755 --- a/t/t1092-sparse-checkout-compatibility.sh +++ b/t/t1092-sparse-checkout-compatibility.sh @@ -19,6 +19,8 @@ test_expect_success 'setup' ' mkdir folder1 folder2 deep x && mkdir deep/deeper1 deep/deeper2 deep/before deep/later && mkdir deep/deeper1/deepest && + mkdir deep/deeper1/deepest2 && + mkdir deep/deeper1/deepest3 && echo "after deeper1" >deep/e && echo "after deepest" >deep/deeper1/e && cp a folder1 && @@ -30,7 +32,9 @@ test_expect_success 'setup' ' cp a deep/deeper2 && cp a deep/later && cp a deep/deeper1/deepest && - cp -r deep/deeper1/deepest deep/deeper2 && + cp a deep/deeper1/deepest2 && + cp a deep/deeper1/deepest3 && + cp -r deep/deeper1/ deep/deeper2 && mkdir deep/deeper1/0 && mkdir deep/deeper1/0/0 && touch deep/deeper1/0/1 && @@ -126,6 +130,8 @@ test_expect_success 'setup' ' git checkout -b deepest base && echo "updated deepest" >deep/deeper1/deepest/a && + echo "updated deepest2" >deep/deeper1/deepest2/a && + echo "updated deepest3" >deep/deeper1/deepest3/a && git commit -a -m "update deepest" && git checkout -f base && @@ -301,6 +307,14 @@ test_expect_success 'add, commit, checkout' ' test_all_match git checkout - ' +test_expect_success 'deep changes during checkout' ' + init_repos && + + test_sparse_match git sparse-checkout set deep/deeper1/deepest && + test_all_match git checkout deepest && + test_all_match git checkout base +' + test_expect_success 'add outside sparse cone' ' init_repos && @@ -401,7 +415,7 @@ test_expect_success 'checkout and reset --hard' ' test_all_match git reset --hard update-folder2 ' -test_expect_success 'diff --staged' ' +test_expect_success 'diff --cached' ' init_repos && write_script edit-contents <<-\EOF && @@ -410,10 +424,10 @@ test_expect_success 'diff --staged' ' run_on_all ../edit-contents && test_all_match git diff && - test_all_match git diff --staged && + test_all_match git diff --cached && test_all_match git add README.md && test_all_match git diff && - test_all_match git diff --staged + test_all_match git diff --cached ' # NEEDSWORK: sparse-checkout behaves differently from full-checkout when @@ -430,8 +444,8 @@ test_expect_success 'diff with renames and conflicts' ' test_all_match git checkout rename-base && test_all_match git checkout $branch -- . && test_all_match git status --porcelain=v2 && - test_all_match git diff --staged --no-renames && - test_all_match git diff --staged --find-renames || return 1 + test_all_match git diff --cached --no-renames && + test_all_match git diff --cached --find-renames || return 1 done ' @@ -450,8 +464,8 @@ test_expect_success 'diff with directory/file conflicts' ' test_all_match git checkout $branch && test_all_match git checkout rename-base -- . && test_all_match git status --porcelain=v2 && - test_all_match git diff --staged --no-renames && - test_all_match git diff --staged --find-renames || return 1 + test_all_match git diff --cached --no-renames && + test_all_match git diff --cached --find-renames || return 1 done ' @@ -472,21 +486,36 @@ test_expect_success 'log with pathspec outside sparse definition' ' test_expect_success 'blame with pathspec inside sparse definition' ' init_repos && - test_all_match git blame a && - test_all_match git blame deep/a && - test_all_match git blame deep/deeper1/a && - test_all_match git blame deep/deeper1/deepest/a + for file in a \ + deep/a \ + deep/deeper1/a \ + deep/deeper1/deepest/a + do + test_all_match git blame $file + done ' -# TODO: blame currently does not support blaming files outside of the -# sparse definition. It complains that the file doesn't exist locally. -test_expect_failure 'blame with pathspec outside sparse definition' ' +# Without a revision specified, blame will error if passed any file that +# is not present in the working directory (even if the file is tracked). +# Here we just verify that this is also true with sparse checkouts. +test_expect_success 'blame with pathspec outside sparse definition' ' init_repos && + test_sparse_match git sparse-checkout set && - test_all_match git blame folder1/a && - test_all_match git blame folder2/a && - test_all_match git blame deep/deeper2/a && - test_all_match git blame deep/deeper2/deepest/a + for file in a \ + deep/a \ + deep/deeper1/a \ + deep/deeper1/deepest/a + do + test_sparse_match test_must_fail git blame $file && + cat >expect <<-EOF && + fatal: Cannot lstat '"'"'$file'"'"': No such file or directory + EOF + # We compare sparse-checkout-err and sparse-index-err in + # `test_sparse_match`. Given we know they are the same, we + # only check the content of sparse-index-err here. + test_cmp expect sparse-index-err + done ' test_expect_success 'checkout and reset (mixed)' ' @@ -784,7 +813,7 @@ test_expect_success 'submodule handling' ' test_expect_success 'sparse-index is expanded and converted back' ' init_repos && - GIT_TRACE2_EVENT="$(pwd)/trace2.txt" GIT_TRACE2_EVENT_NESTING=10 \ + GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \ git -C sparse-index reset -- folder1/a && test_region index convert_to_sparse trace2.txt && test_region index ensure_full_index trace2.txt @@ -829,10 +858,10 @@ ensure_not_expanded () { then shift && test_must_fail env \ - GIT_TRACE2_EVENT="$(pwd)/trace2.txt" GIT_TRACE2_EVENT_NESTING=10 \ + GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \ git -C sparse-index "$@" || return 1 else - GIT_TRACE2_EVENT="$(pwd)/trace2.txt" GIT_TRACE2_EVENT_NESTING=10 \ + GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \ git -C sparse-index "$@" || return 1 fi && test_region ! index ensure_full_index trace2.txt @@ -922,6 +951,64 @@ test_expect_success 'sparse-index is not expanded: merge conflict in cone' ' ) ' +test_expect_success 'sparse index is not expanded: diff' ' + init_repos && + + write_script edit-contents <<-\EOF && + echo text >>$1 + EOF + + # Add file within cone + test_sparse_match git sparse-checkout set deep && + run_on_all ../edit-contents deep/testfile && + test_all_match git add deep/testfile && + run_on_all ../edit-contents deep/testfile && + + test_all_match git diff && + test_all_match git diff --cached && + ensure_not_expanded diff && + ensure_not_expanded diff --cached && + + # Add file outside cone + test_all_match git reset --hard && + run_on_all mkdir newdirectory && + run_on_all ../edit-contents newdirectory/testfile && + test_sparse_match git sparse-checkout set newdirectory && + test_all_match git add newdirectory/testfile && + run_on_all ../edit-contents newdirectory/testfile && + test_sparse_match git sparse-checkout set && + + test_all_match git diff && + test_all_match git diff --cached && + ensure_not_expanded diff && + ensure_not_expanded diff --cached && + + # Merge conflict outside cone + # The sparse checkout will report a warning that is not in the + # full checkout, so we use `run_on_all` instead of + # `test_all_match` + run_on_all git reset --hard && + test_all_match git checkout merge-left && + test_all_match test_must_fail git merge merge-right && + + test_all_match git diff && + test_all_match git diff --cached && + ensure_not_expanded diff && + ensure_not_expanded diff --cached +' + +test_expect_success 'sparse index is not expanded: blame' ' + init_repos && + + for file in a \ + deep/a \ + deep/deeper1/a \ + deep/deeper1/deepest/a + do + ensure_not_expanded blame $file + done +' + # NEEDSWORK: a sparse-checkout behaves differently from a full checkout # in this scenario, but it shouldn't. test_expect_success 'reset mixed and checkout orphan' ' diff --git a/t/t1300-config.sh b/t/t1300-config.sh index 9ff46f3b04..f8031afaaf 100755 --- a/t/t1300-config.sh +++ b/t/t1300-config.sh @@ -8,6 +8,7 @@ test_description='Test git config in different settings' GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'clear default config' ' diff --git a/t/t1303-wacky-config.sh b/t/t1303-wacky-config.sh index 0000e664e7..0506f3d6bb 100755 --- a/t/t1303-wacky-config.sh +++ b/t/t1303-wacky-config.sh @@ -1,6 +1,8 @@ #!/bin/sh test_description='Test wacky input to git config' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh # Leaving off the newline is intentional! diff --git a/t/t1307-config-blob.sh b/t/t1307-config-blob.sh index 930dce06f0..0a7099d6f5 100755 --- a/t/t1307-config-blob.sh +++ b/t/t1307-config-blob.sh @@ -1,6 +1,8 @@ #!/bin/sh test_description='support for reading config from a blob' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'create config blob' ' diff --git a/t/t1308-config-set.sh b/t/t1308-config-set.sh index 88b119a0a3..b38e158d3b 100755 --- a/t/t1308-config-set.sh +++ b/t/t1308-config-set.sh @@ -2,6 +2,7 @@ test_description='Test git config-set API in different settings' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh # 'check_config get_* section.key value' verifies that the entry for diff --git a/t/t1309-early-config.sh b/t/t1309-early-config.sh index b4a9158307..537435b90a 100755 --- a/t/t1309-early-config.sh +++ b/t/t1309-early-config.sh @@ -2,6 +2,7 @@ test_description='Test read_early_config()' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'read early config' ' diff --git a/t/t1310-config-default.sh b/t/t1310-config-default.sh index 6049d91708..09b10c144b 100755 --- a/t/t1310-config-default.sh +++ b/t/t1310-config-default.sh @@ -2,6 +2,7 @@ test_description='Test git config in different settings (with --default)' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'uses --default when entry missing' ' diff --git a/t/t1400-update-ref.sh b/t/t1400-update-ref.sh index 0d4f73acaa..640659c9d7 100755 --- a/t/t1400-update-ref.sh +++ b/t/t1400-update-ref.sh @@ -4,9 +4,6 @@ # test_description='Test git update-ref and basic ref logging' -GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main -export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME - . ./test-lib.sh Z=$ZERO_OID @@ -321,8 +318,9 @@ $A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150260 +0000 Switch $B $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150860 +0000 EOF test_expect_success "verifying $m's log (logged by touch)" ' - test_when_finished "rm -rf .git/$m .git/logs expect" && - test_cmp expect .git/logs/$m + test_when_finished "git update-ref -d $m && rm -rf .git/logs actual expect" && + test-tool ref-store main for-each-reflog-ent $m >actual && + test_cmp actual expect ' test_expect_success "create $m (logged by config)" ' @@ -350,8 +348,9 @@ $A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150380 +0000 Switch $B $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150980 +0000 EOF test_expect_success "verifying $m's log (logged by config)" ' - test_when_finished "rm -f .git/$m .git/logs/$m expect" && - test_cmp expect .git/logs/$m + test_when_finished "git update-ref -d $m && rm -rf .git/logs actual expect" && + test-tool ref-store main for-each-reflog-ent $m >actual && + test_cmp actual expect ' test_expect_success 'set up for querying the reflog' ' @@ -467,7 +466,8 @@ $h_OTHER $h_FIXED $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117151040 +0000 co $h_FIXED $h_MERGED $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117151100 +0000 commit (merge): Merged initial commit and a later commit. EOF test_expect_success 'git commit logged updates' ' - test_cmp expect .git/logs/$m + test-tool ref-store main for-each-reflog-ent $m >actual && + test_cmp expect actual ' unset h_TEST h_OTHER h_FIXED h_MERGED diff --git a/t/t1404-update-ref-errors.sh b/t/t1404-update-ref-errors.sh index b729c1f480..13c2b43bba 100755 --- a/t/t1404-update-ref-errors.sh +++ b/t/t1404-update-ref-errors.sh @@ -261,69 +261,69 @@ test_expect_success REFFILES 'empty directory should not fool 1-arg delete' ' git update-ref --stdin ' -test_expect_success 'D/F conflict prevents add long + delete short' ' +test_expect_success REFFILES 'D/F conflict prevents add long + delete short' ' df_test refs/df-al-ds --add-del foo/bar foo ' -test_expect_success 'D/F conflict prevents add short + delete long' ' +test_expect_success REFFILES 'D/F conflict prevents add short + delete long' ' df_test refs/df-as-dl --add-del foo foo/bar ' -test_expect_success 'D/F conflict prevents delete long + add short' ' +test_expect_success REFFILES 'D/F conflict prevents delete long + add short' ' df_test refs/df-dl-as --del-add foo/bar foo ' -test_expect_success 'D/F conflict prevents delete short + add long' ' +test_expect_success REFFILES 'D/F conflict prevents delete short + add long' ' df_test refs/df-ds-al --del-add foo foo/bar ' -test_expect_success 'D/F conflict prevents add long + delete short packed' ' +test_expect_success REFFILES 'D/F conflict prevents add long + delete short packed' ' df_test refs/df-al-dsp --pack --add-del foo/bar foo ' -test_expect_success 'D/F conflict prevents add short + delete long packed' ' +test_expect_success REFFILES 'D/F conflict prevents add short + delete long packed' ' df_test refs/df-as-dlp --pack --add-del foo foo/bar ' -test_expect_success 'D/F conflict prevents delete long packed + add short' ' +test_expect_success REFFILES 'D/F conflict prevents delete long packed + add short' ' df_test refs/df-dlp-as --pack --del-add foo/bar foo ' -test_expect_success 'D/F conflict prevents delete short packed + add long' ' +test_expect_success REFFILES 'D/F conflict prevents delete short packed + add long' ' df_test refs/df-dsp-al --pack --del-add foo foo/bar ' # Try some combinations involving symbolic refs... -test_expect_success 'D/F conflict prevents indirect add long + delete short' ' +test_expect_success REFFILES 'D/F conflict prevents indirect add long + delete short' ' df_test refs/df-ial-ds --sym-add --add-del foo/bar foo ' -test_expect_success 'D/F conflict prevents indirect add long + indirect delete short' ' +test_expect_success REFFILES 'D/F conflict prevents indirect add long + indirect delete short' ' df_test refs/df-ial-ids --sym-add --sym-del --add-del foo/bar foo ' -test_expect_success 'D/F conflict prevents indirect add short + indirect delete long' ' +test_expect_success REFFILES 'D/F conflict prevents indirect add short + indirect delete long' ' df_test refs/df-ias-idl --sym-add --sym-del --add-del foo foo/bar ' -test_expect_success 'D/F conflict prevents indirect delete long + indirect add short' ' +test_expect_success REFFILES 'D/F conflict prevents indirect delete long + indirect add short' ' df_test refs/df-idl-ias --sym-add --sym-del --del-add foo/bar foo ' -test_expect_success 'D/F conflict prevents indirect add long + delete short packed' ' +test_expect_success REFFILES 'D/F conflict prevents indirect add long + delete short packed' ' df_test refs/df-ial-dsp --sym-add --pack --add-del foo/bar foo ' -test_expect_success 'D/F conflict prevents indirect add long + indirect delete short packed' ' +test_expect_success REFFILES 'D/F conflict prevents indirect add long + indirect delete short packed' ' df_test refs/df-ial-idsp --sym-add --sym-del --pack --add-del foo/bar foo ' -test_expect_success 'D/F conflict prevents add long + indirect delete short packed' ' +test_expect_success REFFILES 'D/F conflict prevents add long + indirect delete short packed' ' df_test refs/df-al-idsp --sym-del --pack --add-del foo/bar foo ' -test_expect_success 'D/F conflict prevents indirect delete long packed + indirect add short' ' +test_expect_success REFFILES 'D/F conflict prevents indirect delete long packed + indirect add short' ' df_test refs/df-idlp-ias --sym-add --sym-del --pack --del-add foo/bar foo ' diff --git a/t/t1405-main-ref-store.sh b/t/t1405-main-ref-store.sh index c89cef2d26..1a3ee8845d 100755 --- a/t/t1405-main-ref-store.sh +++ b/t/t1405-main-ref-store.sh @@ -17,8 +17,7 @@ test_expect_success 'setup' ' test_expect_success REFFILES 'pack_refs(PACK_REFS_ALL | PACK_REFS_PRUNE)' ' N=`find .git/refs -type f | wc -l` && test "$N" != 0 && - ALL_OR_PRUNE_FLAG=3 && - $RUN pack-refs ${ALL_OR_PRUNE_FLAG} && + $RUN pack-refs PACK_REFS_PRUNE,PACK_REFS_ALL && N=`find .git/refs -type f` && test -z "$N" ' @@ -35,8 +34,7 @@ test_expect_success 'delete_refs(FOO, refs/tags/new-tag)' ' git rev-parse FOO -- && git rev-parse refs/tags/new-tag -- && m=$(git rev-parse main) && - REF_NO_DEREF=1 && - $RUN delete-refs $REF_NO_DEREF nothing FOO refs/tags/new-tag && + $RUN delete-refs REF_NO_DEREF nothing FOO refs/tags/new-tag && test_must_fail git rev-parse --symbolic-full-name FOO && test_must_fail git rev-parse FOO -- && test_must_fail git rev-parse refs/tags/new-tag -- @@ -89,13 +87,13 @@ test_expect_success 'for_each_reflog()' ' test_expect_success 'for_each_reflog_ent()' ' $RUN for-each-reflog-ent HEAD >actual && head -n1 actual | grep one && - tail -n2 actual | head -n1 | grep recreate-main + tail -n1 actual | grep recreate-main ' test_expect_success 'for_each_reflog_ent_reverse()' ' $RUN for-each-reflog-ent-reverse HEAD >actual && head -n1 actual | grep recreate-main && - tail -n2 actual | head -n1 | grep one + tail -n1 actual | grep one ' test_expect_success 'reflog_exists(HEAD)' ' diff --git a/t/t1406-submodule-ref-store.sh b/t/t1406-submodule-ref-store.sh index c95c5d47aa..e6a7f7334b 100755 --- a/t/t1406-submodule-ref-store.sh +++ b/t/t1406-submodule-ref-store.sh @@ -75,13 +75,13 @@ test_expect_success 'for_each_reflog()' ' test_expect_success 'for_each_reflog_ent()' ' $RUN for-each-reflog-ent HEAD >actual && head -n1 actual | grep first && - tail -n2 actual | head -n1 | grep main.to.new + tail -n1 actual | grep main.to.new ' test_expect_success 'for_each_reflog_ent_reverse()' ' $RUN for-each-reflog-ent-reverse HEAD >actual && head -n1 actual | grep main.to.new && - tail -n2 actual | head -n1 | grep first + tail -n1 actual | grep first ' test_expect_success 'reflog_exists(HEAD)' ' diff --git a/t/t1420-lost-found.sh b/t/t1420-lost-found.sh index dc9e402c55..dbe15a0be1 100755 --- a/t/t1420-lost-found.sh +++ b/t/t1420-lost-found.sh @@ -4,6 +4,8 @@ # test_description='Test fsck --lost-found' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t1430-bad-ref-name.sh b/t/t1430-bad-ref-name.sh index 4c77cf89a6..ff1c967d55 100755 --- a/t/t1430-bad-ref-name.sh +++ b/t/t1430-bad-ref-name.sh @@ -9,7 +9,8 @@ TEST_PASSES_SANITIZE_LEAK=true test_expect_success setup ' test_commit one && - test_commit two + test_commit two && + main_sha1=$(git rev-parse refs/heads/main) ' test_expect_success 'fast-import: fail on invalid branch name ".badbranchname"' ' @@ -43,16 +44,16 @@ test_expect_success 'fast-import: fail on invalid branch name "bad[branch]name"' ' test_expect_success 'git branch shows badly named ref as warning' ' - cp .git/refs/heads/main .git/refs/heads/broken...ref && - test_when_finished "rm -f .git/refs/heads/broken...ref" && + test-tool ref-store main update-ref msg "refs/heads/broken...ref" $main_sha1 $ZERO_OID REF_SKIP_REFNAME_VERIFICATION && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...ref" && git branch >output 2>error && test_i18ngrep -e "ignoring ref with broken name refs/heads/broken\.\.\.ref" error && ! grep -e "broken\.\.\.ref" output ' test_expect_success 'branch -d can delete badly named ref' ' - cp .git/refs/heads/main .git/refs/heads/broken...ref && - test_when_finished "rm -f .git/refs/heads/broken...ref" && + test-tool ref-store main update-ref msg "refs/heads/broken...ref" $main_sha1 $ZERO_OID REF_SKIP_REFNAME_VERIFICATION && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...ref" && git branch -d broken...ref && git branch >output 2>error && ! grep -e "broken\.\.\.ref" error && @@ -60,8 +61,8 @@ test_expect_success 'branch -d can delete badly named ref' ' ' test_expect_success 'branch -D can delete badly named ref' ' - cp .git/refs/heads/main .git/refs/heads/broken...ref && - test_when_finished "rm -f .git/refs/heads/broken...ref" && + test-tool ref-store main update-ref msg "refs/heads/broken...ref" $main_sha1 $ZERO_OID REF_SKIP_REFNAME_VERIFICATION && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...ref" && git branch -D broken...ref && git branch >output 2>error && ! grep -e "broken\.\.\.ref" error && @@ -90,7 +91,7 @@ test_expect_success 'branch -D cannot delete absolute path' ' ' test_expect_success 'git branch cannot create a badly named ref' ' - test_when_finished "rm -f .git/refs/heads/broken...ref" && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...ref" && test_must_fail git branch broken...ref && git branch >output 2>error && ! grep -e "broken\.\.\.ref" error && @@ -98,7 +99,7 @@ test_expect_success 'git branch cannot create a badly named ref' ' ' test_expect_success 'branch -m cannot rename to a bad ref name' ' - test_when_finished "rm -f .git/refs/heads/broken...ref" && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...ref" && test_might_fail git branch -D goodref && git branch goodref && test_must_fail git branch -m goodref broken...ref && @@ -109,8 +110,9 @@ test_expect_success 'branch -m cannot rename to a bad ref name' ' ' test_expect_failure 'branch -m can rename from a bad ref name' ' - cp .git/refs/heads/main .git/refs/heads/broken...ref && - test_when_finished "rm -f .git/refs/heads/broken...ref" && + test-tool ref-store main update-ref msg "refs/heads/broken...ref" $main_sha1 $ZERO_OID REF_SKIP_REFNAME_VERIFICATION && + + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...ref" && git branch -m broken...ref renamed && test_cmp_rev main renamed && git branch >output 2>error && @@ -119,7 +121,7 @@ test_expect_failure 'branch -m can rename from a bad ref name' ' ' test_expect_success 'push cannot create a badly named ref' ' - test_when_finished "rm -f .git/refs/heads/broken...ref" && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...ref" && test_must_fail git push "file://$(pwd)" HEAD:refs/heads/broken...ref && git branch >output 2>error && ! grep -e "broken\.\.\.ref" error && @@ -139,7 +141,7 @@ test_expect_failure 'push --mirror can delete badly named ref' ' cd dest && test_commit two && git checkout --detach && - cp .git/refs/heads/main .git/refs/heads/broken...ref + test-tool ref-store main update-ref msg "refs/heads/broken...ref" $main_sha1 $ZERO_OID REF_SKIP_REFNAME_VERIFICATION ) && git -C src push --mirror "file://$top/dest" && git -C dest branch >output 2>error && @@ -148,11 +150,11 @@ test_expect_failure 'push --mirror can delete badly named ref' ' ' test_expect_success 'rev-parse skips symref pointing to broken name' ' - test_when_finished "rm -f .git/refs/heads/broken...ref" && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...ref" && git branch shadow one && - cp .git/refs/heads/main .git/refs/heads/broken...ref && - printf "ref: refs/heads/broken...ref\n" >.git/refs/tags/shadow && - test_when_finished "rm -f .git/refs/tags/shadow" && + test-tool ref-store main update-ref msg "refs/heads/broken...ref" $main_sha1 $ZERO_OID REF_SKIP_REFNAME_VERIFICATION && + test-tool ref-store main create-symref refs/tags/shadow refs/heads/broken...ref msg && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/tags/shadow" && git rev-parse --verify one >expect && git rev-parse --verify shadow >actual 2>err && test_cmp expect actual && @@ -160,12 +162,12 @@ test_expect_success 'rev-parse skips symref pointing to broken name' ' ' test_expect_success 'for-each-ref emits warnings for broken names' ' - cp .git/refs/heads/main .git/refs/heads/broken...ref && - test_when_finished "rm -f .git/refs/heads/broken...ref" && + test-tool ref-store main update-ref msg "refs/heads/broken...ref" $main_sha1 $ZERO_OID REF_SKIP_REFNAME_VERIFICATION && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...ref" && printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname && - test_when_finished "rm -f .git/refs/heads/badname" && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/badname" && printf "ref: refs/heads/main\n" >.git/refs/heads/broken...symref && - test_when_finished "rm -f .git/refs/heads/broken...symref" && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...symref" && git for-each-ref >output 2>error && ! grep -e "broken\.\.\.ref" output && ! grep -e "badname" output && @@ -176,8 +178,8 @@ test_expect_success 'for-each-ref emits warnings for broken names' ' ' test_expect_success 'update-ref -d can delete broken name' ' - cp .git/refs/heads/main .git/refs/heads/broken...ref && - test_when_finished "rm -f .git/refs/heads/broken...ref" && + test-tool ref-store main update-ref msg "refs/heads/broken...ref" $main_sha1 $ZERO_OID REF_SKIP_REFNAME_VERIFICATION && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...ref" && git update-ref -d refs/heads/broken...ref >output 2>error && test_must_be_empty output && test_must_be_empty error && @@ -187,8 +189,8 @@ test_expect_success 'update-ref -d can delete broken name' ' ' test_expect_success 'branch -d can delete broken name' ' - cp .git/refs/heads/main .git/refs/heads/broken...ref && - test_when_finished "rm -f .git/refs/heads/broken...ref" && + test-tool ref-store main update-ref msg "refs/heads/broken...ref" $main_sha1 $ZERO_OID REF_SKIP_REFNAME_VERIFICATION && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...ref" && git branch -d broken...ref >output 2>error && test_i18ngrep "Deleted branch broken...ref (was broken)" output && test_must_be_empty error && @@ -198,10 +200,11 @@ test_expect_success 'branch -d can delete broken name' ' ' test_expect_success 'update-ref --no-deref -d can delete symref to broken name' ' - cp .git/refs/heads/main .git/refs/heads/broken...ref && - test_when_finished "rm -f .git/refs/heads/broken...ref" && - printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname && - test_when_finished "rm -f .git/refs/heads/badname" && + test-tool ref-store main update-ref msg "refs/heads/broken...ref" $main_sha1 $ZERO_OID REF_SKIP_REFNAME_VERIFICATION && + + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...ref" && + test-tool ref-store main create-symref refs/heads/badname refs/heads/broken...ref msg && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/badname" && git update-ref --no-deref -d refs/heads/badname >output 2>error && test_path_is_missing .git/refs/heads/badname && test_must_be_empty output && @@ -209,10 +212,10 @@ test_expect_success 'update-ref --no-deref -d can delete symref to broken name' ' test_expect_success 'branch -d can delete symref to broken name' ' - cp .git/refs/heads/main .git/refs/heads/broken...ref && - test_when_finished "rm -f .git/refs/heads/broken...ref" && - printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname && - test_when_finished "rm -f .git/refs/heads/badname" && + test-tool ref-store main update-ref msg "refs/heads/broken...ref" $main_sha1 $ZERO_OID REF_SKIP_REFNAME_VERIFICATION && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...ref" && + test-tool ref-store main create-symref refs/heads/badname refs/heads/broken...ref msg && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/badname" && git branch -d badname >output 2>error && test_path_is_missing .git/refs/heads/badname && test_i18ngrep "Deleted branch badname (was refs/heads/broken\.\.\.ref)" output && @@ -220,8 +223,8 @@ test_expect_success 'branch -d can delete symref to broken name' ' ' test_expect_success 'update-ref --no-deref -d can delete dangling symref to broken name' ' - printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname && - test_when_finished "rm -f .git/refs/heads/badname" && + test-tool ref-store main create-symref refs/heads/badname refs/heads/broken...ref msg && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/badname" && git update-ref --no-deref -d refs/heads/badname >output 2>error && test_path_is_missing .git/refs/heads/badname && test_must_be_empty output && @@ -229,8 +232,8 @@ test_expect_success 'update-ref --no-deref -d can delete dangling symref to brok ' test_expect_success 'branch -d can delete dangling symref to broken name' ' - printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname && - test_when_finished "rm -f .git/refs/heads/badname" && + test-tool ref-store main create-symref refs/heads/badname refs/heads/broken...ref msg && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/badname" && git branch -d badname >output 2>error && test_path_is_missing .git/refs/heads/badname && test_i18ngrep "Deleted branch badname (was refs/heads/broken\.\.\.ref)" output && @@ -238,10 +241,10 @@ test_expect_success 'branch -d can delete dangling symref to broken name' ' ' test_expect_success 'update-ref -d can delete broken name through symref' ' - cp .git/refs/heads/main .git/refs/heads/broken...ref && - test_when_finished "rm -f .git/refs/heads/broken...ref" && - printf "ref: refs/heads/broken...ref\n" >.git/refs/heads/badname && - test_when_finished "rm -f .git/refs/heads/badname" && + test-tool ref-store main update-ref msg "refs/heads/broken...ref" $main_sha1 $ZERO_OID REF_SKIP_REFNAME_VERIFICATION && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...ref" && + test-tool ref-store main create-symref refs/heads/badname refs/heads/broken...ref msg && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/badname" && git update-ref -d refs/heads/badname >output 2>error && test_path_is_missing .git/refs/heads/broken...ref && test_must_be_empty output && @@ -250,7 +253,7 @@ test_expect_success 'update-ref -d can delete broken name through symref' ' test_expect_success 'update-ref --no-deref -d can delete symref with broken name' ' printf "ref: refs/heads/main\n" >.git/refs/heads/broken...symref && - test_when_finished "rm -f .git/refs/heads/broken...symref" && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...symref" && git update-ref --no-deref -d refs/heads/broken...symref >output 2>error && test_path_is_missing .git/refs/heads/broken...symref && test_must_be_empty output && @@ -259,7 +262,7 @@ test_expect_success 'update-ref --no-deref -d can delete symref with broken name test_expect_success 'branch -d can delete symref with broken name' ' printf "ref: refs/heads/main\n" >.git/refs/heads/broken...symref && - test_when_finished "rm -f .git/refs/heads/broken...symref" && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...symref" && git branch -d broken...symref >output 2>error && test_path_is_missing .git/refs/heads/broken...symref && test_i18ngrep "Deleted branch broken...symref (was refs/heads/main)" output && @@ -268,7 +271,7 @@ test_expect_success 'branch -d can delete symref with broken name' ' test_expect_success 'update-ref --no-deref -d can delete dangling symref with broken name' ' printf "ref: refs/heads/idonotexist\n" >.git/refs/heads/broken...symref && - test_when_finished "rm -f .git/refs/heads/broken...symref" && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...symref" && git update-ref --no-deref -d refs/heads/broken...symref >output 2>error && test_path_is_missing .git/refs/heads/broken...symref && test_must_be_empty output && @@ -277,7 +280,7 @@ test_expect_success 'update-ref --no-deref -d can delete dangling symref with br test_expect_success 'branch -d can delete dangling symref with broken name' ' printf "ref: refs/heads/idonotexist\n" >.git/refs/heads/broken...symref && - test_when_finished "rm -f .git/refs/heads/broken...symref" && + test_when_finished "test-tool ref-store main delete-refs REF_NO_DEREF msg refs/heads/broken...symref" && git branch -d broken...symref >output 2>error && test_path_is_missing .git/refs/heads/broken...symref && test_i18ngrep "Deleted branch broken...symref (was refs/heads/idonotexist)" output && diff --git a/t/t1503-rev-parse-verify.sh b/t/t1503-rev-parse-verify.sh index 40958615eb..94fe413ee3 100755 --- a/t/t1503-rev-parse-verify.sh +++ b/t/t1503-rev-parse-verify.sh @@ -9,6 +9,7 @@ exec </dev/null GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh add_line_into_file() diff --git a/t/t1506-rev-parse-diagnosis.sh b/t/t1506-rev-parse-diagnosis.sh index 65a154a8a2..18688cae17 100755 --- a/t/t1506-rev-parse-diagnosis.sh +++ b/t/t1506-rev-parse-diagnosis.sh @@ -7,6 +7,7 @@ exec </dev/null GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_did_you_mean () diff --git a/t/t1513-rev-parse-prefix.sh b/t/t1513-rev-parse-prefix.sh index 5f437be8c9..ba43387bf1 100755 --- a/t/t1513-rev-parse-prefix.sh +++ b/t/t1513-rev-parse-prefix.sh @@ -5,6 +5,7 @@ test_description='Tests for rev-parse --prefix' GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'setup' ' diff --git a/t/t1515-rev-parse-outside-repo.sh b/t/t1515-rev-parse-outside-repo.sh index 3ec2971ee5..cdb26a30d7 100755 --- a/t/t1515-rev-parse-outside-repo.sh +++ b/t/t1515-rev-parse-outside-repo.sh @@ -1,6 +1,8 @@ #!