diff options
Diffstat (limited to 'Documentation/RelNotes')
| -rw-r--r-- | Documentation/RelNotes/2.22.0.txt | 496 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.22.1.txt | 147 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.23.0.txt | 348 |
3 files changed, 991 insertions, 0 deletions
diff --git a/Documentation/RelNotes/2.22.0.txt b/Documentation/RelNotes/2.22.0.txt index 16d3110392..91e6ae9887 100644 --- a/Documentation/RelNotes/2.22.0.txt +++ b/Documentation/RelNotes/2.22.0.txt @@ -4,6 +4,13 @@ Git 2.22 Release Notes Updates since v2.21 ------------------- +Backward compatibility note + + * The filter specification "--filter=sparse:path=<path>" used to + create a lazy/partial clone has been removed. Using a blob that is + part of the project as sparse specification is still supported with + the "--filter=sparse:oid=<blob>" option. + UI, Workflows & Features * "git checkout --no-overlay" can be used to trigger a new mode of @@ -31,6 +38,86 @@ UI, Workflows & Features * The command line completion (in contrib/) has been taught to complete more subcommand parameters. + * The final report from "git bisect" used to show the suspected + culprit using a raw "diff-tree", with which there is no output for + a merge commit. This has been updated to use a more modern and + human readable output that still is concise enough. + + * "git rebase --rebase-merges" replaces its old "--preserve-merges" + option; the latter is now marked as deprecated. + + * Error message given while cloning with --recurse-submodules has + been updated. + + * The completion helper code now pays attention to repository-local + configuration (when available), which allows --list-cmds to honour + a repository specific setting of completion.commands, for example. + + * "git mergetool" learned to offer Sublime Merge (smerge) as one of + its backends. + + * A new hook "post-index-change" is called when the on-disk index + file changes, which can help e.g. a virtualized working tree + implementation. + + * "git difftool" can now run outside a repository. + + * "git checkout -m <other>" was about carrying the differences + between HEAD and the working-tree files forward while checking out + another branch, and ignored the differences between HEAD and the + index. The command has been taught to abort when the index and the + HEAD are different. + + * A progress indicator has been added to the "index-pack" step, which + often makes users wait for completion during "git clone". + + * "git submodule" learns "set-branch" subcommand that allows the + submodule.*.branch settings to be modified. + + * "git merge-recursive" backend recently learned a new heuristics to + infer file movement based on how other files in the same directory + moved. As this is inherently less robust heuristics than the one + based on the content similarity of the file itself (rather than + based on what its neighbours are doing), it sometimes gives an + outcome unexpected by the end users. This has been toned down to + leave the renamed paths in higher/conflicted stages in the index so + that the user can examine and confirm the result. + + * "git tag" learned to give an advice suggesting it might be a + mistake when creating an annotated or signed tag that points at + another tag. + + * The "git pack-objects" command learned to report the number of + objects it packed via the trace2 mechanism. + + * The list of conflicted paths shown in the editor while concluding a + conflicted merge was shown above the scissors line when the + clean-up mode is set to "scissors", even though it was commented + out just like the list of updated paths and other information to + help the user explain the merge better. + + * The trace2 tracing facility learned to auto-generate a filename + when told to log to a directory. + + * "git clone" learned a new --server-option option when talking over + the protocol version 2. + + * The connectivity bitmaps are created by default in bare + repositories now; also the pathname hash-cache is created by + default to avoid making crappy deltas when repacking. + + * "git branch new A...B" and "git checkout -b new A...B" have been + taught that in their contexts, the notation A...B means "the merge + base between these two commits", just like "git checkout A...B" + detaches HEAD at that commit. + + * Update "git difftool" and "git mergetool" so that the combinations + of {diff,merge}.