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2017-04-17ls-files: fix recurse-submodules with nested submodulesLibravatar Jacob Keller1-0/+1
Since commit e77aa336f116 ("ls-files: optionally recurse into submodules", 2016-10-07) ls-files has known how to recurse into submodules when displaying files. Unfortunately this fails for certain cases, including when nesting more than one submodule, called from within a submodule that itself has submodules, or when the GIT_DIR environemnt variable is set. Prior to commit b58a68c1c187 ("setup: allow for prefix to be passed to git commands", 2017-03-17) this resulted in an error indicating that --prefix and --super-prefix were incompatible. After this commit, instead, the process loops forever with a GIT_DIR set to the parent and continuously reads the parent submodule files and recursing forever. Fix this by preparing the environment properly for submodules when setting up the child process. This is similar to how other commands such as grep behave. This was not caught by the original tests because the scenario is avoided if the submodules are created separately and not stored as the standard method of putting the submodule git directory under .git/modules/<name>. We can update the test to show the failure by the addition of "git submodule absorbgitdirs" to the test case. However, note that this new test would run forever without the necessary fix in this patch. Signed-off-by: Jacob Keller <jacob.keller@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-16Merge branch 'js/difftool-builtin'Libravatar Junio C Hamano1-0/+19
Code cleanup. * js/difftool-builtin: difftool: fix use-after-free difftool: avoid strcpy
2017-04-16Merge branch 'sb/show-diff-for-submodule-in-diff-fix'Libravatar Junio C Hamano1-0/+29
"git diff --submodule=diff" learned to work better in a project with a submodule that in turn has its own submodules. * sb/show-diff-for-submodule-in-diff-fix: diff: submodule inline diff to initialize env array.
2017-04-16Merge branch 'jk/loose-object-info-report-error'Libravatar Junio C Hamano1-0/+24
Update error handling for codepath that deals with corrupt loose objects. * jk/loose-object-info-report-error: index-pack: detect local corruption in collision check sha1_loose_object_info: return error for corrupted objects
2017-04-13difftool: fix use-after-freeLibravatar Johannes Schindelin1-0/+19
The left and right base directories were pointed to the buf field of two strbufs, which were subject to change. A contrived test case shows the problem where a file with a long enough name to force the strbuf to grow is up-to-date (hence the code path is used where the work tree's version of the file is reused), and then a file that is not up-to-date needs to be written (hence the code path is used where checkout_entry() uses the previously recorded base_dir that is invalid by now). Let's just copy the base_dir strings for use with checkout_entry(), never touch them until the end, and release them then. This is an easily verifiable fix (as opposed to the next-obvious alternative: to re-set base_dir after every loop iteration). This fixes https://github.com/git-for-windows/git/issues/1124 Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-11Merge branch 'ah/log-decorate-default-to-auto'Libravatar Junio C Hamano1-1/+9
The default behaviour of "git log" in an interactive session has been changed to enable "--decorate". * ah/log-decorate-default-to-auto: log: if --decorate is not given, default to --decorate=auto
2017-04-11Merge branch 'ab/ref-filter-no-contains'Libravatar Junio C Hamano4-14/+316