/bin/sh test_description='check that certain rev-parse options work outside repo' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'set up non-repo directory' ' diff --git a/t/t1600-index.sh b/t/t1600-index.sh index 46329c488b..010989f90e 100755 --- a/t/t1600-index.sh +++ b/t/t1600-index.sh @@ -2,6 +2,7 @@ test_description='index file specific tests' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh sane_unset GIT_TEST_SPLIT_INDEX diff --git a/t/t2000-conflict-when-checking-files-out.sh b/t/t2000-conflict-when-checking-files-out.sh index f18616ad2b..79fc97f1d7 100755 --- a/t/t2000-conflict-when-checking-files-out.sh +++ b/t/t2000-conflict-when-checking-files-out.sh @@ -21,6 +21,7 @@ test_description='git conflicts when checking files out test.' # path1 is occupied by a non-directory. With "-f" flag, it should remove # the conflicting paths and succeed. +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh show_files() { diff --git a/t/t2018-checkout-branch.sh b/t/t2018-checkout-branch.sh index 93be1c0eae..3e93506c04 100755 --- a/t/t2018-checkout-branch.sh +++ b/t/t2018-checkout-branch.sh @@ -148,7 +148,7 @@ test_expect_success 'checkout -b to an existing branch fails' ' test_expect_success 'checkout -b to @{-1} fails with the right branch name' ' git checkout branch1 && git checkout branch2 && - echo >expect "fatal: A branch named '\''branch1'\'' already exists." && + echo >expect "fatal: a branch named '\''branch1'\'' already exists" && test_must_fail git checkout -b @{-1} 2>actual && test_cmp expect actual ' diff --git a/t/t2100-update-cache-badpath.sh b/t/t2100-update-cache-badpath.sh index 2df3fdde8b..7915e7b821 100755 --- a/t/t2100-update-cache-badpath.sh +++ b/t/t2100-update-cache-badpath.sh @@ -22,6 +22,7 @@ and tries to git update-index --add the following: All of the attempts should fail. ' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh mkdir path2 path3 diff --git a/t/t2101-update-index-reupdate.sh b/t/t2101-update-index-reupdate.sh index 6c32d42c8c..e3c7acdbf9 100755 --- a/t/t2101-update-index-reupdate.sh +++ b/t/t2101-update-index-reupdate.sh @@ -6,6 +6,7 @@ test_description='git update-index --again test. ' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'update-index --add' ' diff --git a/t/t2102-update-index-symlinks.sh b/t/t2102-update-index-symlinks.sh index 22f2c730ae..d7a3485582 100755 --- a/t/t2102-update-index-symlinks.sh +++ b/t/t2102-update-index-symlinks.sh @@ -8,6 +8,7 @@ test_description='git update-index on filesystem w/o symlinks test. This tests that git update-index keeps the symbolic link property even if a plain file is in the working tree if core.symlinks is false.' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success \ diff --git a/t/t2103-update-index-ignore-missing.sh b/t/t2103-update-index-ignore-missing.sh index 0114f05228..b304714fdb 100755 --- a/t/t2103-update-index-ignore-missing.sh +++ b/t/t2103-update-index-ignore-missing.sh @@ -2,6 +2,7 @@ test_description='update-index with options' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success basics ' diff --git a/t/t2104-update-index-skip-worktree.sh b/t/t2104-update-index-skip-worktree.sh index 30666fc70d..b8686aabd3 100755 --- a/t/t2104-update-index-skip-worktree.sh +++ b/t/t2104-update-index-skip-worktree.sh @@ -5,6 +5,7 @@ test_description='skip-worktree bit test' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh sane_unset GIT_TEST_SPLIT_INDEX diff --git a/t/t2105-update-index-gitfile.sh b/t/t2105-update-index-gitfile.sh index a7f3d47aec..963ebe77eb 100755 --- a/t/t2105-update-index-gitfile.sh +++ b/t/t2105-update-index-gitfile.sh @@ -6,6 +6,7 @@ test_description='git update-index for gitlink to .git file. ' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'submodule with absolute .git file' ' diff --git a/t/t2200-add-update.sh b/t/t2200-add-update.sh index 94c4cb0672..a8297c2943 100755 --- a/t/t2200-add-update.sh +++ b/t/t2200-add-update.sh @@ -14,6 +14,7 @@ only the updates to dir/sub. Also tested are "git add -u" without limiting, and "git add -u" without contents changes, and other conditions' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t2201-add-update-typechange.sh b/t/t2201-add-update-typechange.sh index a4eec0a346..c6876b120f 100755 --- a/t/t2201-add-update-typechange.sh +++ b/t/t2201-add-update-typechange.sh @@ -2,6 +2,7 @@ test_description='more git add -u' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t2202-add-addremove.sh b/t/t2202-add-addremove.sh index 9ee659098c..24c60bfd79 100755 --- a/t/t2202-add-addremove.sh +++ b/t/t2202-add-addremove.sh @@ -2,6 +2,7 @@ test_description='git add --all' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t2204-add-ignored.sh b/t/t2204-add-ignored.sh index 2e07365bbb..89424abccd 100755 --- a/t/t2204-add-ignored.sh +++ b/t/t2204-add-ignored.sh @@ -2,6 +2,7 @@ test_description='giving ignored paths to git add' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t2401-worktree-prune.sh b/t/t2401-worktree-prune.sh index a615d3b483..3d28c7f06b 100755 --- a/t/t2401-worktree-prune.sh +++ b/t/t2401-worktree-prune.sh @@ -19,7 +19,7 @@ test_expect_success 'worktree prune on normal repo' ' test_expect_success 'prune files inside $GIT_DIR/worktrees' ' mkdir .git/worktrees && : >.git/worktrees/abc && - git worktree prune --verbose >actual && + git worktree prune --verbose 2>actual && cat >expect <<EOF && Removing worktrees/abc: not a valid directory EOF @@ -34,7 +34,7 @@ test_expect_success 'prune directories without gitdir' ' cat >expect <<EOF && Removing worktrees/def: gitdir file does not exist EOF - git worktree prune --verbose >actual && + git worktree prune --verbose 2>actual && test_cmp expect actual && ! test -d .git/worktrees/def && ! test -d .git/worktrees @@ -45,7 +45,7 @@ test_expect_success SANITY 'prune directories with unreadable gitdir' ' : >.git/worktrees/def/def && : >.git/worktrees/def/gitdir && chmod u-r .git/worktrees/def/gitdir && - git worktree prune --verbose >actual && + git worktree prune --verbose 2>actual && test_i18ngrep "Removing worktrees/def: unable to read gitdir file" actual && ! test -d .git/worktrees/def && ! test -d .git/worktrees @@ -55,7 +55,7 @@ test_expect_success 'prune directories with invalid gitdir' ' mkdir -p .git/worktrees/def/abc && : >.git/worktrees/def/def && : >.git/worktrees/def/gitdir && - git worktree prune --verbose >actual && + git worktree prune --verbose 2>actual && test_i18ngrep "Removing worktrees/def: invalid gitdir file" actual && ! test -d .git/worktrees/def && ! test -d .git/worktrees @@ -65,7 +65,7 @@ test_expect_success 'prune directories with gitdir pointing to nowhere' ' mkdir -p .git/worktrees/def/abc && : >.git/worktrees/def/def && echo "$(pwd)"/nowhere >.git/worktrees/def/gitdir && - git worktree prune --verbose >actual && + git worktree prune --verbose 2>actual && test_i18ngrep "Removing worktrees/def: gitdir file points to non-existent location" actual && ! test -d .git/worktrees/def && ! test -d .git/worktrees @@ -101,7 +101,7 @@ test_expect_success 'prune duplicate (linked/linked)' ' git worktree add --detach w2 && sed "s/w2/w1/" .git/worktrees/w2/gitdir >.git/worktrees/w2/gitdir.new && mv .git/worktrees/w2/gitdir.new .git/worktrees/w2/gitdir && - git worktree prune --verbose >actual && + git worktree prune --verbose 2>actual && test_i18ngrep "duplicate entry" actual && test -d .git/worktrees/w1 && ! test -d .git/worktrees/w2 @@ -114,7 +114,7 @@ test_expect_success 'prune duplicate (main/linked)' ' git -C repo worktree add --detach ../wt && rm -fr wt && mv repo wt && - git -C wt worktree prune --verbose >actual && + git -C wt worktree prune --verbose 2>actual && test_i18ngrep "duplicate entry" actual && ! test -d .git/worktrees/wt ' diff --git a/t/t2402-worktree-list.sh b/t/t2402-worktree-list.sh index 4012bd67b0..c8a5a0aac6 100755 --- a/t/t2402-worktree-list.sh +++ b/t/t2402-worktree-list.sh @@ -134,7 +134,7 @@ test_expect_success '"list" all worktrees with prunable consistent with "prune"' git worktree list >out && grep "/prunable *[0-9a-f].* prunable$" out && ! grep "/unprunable *[0-9a-f].* unprunable$" out && - git worktree prune --verbose >out && + git worktree prune --verbose 2>out && test_i18ngrep "^Removing worktrees/prunable" out && test_i18ngrep ! "^Removing worktrees/unprunable" out ' diff --git a/t/t2404-worktree-config.sh b/t/t2404-worktree-config.sh index 9536d10919..842937bfb9 100755 --- a/t/t2404-worktree-config.sh +++ b/t/t2404-worktree-config.sh @@ -2,6 +2,7 @@ test_description="config file in multi worktree" +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'setup' ' diff --git a/t/t2406-worktree-repair.sh b/t/t2406-worktree-repair.sh index f73741886b..5c44453e1c 100755 --- a/t/t2406-worktree-repair.sh +++ b/t/t2406-worktree-repair.sh @@ -45,9 +45,8 @@ test_corrupt_gitfile () { git worktree add --detach corrupt && git -C corrupt rev-parse --absolute-git-dir >expect && eval "$butcher" && - git -C "$repairdir" worktree repair >out 2>err && - test_i18ngrep "$problem" out && - test_must_be_empty err && + git -C "$repairdir" worktree repair 2>err && + test_i18ngrep "$problem" err && git -C corrupt rev-parse --absolute-git-dir >actual && test_cmp expect actual } @@ -130,10 +129,9 @@ test_expect_success 'repair broken gitdir' ' sed s,orig/\.git$,moved/.git, .git/worktrees/orig/gitdir >expect && rm .git/worktrees/orig/gitdir && mv orig moved && - git worktree repair moved >out 2>err && + git worktree repair moved 2>err && test_cmp expect .git/worktrees/orig/gitdir && - test_i18ngrep "gitdir unreadable" out && - test_must_be_empty err + test_i18ngrep "gitdir unreadable" err ' test_expect_success 'repair incorrect gitdir' ' @@ -141,10 +139,9 @@ test_expect_success 'repair incorrect gitdir' ' git worktree add --detach orig && sed s,orig/\.git$,moved/.git, .git/worktrees/orig/gitdir >expect && mv orig moved && - git worktree repair moved >out 2>err && + git worktree repair moved 2>err && test_cmp expect .git/worktrees/orig/gitdir && - test_i18ngrep "gitdir incorrect" out && - test_must_be_empty err + test_i18ngrep "gitdir incorrect" err ' test_expect_success 'repair gitdir (implicit) from linked worktree' ' @@ -152,10 +149,9 @@ test_expect_success 'repair gitdir (implicit) from linked worktree' ' git worktree add --detach orig && sed s,orig/\.git$,moved/.git, .git/worktrees/orig/gitdir >expect && mv orig moved && - git -C moved worktree repair >out 2>err && + git -C moved worktree repair 2>err && test_cmp expect .git/worktrees/orig/gitdir && - test_i18ngrep "gitdir incorrect" out && - test_must_be_empty err + test_i18ngrep "gitdir incorrect" err ' test_expect_success 'unable to repair gitdir (implicit) from main worktree' ' @@ -163,9 +159,8 @@ test_expect_success 'unable to repair gitdir (implicit) from main worktree' ' git worktree add --detach orig && cat .git/worktrees/orig/gitdir >expect && mv orig moved && - git worktree repair >out 2>err && + git worktree repair 2>err && test_cmp expect .git/worktrees/orig/gitdir && - test_must_be_empty out && test_must_be_empty err ' @@ -178,12 +173,11 @@ test_expect_success 'repair multiple gitdir files' ' sed s,orig2/\.git$,moved2/.git, .git/worktrees/orig2/gitdir >expect2 && mv orig1 moved1 && mv orig2 moved2 && - git worktree repair moved1 moved2 >out 2>err && + git worktree repair moved1 moved2 2>err && test_cmp expect1 .git/worktrees/orig1/gitdir && test_cmp expect2 .git/worktrees/orig2/gitdir && - test_i18ngrep "gitdir incorrect:.*orig1/gitdir$" out && - test_i18ngrep "gitdir incorrect:.*orig2/gitdir$" out && - test_must_be_empty err + test_i18ngrep "gitdir incorrect:.*orig1/gitdir$" err && + test_i18ngrep "gitdir incorrect:.*orig2/gitdir$" err ' test_expect_success 'repair moved main and linked worktrees' ' diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh index 8c5c1ccf33..8a619d785e 100755 --- a/t/t3200-branch.sh +++ b/t/t3200-branch.sh @@ -168,6 +168,13 @@ test_expect_success 'git branch -M foo bar should fail when bar is checked out' test_must_fail git branch -M bar foo ' +test_expect_success 'git branch -M foo bar should fail when bar is checked out in worktree' ' + git branch -f bar && + test_when_finished "git worktree remove wt && git branch -D wt" && + git worktree add wt && + test_must_fail git branch -M bar wt +' + test_expect_success 'git branch -M baz bam should succeed when baz is checked out' ' git checkout -b baz && git branch bam && @@ -888,7 +895,7 @@ test_expect_success '--set-upstream-to fails on a missing src branch' ' ' test_expect_success '--set-upstream-to fails on a non-ref' ' - echo "fatal: Cannot setup tracking information; starting point '"'"'HEAD^{}'"'"' is not a branch." >expect && + echo "fatal: cannot set up tracking information; starting point '"'"'HEAD^{}'"'"' is not a branch" >expect && test_must_fail git branch --set-upstream-to HEAD^{} 2>err && test_cmp expect err ' @@ -975,7 +982,7 @@ test_expect_success 'disabled option --set-upstream fails' ' test_expect_success '--set-upstream-to notices an error to set branch as own upstream' ' git branch --set-upstream-to refs/heads/my13 my13 2>actual && cat >expect <<-\EOF && - warning: Not setting branch my13 as its own upstream. + warning: not setting branch my13 as its own upstream EOF test_expect_code 1 git config branch.my13.remote && test_expect_code 1 git config branch.my13.merge && diff --git a/t/t3201-branch-contains.sh b/t/t3201-branch-contains.sh index 349a810cee..800fc33165 100755 --- a/t/t3201-branch-contains.sh +++ b/t/t3201-branch-contains.sh @@ -2,9 +2,6 @@ test_description='branch --contains <commit>, --no-contains <commit> --merged, and --no-merged' -GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main -export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME - . ./test-lib.sh test_expect_success setup ' diff --git a/t/t3202-show-branch.sh b/t/t3202-show-branch.sh index ad9902a06b..d4d64401e4 100755 --- a/t/t3202-show-branch.sh +++ b/t/t3202-show-branch.sh @@ -4,6 +4,9 @@ test_description='test show-branch' . ./test-lib.sh +# arbitrary reference time: 2009-08-30 19:20:00 +GIT_TEST_DATE_NOW=1251660000; export GIT_TEST_DATE_NOW + test_expect_success 'setup' ' test_commit initial && for i in $(test_seq 1 10) @@ -146,4 +149,16 @@ test_expect_success 'show branch --merge-base with N arguments' ' test_cmp expect actual ' +test_expect_success 'show branch --reflog=2' ' + sed "s/^> //" >expect <<-\EOF && + > ! [refs/heads/branch10@{0}] (4 years, 5 months ago) commit: branch10 + > ! [refs/heads/branch10@{1}] (4 years, 5 months ago) commit: branch10 + > -- + > + [refs/heads/branch10@{0}] branch10 + > ++ [refs/heads/branch10@{1}] initial + EOF + git show-branch --reflog=2 >actual && + test_cmp actual expect +' + test_done diff --git a/t/t3203-branch-output.sh b/t/t3203-branch-output.sh index 6e94c6db7b..d34d77f893 100755 --- a/t/t3203-branch-output.sh +++ b/t/t3203-branch-output.sh @@ -1,9 +1,6 @@ #!/bin/sh test_description='git branch display tests' -GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main -export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME - . ./test-lib.sh . "$TEST_DIRECTORY"/lib-terminal.sh diff --git a/t/t3205-branch-color.sh b/t/t3205-branch-color.sh index 6a521c1a3e..0b61da92b3 100755 --- a/t/t3205-branch-color.sh +++ b/t/t3205-branch-color.sh @@ -1,9 +1,6 @@ #!