{tool,guitool} configuration variables serve as + fallback settings of each other in a sensible order. + + * The "--dir-diff" mode of "git difftool" is not useful in "--no-index" + mode; they are now explicitly marked as mutually incompatible. + Performance, Internal Implementation, Development Support etc. @@ -47,6 +134,90 @@ Performance, Internal Implementation, Development Support etc. * "git prune" has been taught to take advantage of reachability bitmap when able. + * The command line parser of "git commit-tree" has been rewritten to + use the parse-options API. + + * Suggest GitGitGadget instead of submitGit as a way to submit + patches based on GitHub PR to us. + + * The test framework has been updated to help developers by making it + easier to run most of the tests under different versions of + over-the-wire protocols. + + * Dev support update to make it easier to compare two formatted + results from our documentation. + + * The scripted "git rebase" implementation has been retired. + + * "git multi-pack-index verify" did not scale well with the number of + packfiles, which is being improved. + + * "git stash" has been rewritten in C. + + * The "check-docs" Makefile target to support developers has been + updated. + + * The tests have been updated not to rely on the abbreviated option + names the parse-options API offers, to protect us from an + abbreviated form of an option that used to be unique within the + command getting non-unique when a new option that share the same + prefix is added. + + * The scripted version of "git rebase -i" wrote and rewrote the todo + list many times during a single step of its operation, and the + recent C-rewrite made a faithful conversion of the logic to C. The + implementation has been updated to carry necessary information + around in-core to avoid rewriting the same file over and over + unnecessarily. + + * Test framework update to more robustly clean up leftover files and + processes after tests are done. + + * Conversion from unsigned char[20] to struct object_id continues. + + * While running "git diff" in a lazy clone, we can upfront know which + missing blobs we will need, instead of waiting for the on-demand + machinery to discover them one by one. The code learned to aim to + achieve better performance by batching the request for these + promised blobs. + + * During an initial "git clone --depth=..." partial clone, it is + pointless to spend cycles for a large portion of the connectivity + check that enumerates and skips promisor objects (which by + definition is all objects fetched from the other side). This has + been optimized out. + + * Mechanically and systematically drop "extern" from function + declaration. + + * The script to aggregate perf result unconditionally depended on + libjson-perl even though it did not have to, which has been + corrected. + + * The internal implementation of "git rebase -i" has been updated to + avoid forking a separate "rebase--interactive" process. + + * Allow DEP and ASLR for Windows build to for security hardening. + + * Performance test framework has been broken and measured the version + of Git that happens to be on $PATH, not the specified one to + measure, for a while, which has been corrected. + + * Optionally "make coccicheck" can feed multiple source files to + spatch, gaining performance while spending more memory. + + * Attempt to use an abbreviated option in "git clone --recurs" is + responded by a request to disambiguate between --recursive and + --recurse-submodules, which is bad because these two are synonyms. + The parse-options API has been extended to define such synonyms + more easily and not produce an unnecessary failure. + + * A pair of private functions in http.c that had names similar to + fread/fwrite did not return the number of elements, which was found + to be confusing. + + * Update collision-detecting SHA-1 code to build properly on HP-UX. + Fixes since v2.21 ----------------- @@ -85,6 +256,299 @@ Fixes since v2.21 ETAGS on. (merge 92b88eba9f js/find-lib-h-with-ls-files-when-possible later to maint). + * "git rebase" that was reimplemented in C did not set ORIG_HEAD + correctly, which has been corrected. + (merge cbd29ead92 js/rebase-orig-head-fix later to maint). + + * Dev support. + (merge f545737144 js/stress-test-ui-tweak later to maint). + + * CFLAGS now can be tweaked when invoking Make while using + DEVELOPER=YesPlease; this did not work well before. + (merge 6d5d4b4e93 ab/makefile-help-devs-more later to maint). + + * "git fsck --connectivity-only" omits computation necessary to sift + the objects that are not reachable from any of the refs into + unreachable and dangling. This is now enabled when dangling + objects are requested (which is done by default, but can be + overridden with the "--no-dangling" option). + (merge 8d8c2a5aef jk/fsck-doc later to maint). + + * On platforms where "git fetch" is killed with SIGPIPE (e.g. OSX), + the upload-pack that runs on the other end that hangs up after + detecting an error could cause "git fetch" to die with a signal, + which led to a flaky test. "git fetch" now ignores SIGPIPE during + the network portion of its operation (this is not a problem as we + check the return status from our write(2)s). + (merge 143588949c jk/no-sigpipe-during-network-transport later to maint). + + * A recent update broke "is this object available to us?" check for + well-known objects like an empty tree (which should yield "yes", + even when there is no on-disk object for an empty tree), which has + been corrected. + (merge f06ab027ef jk/virtual-objects-do-exist later to maint). + + * The setup code has been cleaned up to avoid leaks around the + repository_format structure. + (merge e8805af1c3 ma/clear-repository-format later to maint). + + * "git config --type=color ..." is meant to replace "git config --get-color" + but there is a slight difference that wasn't documented, which is + now fixed. + (merge cd8e7593b9 jk/config-type-color-ends-with-lf later to maint). + + * When the "clean" filter can reduce the size of a huge file in the + working tree down to a small "token" (a la Git LFS), there is no + point in allocating a huge scratch area upfront, but the buffer is + sized based on the original file size. The convert mechanism now + allocates very minimum and reallocates as it receives the output + from the clean filter process. + (merge 02156ab031 jh/resize-convert-scratch-buffer later to maint). + + * "git rebase" uses the refs/rewritten/ hierarchy to store its + intermediate states, which inherently makes the hierarchy per + worktree, but it didn't quite work well. + (merge b9317d55a3 nd/rewritten-ref-is-per-worktree later to maint). + + * "git log -L<from>,<to>:<path>" with "-s" did not suppress the patch + output as it should. This has been corrected. + (merge 05314efaea jk/line-log-with-patch later to maint). + + * "git worktree add" used to do a "find an available name with stat + and then mkdir", which is race-prone. This has been fixed by using + mkdir and reacting to EEXIST in a loop. + (merge 7af01f2367 ms/worktree-add-atomic-mkdir later to maint). + + * Build update for SHA-1 with collision detection. + (merge 07a20f569b jk/sha1dc later to maint). + + * Build procedure has been fixed around use of asciidoctor instead of + asciidoc. + (merge 185f9a0ea0 ma/asciidoctor-fixes later to maint). + + * remote-http transport did not anonymize URLs reported in its error + messages at places. + (merge c1284b21f2 js/anonymize-remote-curl-diag later to maint). + + * Error messages given from the http transport have been updated so + that they can be localized. + (merge ed8b4132c8 js/remote-curl-i18n later to maint). + + * "git init" forgot to read platform-specific repository + configuration, which made Windows port to ignore settings of + core.hidedotfiles, for example. + + * A corner-case object name ambiguity while the sequencer machinery + is working (e.g. "rebase -i -x") has been fixed. + + * "git format-patch" did not diagnose an error while opening the + output file for the cover-letter, which has been corrected. + (merge 2fe95f494c jc/format-patch-error-check later to maint). + + * "git checkout -f <branch>" while the index has an unmerged path + incorrectly left some paths in an unmerged state, which has been + corrected. + + * A corner case bug in the refs API has been corrected. + (merge d3322eb28b jk/refs-double-abort later to maint). + + * Unicode update. + (merge 584b62c37b bb/unicode-12 later to maint). + + * dumb-http walker has been updated to share more error recovery + strategy with the normal codepath. + + * A buglet in configuration parser has been fixed. + (merge 19e7fdaa58 nd/include-if-wildmatch later to maint). + + * The documentation for "git read-tree --reset -u" has been updated. + (merge b5a0bd694c nd/read-tree-reset-doc later to maint). + + * Code clean-up around a much-less-important-than-it-used-to-be + update_server_info() function. + (merge b3223761c8 jk/server-info-rabbit-hole later to maint). + + * The message given when "git commit -a <paths>" errors out has been + updated. + (merge 5a1dbd48bc nd/commit-a-with-paths-msg-update later to maint). + + * "git cherry-pick --options A..B", after giving control back to the + user to ask help resolving a conflicted step, did not honor the + options it originally received, which has been corrected. + + * Various glitches in "git gc" around reflog handling have been fixed. + + * The code to read from commit-graph file has been cleanup with more + careful error checking before using data read from it. + + * Performance fix around "git fetch" that grabs many refs. + (merge b764300912 jt/fetch-pack-wanted-refs-optim later to maint). + + * Protocol v2 support in "git fetch-pack" of shallow clones has been + corrected. + + * Performance fix around "git blame", especially in a linear history + (which is the norm we should optimize for). + (merge f892014943 dk/blame-keep-origin-blob