"git tag/branch/for-each-ref" family of commands long allowed to filter the refs by "--contains X" (show only the refs that are descendants of X), "--merged X" (show only the refs that are ancestors of X), "--no-merged X" (show only the refs that are not ancestors of X). One curious omission, "--no-contains X" (show only the refs that are not descendants of X) has been added to them. * ab/ref-filter-no-contains: tag: add tests for --with and --without ref-filter: reflow recently changed branch/tag/for-each-ref docs ref-filter: add --no-contains option to tag/branch/for-each-ref tag: change --point-at to default to HEAD tag: implicitly supply --list given another list-like option tag: change misleading --list <pattern> documentation parse-options: add OPT_NONEG to the "contains" option tag: add more incompatibles mode tests for-each-ref: partly change <object> to <commit> in help tag tests: fix a typo in a test description tag: remove a TODO item from the test suite ref-filter: add test for --contains on a non-commit ref-filter: make combining --merged & --no-merged an error tag doc: reword --[no-]merged to talk about commits, not tips tag doc: split up the --[no-]merged documentation tag doc: move the description of --[no-]merged earlier
2017-04-02diff: submodule inline diff to initialize env array.Libravatar Stefan Beller1-0/+29
David reported: > When I try to run `git diff --submodule=diff` in a submodule which has > it's own submodules that have changes I get the error: fatal: bad > object. This happens, because we do not properly initialize the environment in which the diff is run in the submodule. That means we inherit the environment from the main process, which sets environment variables. (Apparently we do set environment variables which we do not set when not in a submodules, i.e. the .git directory is linked) This commit, just like fd47ae6a5b (diff: teach diff to display submodule difference with an inline diff, 2016-08-31) introduces bad test code (i.e. hard coded hash values), which will be cleanup up in a later patch. Reported-by: David Parrish <daveparrish@gmail.com> Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-01index-pack: detect local corruption in collision checkLibravatar Jeff King1-0/+17
When we notice that we have a local copy of an incoming object, we compare the two objects to make sure we haven't found a collision. Before we get to the actual object bytes, though, we compare the type and size from sha1_object_info(). If our local object is corrupted, then the type will be OBJ_BAD, which obviously will not match the incoming type, and we'll report "SHA1 COLLISION FOUND" (with capital letters and everything). This is confusing, as the problem is not a collision but rather local corruption. We should report that instead (just like we do if reading the rest of the object content fails a few lines later). Note that we _could_ just ignore the error and mark it as a non-collision. That would let you "git fetch" to replace a corrupted object. But it's not a very reliable method for repairing a repository. The earlier want/have negotiation tries to get the other side to omit objects we already have, and it would not realize that we are "missing" this corrupted object. So we're better off complaining loudly when we see corruption, and letting the user take more drastic measures to repair (like making a full clone elsewhere and copying the pack into place). Note that the test sets transfer.unpackLimit in the receiving repository so that we use index-pack (which is what does the collision check). Normally for such a small push we'd use unpack-objects, which would simply try to write the loose object, and discard the new one when we see that there's already an old one. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-01sha1_loose_object_info: return error for corrupted objectsLibravatar Jeff King1-0/+7
When sha1_loose_object_info() finds that a loose object file cannot be stat(2)ed or mmap(2)ed, it returns -1 to signal an error to the caller. However, if it found that the loose object file is corrupt and the object data cannot be used from it, it stuffs OBJ_BAD into "type" field of the object_info, but returns zero (i.e., success), which can confuse callers. This is due to 052fe5eac (sha1_loose_object_info: make type lookup optional, 2013-07-12), which switched the return to a strict success/error, rather than returning the type (but botched the return). Callers of regular sha1_object_info() don't notice the difference, as that function returns the type (which is OBJ_BAD in this case). However, direct callers of sha1_object_info_extended() see the function return success, but without setting any meaningful values in the object_info struct, leading them to access potentially uninitialized memory. The easiest way to see the bug is via "cat-file -s", which will happily ignore the corruption and report whatever value happened to be in the "size" variable. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-30Merge branch 'js/rebase-i-reword-to-run-hooks'Libravatar Junio C Hamano1-0/+17