/bin/sh test_description='basic branch output coloring' -GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main -export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME - TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh diff --git a/t/t3302-notes-index-expensive.sh b/t/t3302-notes-index-expensive.sh index ef8b63952e..bc9d8ee1e6 100755 --- a/t/t3302-notes-index-expensive.sh +++ b/t/t3302-notes-index-expensive.sh @@ -8,6 +8,7 @@ test_description='Test commit notes index (expensive!)' GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh create_repo () { diff --git a/t/t3303-notes-subtrees.sh b/t/t3303-notes-subtrees.sh index d47ce00f69..f5fd80d4d3 100755 --- a/t/t3303-notes-subtrees.sh +++ b/t/t3303-notes-subtrees.sh @@ -5,6 +5,7 @@ test_description='Test commit notes organized in subtrees' GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh number_of_commits=100 diff --git a/t/t3320-notes-merge-worktrees.sh b/t/t3320-notes-merge-worktrees.sh index 6b2d507f3e..bff0aea550 100755 --- a/t/t3320-notes-merge-worktrees.sh +++ b/t/t3320-notes-merge-worktrees.sh @@ -8,6 +8,7 @@ test_description='Test merging of notes trees in multiple worktrees' GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'setup commit' ' diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh index 12eb226957..0baa68e9b4 100755 --- a/t/t3404-rebase-interactive.sh +++ b/t/t3404-rebase-interactive.sh @@ -25,8 +25,6 @@ Initial setup: where A, B, D and G all touch file1, and one, two, three, four all touch file "conflict". ' -GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master -export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME . ./test-lib.sh diff --git a/t/t3409-rebase-environ.sh b/t/t3409-rebase-environ.sh new file mode 100755 index 0000000000..83ffb39d9f --- /dev/null +++ b/t/t3409-rebase-environ.sh @@ -0,0 +1,23 @@ +#!/bin/sh + +test_description='git rebase interactive environment' + +. ./test-lib.sh + +test_expect_success 'setup' ' + test_commit one && + test_commit two && + test_commit three +' + +test_expect_success 'rebase --exec does not muck with GIT_DIR' ' + git rebase --exec "printf %s \$GIT_DIR >environ" HEAD~1 && + test_must_be_empty environ +' + +test_expect_success 'rebase --exec does not muck with GIT_WORK_TREE' ' + git rebase --exec "printf %s \$GIT_WORK_TREE >environ" HEAD~1 && + test_must_be_empty environ +' + +test_done diff --git a/t/t3702-add-edit.sh b/t/t3702-add-edit.sh index 6c676645d8..a1801a8cbd 100755 --- a/t/t3702-add-edit.sh +++ b/t/t3702-add-edit.sh @@ -4,6 +4,8 @@ # test_description='add -e basic tests' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh diff --git a/t/t3703-add-magic-pathspec.sh b/t/t3703-add-magic-pathspec.sh index 3ef525a559..d84071038e 100755 --- a/t/t3703-add-magic-pathspec.sh +++ b/t/t3703-add-magic-pathspec.sh @@ -2,6 +2,7 @@ test_description='magic pathspec tests using git-add' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'setup' ' diff --git a/t/t3704-add-pathspec-file.sh b/t/t3704-add-pathspec-file.sh index 9e35c1fbca..5d5164d1fc 100755 --- a/t/t3704-add-pathspec-file.sh +++ b/t/t3704-add-pathspec-file.sh @@ -2,6 +2,7 @@ test_description='add --pathspec-from-file' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_tick diff --git a/t/t3800-mktag.sh b/t/t3800-mktag.sh index 0544d58a6e..e3cf0ffbe5 100755 --- a/t/t3800-mktag.sh +++ b/t/t3800-mktag.sh @@ -72,7 +72,8 @@ check_verify_failure () { # Manually create the broken, we cannot do it with # update-ref - echo "$bad_tag" >"bad-tag/$tag_ref" && + test-tool -C bad-tag ref-store main delete-refs 0 msg "$tag_ref" && + test-tool -C bad-tag ref-store main update-ref msg "$tag_ref" $bad_tag $ZERO_OID REF_SKIP_OID_VERIFICATION && # Unlike fsck-ing unreachable content above, this # will always fail. @@ -83,7 +84,8 @@ check_verify_failure () { # Make sure the earlier test created it for us git rev-parse "$bad_tag" && - echo "$bad_tag" >"bad-tag/$tag_ref" && + test-tool -C bad-tag ref-store main delete-refs 0 msg "$tag_ref" && + test-tool -C bad-tag ref-store main update-ref msg "$tag_ref" $bad_tag $ZERO_OID REF_SKIP_OID_VERIFICATION && printf "%s tag\t%s\n" "$bad_tag" "$tag_ref" >expected && git -C bad-tag for-each-ref "$tag_ref" >actual && diff --git a/t/t3908-stash-in-worktree.sh b/t/t3908-stash-in-worktree.sh index 2b2b366ef9..347a89b030 100755 --- a/t/t3908-stash-in-worktree.sh +++ b/t/t3908-stash-in-worktree.sh @@ -5,6 +5,7 @@ test_description='Test git stash in a worktree' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'setup' ' diff --git a/t/t4000-diff-format.sh b/t/t4000-diff-format.sh index cce334981e..bfcaae390f 100755 --- a/t/t4000-diff-format.sh +++ b/t/t4000-diff-format.sh @@ -6,6 +6,8 @@ test_description='Test built-in diff output engine. ' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-diff.sh diff --git a/t/t4003-diff-rename-1.sh b/t/t4003-diff-rename-1.sh index f4485a87c6..181e9683a7 100755 --- a/t/t4003-diff-rename-1.sh +++ b/t/t4003-diff-rename-1.sh @@ -6,6 +6,8 @@ test_description='More rename detection ' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-diff.sh ;# test-lib chdir's into trash diff --git a/t/t4004-diff-rename-symlink.sh b/t/t4004-diff-rename-symlink.sh index 3d495e37bb..8def4d4aee 100755 --- a/t/t4004-diff-rename-symlink.sh +++ b/t/t4004-diff-rename-symlink.sh @@ -9,6 +9,8 @@ The rename detection logic should be able to detect pure rename or copy of symbolic links, but should not produce rename/copy followed by an edit for them. ' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-diff.sh diff --git a/t/t4005-diff-rename-2.sh b/t/t4005-diff-rename-2.sh index 6f1b323f97..5c756dc243 100755 --- a/t/t4005-diff-rename-2.sh +++ b/t/t4005-diff-rename-2.sh @@ -5,6 +5,8 @@ test_description='Same rename detection as t4003 but testing diff-raw.' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-diff.sh ;# test-lib chdir's into trash diff --git a/t/t4006-diff-mode.sh b/t/t4006-diff-mode.sh index 6cdee2a216..dbd4c0da21 100755 --- a/t/t4006-diff-mode.sh +++ b/t/t4006-diff-mode.sh @@ -6,6 +6,8 @@ test_description='Test mode change diffs. ' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh sed_script='s/\(:100644 100755\) \('"$OID_REGEX"'\) \2 /\1 X X /' diff --git a/t/t4007-rename-3.sh b/t/t4007-rename-3.sh index c634653b5b..b86165cbac 100755 --- a/t/t4007-rename-3.sh +++ b/t/t4007-rename-3.sh @@ -6,6 +6,8 @@ test_description='Rename interaction with pathspec. ' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-diff.sh ;# test-lib chdir's into trash diff --git a/t/t4009-diff-rename-4.sh b/t/t4009-diff-rename-4.sh index 59b7f44f05..3480781dab 100755 --- a/t/t4009-diff-rename-4.sh +++ b/t/t4009-diff-rename-4.sh @@ -6,6 +6,8 @@ test_description='Same rename detection as t4003 but testing diff-raw -z. ' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-diff.sh ;# test-lib chdir's into trash diff --git a/t/t4010-diff-pathspec.sh b/t/t4010-diff-pathspec.sh index 1bbced79ec..9d9650eba7 100755 --- a/t/t4010-diff-pathspec.sh +++ b/t/t4010-diff-pathspec.sh @@ -9,6 +9,8 @@ Prepare: file0 path1/file1 ' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-diff.sh ;# test-lib chdir's into trash diff --git a/t/t4011-diff-symlink.sh b/t/t4011-diff-symlink.sh index 5a25c259fe..d7a5f7ae78 100755 --- a/t/t4011-diff-symlink.sh +++ b/t/t4011-diff-symlink.sh @@ -6,6 +6,8 @@ test_description='Test diff of symlinks. ' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-diff.sh diff --git a/t/t4012-diff-binary.sh b/t/t4012-diff-binary.sh index 33ff588ebc..00eeafb2ac 100755 --- a/t/t4012-diff-binary.sh +++ b/t/t4012-diff-binary.sh @@ -6,6 +6,7 @@ test_description='Binary diff and apply ' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh cat >expect.binary-numstat <<\EOF diff --git a/t/t4020-diff-external.sh b/t/t4020-diff-external.sh index e009826fcb..54bb8ef27e 100755 --- a/t/t4020-diff-external.sh +++ b/t/t4020-diff-external.sh @@ -2,6 +2,7 @@ test_description='external diff interface test' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t4024-diff-optimize-common.sh b/t/t4024-diff-optimize-common.sh index 6b44ce1493..540f93715e 100755 --- a/t/t4024-diff-optimize-common.sh +++ b/t/t4024-diff-optimize-common.sh @@ -2,6 +2,7 @@ test_description='common tail optimization' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh z=zzzzzzzz ;# 8 diff --git a/t/t4026-color.sh b/t/t4026-color.sh index cc73161b46..cc3f60d468 100755 --- a/t/t4026-color.sh +++ b/t/t4026-color.sh @@ -60,6 +60,10 @@ test_expect_success 'fg bg attr...' ' color "blue bold dim ul blink reverse" "[1;2;4;5;7;34m" ' +test_expect_success 'reset fg bg attr...' ' + color "reset blue bold dim ul blink reverse" "[;1;2;4;5;7;34m" +' + # note that nobold and nodim are the same code (22) test_expect_success 'attr negation' ' color "nobold nodim noul noblink noreverse" "[22;24;25;27m" @@ -96,6 +100,18 @@ test_expect_success '24-bit colors' ' color "#ff00ff black" "[38;2;255;0;255;40m" ' +test_expect_success '"default" foreground' ' + color "default" "[39m" +' + +test_expect_success '"normal default" to clear background' ' + color "normal default" "[49m" +' + +test_expect_success '"default" can be combined with attributes' ' + color "default default no-reverse bold" "[1;27;39;49m" +' + test_expect_success '"normal" yields no color at all"' ' color "normal black" "[40m" ' diff --git a/t/t4027-diff-submodule.sh b/t/t4027-diff-submodule.sh index 94ef77e1df..6cef0da982 100755 --- a/t/t4027-diff-submodule.sh +++ b/t/t4027-diff-submodule.sh @@ -2,6 +2,7 @@ test_description='difference in submodules' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-diff.sh diff --git a/t/t4029-diff-trailing-space.sh b/t/t4029-diff-trailing-space.sh index 32b6e9a4e7..5f8ffef74b 100755 --- a/t/t4029-diff-trailing-space.sh +++ b/t/t4029-diff-trailing-space.sh @@ -4,6 +4,7 @@ # test_description='diff honors config option, diff.suppressBlankEmpty' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh cat <<\EOF >expected || diff --git a/t/t4032-diff-inter-hunk-context.sh b/t/t4032-diff-inter-hunk-context.sh index bada0cbd32..7db92d0d9f 100755 --- a/t/t4032-diff-inter-hunk-context.sh +++ b/t/t4032-diff-inter-hunk-context.sh @@ -2,6 +2,7 @@ test_description='diff hunk fusing' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh f() { diff --git a/t/t4033-diff-patience.sh b/t/t4033-diff-patience.sh index 113304dc59..f7be7f5ef0 100755 --- a/t/t4033-diff-patience.sh +++ b/t/t4033-diff-patience.sh @@ -2,6 +2,7 @@ test_description='patience diff algorithm' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-diff-alternative.sh diff --git a/t/t4034-diff-words.sh b/t/t4034-diff-words.sh index 561c582d16..d5abcf4b4c 100755 --- a/t/t4034-diff-words.sh +++ b/t/t4034-diff-words.sh @@ -2,6 +2,7 @@ test_description='word diff colors' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-diff.sh diff --git a/t/t4035-diff-quiet.sh b/t/t4035-diff-quiet.sh index 0352bf81a9..76f8034c60 100755 --- a/t/t4035-diff-quiet.sh +++ b/t/t4035-diff-quiet.sh @@ -2,6 +2,7 @@ test_description='Return value of diffs' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'setup' ' diff --git a/t/t4037-diff-r-t-dirs.sh b/t/t4037-diff-r-t-dirs.sh index f5ce3b29a2..b5f96fe23b 100755 --- a/t/t4037-diff-r-t-dirs.sh +++ b/t/t4037-diff-r-t-dirs.sh @@ -2,6 +2,7 @@ test_description='diff -r -t shows directory additions and deletions' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t4040-whitespace-status.sh b/t/t4040-whitespace-status.sh index 3c728a3ebf..e70e020ae9 100755 --- a/t/t4040-whitespace-status.sh +++ b/t/t4040-whitespace-status.sh @@ -1,6 +1,8 @@ #!/bin/sh test_description='diff --exit-code with whitespace' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t4046-diff-unmerged.sh b/t/t4046-diff-unmerged.sh index ff7cfd884a..fd3f3a7260 100755 --- a/t/t4046-diff-unmerged.sh +++ b/t/t4046-diff-unmerged.sh @@ -1,6 +1,8 @@ #!/bin/sh test_description='diff with unmerged index entries' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t4049-diff-stat-count.sh b/t/t4049-diff-stat-count.sh index 53061b104e..f5b35e7860 100755 --- a/t/t4049-diff-stat-count.sh +++ b/t/t4049-diff-stat-count.sh @@ -2,6 +2,8 @@ # Copyright (c) 2011, Google Inc. test_description='diff --stat-count' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'setup' ' diff --git a/t/t4050-diff-histogram.sh b/t/t4050-diff-histogram.sh index fd3e86a74f..c61b30f96d 100755 --- a/t/t4050-diff-histogram.sh +++ b/t/t4050-diff-histogram.sh @@ -2,6 +2,7 @@ test_description='histogram diff algorithm' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-diff-alternative.sh diff --git a/t/t4054-diff-bogus-tree.sh b/t/t4054-diff-bogus-tree.sh index 8c95f152b2..294fb55313 100755 --- a/t/t4054-diff-bogus-tree.sh +++ b/t/t4054-diff-bogus-tree.sh @@ -1,6 +1,8 @@ #!/bin/sh test_description='test diff with a bogus tree containing the null sha1' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'create bogus tree' ' diff --git a/t/t4062-diff-pickaxe.sh b/t/t4062-diff-pickaxe.sh index 1130c8019b..9aaa068ed9 100755 --- a/t/t4062-diff-pickaxe.sh +++ b/t/t4062-diff-pickaxe.sh @@ -5,6 +5,7 @@ test_description='Pickaxe options' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t4063-diff-blobs.sh b/t/t4063-diff-blobs.sh index bc69e26c52..7e6c9d6384 100755 --- a/t/t4063-diff-blobs.sh +++ b/t/t4063-diff-blobs.sh @@ -1,6 +1,8 @@ #!/bin/sh test_description='test direct comparison of blobs via git-diff' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh run_diff () { diff --git a/t/t4100-apply-stat.sh b/t/t4100-apply-stat.sh index 9b433de836..d503547732 100755 --- a/t/t4100-apply-stat.sh +++ b/t/t4100-apply-stat.sh @@ -6,6 +6,8 @@ test_description='git apply --stat --summary test, with --recount ' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh UNC='s/^\(@@ -[1-9][0-9]*\),[0-9]* \(+[1-9][0-9]*\),[0-9]* @@/\1,999 \2,999 @@/' diff --git a/t/t4101-apply-nonl.sh b/t/t4101-apply-nonl.sh index e3443d004d..b1169193ef 100755 --- a/t/t4101-apply-nonl.sh +++ b/t/t4101-apply-nonl.sh @@ -6,6 +6,8 @@ test_description='git apply should handle files with incomplete lines. ' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh # setup diff --git a/t/t4102-apply-rename.sh b/t/t4102-apply-rename.sh index fae305979a..d1e06fc1ac 100755 --- a/t/t4102-apply-rename.sh +++ b/t/t4102-apply-rename.sh @@ -6,6 +6,8 @@ test_description='git apply handling copy/rename patch. ' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh # setup diff --git a/t/t4105-apply-fuzz.sh b/t/t4105-apply-fuzz.sh index 3266e39400..76e2c01b0f 100755 --- a/t/t4105-apply-fuzz.sh +++ b/t/t4105-apply-fuzz.sh @@ -2,6 +2,8 @@ test_description='apply with fuzz and offset' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh dotest () { diff --git a/t/t4106-apply-stdin.sh b/t/t4106-apply-stdin.sh index 72467a1e8e..a57a318699 100755 --- a/t/t4106-apply-stdin.sh +++ b/t/t4106-apply-stdin.sh @@ -2,6 +2,8 @@ test_description='git apply --numstat - <patch' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t4109-apply-multifrag.sh b/t/t4109-apply-multifrag.sh index ac58083fe2..4dc6d8e7d3 100755 --- a/t/t4109-apply-multifrag.sh +++ b/t/t4109-apply-multifrag.sh @@ -6,6 +6,8 @@ test_description='git apply test patches with multiple fragments.' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh cp "$TEST_DIRECTORY/t4109/patch1.patch" . diff --git a/t/t4110-apply-scan.sh b/t/t4110-apply-scan.sh index 09f58112e0..266302a182 100755 --- a/t/t4110-apply-scan.sh +++ b/t/t4110-apply-scan.sh @@ -7,6 +7,8 @@ test_description='git apply test for patches which require scanning forwards and backwards. ' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'git apply scan' ' diff --git a/t/t4112-apply-renames.sh b/t/t4112-apply-renames.sh index f9ad183758..d53aa4222e 100755 --- a/t/t4112-apply-renames.sh +++ b/t/t4112-apply-renames.sh @@ -7,6 +7,8 @@ test_description='git apply should not get confused with rename/copy. ' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh # setup diff --git a/t/t4116-apply-reverse.sh b/t/t4116-apply-reverse.sh index b99e65c086..f3b635475a 100755 --- a/t/t4116-apply-reverse.sh +++ b/t/t4116-apply-reverse.sh @@ -7,6 +7,8 @@ test_description='git apply in reverse ' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t4118-apply-empty-context.sh b/t/t4118-apply-empty-context.sh index 65f2e4c3ef..5fc6d3e4e7 100755 --- a/t/t4118-apply-empty-context.sh +++ b/t/t4118-apply-empty-context.sh @@ -7,6 +7,8 @@ test_description='git apply with new style GNU diff with empty context ' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t4119-apply-config.sh b/t/t4119-apply-config.sh index a9a0583811..208c961d37 100755 --- a/t/t4119-apply-config.sh +++ b/t/t4119-apply-config.sh @@ -7,6 +7,8 @@ test_description='git apply --whitespace=strip and configuration file. ' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t4123-apply-shrink.sh b/t/t4123-apply-shrink.sh index 984157f03b..ef57cd3aeb 100755 --- a/t/t4123-apply-shrink.sh +++ b/t/t4123-apply-shrink.sh @@ -2,6 +2,8 @@ test_description='apply a patch that is larger than the preimage' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh cat >F <<\EOF diff --git a/t/t4126-apply-empty.sh b/t/t4126-apply-empty.sh index ceb6a79fe0..82284d2f45 100755 --- a/t/t4126-apply-empty.sh +++ b/t/t4126-apply-empty.sh @@ -2,6 +2,8 @@ test_description='apply empty' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' @@ -9,6 +11,8 @@ test_expect_success setup ' git add empty && test_tick && git commit -m initial && + git commit --allow-empty -m "empty commit" && + git format-patch --always HEAD~ >empty.patch && for i in a b c d e do echo $i @@ -25,30 +29,42 @@ test_expect_success setup ' ' test_expect_success 'apply empty' ' - git reset --hard && rm -f missing && + test_when_finished "git reset --hard" && git apply patch0 && test_cmp expect empty ' +test_expect_success 'apply empty patch fails' ' + test_when_finished "git reset --hard" && + test_must_fail git apply empty.patch && + test_must_fail git apply - </dev/null +' + +test_expect_success 'apply with --allow-empty succeeds' ' + test_when_finished "git reset --hard" && + git apply --allow-empty empty.patch && + git apply --allow-empty - </dev/null +' + test_expect_success 'apply --index empty' ' - git reset --hard && rm -f missing && + test_when_finished "git reset --hard" && git apply --index patch0 && test_cmp expect empty && git diff --exit-code ' test_expect_success 'apply create' ' - git reset --hard && rm -f missing && + test_when_finished "git reset --hard" && git apply patch1 && test_cmp expect missing ' test_expect_success 'apply --index create' ' - git reset --hard && rm -f missing && + test_when_finished "git reset --hard" && git apply --index patch1 && test_cmp expect missing && git diff --exit-code diff --git a/t/t4127-apply-same-fn.sh b/t/t4127-apply-same-fn.sh index 305b7e649e..c27e9aec57 100755 --- a/t/t4127-apply-same-fn.sh +++ b/t/t4127-apply-same-fn.sh @@ -2,6 +2,8 @@ test_description='apply same filename' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh modify () { diff --git a/t/t4128-apply-root.sh b/t/t4128-apply-root.sh index 6cc741a634..cb3181e8b7 100755 --- a/t/t4128-apply-root.sh +++ b/t/t4128-apply-root.sh @@ -2,6 +2,8 @@ test_description='apply same filename' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'setup' ' diff --git a/t/t4129-apply-samemode.sh b/t/t4129-apply-samemode.sh index 576632f868..a1c7686519 100755 --- a/t/t4129-apply-samemode.sh +++ b/t/t4129-apply-samemode.sh @@ -2,6 +2,8 @@ test_description='applying patch with mode bits' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t4130-apply-criss-cross-rename.sh b/t/t4130-apply-criss-cross-rename.sh index f8a313bcb9..f3ea632742 100755 --- a/t/t4130-apply-criss-cross-rename.sh +++ b/t/t4130-apply-criss-cross-rename.sh @@ -1,6 +1,8 @@ #!/bin/sh test_description='git apply handling criss-cross rename patch.' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh create_file() { diff --git a/t/t4132-apply-removal.sh b/t/t4132-apply-removal.sh index fec1d6fa51..c1e3049c04 100755 --- a/t/t4132-apply-removal.sh +++ b/t/t4132-apply-removal.sh @@ -4,6 +4,8 @@ test_description='git-apply notices removal patches generated by GNU diff' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t4133-apply-filenames.sh b/t/t4133-apply-filenames.sh index c5ed3b17c4..35f1060bc8 100755 --- a/t/t4133-apply-filenames.sh +++ b/t/t4133-apply-filenames.sh @@ -5,6 +5,8 @@ test_description='git apply filename consistency check' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t4134-apply-submodule.sh b/t/t4134-apply-submodule.sh index d1c16ba33c..aceb4c42b0 100755 --- a/t/t4134-apply-submodule.sh +++ b/t/t4134-apply-submodule.sh @@ -5,6 +5,8 @@ test_description='git apply submodule tests' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t4136-apply-check.sh b/t/t4136-apply-check.sh index 4c3f264a63..dfec1c5f0f 100755 --- a/t/t4136-apply-check.sh +++ b/t/t4136-apply-check.sh @@ -2,6 +2,8 @@ test_description='git apply should exit non-zero with unrecognized input.' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'setup' ' diff --git a/t/t4139-apply-escape.sh b/t/t4139-apply-escape.sh index 45b5660a47..e5c7439df1 100755 --- a/t/t4139-apply-escape.sh +++ b/t/t4139-apply-escape.sh @@ -1,6 +1,8 @@ #!/bin/sh test_description='paths written by git-apply cannot escape the working tree' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh # tests will try to write to ../foo, and we do not diff --git a/t/t4202-log.sh b/t/t4202-log.sh index 7884e3d46b..2ced7e9d81 100755 --- a/t/t4202-log.sh +++ b/t/t4202-log.sh @@ -952,6 +952,43 @@ test_expect_success 'decorate-refs-exclude and simplify-by-decoration' ' test_cmp expect.decorate actual ' +test_expect_success 'decorate-refs with implied decorate from format' ' + cat >expect <<-\EOF && + side-2 (tag: side-2) + side-1 + EOF + git log --no-walk --format="%s%d" \ + --decorate-refs="*side-2" side-1 side-2 \ + >actual && + test_cmp expect actual +' + +test_expect_success 'implied decorate does not override option' ' + cat >expect <<-\EOF && + side-2 (tag: refs/tags/side-2, refs/heads/side) + side-1 (tag: refs/tags/side-1) + EOF + git log --no-walk --format="%s%d" \ + --decorate=full side-1 side-2 \ + >actual && + test_cmp expect actual +' + +test_expect_success 'decorate-refs and simplify-by-decoration without output' ' + cat >expect <<-\EOF && + side-2 + initial + EOF + # Do not just use a --format without %d here; we want to + # make sure that we did not accidentally turn on displaying + # the decorations, too. And that requires one of the regular + # formats. + git log --decorate-refs="*side-2" --oneline \ + --simplify-by-decoration >actual.raw && + sed "s/^[0-9a-f]* //" <actual.raw >actual && + test_cmp expect actual +' + test_expect_success 'log.decorate config parsing' ' git log --oneline --decorate=full >expect.full && git log --oneline --decorate=short >expect.short && @@ -1677,6 +1714,24 @@ test_expect_success GPGSSH 'setup sshkey signed branch' ' git commit -S -m signed_commit ' +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'create signed commits with keys having defined lifetimes' ' + test_config gpg.format ssh && + touch file && + git add file && + + echo expired >file && test_tick && git commit -a -m expired -S"${GPGSSH_KEY_EXPIRED}" && + git tag expired-signed && + + echo notyetvalid >file && test_tick && git commit -a -m notyetvalid -S"${GPGSSH_KEY_NOTYETVALID}" && + git tag notyetvalid-signed && + + echo timeboxedvalid >file && test_tick && git commit -a -m timeboxedvalid -S"${GPGSSH_KEY_TIMEBOXEDVALID}" && + git tag timeboxedvalid-signed && + + echo timeboxedinvalid >file && test_tick && git commit -a -m timeboxedinvalid -S"${GPGSSH_KEY_TIMEBOXEDINVALID}" && + git tag timeboxedinvalid-signed +' + test_expect_success GPGSM 'log x509 fingerprint' ' echo "F8BF62E0693D0694816377099909C779FA23FD65 | " >expect && git log -n1 --format="%GF | %GP" signed-x509 >actual && @@ -1714,6 +1769,31 @@ test_expect_success GPGSSH 'log --graph --show-signature ssh' ' grep "${GOOD_SIGNATURE_TRUSTED}" actual ' +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'log shows failure on expired signature key' ' + test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && + git log --graph --show-signature -n1 expired-signed >actual && + ! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual +' + +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'log shows failure on not yet valid signature key' ' + test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && + git log --graph --show-signature -n1 notyetvalid-signed >actual && + ! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual +' + +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'log show success with commit date and key validity matching' ' + test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && + git log --graph --show-signature -n1 timeboxedvalid-signed >actual && + grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual && + ! grep "${GPGSSH_BAD_SIGNATURE}" actual +' + +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'log shows failure with commit date outside of key validity' ' + test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && + git log --graph --show-signature -n1 timeboxedinvalid-signed >actual && + ! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual +' + test_expect_success GPG 'log --graph --show-signature for merged tag' ' test_when_finished "git reset --hard && git checkout main" && git checkout -b plain main && diff --git a/t/t4205-log-pretty-formats.sh b/t/t4205-log-pretty-formats.sh index 5865daa8f8..35eef4c865 100755 --- a/t/t4205-log-pretty-formats.sh +++ b/t/t4205-log-pretty-formats.sh @@ -1002,4 +1002,20 @@ test_expect_success '%(describe:exclude=...) vs git describe --exclude ...' ' test_cmp expect actual ' +test_expect_success '%(describe:tags) vs git describe --tags' ' + test_when_finished "git tag -d tagname" && + git tag tagname && + git describe --tags >expect && + git log -1 --format="%(describe:tags)" >actual && + test_cmp expect actual +' + +test_expect_success '%(describe:abbrev=...) vs git describe --abbrev=...' ' + test_when_finished "git tag -d tagname" && + git tag -a -m tagged tagname && + git describe --abbrev=15 >expect && + git log -1 --format="%(describe:abbrev=15)" >actual && + test_cmp expect actual +' + test_done diff --git a/t/t4216-log-bloom.sh b/t/t4216-log-bloom.sh index 50f206db55..8018c12a6a 100755 --- a/t/t4216-log-bloom.sh +++ b/t/t4216-log-bloom.sh @@ -175,13 +175,11 @@ test_expect_success 'persist filter settings' ' test_when_finished rm -rf .git/objects/info/commit-graph* && rm -rf .git/objects/info/commit-graph* && GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \ - GIT_TRACE2_EVENT_NESTING=5 \ GIT_TEST_BLOOM_SETTINGS_NUM_HASHES=9 \ GIT_TEST_BLOOM_SETTINGS_BITS_PER_ENTRY=15 \ git commit-graph write --reachable --changed-paths && grep "{\"hash_version\":1,\"num_hashes\":9,\"bits_per_entry\":15,\"max_changed_paths\":512" trace2.txt && GIT_TRACE2_EVENT="$(pwd)/trace2-auto.txt" \ - GIT_TRACE2_EVENT_NESTING=5 \ git commit-graph write --reachable --changed-paths && grep "{\"hash_version\":1,\"num_hashes\":9,\"bits_per_entry\":15,\"max_changed_paths\":512" trace2-auto.txt ' diff --git a/t/t5002-archive-attr-pattern.sh b/t/t5002-archive-attr-pattern.sh index bda6d7d7e9..a66b5ba27e 100755 --- a/t/t5002-archive-attr-pattern.sh +++ b/t/t5002-archive-attr-pattern.sh @@ -2,6 +2,7 @@ test_description='git archive attribute pattern tests' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_exists() { diff --git a/t/t5200-update-server-info.sh b/t/t5200-update-server-info.sh index 21a58eecb9..ed9dfd624c 100755 --- a/t/t5200-update-server-info.sh +++ b/t/t5200-update-server-info.sh @@ -2,6 +2,7 @@ test_description='Test git update-server-info' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'setup' 'test_commit file' diff --git a/t/t5307-pack-missing-commit.sh b/t/t5307-pack-missing-commit.sh index f4338abb78..d3482ab279 100755 --- a/t/t5307-pack-missing-commit.sh +++ b/t/t5307-pack-missing-commit.sh @@ -2,6 +2,7 @@ test_description='pack should notice missing commit objects' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t5310-pack-bitmaps.sh b/t/t5310-pack-bitmaps.sh index dcf03d324a..cbd33d5bde 100755 --- a/t/t5310-pack-bitmaps.sh +++ b/t/t5310-pack-bitmaps.sh @@ -1,8 +1,6 @@ #!/bin/sh test_description='exercise basic bitmap functionality' -GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master -export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME . ./test-lib.sh . "$TEST_DIRECTORY"/lib-bitmap.sh @@ -35,7 +33,7 @@ test_expect_success 'setup writing bitmaps during repack' ' ' test_expect_success 'full repack creates bitmaps' ' - GIT_TRACE2_EVENT_NESTING=4 GIT_TRACE2_EVENT="$(pwd)/trace" \ + GIT_TRACE2_EVENT="$(pwd)/trace" \ git repack -ad && ls .git/objects/pack/ | grep bitmap >output && test_line_count = 1 output && diff --git a/t/t5504-fetch-receive-strict.sh b/t/t5504-fetch-receive-strict.sh index 6e5a9c20e7..b0b795aca9 100755 --- a/t/t5504-fetch-receive-strict.sh +++ b/t/t5504-fetch-receive-strict.sh @@ -292,7 +292,7 @@ test_expect_success 'push with receive.fsck.missingEmail=warn' ' receive.fsck.missingEmail warn && git push --porcelain dst bogus >act 2>&1 && grep "missingEmail" act && - test_i18ngrep "Skipping unknown msg id.*whatever" act && + test_i18ngrep "skipping unknown msg id.