later to maint). + + * Performance fix for "rev-list --parents -- pathspec". + (merge 8320b1dbe7 jk/revision-rewritten-parents-in-prio-queue later to maint). + + * Updating the display with progress message has been cleaned up to + deal better with overlong messages. + (merge 545dc345eb sg/overlong-progress-fix later to maint). + + * "git blame -- path" in a non-bare repository starts blaming from + the working tree, and the same command in a bare repository errors + out because there is no working tree by definition. The command + has been taught to instead start blaming from the commit at HEAD, + which is more useful. + (merge a544fb08f8 sg/blame-in-bare-start-at-head later to maint). + + * An underallocation in the code to read the untracked cache + extension has been corrected. + (merge 3a7b45a623 js/untracked-cache-allocfix later to maint). + + * The code is updated to check the result of memory allocation before + it is used in more places, by using xmalloc and/or xcalloc calls. + (merge 999b951b28 jk/xmalloc later to maint). + + * The GETTEXT_POISON test option has been quite broken ever since it + was made runtime-tunable, which has been fixed. + (merge f88b9cb603 jc/gettext-test-fix later to maint). + + * Test fix on APFS that is incapable of store paths in Latin-1. + (merge 3889149619 js/iso8895-test-on-apfs later to maint). + + * "git submodule foreach <command> --quiet" did not pass the option + down correctly, which has been corrected. + (merge a282f5a906 nd/submodule-foreach-quiet later to maint). + + * "git send-email" has been taught to use quoted-printable when the + payload contains carriage-return. The use of the mechanism is in + line with the design originally added the codepath that chooses QP + when the payload has overly long lines. + (merge 74d76a1701 bc/send-email-qp-cr later to maint). + + * The recently added feature to add addresses that are on + anything-by: trailers in 'git send-email' was found to be way too + eager and considered nonsense strings as if they can be legitimate + beginning of *-by: trailer. This has been tightened. + + * Builds with gettext broke on recent macOS w/ Homebrew, which + seems to have stopped including from /usr/local/include; this + has been corrected. + (merge 92a1377a2a js/macos-gettext-build later to maint). + + * Running "git add" on a repository created inside the current + repository is an explicit indication that the user wants to add it + as a submodule, but when the HEAD of the inner repository is on an + unborn branch, it cannot be added as a submodule. Worse, the files + in its working tree can be added as if they are a part of the outer + repository, which is not what the user wants. These problems are + being addressed. + (merge f937bc2f86 km/empty-repo-is-still-a-repo later to maint). + + * "git cherry-pick" run with the "-x" or the "--signoff" option used + to (and more importantly, ought to) clean up the commit log message + with the --cleanup=space option by default, but this has been + broken since late 2017. This has been fixed. + + * When given a tag that points at a commit-ish, "git replace --graft" + failed to peel the tag before writing a replace ref, which did not + make sense because the old graft mechanism the feature wants to + mimic only allowed to replace one commit object with another. + This has been fixed. + (merge ee521ec4cb cc/replace-graft-peel-tags later to maint). + + * Code tightening against a "wrong" object appearing where an object + of a different type is expected, instead of blindly assuming that + the connection between objects are correctly made. + (merge 97dd512af7 tb/unexpected later to maint). + + * An earlier update for MinGW and Cygwin accidentally broke MSVC build, + which has been fixed. + (merge 22c3634c0f ss/msvc-path-utils-fix later to maint). + + * %(push:track) token used in the --format option to "git + for-each-ref" and friends was not showing the right branch, which + has been fixed. + (merge c646d0934e dr/ref-filter-push-track-fix later to maint). + + * "make check-docs", "git help -a", etc. did not account for cases + where a particular build may deliberately omit some subcommands, + which has been corrected. + + * The logic to tell if a Git repository has a working tree protects + "git branch -D" from removing the branch that is currently checked + out by mistake. The implementation of this logic was broken for + repositories with unusual name, which unfortunately is the norm for + submodules these days. This has been fixed. + (merge f3534c98e4 jt/submodule-repo-is-with-worktree later to maint). + + * AIX shared the same build issues with other BSDs around fileno(fp), + which has been corrected. + (merge ee662bf5c6 cc/aix-has-fileno-as-a-macro later to maint). + + * The autoconf generated configure