A recent update to "rebase -i" stopped running hooks for the "git commit" command during "reword" action, which has been fixed. * js/rebase-i-reword-to-run-hooks: sequencer: allow the commit-msg hooks to run during a `reword` sequencer: make commit options more extensible t7504: document regression: reword no longer calls commit-msg
2017-03-30Merge branch 'ab/case-insensitive-upstream-and-push-marker'Libravatar Junio C Hamano2-6/+17
On many keyboards, typing "@{" involves holding down SHIFT key and one can easily end up with "@{Up..." when typing "@{upstream}". As the upstream/push keywords do not appear anywhere else in the syntax, we can safely accept them case insensitively without introducing ambiguity or confusion to solve this. * ab/case-insensitive-upstream-and-push-marker: rev-parse: match @{upstream}, @{u} and @{push} case-insensitively
2017-03-30Merge branch 'ab/test-readme-updates'Libravatar Junio C Hamano1-5/+7
Doc updates. * ab/test-readme-updates: t/README: clarify the test_have_prereq documentation t/README: change "Inside <X> part" to "Inside the <X> part" t/README: link to metacpan.org, not search.cpan.org
2017-03-30Merge branch 'rs/freebsd-getcwd-workaround'Libravatar Junio C Hamano1-0/+14
FreeBSD implementation of getcwd(3) behaved differently when an intermediate directory is unreadable/unsearchable depending on the length of the buffer provided, which our strbuf_getcwd() was not aware of. strbuf_getcwd() has been taught to cope with it better. * rs/freebsd-getcwd-workaround: strbuf: support long paths w/o read rights in strbuf_getcwd() on FreeBSD
2017-03-30Merge branch 'bw/recurse-submodules-relative-fix'Libravatar Junio C Hamano2-0/+114
A few commands that recently learned the "--recurse-submodule" option misbehaved when started from a subdirectory of the superproject. * bw/recurse-submodules-relative-fix: ls-files: fix bug when recursing with relative pathspec ls-files: fix typo in variable name grep: fix bug when recursing with relative pathspec setup: allow for prefix to be passed to git commands grep: fix help text typo
2017-03-30Merge branch 'sg/completion-refs-speedup'Libravatar Junio C Hamano1-0/+387
The refs completion for large number of refs has been sped up, partly by giving up disambiguating ambiguous refs and partly by eliminating most of the shell processing between 'git for-each-ref' and 'ls-remote' and Bash's completion facility. * sg/completion-refs-speedup: completion: speed up branch and tag completion completion: fill COMPREPLY directly when completing fetch refspecs completion: fill COMPREPLY directly when completing refs completion: let 'for-each-ref' sort remote branches for 'checkout' DWIMery completion: let 'for-each-ref' filter remote branches for 'checkout' DWIMery completion: let 'for-each-ref' strip the remote name from remote branches completion: let 'for-each-ref' and 'ls-remote' filter matching refs completion: don't disambiguate short refs completion: don't disambiguate tags and branches completion: support excluding full refs completion: support completing fully qualified non-fast-forward refspecs completion: support completing full refs after '--option=refs/<TAB>' completion: wrap __git_refs() for better option parsing completion: remove redundant __gitcomp_nl() options from _git_commit()
2017-03-30Merge branch 'bw/submodule-is-active'Libravatar Junio C Hamano2-0/+243
"what URL do we want to update this submodule?" and "are we interested in this submodule?" are split into two distinct concepts, and then the way used to express the latter got extended, paving a way to make it easier to manage a project with many submodules and make it possible to later extend use of multiple worktrees for a project with submodules. * bw/submodule-is-active: submodule add: respect submodule.active and submodule.<name>.active submodule--helper init: set submodule.<name>.active clone: teach --recurse-submodules to optionally take a pathspec submodule init: initialize active submodules submodule: decouple url and submodule interest submodule--helper clone: check for configured submodules using helper submodule sync: use submodule--helper is-active submodule sync: skip work for inactive submodules submodule status: use submodule--helper is-active submodule--helper: add is-active subcommand