*whatever" act && git --git-dir=dst/.git branch -D bogus && git --git-dir=dst/.git config --add \ receive.fsck.missingEmail ignore && diff --git a/t/t5505-remote.sh b/t/t5505-remote.sh index e6e3c8f552..7ce1a28ef6 100755 --- a/t/t5505-remote.sh +++ b/t/t5505-remote.sh @@ -2,9 +2,6 @@ test_description='git remote porcelain-ish' -GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main -export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME - . ./test-lib.sh setup_repository () { diff --git a/t/t5510-fetch.sh b/t/t5510-fetch.sh index a0faf0dd94..8c33755c26 100755 --- a/t/t5510-fetch.sh +++ b/t/t5510-fetch.sh @@ -5,9 +5,6 @@ test_description='Per branch config variables affects "git fetch". ' -GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main -export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME - . ./test-lib.sh . "$TEST_DIRECTORY"/lib-bundle.sh diff --git a/t/t5516-fetch-push.sh b/t/t5516-fetch-push.sh index 7831a38dde..837a49642a 100755 --- a/t/t5516-fetch-push.sh +++ b/t/t5516-fetch-push.sh @@ -1778,6 +1778,38 @@ test_expect_success 'denyCurrentBranch and worktrees' ' test_must_fail git -C cloned push origin HEAD:new-wt && test_config receive.denyCurrentBranch updateInstead && git -C cloned push origin HEAD:new-wt && + test_path_exists new-wt/first.t && test_must_fail git -C cloned push --delete origin new-wt ' + +test_expect_success 'denyCurrentBranch and bare repository worktrees' ' + test_when_finished "rm -fr bare.git" && + git clone --bare . bare.git && + git -C bare.git worktree add wt && + test_commit grape && + git -C bare.git config receive.denyCurrentBranch refuse && + test_must_fail git push bare.git HEAD:wt && + git -C bare.git config receive.denyCurrentBranch updateInstead && + git push bare.git HEAD:wt && + test_path_exists bare.git/wt/grape.t && + test_must_fail git push --delete bare.git wt +' + +test_expect_success 'refuse fetch to current branch of worktree' ' + test_when_finished "git worktree remove --force wt && git branch -D wt" && + git worktree add wt && + test_commit apple && + test_must_fail git fetch . HEAD:wt && + git fetch -u . HEAD:wt +' + +test_expect_success 'refuse fetch to current branch of bare repository worktree' ' + test_when_finished "rm -fr bare.git" && + git clone --bare . bare.git && + git -C bare.git worktree add wt && + test_commit banana && + test_must_fail git -C bare.git fetch .. HEAD:wt && + git -C bare.git fetch -u .. HEAD:wt +' + test_done diff --git a/t/t5526-fetch-submodules.sh b/t/t5526-fetch-submodules.sh index 2dc75b80db..840c89cc8b 100755 --- a/t/t5526-fetch-submodules.sh +++ b/t/t5526-fetch-submodules.sh @@ -3,9 +3,6 @@ test_description='Recursive "git fetch" for submodules' -GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master -export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME - GIT_TEST_FATAL_REGISTER_SUBMODULE_ODB=1 export GIT_TEST_FATAL_REGISTER_SUBMODULE_ODB diff --git a/t/t5553-set-upstream.sh b/t/t5553-set-upstream.sh index 9c12c0f8c3..48050162c2 100755 --- a/t/t5553-set-upstream.sh +++ b/t/t5553-set-upstream.sh @@ -91,6 +91,17 @@ test_expect_success 'fetch --set-upstream with valid URL sets upstream to URL' ' check_config_missing other2 ' +test_expect_success 'fetch --set-upstream with a detached HEAD' ' + git checkout HEAD^0 && + test_when_finished "git checkout -" && + cat >expect <<-\EOF && + warning: could not set upstream of HEAD to '"'"'main'"'"' from '"'"'upstream'"'"' when it does not point to any branch. + EOF + git fetch --set-upstream upstream main 2>actual.raw && + grep ^warning: actual.raw >actual && + test_cmp expect actual +' + # tests for pull --set-upstream test_expect_success 'setup bare parent pull' ' @@ -178,4 +189,15 @@ test_expect_success 'pull --set-upstream with valid URL and branch sets branch' check_config_missing other2 ' +test_expect_success 'pull --set-upstream with a detached HEAD' ' + git checkout HEAD^0 && + test_when_finished "git checkout -" && + cat >expect <<-\EOF && + warning: could not set upstream of HEAD to '"'"'main'"'"' from '"'"'upstream'"'"' when it does not point to any branch. + EOF + git pull --no-rebase --set-upstream upstream main 2>actual.raw && + grep ^warning: actual.raw >actual && + test_cmp expect actual +' + test_done diff --git a/t/t5555-http-smart-common.sh b/t/t5555-http-smart-common.sh index 49faf5e283..b1cfe8b7db 100755 --- a/t/t5555-http-smart-common.sh +++ b/t/t5555-http-smart-common.sh @@ -2,6 +2,7 @@ test_description='test functionality common to smart fetch & push' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'setup' ' diff --git a/t/t5602-clone-remote-exec.sh b/t/t5602-clone-remote-exec.sh index cbcceab9d5..56329aa160 100755 --- a/t/t5602-clone-remote-exec.sh +++ b/t/t5602-clone-remote-exec.sh @@ -2,6 +2,7 @@ test_description=clone +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t5603-clone-dirname.sh b/t/t5603-clone-dirname.sh index 13b5e5eb9b..8ca1f09423 100755 --- a/t/t5603-clone-dirname.sh +++ b/t/t5603-clone-dirname.sh @@ -1,6 +1,8 @@ #!/bin/sh test_description='check output directory names used by git-clone' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh # we use a fake ssh wrapper that ignores the arguments diff --git a/t/t5701-git-serve.sh b/t/t5701-git-serve.sh index aa1827d841..1896f671cb 100755 --- a/t/t5701-git-serve.sh +++ b/t/t5701-git-serve.sh @@ -5,6 +5,7 @@ test_description='test protocol v2 server commands' GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'test capability advertisement' ' diff --git a/t/t5703-upload-pack-ref-in-want.sh b/t/t5703-upload-pack-ref-in-want.sh index 220098523a..9d6cd7d986 100755 --- a/t/t5703-upload-pack-ref-in-want.sh +++ b/t/t5703-upload-pack-ref-in-want.sh @@ -2,9 +2,6 @@ test_description='upload-pack ref-in-want' -GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main -export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME - . ./test-lib.sh get_actual_refs () { diff --git a/t/t5704-protocol-violations.sh b/t/t5704-protocol-violations.sh index bc393d7c31..ae1a00afb0 100755 --- a/t/t5704-protocol-violations.sh +++ b/t/t5704-protocol-violations.sh @@ -4,6 +4,8 @@ test_description='Test responses to violations of the network protocol. In most of these cases it will generally be acceptable for one side to break off communications if the other side says something unexpected. We are mostly making sure that we do not segfault or otherwise behave badly.' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'extra delim packet in v2 ls-refs args' ' diff --git a/t/t5705-session-id-in-capabilities.sh b/t/t5705-session-id-in-capabilities.sh index eb8c79aafd..ed38c76c29 100755 --- a/t/t5705-session-id-in-capabilities.sh +++ b/t/t5705-session-id-in-capabilities.sh @@ -32,7 +32,6 @@ do test_when_finished "git -C local push --delete origin new-branch" && cp -r "$LOCAL_PRISTINE" local && git -C local pull --no-rebase origin && - GIT_TRACE2_EVENT_NESTING=5 \ GIT_TRACE2_EVENT="$(pwd)/tr2-client-events" \ git -c protocol.version=$PROTO -C local push \ --receive-pack "GIT_TRACE2_EVENT=\"$(pwd)/tr2-server-events\" git-receive-pack" \ @@ -65,7 +64,6 @@ do test_when_finished "git -C local push --delete origin new-branch" && cp -r "$LOCAL_PRISTINE" local && git -C local pull --no-rebase origin && - GIT_TRACE2_EVENT_NESTING=5 \ GIT_TRACE2_EVENT="$(pwd)/tr2-client-events" \ git -c protocol.version=$PROTO -C local push \ --receive-pack "GIT_TRACE2_EVENT=\"$(pwd)/tr2-server-events\" git-receive-pack" \ diff --git a/t/t6005-rev-list-count.sh b/t/t6005-rev-list-count.sh index 0b64822bf6..d763de0041 100755 --- a/t/t6005-rev-list-count.sh +++ b/t/t6005-rev-list-count.sh @@ -2,6 +2,7 @@ test_description='git rev-list --max-count and --skip test' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'setup' ' diff --git a/t/t6102-rev-list-unexpected-objects.sh b/t/t6102-rev-list-unexpected-objects.sh index 52cde097dd..6f0902b863 100755 --- a/t/t6102-rev-list-unexpected-objects.sh +++ b/t/t6102-rev-list-unexpected-objects.sh @@ -2,6 +2,7 @@ test_description='git rev-list should handle unexpected object types' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'setup well-formed objects' ' diff --git a/t/t6136-pathspec-in-bare.sh b/t/t6136-pathspec-in-bare.sh index b117251366..ae8b5379e2 100755 --- a/t/t6136-pathspec-in-bare.sh +++ b/t/t6136-pathspec-in-bare.sh @@ -2,6 +2,7 @@ test_description='diagnosing out-of-scope pathspec' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'setup a bare and non-bare repository' ' diff --git a/t/t6200-fmt-merge-msg.sh b/t/t6200-fmt-merge-msg.sh index 06c5fb5615..6e10a539ce 100755 --- a/t/t6200-fmt-merge-msg.sh +++ b/t/t6200-fmt-merge-msg.sh @@ -91,6 +91,26 @@ test_expect_success GPGSSH 'created ssh signed commit and tag' ' git tag -s -u"${GPGSSH_KEY_UNTRUSTED}" -m signed-ssh-tag-msg-untrusted signed-untrusted-ssh-tag left ' +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'create signed tags with keys having defined lifetimes' ' + test_when_finished "test_unconfig commit.gpgsign" && + test_config gpg.format ssh && + git checkout -b signed-expiry-ssh && + touch file && + git add file && + + echo expired >file && test_tick && git commit -a -m expired -S"${GPGSSH_KEY_EXPIRED}" && + git tag -s -u "${GPGSSH_KEY_EXPIRED}" -m expired-signed expired-signed && + + echo notyetvalid >file && test_tick && git commit -a -m notyetvalid -S"${GPGSSH_KEY_NOTYETVALID}" && + git tag -s -u "${GPGSSH_KEY_NOTYETVALID}" -m notyetvalid-signed notyetvalid-signed && + + echo timeboxedvalid >file && test_tick && git commit -a -m timeboxedvalid -S"${GPGSSH_KEY_TIMEBOXEDVALID}" && + git tag -s -u "${GPGSSH_KEY_TIMEBOXEDVALID}" -m timeboxedvalid-signed timeboxedvalid-signed && + + echo timeboxedinvalid >file && test_tick && git commit -a -m timeboxedinvalid -S"${GPGSSH_KEY_TIMEBOXEDINVALID}" && + git tag -s -u "${GPGSSH_KEY_TIMEBOXEDINVALID}" -m timeboxedinvalid-signed timeboxedinvalid-signed +' + test_expect_success 'message for merging local branch' ' echo "Merge branch ${apos}left${apos}" >expected && @@ -104,7 +124,7 @@ test_expect_success 'message for merging local branch' ' test_expect_success GPG 'message for merging local tag signed by good key' ' git checkout main && git fetch . signed-good-tag && - git fmt-merge-msg <.git/FETCH_HEAD >actual 2>&1 && + git fmt-merge-msg <.git/FETCH_HEAD >actual && grep "^Merge tag ${apos}signed-good-tag${apos}" actual && grep "^# gpg: Signature made" actual && grep "^# gpg: Good signature from" actual @@ -113,7 +133,7 @@ test_expect_success GPG 'message for merging local tag signed by good key' ' test_expect_success GPG 'message for merging local tag signed by unknown key' ' git checkout main && git fetch . signed-good-tag && - GNUPGHOME=. git fmt-merge-msg <.git/FETCH_HEAD >actual 2>&1 && + GNUPGHOME=. git fmt-merge-msg <.git/FETCH_HEAD >actual && grep "^Merge tag ${apos}signed-good-tag${apos}" actual && grep "^# gpg: Signature made" actual && grep -E "^# gpg: Can${apos}t check signature: (public key not found|No public key)" actual @@ -123,7 +143,8 @@ test_expect_success GPGSSH 'message for merging local tag signed by good ssh key test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && git checkout main && git fetch . signed-good-ssh-tag && - git fmt-merge-msg <.git/FETCH_HEAD >actual 2>&1 && + git fmt-merge-msg <.git/FETCH_HEAD >actual && + grep "^Merge tag ${apos}signed-good-ssh-tag${apos}" actual && grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual && ! grep "${GPGSSH_BAD_SIGNATURE}" actual ' @@ -132,11 +153,50 @@ test_expect_success GPGSSH 'message for merging local tag signed by unknown ssh test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && git checkout main && git fetch . signed-untrusted-ssh-tag && - git fmt-merge-msg <.git/FETCH_HEAD >actual 2>&1 && + git fmt-merge-msg <.git/FETCH_HEAD >actual && + grep "^Merge tag ${apos}signed-untrusted-ssh-tag${apos}" actual && grep "${GPGSSH_GOOD_SIGNATURE_UNTRUSTED}" actual && ! grep "${GPGSSH_BAD_SIGNATURE}" actual && grep "${GPGSSH_KEY_NOT_TRUSTED}" actual ' + +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'message for merging local tag signed by expired ssh key' ' + test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && + git checkout main && + git fetch . expired-signed && + git fmt-merge-msg <.git/FETCH_HEAD >actual && + grep "^Merge tag ${apos}expired-signed${apos}" actual && + ! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual +' + +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'message for merging local tag signed by not yet valid ssh key' ' + test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && + git checkout main && + git fetch . notyetvalid-signed && + git fmt-merge-msg <.git/FETCH_HEAD >actual && + grep "^Merge tag ${apos}notyetvalid-signed${apos}" actual && + ! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual +' + +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'message for merging local tag signed by valid timeboxed ssh key' ' + test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && + git checkout main && + git fetch . timeboxedvalid-signed && + git fmt-merge-msg <.git/FETCH_HEAD >actual && + grep "^Merge tag ${apos}timeboxedvalid-signed${apos}" actual && + grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual && + ! grep "${GPGSSH_BAD_SIGNATURE}" actual +' + +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'message for merging local tag signed by invalid timeboxed ssh key' ' + test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && + git checkout main && + git fetch . timeboxedinvalid-signed && + git fmt-merge-msg <.git/FETCH_HEAD >actual && + grep "^Merge tag ${apos}timeboxedinvalid-signed${apos}" actual && + ! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual +' + test_expect_success 'message for merging external branch' ' echo "Merge branch ${apos}left${apos} of $(pwd)" >expected && diff --git a/t/t6300-for-each-ref.sh b/t/t6300-for-each-ref.sh index 9f2c706c12..6aa9fb17ea 100755 --- a/t/t6300-for-each-ref.sh +++ b/t/t6300-for-each-ref.sh @@ -5,9 +5,6 @@ test_description='for-each-ref test' -GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master -export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME - . ./test-lib.sh . "$TEST_DIRECTORY"/lib-gpg.sh . "$TEST_DIRECTORY"/lib-terminal.sh diff --git a/t/t6302-for-each-ref-filter.sh b/t/t6302-for-each-ref-filter.sh index 1537aa2179..1ce5f490e9 100755 --- a/t/t6302-for-each-ref-filter.sh +++ b/t/t6302-for-each-ref-filter.sh @@ -2,9 +2,6 @@ test_description='test for-each-refs usage of ref-filter APIs' -GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main -export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME - . ./test-lib.sh . "$TEST_DIRECTORY"/lib-gpg.sh diff --git a/t/t6427-diff3-conflict-markers.sh b/t/t6427-diff3-conflict-markers.sh index 25c4b720e7..a9ee4cb207 100755 --- a/t/t6427-diff3-conflict-markers.sh +++ b/t/t6427-diff3-conflict-markers.sh @@ -211,4 +211,94 @@ test_expect_success 'rebase --apply describes fake ancestor base' ' ) ' +test_setup_zdiff3 () { + test_create_repo zdiff3 && + ( + cd zdiff3 && + + test_write_lines 1 2 3 4 5 6 7 8 9 >basic && + test_write_lines 1 2 3 AA 4 5 BB 6 7 8 >middle-common && + test_write_lines 1 2 3 4 5 6 7 8 9 >interesting && + test_write_lines 1 2 3 4 5 6 7 8 9 >evil && + + git add basic middle-common interesting evil && + git commit -m base && + + git branch left && + git branch right && + + git checkout left && + test_write_lines 1 2 3 4 A B C D E 7 8 9 >basic && + test_write_lines 1 2 3 CC 4 5 DD 6 7 8 >middle-common && + test_write_lines 1 2 3 4 A B C D E F G H I J 7 8 9 >interesting && + test_write_lines 1 2 3 4 X A B C 7 8 9 >evil && + git add -u && + git commit -m letters && + + git checkout right && + test_write_lines 1 2 3 4 A X C Y E 7 8 9 >basic && + test_write_lines 1 2 3 EE 4 5 FF 6 7 8 >middle-common && + test_write_lines 1 2 3 4 A B C 5 6 G H I J 7 8 9 >interesting && + test_write_lines 1 2 3 4 Y A B C B C 7 8 9 >evil && + git add -u && + git commit -m permuted + ) +} + +test_expect_success 'check zdiff3 markers' ' + test_setup_zdiff3 && + ( + cd zdiff3 && + + git checkout left^0 && + + base=$(git rev-parse --short HEAD^1) && + test_must_fail git -c merge.conflictstyle=zdiff3 merge -s recursive right^0 && + + test_write_lines 1 2 3 4 A \ + "<<<<<<< HEAD" B C D \ + "||||||| $base" 5 6 \ + ======= X C Y \ + ">>>>>>> right^0" \ + E 7 8 9 \ + >expect && + test_cmp expect basic && + + test_write_lines 1 2 3 \ + "<<<<<<< HEAD" CC \ + "||||||| $base" AA \ + ======= EE \ + ">>>>>>> right^0" \ + 4 5 \ + "<<<<<<< HEAD" DD \ + "||||||| $base" BB \ + ======= FF \ + ">>>>>>> right^0" \ + 6 7 8 \ + >expect && + test_cmp expect middle-common && + + test_write_lines 1 2 3 4 A B C \ + "<<<<<<< HEAD" D E F \ + "||||||| $base" 5 6 \ + ======= 5 6 \ + ">>>>>>> right^0" \ + G H I J 7 8 9 \ + >expect && + test_cmp expect interesting && + + # Not passing this one yet; the common "B C" lines is still + # being left in the conflict blocks on the left and right + # sides. + test_write_lines 1 2 3 4 \ + "<<<<<<< HEAD" X A \ + "||||||| $base" 5 6 \ + ======= Y A B C \ + ">>>>>>> right^0" \ + B C 7 8 9 \ + >expect && + test_cmp expect evil + ) +' + test_done diff --git a/t/t7031-verify-tag-signed-ssh.sh b/t/t7031-verify-tag-signed-ssh.sh index 06c9dd6c93..1cb36b9ab8 100755 --- a/t/t7031-verify-tag-signed-ssh.sh +++ b/t/t7031-verify-tag-signed-ssh.sh @@ -48,6 +48,23 @@ test_expect_success GPGSSH 'create signed tags ssh' ' git tag -u"${GPGSSH_KEY_UNTRUSTED}" -m eighth eighth-signed-alt ' +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'create signed tags with keys having defined lifetimes' ' + test_when_finished "test_unconfig commit.gpgsign" && + test_config gpg.format ssh && + + echo expired >file && test_tick && git commit -a -m expired -S"${GPGSSH_KEY_EXPIRED}" && + git tag -s -u "${GPGSSH_KEY_EXPIRED}" -m expired-signed expired-signed && + + echo notyetvalid >file && test_tick && git commit -a -m notyetvalid -S"${GPGSSH_KEY_NOTYETVALID}" && + git tag -s -u "${GPGSSH_KEY_NOTYETVALID}" -m notyetvalid-signed notyetvalid-signed && + + echo timeboxedvalid >file && test_tick && git commit -a -m timeboxedvalid -S"${GPGSSH_KEY_TIMEBOXEDVALID}" && + git tag -s -u "${GPGSSH_KEY_TIMEBOXEDVALID}" -m timeboxedvalid-signed timeboxedvalid-signed && + + echo timeboxedinvalid >file && test_tick && git commit -a -m timeboxedinvalid -S"${GPGSSH_KEY_TIMEBOXEDINVALID}" && + git tag -s -u "${GPGSSH_KEY_TIMEBOXEDINVALID}" -m timeboxedinvalid-signed timeboxedinvalid-signed +' + test_expect_success GPGSSH 'verify and show ssh signatures' ' test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && ( @@ -80,6 +97,31 @@ test_expect_success GPGSSH 'verify and show ssh signatures' ' ) ' +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'verify-tag exits failure on expired signature key' ' + test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && + test_must_fail git verify-tag expired-signed 2>actual && + ! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual +' + +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'verify-tag exits failure on not yet valid signature key' ' + test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && + test_must_fail git verify-tag notyetvalid-signed 2>actual && + ! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual +' + +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'verify-tag succeeds with tag date and key validity matching' ' + test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && + git verify-tag timeboxedvalid-signed 2>actual && + grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual && + ! grep "${GPGSSH_BAD_SIGNATURE}" actual +' + +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'verify-tag failes with tag date outside of key validity' ' + test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && + test_must_fail git verify-tag timeboxedinvalid-signed 2>actual && + ! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual +' + test_expect_success GPGSSH 'detect fudged ssh signature' ' test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && git cat-file tag seventh-signed >raw && diff --git a/t/t7064-wtstatus-pv2.sh b/t/t7064-wtstatus-pv2.sh index 47fc21d962..20a0d2afc2 100755 --- a/t/t7064-wtstatus-pv2.sh +++ b/t/t7064-wtstatus-pv2.sh @@ -4,10 +4,6 @@ test_description='git status --porcelain=v2 This test exercises porcelain V2 output for git status.' - -GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master -export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME - . ./test-lib.sh diff --git a/t/t7101-reset-empty-subdirs.sh b/t/t7101-reset-empty-subdirs.sh index 5530651eea..638bb04e21 100755 --- a/t/t7101-reset-empty-subdirs.sh +++ b/t/t7101-reset-empty-subdirs.sh @@ -4,6 +4,8 @@ # test_description='git reset should cull empty subdirs' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-diff-data.sh diff --git a/t/t7103-reset-bare.sh b/t/t7103-reset-bare.sh index afe36a533c..0de83e3619 100755 --- a/t/t7103-reset-bare.sh +++ b/t/t7103-reset-bare.sh @@ -1,6 +1,8 @@ #!/bin/sh test_description='git reset in a bare repository' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'setup non-bare' ' diff --git a/t/t7510-signed-commit.sh b/t/t7510-signed-commit.sh index d65a0171f2..9882b69ae2 100755 --- a/t/t7510-signed-commit.sh +++ b/t/t7510-signed-commit.sh @@ -228,7 +228,7 @@ test_expect_success GPG 'detect fudged signature with NUL' ' ' test_expect_success GPG 'amending already signed commit' ' - git checkout fourth-signed^0 && + git checkout -f fourth-signed^0 && git commit --amend -S --no-edit && git verify-commit HEAD && git show -s --show-signature HEAD >actual && diff --git a/t/t7511-status-index.sh b/t/t7511-status-index.sh index b5fdc048a5..4ffa45a7bf 100755 --- a/t/t7511-status-index.sh +++ b/t/t7511-status-index.sh @@ -2,6 +2,7 @@ test_description='git status with certain file name lengths' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh files="0 1 2 3 4 5 6 7 8 9 a b c d e f g h i j k l m n o p q r s t u v w x y z" diff --git a/t/t7515-status-symlinks.sh b/t/t7515-status-symlinks.sh index 9f989be01b..e3d6bb67bf 100755 --- a/t/t7515-status-symlinks.sh +++ b/t/t7515-status-symlinks.sh @@ -2,6 +2,7 @@ test_description='git status and symlinks' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'setup' ' diff --git a/t/t7519-status-fsmonitor.sh b/t/t7519-status-fsmonitor.sh index f488d930df..a5e2233cb1 100755 --- a/t/t7519-status-fsmonitor.sh +++ b/t/t7519-status-fsmonitor.sh @@ -390,7 +390,7 @@ test_expect_success 'status succeeds after staging/unstaging' ' # during a call to 'git status'. Otherwise, we verify that we _do_ call it. check_sparse_index_behavior () { git -C full status --porcelain=v2 >expect && - GIT_TRACE2_EVENT="$(pwd)/trace2.txt" GIT_TRACE2_EVENT_NESTING=10 \ + GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \ git -C sparse status --porcelain=v2 >actual && test_region $1 index ensure_full_index trace2.txt && test_region fsm_hook query trace2.txt && diff --git a/t/t7525-status-rename.sh b/t/t7525-status-rename.sh index a62736dce0..22bf5c7e5d 100755 --- a/t/t7525-status-rename.sh +++ b/t/t7525-status-rename.sh @@ -2,6 +2,7 @@ test_description='git status rename detection options' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'setup' ' diff --git a/t/t7526-commit-pathspec-file.sh b/t/t7526-commit-pathspec-file.sh index 5fbe47ebcd..dca62fc48e 100755 --- a/t/t7526-commit-pathspec-file.sh +++ b/t/t7526-commit-pathspec-file.sh @@ -2,6 +2,7 @@ test_description='commit --pathspec-from-file' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_tick diff --git a/t/t7528-signed-commit-ssh.sh b/t/t7528-signed-commit-ssh.sh index badf3ed320..f47e995179 100755 --- a/t/t7528-signed-commit-ssh.sh +++ b/t/t7528-signed-commit-ssh.sh @@ -73,7 +73,46 @@ test_expect_success GPGSSH 'create signed commits' ' git tag eleventh-signed $(cat oid) && echo 12 | git commit-tree --gpg-sign="${GPGSSH_KEY_UNTRUSTED}" HEAD^{tree} >oid && test_line_count = 1 oid && - git tag twelfth-signed-alt $(cat oid) + git tag twelfth-signed-alt $(cat oid) && + + echo 13>file && test_tick && git commit -a -m thirteenth -S"${GPGSSH_KEY_ECDSA}" && + git tag thirteenth-signed-ecdsa +' + +test_expect_success GPGSSH 'sign commits using literal public keys with ssh-agent' ' + test_when_finished "test_unconfig commit.gpgsign" && + test_config gpg.format ssh && + eval $(ssh-agent) && + test_when_finished "kill ${SSH_AGENT_PID}" && + ssh-add "${GPGSSH_KEY_PRIMARY}" && + echo 1 >file && git add file && + git commit -a -m rsa-inline -S"$(cat "${GPGSSH_KEY_PRIMARY}.pub")" && + echo 2 >file && + test_config user.signingkey "$(cat "${GPGSSH_KEY_PRIMARY}.pub")" && + git commit -a -m rsa-config -S && + ssh-add "${GPGSSH_KEY_ECDSA}" && + echo 3 >file && + git commit -a -m ecdsa-inline -S"key::$(cat "${GPGSSH_KEY_ECDSA}.pub")" && + echo 4 >file && + test_config user.signingkey "key::$(cat "${GPGSSH_KEY_ECDSA}.pub")" && + git commit -a -m ecdsa-config -S +' + +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'create signed commits with keys having defined lifetimes' ' + test_when_finished "test_unconfig commit.gpgsign" && + test_config gpg.format ssh && + + echo expired >file && test_tick && git commit -a -m expired -S"${GPGSSH_KEY_EXPIRED}" && + git tag expired-signed && + + echo notyetvalid >file && test_tick && git commit -a -m notyetvalid -S"${GPGSSH_KEY_NOTYETVALID}" && + git tag notyetvalid-signed && + + echo timeboxedvalid >file && test_tick && git commit -a -m timeboxedvalid -S"${GPGSSH_KEY_TIMEBOXEDVALID}" && + git tag timeboxedvalid-signed && + + echo timeboxedinvalid >file && test_tick && git commit -a -m timeboxedinvalid -S"${GPGSSH_KEY_TIMEBOXEDINVALID}" && + git tag timeboxedinvalid-signed ' test_expect_success GPGSSH 'verify and show signatures' ' @@ -122,6 +161,31 @@ test_expect_success GPGSSH 'verify-commit exits failure on untrusted signature' grep "${GPGSSH_KEY_NOT_TRUSTED}" actual ' +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'verify-commit exits failure on expired signature key' ' + test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && + test_must_fail git verify-commit expired-signed 2>actual && + ! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual +' + +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'verify-commit exits failure on not yet valid signature key' ' + test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && + test_must_fail git verify-commit notyetvalid-signed 2>actual && + ! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual +' + +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'verify-commit succeeds with commit date and key validity matching' ' + test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && + git verify-commit timeboxedvalid-signed 2>actual && + grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual && + ! grep "${GPGSSH_BAD_SIGNATURE}" actual +' + +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'verify-commit exits failure with commit date outside of key validity' ' + test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && + test_must_fail git verify-commit timeboxedinvalid-signed 2>actual && + ! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual +' + test_expect_success GPGSSH 'verify-commit exits success with matching minTrustLevel' ' test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && test_config gpg.minTrustLevel fully && @@ -217,7 +281,7 @@ test_expect_success GPGSSH 'amending already signed commit' ' test_config gpg.format ssh && test_config user.signingkey "${GPGSSH_KEY_PRIMARY}" && test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && - git checkout fourth-signed^0 && + git checkout -f fourth-signed^0 && git commit --amend -S --no-edit && git verify-commit HEAD && git show -s --show-signature HEAD >actual && diff --git a/t/t9151-svn-mergeinfo.sh b/t/t9151-svn-mergeinfo.sh index 1fbe84feb1..c93a5beab2 100755 --- a/t/t9151-svn-mergeinfo.sh +++ b/t/t9151-svn-mergeinfo.sh @@ -5,9 +5,6 @@ test_description='git-svn svn mergeinfo properties' -GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main -export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME - . ./lib-git-svn.sh test_expect_success 'load svn dump' " diff --git a/t/t9302-fast-import-unpack-limit.sh b/t/t9302-fast-import-unpack-limit.sh index f519e4f1bf..d8b1f9442e 100755 --- a/t/t9302-fast-import-unpack-limit.sh +++ b/t/t9302-fast-import-unpack-limit.sh @@ -1,5 +1,7 @@ #!/bin/sh test_description='test git fast-import unpack limit' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'create loose objects on import' ' diff --git a/t/t9303-fast-import-compression.sh b/t/t9303-fast-import-compression.sh index 57d916524e..4f5bf40587 100755 --- a/t/t9303-fast-import-compression.sh +++ b/t/t9303-fast-import-compression.sh @@ -1,6 +1,8 @@ #!/bin/sh test_description='compression setting of fast-import utility' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh import_large () { diff --git a/t/t9603-cvsimport-patchsets.sh b/t/t9603-cvsimport-patchsets.sh index 0e9daa5768..19f38f78f2 100755 --- a/t/t9603-cvsimport-patchsets.sh +++ b/t/t9603-cvsimport-patchsets.sh @@ -12,9 +12,6 @@ # bug. test_description='git cvsimport testing for correct patchset estimation' -GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main -export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME - . ./lib-cvs.sh setup_cvs_test_repository t9603 diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh index 518203fbe0..0f28c4ad94 100755 --- a/t/t9902-completion.sh +++ b/t/t9902-completion.sh @@ -5,9 +5,6 @@ test_description='test bash completion' -GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master -export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME - . ./lib-bash.sh complete () diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh index eef2262a36..389153e591 100644 --- a/t/test-lib-functions.sh +++ b/t/test-lib-functions.sh @@ -680,6 +680,17 @@ test_have_prereq () { # Keep a list of missing prerequisites; restore # the negative marker if necessary. prerequisite=${negative_prereq:+!}$prerequisite + + # Abort if this prereq was marked as required + if test -n "$GIT_TEST_REQUIRE_PREREQ" + then + case " $GIT_TEST_REQUIRE_PREREQ " in + *" $prerequisite "*) + BAIL_OUT "required prereq $prerequisite failed" + ;; + esac + fi + if test -z "$missing_prereq" then missing_prereq=$prerequisite diff --git a/t/test-lib.sh b/t/test-lib.sh index 57efcc5e97..0f7a137c7d 100644 --- a/t/test-lib.sh +++ b/t/test-lib.sh @@ -476,6 +476,13 @@ export GIT_TEST_MERGE_ALGORITHM GIT_TRACE_BARE=1 export GIT_TRACE_BARE +# Some tests scan the GIT_TRACE2_EVENT feed for events, but the +# default depth is 2, which frequently causes issues when the +# events are wrapped in new regions. Set it to a sufficiently +# large depth to avoid custom changes in the test suite. +GIT_TRACE2_EVENT_NESTING=100 +export GIT_TRACE2_EVENT_NESTING + # Use specific version of the index file format if test -n "${GIT_TEST_INDEX_VERSION:+isset}" then @@ -489,6 +496,13 @@ then export GIT_PERL_FATAL_WARNINGS fi +case $GIT_TEST_FSYNC in +'') + GIT_TEST_FSYNC=0 + export GIT_TEST_FSYNC + ;; +esac + # Add libc MALLOC and MALLOC_PERTURB test # only if we are not executing the test with valgrind if test -n "$valgrind" || @@ -589,6 +603,15 @@ USER_TERM="$TERM" TERM=dumb export TERM USER_TERM +# What is written by tests to stdout and stderr is sent to different places +# depending on the test mode (e.g. /dev/null in non-verbose mode, piped to tee +# with --tee option, etc.). We save the original stdin to FD #6 and stdout and +# stderr to #5 and #7, so that the test framework can use them (e.g. for +# printing errors within the test framework) independently of the test mode. +exec 5>&1 +exec 6<&0 +exec 7>&2 + _error_exit () { finalize_junit_xml GIT_EXIT_OK=t @@ -612,7 +635,7 @@ BAIL_OUT () { local bail_out="Bail out! " local message="$1" - say_color error $bail_out "$message" + say_color >&5 error $bail_out "$message" _error_exit } @@ -637,9 +660,6 @@ then exit 0 fi -exec 5>&1 -exec 6<&0 -exec 7>&2 if test "$verbose_log" = "t" then exec 3>>"$GIT_TEST_TEE_OUTPUT_FILE" 4>&3 @@ -669,6 +689,8 @@ test_fixed=0 test_broken=0 test_success=0 +test_missing_prereq= + test_external_has_tap=0 die () { @@ -1069,6 +1091,14 @@ test_skip () { of_prereq=" of $test_prereq" fi skipped_reason="missing $missing_prereq${of_prereq}" + + # Keep a list of all the missing prereq for result aggregation + if test -z "$missing_prereq" + then + test_missing_prereq=$missing_prereq + else + test_missing_prereq="$test_missing_prereq,$missing_prereq" + fi fi case "$to_skip" in @@ -1175,6 +1205,7 @@ test_done () { fixed $test_fixed broken $test_broken failed $test_failure + missing_prereq $test_missing_prereq EOF fi @@ -25,8 +25,9 @@ static int run_gpg_verify(const char *buf, unsigned long size, unsigned flags) return error("no signature found"); } - ret = check_signature(payload.buf, payload.len, signature.buf, - signature.len, &sigc); + sigc.payload_type = SIGNATURE_PAYLOAD_TAG; + sigc.payload = strbuf_detach(&payload, &sigc.payload_len); + ret = check_signature(&sigc, signature.buf, signature.len); if (!