script failed to use the right + gettext() implementations from -libintl by ignoring useless stub + implementations shipped in some C library, which has been + corrected. + (merge b71e56a683 vk/autoconf-gettext later to maint). + + * Fix index-pack perf test so that the repeated invocations always + run in an empty repository, which emulates the initial clone + situation better. + (merge 775c71e16d jk/p5302-avoid-collision-check-cost later to maint). + + * A "ls-files" that emulates "find" to enumerate files in the working + tree resulted in duplicated Makefile rules that caused the build to + issue an unnecessary warning during a trial build after merge + conflicts are resolved in working tree *.h files but before the + resolved results are added to the index. This has been corrected. + + * "git cherry-pick" (and "revert" that shares the same runtime engine) + that deals with multiple commits got confused when the final step + gets stopped with a conflict and the user concluded the sequence + with "git commit". Attempt to fix it by cleaning up the state + files used by these commands in such a situation. + (merge 4a72486de9 pw/clean-sequencer-state-upon-final-commit later to maint). + + * On a filesystem like HFS+, the names of the refs stored as filesystem + entities may become different from what the end-user expects, just + like files in the working tree get "renamed". Work around the + mismatch by paying attention to the core.precomposeUnicode + configuration. + (merge 8e712ef6fc en/unicode-in-refnames later to maint). + + * The code to generate the multi-pack idx file was not prepared to + see too many packfiles and ran out of open file descriptor, which + has been corrected. + + * To run tests for Git SVN, our scripts for CI used to install the + git-svn package (in the hope that it would bring in the right + dependencies). This has been updated to install the more direct + dependency, namely, libsvn-perl. + (merge db864306cf sg/ci-libsvn-perl later to maint). + + * "git cvsexportcommit" running on msys did not expect cvsnt showed + "cvs status" output with CRLF line endings. + + * The fsmonitor interface got out of sync after the in-core index + file gets discarded, which has been corrected. + (merge 398a3b0899 js/fsmonitor-refresh-after-discarding-index later to maint). + + * "git status" did not know that the "label" instruction in the + todo-list "rebase -i -r" uses should not be shown as a hex object + name. + + * A prerequisite check in the test suite to see if a working jgit is + available was made more robust. + (merge abd0f28983 tz/test-lib-check-working-jgit later to maint). + + * The codepath to parse :<path> that obtains the object name for an + indexed object has been made more robust. + * Code cleanup, docfix, build fix, etc. (merge 11f470aee7 jc/test-yes-doc later to maint). (merge 90503a240b js/doc-symref-in-proto-v1 later to maint). @@ -99,3 +563,35 @@ Fixes since v2.21 (merge 716a5af812 rd/gc-prune-doc-fix later to maint). (merge 50b206371d js/untravis-windows later to maint). (merge dbf47215e3 js/rebase-recreate-merge later to maint). + (merge 56cb2d30f8 dl/reset-doc-no-wrt-abbrev later to maint). + (merge 64eca306a2 ja/dir-rename-doc-markup-fix later to maint). + (merge af91b0230c dl/ignore-docs later to maint). + (merge 59a06e947b ra/t3600-test-path-funcs later to maint). + (merge e041d0781b ar/t4150-remove-cruft later to maint). + (merge 8d75a1d183 ma/asciidoctor-fixes-more later to maint). + (merge 74cc547b0f mh/pack-protocol-doc-fix later to maint). + (merge ed31851fa6 ab/doc-misc-typofixes later to maint). + (merge a7256debd4 nd/checkout-m-doc-update later to maint). + (merge 3a9e1ad78d jt/t5551-protocol-v2-does-not-have-half-auth later to maint). + (merge 0b918b75af sg/t5318-cleanup later to maint). + (merge 68ed71b53c cb/doco-mono later to maint). + (merge a34dca2451 nd/interpret-trailers-docfix later to maint). + (merge cf7b857a77 en/fast-import-parsing-fix later to maint). + (merge fe61ccbc35 po/rerere-doc-fmt later to maint). + (merge ffea0248bf po/describe-not-necessarily-7 later to maint). + (merge 7cb7283adb tg/ls-files-debug-format-fix later to maint). + (merge f64a21bd82 tz/doc-apostrophe-no-longer-needed later to maint). + (merge dbe7b41019 js/t3301-unbreak-notes-test later to maint). + (merge d8083e4180 km/t3000-retitle later to maint). + (merge 9e4cbccbd7 tz/git-svn-doc-markup-fix later to maint). + (merge da9ca955a7 jk/ls-files-doc-markup-fix later to maint). + (merge 6804ba3a58 cw/diff-highlight later to maint). + (merge 1a8787144d nd/submodule-helper-incomplete-line-fix later to maint). + (merge d9ef573837 jk/apache-lsan later to maint). + (merge c871fbee2b js/t6500-use-windows-pid-on-mingw later to maint). + (merge ce4c7bfc90 bl/t4253-exit-code-from-format-patch later