2017-03-28Merge branch 'jh/memihash-opt'Libravatar Junio C Hamano3-0/+284
The name-hash used for detecting paths that are different only in cases (which matter on case insensitive filesystems) has been optimized to take advantage of multi-threading when it makes sense. * jh/memihash-opt: name-hash: add test-lazy-init-name-hash to .gitignore name-hash: add perf test for lazy_init_name_hash name-hash: add test-lazy-init-name-hash name-hash: perf improvement for lazy_init_name_hash hashmap: document memihash_cont, hashmap_disallow_rehash api hashmap: add disallow_rehash setting hashmap: allow memihash computation to be continued name-hash: specify initial size for istate.dir_hash table
2017-03-28Merge branch 'tg/stash-push-fixup'Libravatar Junio C Hamano2-1/+23
Recent enhancement to "git stash push" command to support pathspec to allow only a subset of working tree changes to be stashed away was found to be too chatty and exposed the internal implementation detail (e.g. when it uses reset to match the index to HEAD before doing other things, output from reset seeped out). These, and other chattyness has been fixed. * tg/stash-push-fixup: stash: keep untracked files intact in stash -k stash: pass the pathspec argument to git reset stash: don't show internal implementation details
2017-03-28Merge branch 'sb/checkout-recurse-submodules'Libravatar Junio C Hamano3-24/+586
"git checkout" is taught the "--recurse-submodules" option. * sb/checkout-recurse-submodules: builtin/read-tree: add --recurse-submodules switch builtin/checkout: add --recurse-submodules switch entry.c: create submodules when interesting unpack-trees: check if we can perform the operation for submodules unpack-trees: pass old oid to verify_clean_submodule update submodules: add submodule_move_head submodule.c: get_super_prefix_or_empty update submodules: move up prepare_submodule_repo_env submodules: introduce check to see whether to touch a submodule update submodules: add a config option to determine if submodules are updated update submodules: add submodule config parsing make is_submodule_populated gently lib-submodule-update.sh: define tests for recursing into submodules lib-submodule-update.sh: replace sha1 by hash lib-submodule-update: teach test_submodule_content the -C <dir> flag lib-submodule-update.sh: do not use ./. as submodule remote lib-submodule-update.sh: reorder create_lib_submodule_repo submodule--helper.c: remove duplicate code connect_work_tree_and_git_dir: safely create leading directories
2017-03-28Merge branch 'sb/t3600-rephrase' into maintLibravatar Junio C Hamano1-1/+1
A test retitling. * sb/t3600-rephrase: t3600: rename test to describe its functionality
2017-03-28Merge branch 'sb/submodule-update-initial-runs-custom-script' into maintLibravatar Junio C Hamano1-3/+3
A test fix. * sb/submodule-update-initial-runs-custom-script: t7406: correct test case for submodule-update initial population
2017-03-28Merge branch 'jk/quote-env-path-list-component' into maintLibravatar Junio C Hamano1-0/+1
A test fix. * jk/quote-env-path-list-component: t5615: fix a here-doc syntax error
2017-03-28Merge branch 'st/verify-tag' into maintLibravatar Junio C Hamano2-14/+10
A few unterminated here documents in tests were fixed, which in turn revealed incorrect expectations the tests make. These tests have been updated. * st/verify-tag: t7004, t7030: fix here-doc syntax errors
2017-03-28Merge branch 'js/regexec-buf' into maintLibravatar Junio C Hamano1-0/+5
Fix for potential segv introduced in v2.11.0 and later (also v2.10.2). * js/regexec-buf: pickaxe: fix segfault with '-S<...> --pickaxe-regex'
2017-03-28Merge branch 'dp/filter-branch-prune-empty' into maintLibravatar Junio C Hamano2-0/+42