(flags & GPG_VERIFY_OMIT_STATUS)) print_signature_buffer(&sigc, flags); diff --git a/trace2/tr2_tgt_event.c b/trace2/tr2_tgt_event.c index 3a0014417c..bd17ecdc32 100644 --- a/trace2/tr2_tgt_event.c +++ b/trace2/tr2_tgt_event.c @@ -354,7 +354,7 @@ static void fn_child_start_fl(const char *file, int line, jw_object_inline_begin_array(&jw, "argv"); if (cmd->git_cmd) jw_array_string(&jw, "git"); - jw_array_argv(&jw, cmd->argv); + jw_array_argv(&jw, cmd->args.v); jw_end(&jw); jw_end(&jw); diff --git a/trace2/tr2_tgt_normal.c b/trace2/tr2_tgt_normal.c index 58d9e430f0..6e429a3fb9 100644 --- a/trace2/tr2_tgt_normal.c +++ b/trace2/tr2_tgt_normal.c @@ -232,7 +232,7 @@ static void fn_child_start_fl(const char *file, int line, strbuf_addch(&buf_payload, ' '); if (cmd->git_cmd) strbuf_addstr(&buf_payload, "git "); - sq_append_quote_argv_pretty(&buf_payload, cmd->argv); + sq_append_quote_argv_pretty(&buf_payload, cmd->args.v); normal_io_write_fl(file, line, &buf_payload); strbuf_release(&buf_payload); diff --git a/trace2/tr2_tgt_perf.c b/trace2/tr2_tgt_perf.c index e4acca13d6..2ff9cf7083 100644 --- a/trace2/tr2_tgt_perf.c +++ b/trace2/tr2_tgt_perf.c @@ -335,10 +335,10 @@ static void fn_child_start_fl(const char *file, int line, strbuf_addstr(&buf_payload, " argv:["); if (cmd->git_cmd) { strbuf_addstr(&buf_payload, "git"); - if (cmd->argv[0]) + if (cmd->args.nr) strbuf_addch(&buf_payload, ' '); } - sq_append_quote_argv_pretty(&buf_payload, cmd->argv); + sq_append_quote_argv_pretty(&buf_payload, cmd->args.v); strbuf_addch(&buf_payload, ']'); perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute, @@ -236,7 +236,7 @@ static char *apply_command(struct conf_info *conf, const char *arg) strbuf_replace(&cmd, TRAILER_ARG_STRING, arg); strvec_push(&cp.args, cmd.buf); } - cp.env = local_repo_env; + strvec_pushv(&cp.env_array, (const char **)local_repo_env); cp.no_stdin = 1; cp.use_shell = 1; diff --git a/transport.c b/transport.c index e4f1decae2..92ab9a3fa6 100644 --- a/transport.c +++ b/transport.c @@ -1204,16 +1204,15 @@ static int run_pre_push_hook(struct transport *transport, struct ref *r; struct child_process proc = CHILD_PROCESS_INIT; struct strbuf buf; - const char *argv[4]; + const char *hook_path = find_hook("pre-push"); - if (!(argv[0] = find_hook("pre-push"))) + if (!hook_path) return 0; - argv[1] = transport->remote->name; - argv[2] = transport->url; - argv[3] = NULL; + strvec_push(&proc.args, hook_path); + strvec_push(&proc.args, transport->remote->name); + strvec_push(&proc.args, transport->url); - proc.argv = argv; proc.in = -1; proc.trace2_hook_name = "pre-push"; diff --git a/tree-diff.c b/tree-diff.c index 437c98a70e..69031d7cba 100644 --- a/tree-diff.c +++ b/tree-diff.c @@ -603,8 +603,7 @@ static void try_to_follow_renames(const struct object_id *old_oid, * about dry-run mode and returns wildcard info. */ if (opt->pathspec.has_wildcard) - die("BUG:%s:%d: wildcards are not supported", - __FILE__, __LINE__); + BUG("wildcards are not supported"); #endif /* Remove the file creation entry from the diff queue, and remember it */ diff --git a/unpack-trees.c b/unpack-trees.c index b71fdab5e3..98e2f2e0e6 100644 --- a/unpack-trees.c +++ b/unpack-trees.c @@ -1238,7 +1238,9 @@ static int find_cache_pos(struct traverse_info *info, /* * Given a sparse directory entry 'ce', compare ce->name to - * info->name + '/' + p->path + '/' if info->name is non-empty. + * info->traverse_path + p->path + '/' if info->traverse_path + * is non-empty. + * * Compare ce->name to p->path + '/' otherwise. Note that * ce->name must end in a trailing '/' because it is a sparse * directory entry. @@ -1250,11 +1252,11 @@ static int sparse_dir_matches_path(const struct cache_entry *ce, assert(S_ISSPARSEDIR(ce->ce_mode)); assert(ce->name[ce->ce_namelen - 1] == '/'); - if (info->namelen) - return ce->ce_namelen == info->namelen + p->pathlen + 2 && - ce->name[info->namelen] == '/' && - !strncmp(ce->name, info->name, info->namelen) && - !strncmp(ce->name + info->namelen + 1, p->path, p->pathlen); + if (info->pathlen) + return ce->ce_namelen == info->pathlen + p->pathlen + 1 && + ce->name[info->pathlen - 1] == '/' && + !strncmp(ce->name, info->traverse_path, info->pathlen) && + !strncmp(ce->name + info->pathlen, p->path, p->pathlen); return ce->ce_namelen == p->pathlen + 1 && !strncmp(ce->name, p->path, p->pathlen); } diff --git a/upload-pack.c b/upload-pack.c index c78d55bc67..9b5db32623 100644 --- a/upload-pack.c +++ b/upload-pack.c @@ -596,14 +596,11 @@ static int do_reachable_revlist(struct child_process *cmd, struct object_array *reachable, enum allow_uor allow_uor) { - static const char *argv[] = { - "rev-list", "--stdin", NULL, - }; struct object *o; FILE *cmd_in = NULL; int i; - cmd->argv = argv; + strvec_pushl(&cmd->args, "rev-list", "--stdin", NULL); cmd->git_cmd = 1; cmd->no_stderr = 1; cmd->in = -1; diff --git a/worktree.c b/worktree.c index 2c155b1015..6f598dcfcd 100644 --- a/worktree.c +++ b/worktree.c @@ -404,17 +404,13 @@ int is_worktree_being_bisected(const struct worktree *wt, * bisect). New commands that do similar things should update this * function as well. */ -const struct worktree *find_shared_symref(const char *symref, +const struct worktree *find_shared_symref(struct worktree **worktrees, + const char *symref, const char *target) { const struct worktree *existing = NULL; - static struct worktree **worktrees; int i = 0; - if (worktrees) - free_worktrees(worktrees); - worktrees = get_worktrees(); - for (i = 0; worktrees[i]; i++) { struct worktree *wt = worktrees[i]; const char *symref_target; diff --git a/worktree.h b/worktree.h index 8b7c408132..9e06fcbdf3 100644 --- a/worktree.h +++ b/worktree.h @@ -143,9 +143,10 @@ void free_worktrees(struct worktree **); /* * Check if a per-worktree symref points to a ref in the main worktree * or any linked worktree, and return the worktree that holds the ref, - * or NULL otherwise. The result may be destroyed by the next call. + * or NULL otherwise. */ -const struct worktree *find_shared_symref(const char *symref, +const struct worktree *find_shared_symref(struct worktree **worktrees, + const char *symref, const char *target); /* diff --git a/write-or-die.c b/write-or-die.c index 0b1ec8190b..a3d5784cec 100644 --- a/write-or-die.c +++ b/write-or-die.c @@ -1,4 +1,5 @@ #include "cache.h" +#include "config.h" #include "run-command.h" /* @@ -57,6 +58,10 @@ void fprintf_or_die(FILE *f, const char *fmt, ...) void fsync_or_die(int fd, const char *msg) { + if (use_fsync < 0) + use_fsync = git_env_bool("GIT_TEST_FSYNC", 1); + if (!use_fsync) + return; while (fsync(fd) < 0) { if (errno != EINTR) die_errno("fsync error on '%s'", msg); diff --git a/xdiff-interface.c b/xdiff-interface.c index 75b32aef51..2e3a5a2943 100644 --- a/xdiff-interface.c +++ b/xdiff-interface.c @@ -313,6 +313,8 @@ int git_xmerge_config(const char *var, const char *value, void *cb) die("'%s' is not a boolean", var); if (!strcmp(value, "diff3")) git_xmerge_style = XDL_MERGE_DIFF3; + else if (!strcmp(value, "zdiff3")) + git_xmerge_style = XDL_MERGE_ZEALOUS_DIFF3; else if (!strcmp(value, "merge")) git_xmerge_style = 0; /* diff --git a/xdiff/xdiff.h b/xdiff/xdiff.h index b29deca5de..72e25a9ffa 100644 --- a/xdiff/xdiff.h +++ b/xdiff/xdiff.h @@ -66,6 +66,7 @@ extern "C" { /* merge output styles */ #define XDL_MERGE_DIFF3 1 +#define XDL_MERGE_ZEALOUS_DIFF3 2 typedef struct s_mmfile { char *ptr; diff --git a/xdiff/xdiffi.c b/xdiff/xdiffi.c index a4542c05b6..69689fab24 100644 --- a/xdiff/xdiffi.c +++ b/xdiff/xdiffi.c @@ -390,12 +390,9 @@ static xdchange_t *xdl_add_change(xdchange_t *xscr, long i1, long i2, long chg1, } -static int recs_match(xrecord_t *rec1, xrecord_t *rec2, long flags) +static int recs_match(xrecord_t *rec1, xrecord_t *rec2) { - return (rec1->ha == rec2->ha && - xdl_recmatch(rec1->ptr, rec1->size, - rec2->ptr, rec2->size, - flags)); + return (rec1->ha == rec2->ha); } /* @@ -759,10 +756,10 @@ static inline int group_previous(xdfile_t *xdf, struct xdlgroup *g) * following group, expand this group to include it. Return 0 on success or -1 * if g cannot be slid down. */ -static int group_slide_down(xdfile_t *xdf, struct xdlgroup *g, long flags) +static int group_slide_down(xdfile_t *xdf, struct xdlgroup *g) { if (g->end < xdf->nrec && - recs_match(xdf->recs[g->start], xdf->recs[g->end], flags)) { + recs_match(xdf->recs[g->start], xdf->recs[g->end])) { xdf->rchg[g->start++] = 0; xdf->rchg[g->end++] = 1; @@ -780,10 +777,10 @@ static int group_slide_down(xdfile_t *xdf, struct xdlgroup *g, long flags) * into a previous group, expand this group to include it. Return 0 on success * or -1 if g cannot be slid up. */ -static int group_slide_up(xdfile_t *xdf, struct xdlgroup *g, long flags) +static int group_slide_up(xdfile_t *xdf, struct xdlgroup *g) { if (g->start > 0 && - recs_match(xdf->recs[g->start - 1], xdf->recs[g->end - 1], flags)) { + recs_match(xdf->recs[g->start - 1], xdf->recs[g->end - 1])) { xdf->rchg[--g->start] = 1; xdf->rchg[--g->end] = 0; @@ -833,7 +830,7 @@ int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, long flags) { end_matching_other = -1; /* Shift the group backward as much as possible: */ - while (!group_slide_up(xdf, &g, flags)) + while (!group_slide_up(xdf, &g)) if (group_previous(xdfo, &go)) BUG("group sync broken sliding up"); @@ -848,7 +845,7 @@ int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, long flags) { /* Now shift the group forward as far as possible: */ while (1) { - if (group_slide_down(xdf, &g, flags)) + if (group_slide_down(xdf, &g)) break; if (group_next(xdfo, &go)) BUG("group sync broken sliding down"); @@ -875,7 +872,7 @@ int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, long flags) { * other file that it can align with. */ while (go.end == go.start) { - if (group_slide_up(xdf, &g, flags)) + if (group_slide_up(xdf, &g)) BUG("match disappeared"); if (group_previous(xdfo, &go)) BUG("group sync broken sliding to match"); @@ -918,7 +915,7 @@ int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, long flags) { } while (g.end > best_shift) { - if (group_slide_up(xdf, &g, flags)) + if (group_slide_up(xdf, &g)) BUG("best shift unreached"); if (group_previous(xdfo, &go)) BUG("group sync broken sliding to blank line"); diff --git a/xdiff/xhistogram.c b/xdiff/xhistogram.c index e694bfd9e3..80794748b0 100644 --- a/xdiff/xhistogram.c +++ b/xdiff/xhistogram.c @@ -88,19 +88,14 @@ struct region { #define REC(env, s, l) \ (env->xdf##s.recs[l - 1]) -static int cmp_recs(xpparam_t const *xpp, - xrecord_t *r1, xrecord_t *r2) +static int cmp_recs(xrecord_t *r1, xrecord_t *r2) { - return r1->ha == r2->ha && - xdl_recmatch(r1->ptr, r1->size, r2->ptr, r2->size, - xpp->flags); -} + return r1->ha == r2->ha; -#define CMP_ENV(xpp, env, s1, l1, s2, l2) \ - (cmp_recs(xpp, REC(env, s1, l1), REC(env, s2, l2))) +} #define CMP(i, s1, l1, s2, l2) \ - (cmp_recs(i->xpp, REC(i->env, s1, l1), REC(i->env, s2, l2))) + (cmp_recs(REC(i->env, s1, l1), REC(i->env, s2, l2))) #define TABLE_HASH(index, side, line) \ XDL_HASHLONG((REC(index->env, side, line))->ha, index->table_bits) diff --git a/xdiff/xmerge.c b/xdiff/xmerge.c index 1659edb453..fff0b594f9 100644 --- a/xdiff/xmerge.c +++ b/xdiff/xmerge.c @@ -230,7 +230,7 @@ static int fill_conflict_hunk(xdfenv_t *xe1, const char *name1, size += xdl_recs_copy(xe1, m->i1, m->chg1, needs_cr, 1, dest ? dest + size : NULL); - if (style == XDL_MERGE_DIFF3) { + if (style == XDL_MERGE_DIFF3 || style == XDL_MERGE_ZEALOUS_DIFF3) { /* Shared preimage */ if (!dest) { size += marker_size + 1 + needs_cr + marker3_size; @@ -322,6 +322,40 @@ static int xdl_fill_merge_buffer(xdfenv_t *xe1, const char *name1, return size; } +static int recmatch(xrecord_t *rec1, xrecord_t *rec2, unsigned long flags) +{ + return xdl_recmatch(rec1->ptr, rec1->size, + rec2->ptr, rec2->size, flags); +} + +/* + * Remove any common lines from the beginning and end of the conflicted region. + */ +static void xdl_refine_zdiff3_conflicts(xdfenv_t *xe1, xdfenv_t *xe2, xdmerge_t *m, + xpparam_t const *xpp) +{ + xrecord_t **rec1 = xe1->xdf2.recs, **rec2 = xe2->xdf2.recs; + for (; m; m = m->next) { + /* let's handle just the conflicts */ + if (m->mode) + continue; + + while(m->chg1 && m->chg2 && + recmatch(rec1[m->i1], rec2[m->i2], xpp->flags)) { + m->chg1--; + m->chg2--; + m->i1++; + m->i2++; + } + while (m->chg1 && m->chg2 && + recmatch(rec1[m->i1 + m->chg1 - 1], + rec2[m->i2 + m->chg2 - 1], xpp->flags)) { + m->chg1--; + m->chg2--; + } + } +} + /* * Sometimes, changes are not quite identical, but differ in only a few * lines. Try hard to show only these few lines as conflicting. @@ -482,7 +516,22 @@ static int xdl_do_merge(xdfenv_t *xe1, xdchange_t *xscr1, int style = xmp->style; int favor = xmp->favor; - if (style == XDL_MERGE_DIFF3) { + /* + * XDL_MERGE_DIFF3 does not attempt to refine conflicts by looking + * at common areas of sides 1 & 2, because the base (side 0) does + * not match and is being shown. Similarly, simplification of + * non-conflicts is also skipped due to the skipping of conflict + * refinement. + * + * XDL_MERGE_ZEALOUS_DIFF3, on the other hand, will attempt to + * refine conflicts looking for common areas of sides 1 & 2. + * However, since the base is being shown and does not match, + * it will only look for common areas at the beginning or end + * of the conflict block. Since XDL_MERGE_ZEALOUS_DIFF3's + * conflict refinement is much more limited in this fashion, the + * conflict simplification will be skipped. + */ + if (style == XDL_MERGE_DIFF3 || style == XDL_MERGE_ZEALOUS_DIFF3) { /* * "diff3 -m" output does not make sense for anything * more aggressive than XDL_MERGE_EAGER. @@ -603,10 +652,12 @@ static int xdl_do_merge(xdfenv_t *xe1, xdchange_t *xscr1, if (!changes) changes = c; /* refine conflicts */ - if (XDL_MERGE_ZEALOUS <= level && - (xdl_refine_conflicts(xe1, xe2, changes, xpp) < 0 || - xdl_simplify_non_conflicts(xe1, changes, - XDL_MERGE_ZEALOUS < level) < 0)) { + if (style == XDL_MERGE_ZEALOUS_DIFF3) { + xdl_refine_zdiff3_conflicts(xe1, xe2, changes, xpp); + } else if (XDL_MERGE_ZEALOUS <= level && + (xdl_refine_conflicts(xe1, xe2, changes, xpp) < 0 || + xdl_simplify_non_conflicts(xe1, changes, + XDL_MERGE_ZEALOUS < level) < 0)) { xdl_cleanup_merge(changes); return -1; } diff --git a/xdiff/xprepare.c b/xdiff/xprepare.c index abeb8fb84e..4527a4a07c 100644 --- a/xdiff/xprepare.c +++ b/xdiff/xprepare.c @@ -181,15 +181,11 @@ static int xdl_prepare_ctx(unsigned int pass, mmfile_t *mf, long narec, xpparam_ if (!(recs = (xrecord_t **) xdl_malloc(narec * sizeof(xrecord_t *)))) goto abort; - if (XDF_DIFF_ALG(xpp->flags) == XDF_HISTOGRAM_DIFF) - hbits = hsize = 0; - else { - hbits = xdl_hashbits((unsigned int) narec); - hsize = 1 << hbits; - if (!(rhash = (xrecord_t **) xdl_malloc(hsize * sizeof(xrecord_t *)))) - goto abort; - memset(rhash, 0, hsize * sizeof(xrecord_t *)); - } + hbits = xdl_hashbits((unsigned int) narec); + hsize = 1 << hbits; + if (!(rhash = (xrecord_t **) xdl_malloc(hsize * sizeof(xrecord_t *)))) + goto abort; + memset(rhash, 0, hsize * sizeof(xrecord_t *)); nrec = 0; if ((cur = blk = xdl_mmfile_first(mf, &bsize)) != NULL) { @@ -208,9 +204,7 @@ static int xdl_prepare_ctx(unsigned int pass, mmfile_t *mf, long narec, xpparam_ crec->size = (long) (cur - prev); crec->ha = hav; recs[nrec++] = crec; - - if ((XDF_DIFF_ALG(xpp->flags) != XDF_HISTOGRAM_DIFF) && - xdl_classify_record(pass, cf, rhash, hbits, crec) < 0) + if (xdl_classify_record(pass, cf, rhash, hbits, crec) < 0) goto abort; } } @@ -219,10 +213,13 @@ static int xdl_prepare_ctx(unsigned int pass, mmfile_t *mf, long narec, xpparam_ goto abort; memset(rchg, 0, (nrec + 2) * sizeof(char)); - if (!(rindex = (long *) xdl_malloc((nrec + 1) * sizeof(long)))) - goto abort; - if (!(ha = (unsigned long *) xdl_malloc((nrec + 1) * sizeof(unsigned long)))) - goto abort; + if ((XDF_DIFF_ALG(xpp->flags) != XDF_PATIENCE_DIFF) && + (XDF_DIFF_ALG(xpp->flags) != XDF_HISTOGRAM_DIFF)) { + if (!(rindex = xdl_malloc((nrec + 1) * sizeof(*rindex)))) + goto abort; + if (!(ha = xdl_malloc((nrec + 1) * sizeof(*ha)))) + goto abort; + } xdf->nrec = nrec; xdf->recs = recs; @@ -279,8 +276,7 @@ int xdl_prepare_env(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, enl1 = xdl_guess_lines(mf1, sample) + 1; enl2 = xdl_guess_lines(mf2, sample) + 1; - if (XDF_DIFF_ALG(xpp->flags) != XDF_HISTOGRAM_DIFF && - xdl_init_classifier(&cf, enl1 + enl2 + 1, xpp->flags) < 0) + if (xdl_init_classifier(&cf, enl1 + enl2 + 1, xpp->flags) < 0) return -1; if (xdl_prepare_ctx(1, mf1, enl1, xpp, &cf, &xe->xdf1) < 0) { @@ -305,8 +301,7 @@ int xdl_prepare_env(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, return -1; } - if (XDF_DIFF_ALG(xpp->flags) != XDF_HISTOGRAM_DIFF) - xdl_free_classifier(&cf); + xdl_free_classifier(&cf); return 0; } |