to maint). + (merge 397a46db78 js/t5580-unc-alternate-test later to maint). + (merge d4907720a2 cm/notes-comment-fix later to maint). + (merge 9dde06de13 cb/http-push-null-in-message-fix later to maint). + (merge 4c785c0edc js/rebase-config-bitfix later to maint). + (merge 8e9fe16c87 es/doc-gitsubmodules-markup later to maint). diff --git a/Documentation/RelNotes/2.22.1.txt b/Documentation/RelNotes/2.22.1.txt new file mode 100644 index 0000000000..76dd8fb578 --- /dev/null +++ b/Documentation/RelNotes/2.22.1.txt @@ -0,0 +1,147 @@ +Git 2.22.1 Release Notes +======================== + +Fixes since v2.22 +----------------- + + * A relative pathname given to "git init --template=<path> <repo>" + ought to be relative to the directory "git init" gets invoked in, + but it instead was made relative to the repository, which has been + corrected. + + * "git worktree add" used to fail when another worktree connected to + the same repository was corrupt, which has been corrected. + + * The ownership rule for the file descriptor to fast-import remote + backend was mixed up, leading to unrelated file descriptor getting + closed, which has been fixed. + + * "git update-server-info" used to leave stale packfiles in its + output, which has been corrected. + + * The server side support for "git fetch" used to show incorrect + value for the HEAD symbolic ref when the namespace feature is in + use, which has been corrected. + + * "git am -i --resolved" segfaulted after trying to see a commit as + if it were a tree, which has been corrected. + + * "git bundle verify" needs to see if prerequisite objects exist in + the receiving repository, but the command did not check if we are + in a repository upfront, which has been corrected. + + * "git merge --squash" is designed to update the working tree and the + index without creating the commit, and this cannot be countermanded + by adding the "--commit" option; the command now refuses to work + when both options are given. + + * The data collected by fsmonitor was not properly written back to + the on-disk index file, breaking t7519 tests occasionally, which + has been corrected. + + * Update to Unicode 12.1 width table. + + * The command line to invoke a "git cat-file" command from inside + "git p4" was not properly quoted to protect a caret and running a + broken command on Windows, which has been corrected. + + * "git request-pull" learned to warn when the ref we ask them to pull + from in the local repository and in the published repository are + different. + + * When creating a partial clone, the object filtering criteria is + recorded for the origin of the clone, but this incorrectly used a + hardcoded name "origin" to name that remote; it has been corrected + to honor the "--origin <name>" option. + + * "git fetch" into a lazy clone forgot to fetch base objects that are + necessary to complete delta in a thin packfile, which has been + corrected. + + * The filter_data used in the list-objects-filter (which manages a + lazily sparse clone repository) did not use the dynamic array API + correctly---'nr' is supposed to point at one past the last element + of the array in use. This has been corrected. + + * The description about slashes in gitignore patterns (used to + indicate things like "anchored to this level only" and "only + matches directories") has been revamped. + + * The URL decoding code has been updated to avoid going past the end + of the string while parsing %-<hex>-<hex> sequence. + + * The list of for-each like macros used by clang-format has been + updated. + + * "git push --atomic" that goes over the transport-helper (namely, + the smart http transport) failed to prevent refs to be pushed when + it can locally tell that one of the ref update will fail without + having to consult the other end, which has been corrected. + + * "git clean" silently skipped a path when it cannot lstat() it; now + it gives a warning. + + * A codepath that reads from GPG for signed object verification read + past the end of allocated buffer, which has been fixed. + + * "git rm" to resolve a conflicted path leaked an internal message + "needs merge" before actually removing the path, which was + confusing. This has been corrected. + + * The "git clone" documentation refers to command line options in its + description in the short form; they have been replaced with long + forms to make them more recognisable. + + * The configuration variable rebase.rescheduleFailedExec should be + effective only while running an interactive rebase and should not + affect anything when running a non-interactive one, which was not + the case. This has been corrected. + + * "git submodule foreach" did not protect command line options passed + to the command to be run in each submodule correctly, when the + "--recursive" option