"git filter-branch --prune-empty" drops a single-parent commit that becomes a no-op, but did not drop a root commit whose tree is empty. * dp/filter-branch-prune-empty: p7000: add test for filter-branch with --prune-empty filter-branch: fix --prune-empty on parentless commits t7003: ensure --prune-empty removes entire branch when applicable t7003: ensure --prune-empty can prune root commit
2017-03-28Merge branch 'mm/fetch-show-error-message-on-unadvertised-object' into maintLibravatar Junio C Hamano2-4/+5
"git fetch" that requests a commit by object name, when the other side does not allow such an request, failed without much explanation. * mm/fetch-show-error-message-on-unadvertised-object: fetch-pack: add specific error for fetching an unadvertised object fetch_refs_via_pack: call report_unmatched_refs fetch-pack: move code to report unmatched refs to a function
2017-03-28Merge branch 'jk/interpret-branch-name' into maintLibravatar Junio C Hamano2-0/+141
"git branch @" created refs/heads/@ as a branch, and in general the code that handled @{-1} and @{upstream} was a bit too loose in disambiguating. * jk/interpret-branch-name: checkout: restrict @-expansions when finding branch strbuf_check_ref_format(): expand only local branches branch: restrict @-expansions when deleting t3204: test git-branch @-expansion corner cases interpret_branch_name: allow callers to restrict expansions strbuf_branchname: add docstring strbuf_branchname: drop return value interpret_branch_name: move docstring to header file interpret_branch_name(): handle auto-namelen for @{-1}
2017-03-28Merge branch 'ab/cond-skip-tests' into maintLibravatar Junio C Hamano3-1/+16
A few tests were run conditionally under (rare) conditions where they cannot be run (like running cvs tests under 'root' account). * ab/cond-skip-tests: gitweb tests: skip tests when we don't have Time::HiRes gitweb tests: change confusing "skip_all" phrasing cvs tests: skip tests that call "cvs commit" when running as root
2017-03-28Merge branch 'jk/ident-empty' into maintLibravatar Junio C Hamano1-0/+36
user.email that consists of only cruft chars should consistently error out, but didn't. * jk/ident-empty: ident: do not ignore empty config name/email ident: reject all-crud ident name ident: handle NULL email when complaining of empty name ident: mark error messages for translation
2017-03-28Merge branch 'jk/delta-chain-limit' into maintLibravatar Junio C Hamano1-0/+93
"git repack --depth=<n>" for a long time busted the specified depth when reusing delta from existing packs. This has been corrected. * jk/delta-chain-limit: pack-objects: convert recursion to iteration in break_delta_chain() pack-objects: enforce --depth limit in reused deltas
2017-03-28Merge branch 'sg/test-with-stdin' into maintLibravatar Junio C Hamano2-8/+4
Teach the "debug" helper used in the test framework that allows a command to run under "gdb" to make the session interactive. * sg/test-with-stdin: tests: make the 'test_pause' helper work in non-verbose mode tests: create an interactive gdb session with the 'debug' helper
2017-03-28Merge branch 'jk/interop-test' into maintLibravatar Junio C Hamano7-1/+267
Picking two versions of Git and running tests to make sure the older one and the newer one interoperate happily has now become possible. * jk/interop-test: t/interop: add test of old clients against modern git-daemon t: add an interoperability test harness
2017-03-28Merge branch 'jt/perf-updates' into maintLibravatar Junio C Hamano3-3/+7
The t/perf performance test suite was not prepared to test not so old versions of Git, but now it covers versions of Git that are not so ancient. * jt/perf-updates: t/perf: add fallback for pre-bin-wrappers versions of git t/perf: use $MODERN_GIT for all repo-copying steps t/perf: export variable used in other blocks
2017-03-27sequencer: allow the commit-msg hooks to run during a `reword`Libravatar Johannes Schindelin1-1/+1
The `reword` command used to call `git commit` in a manner that asks for the prepare-commit-msg and commit-msg hooks to do their thing. Converting that part of the interactive rebase to C code introduced the regression where those hooks were no longer run. Let's fix this. Note: the flag is called `VERIFY_MSG` instead of the more intuitive `RUN_COMMIT_MSG_HOOKS` to indicate that the flag suppresses the `--no-verify` flag (which may do other things in the future in addition to suppressing the commit message hooks, too). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-27Merge branch 'sb/t3600-rephrase'Libravatar Junio C Hamano1-1/+1
A test retitling. * sb/t3600-rephrase: t3600: rename test to describe its functionality
2017-03-27Merge branch 'sb/describe-broken'Libravatar Junio C Hamano1-0/+20
"git describe --dirty" dies when it cannot be determined if the state in the working tree matches that of HEAD (e.g. broken repository or broken submodule). The command learned a new option "git describe --broken" to give "$name-broken" (where $name is the description of HEAD) in such a case. * sb/describe-broken: builtin/describe: introduce --broken flag
2017-03-27Merge branch 'sb/push-options-via-transport'Libravatar Junio C Hamano1-2/+31
Recently we started passing the "--push-options" through the external remote helper interface; now the "smart HTTP" remote helper understands what to do with the passed information. * sb/push-options-via-transport: remote-curl: allow push options send-pack: send push options correctly in stateless-rpc case
2017-03-27Merge branch 'km/t1400-modernization'Libravatar Junio C Hamano1-76/+78
Code clean-up. * km/t1400-modernization: t1400: use test_when_finished for cleanup t1400: remove a set of unused output files t1400: use test_path_is_* helpers t1400: set core.logAllRefUpdates in "logged by touch" tests t1400: rename test descriptions to be unique
2017-03-27Merge branch 'jk/prefix-filename'Libravatar Junio C Hamano1-0/+10
Code clean-up with minor bugfixes. * jk/prefix-filename: bundle: use prefix_filename with bundle path prefix_filename: simplify windows #ifdef prefix_filename: return newly allocated string prefix_filename: drop length parameter prefix_filename: move docstring to header file hash-object: fix buffer reuse with --path in a subdirectory
2017-03-27Merge branch 'jc/lint-runaway-here-doc'Libravatar Junio C Hamano1-3/+3
The test framework learned to detect unterminated here documents. * jc/lint-runaway-here-doc: tests: lint for run-away here-doc
2017-03-27Merge branch 'st/verify-tag'Libravatar Junio C Hamano2-14/+10
A few unterminated here documents in tests were fixed, which in turn revealed incorrect expectations the tests make. These tests have been updated. * st/verify-tag: t7004, t7030: fix here-doc syntax errors
2017-03-27Merge branch 'sb/submodule-update-initial-runs-custom-script'Libravatar Junio C Hamano1-3/+3
A test fix. * sb/submodule-update-initial-runs-custom-script: t7406: correct test case for submodule-update initial population
2017-03-27Merge branch 'jk/quote-env-path-list-component'Libravatar Junio C Hamano1-0/+1
A test fix. * jk/quote-env-path-list-component: t5615: fix a here-doc syntax error
2017-03-27rev-parse: match @{upstream}, @{u} and @{push} case-insensitivelyLibravatar Ævar Arnfjörð Bjarmason2-6/+17
Change the revision parsing logic to match @{upstream}, @{u} & @{push} case-insensitively. Before this change supplying anything except the lower-case forms emits an "unknown revision or path not in the working tree" error. This change makes upper-case & mixed-case versions equivalent to the lower-case versions. The use-case for this is being able to hold the shift key down while typing @{u} on certain keyboard layouts, which makes the sequence easier to type, and reduces cases where git throws an error at the user where it could do what he means instead. These suffixes now join various other suffixes & special syntax documented in gitrevisions(7) that matches case-insensitively. A table showing the status of the various forms documented there before & after this patch is shown below. The key for the table is: - CI = Case Insensitive - CIP = Case Insensitive Possible (without ambiguities) - AG = Accepts Garbage (.e.g. @{./.4.minutes./.}) Before this change: |----------------+-----+------+-----| | What? | CI? | CIP? | AG? | |----------------+-----+------+-----| | @{<date>} | Y | Y | Y | | @{upstream} | N | Y | N | | @{push} | N | Y | N | |----------------+-----+------+-----| After it: |----------------+-----+------+-----| | What? | CI? | CIP? | AG? | |----------------+-----+------+-----| | @{<date>} | Y | Y | Y | | @{upstream} | Y | Y | N | | @{push} | Y | Y | N | |----------------+-----+------+-----| The ^{<type>} suffix is not made case-insensitive, because other places that take <type> like "cat-file -t <type>" do want them case sensitively (after all we never declared that type names are case insensitive). Allowing case-insensitive typename only with this syntax will make the resulting Git as a whole inconsistent. This change was independently authored to scratch a longtime itch, but when I was about to submit it I discovered that a similar patch had been submitted unsuccessfully before by Conrad Irwin in August 2011 as "rev-parse: Allow @{U} as a synonym for @{u}" (<1313287071-7851-1-git-send-email-conrad.irwin@gmail.com>). The tests for this patch are more exhaustive than in the 2011 submission. The starting point for them was to first change the code to only support upper-case versions of the existing words, seeing what broke, and amending the breaking tests to check upper case & mixed case as appropriate, and where not redundant to other similar tests. The implementation itself is equivalent. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-26strbuf: support long paths w/o read rights in strbuf_getcwd() on FreeBSDLibravatar René Scharfe1-0/+14
FreeBSD implements getcwd(3) as a syscall, but falls back to a version based on readdir(3) if it fails for some reason. The latter requires permissions to read and execute path components, while the former does not. That means that if our buffer is too small and we're missing rights we could get EACCES, but we may succeed with a bigger buffer. Keep retrying if getcwd(3) indicates lack of permissions until our buffer can fit PATH_MAX bytes, as that's the maximum supported by the syscall on FreeBSD anyway. This way we do what we can to be able to benefit from the syscall, but we also won't loop forever if there is a real permission issue. This fixes a regression introduced with 7333ed17 (setup: convert setup_git_directory_gently_1 et al. to strbuf, 2014-07-28) for paths longer than 127 bytes with components that miss read or execute permissions (e.g. 0711 on /home for privacy reasons); we used a fixed PATH_MAX-sized buffer before. Reported-by: Zenobiusz Kunegunda <zenobiusz.kunegunda@interia.pl> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-26t/README: clarify the test_have_prereq documentationLibravatar Ævar Arnfjörð Bjarmason1-3/+5
Clarify the test_have_prereq documentation so that it's clear in the reader's mind when the text says "most common use of this directly" what the answer to "as opposed to what?" is. Usually this function isn't used in lieu of using the prerequisite support built into test_expect_*, mention that explicitly. This changes documentation that I added in commit 9a897893a7 ("t/README: Document the prereq functions, and 3-arg test_*", 2010-07-02). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-24Merge branch 'jk/sha1dc'Libravatar Junio C Hamano2-0/+19
The "detect attempt to create collisions" variant of SHA-1 implementation by Marc Stevens (CWI) and Dan Shumow (Microsoft) has been integrated and made the default. * jk/sha1dc: Makefile: make DC_SHA1 the default t0013: add a basic sha1 collision detection test Makefile: add DC_SHA1 knob sha1dc: disable safe_hash feature sha1dc: adjust header includes for git sha1dc: add collision-detecting sha1 implementation
2017-03-24Merge branch 'sg/test-with-stdin'Libravatar Junio C Hamano2-8/+4
Teach the "debug" helper used in the test framework that allows a command to run under "gdb" to make the session interactive. * sg/test-with-stdin: tests: make the 'test_pause' helper work in non-verbose mode tests: create an interactive gdb session with the 'debug' helper
2017-03-24Merge branch 'js/regexec-buf'Libravatar Junio C Hamano1-0/+5
Fix for potential segv introduced in v2.11.0 and later (also v2.10.2). * js/regexec-buf: pickaxe: fix segfault with '-S<...> --pickaxe-regex'