was in use. + + * Use "Erase in Line" CSI sequence that is already used in the editor + support to clear cruft in the progress output. + + * The codepath to compute delta islands used to spew progress output + without giving the callers any way to squelch it, which has been + fixed. + + * The code to parse scaled numbers out of configuration files has + been made more robust and also easier to follow. + + * An incorrect list of options was cached after command line + completion failed (e.g. trying to complete a command that requires + a repository outside one), which has been corrected. + + * "git rebase --abort" used to leave refs/rewritten/ when concluding + "git rebase -r", which has been corrected. + + * "git stash show 23" used to work, but no more after getting + rewritten in C; this regression has been corrected. + + * "git interpret-trailers" always treated '#' as the comment + character, regardless of core.commentChar setting, which has been + corrected. + + * Code clean-up to avoid signed integer overlaps during binary search. + + * "git checkout -p" needs to selectively apply a patch in reverse, + which did not work well. + + * The commit-graph file is now part of the "files that the runtime + may keep open file descriptors on, all of which would need to be + closed when done with the object store", and the file descriptor to + an existing commit-graph file now is closed before "gc" finalizes a + new instance to replace it. + + * Code restructuring during 2.20 period broke fetching tags via + "import" based transports. + + * We have been trying out a few language features outside c89; the + coding guidelines document did not talk about them and instead had + a blanket ban against them. + + +Also contains various documentation updates, code clean-ups and minor fixups. diff --git a/Documentation/RelNotes/2.23.0.txt b/Documentation/RelNotes/2.23.0.txt new file mode 100644 index 0000000000..e3c4e78265 --- /dev/null +++ b/Documentation/RelNotes/2.23.0.txt @@ -0,0 +1,348 @@ +Git 2.23 Release Notes +====================== + +Updates since v2.22 +------------------- + +Backward compatibility note + + * The "--base" option of "format-patch" computed the patch-ids for + prerequisite patches in an unstable way, which has been updated to + compute in a way that is compatible with "git patch-id --stable". + + * The "git log" command by default behaves as if the --mailmap option + was given. + + +UI, Workflows & Features + + * The "git fast-export/import" pair has been taught to handle commits + with log messages in encoding other than UTF-8 better. + + * In recent versions of Git, per-worktree refs are exposed in + refs/worktrees/<wtname>/ hierarchy, which means that worktree names + must be a valid refname component. The code now sanitizes the names + given to worktrees, to make sure these refs are well-formed. + + * "git merge" learned "--quit" option that cleans up the in-progress + merge while leaving the working tree and the index still in a mess. + + * "git format-patch" learns a configuration to set the default for + its --notes=<ref> option. + + * The code to show args with potential typo that cannot be + interpreted as a commit-ish has been improved. + + * "git clone --recurse-submodules" learned to set up the submodules + to ignore commit object names recorded in the superproject gitlink + and instead use the commits that happen to be at the tip of the + remote-tracking branches from the get-go, by passing the new + "--remote-submodules" option. + + * The pattern "git diff/grep" use to extract funcname and words + boundary for Matlab has been extend to cover Octave, which is more + or less equivalent. + + * "git help git" was hard to discover (well, at least for some + people). + + * The pattern "git diff/grep" use to extract funcname and words + boundary for Rust has been added. + + * "git status" can be told a non-standard default value for the + "--[no-]ahead-behind" option with a new configuration variable + status.aheadBehind. + + * "git fetch" and "git pull" reports when a fetch results in + non-fast-forward updates to let the user notice unusual situation. + The commands learned "--no-show-forced-updates" option to disable + this safety feature. + + * Two new commands "git switch" and "git restore" are introduced to + split "checking out a branch to work on advancing its history" and + "checking out paths out of the index and/or a tree-ish to work on + advancing the current history" out of the single "git checkout" + command. + + * "git branch --list" learned to always output the detached HEAD as + the first item (when the HEAD is detached, of course), regardless + of the locale. + + * The conditional inclusion mechanism learned to base the choice on + the branch the HEAD currently is on. + + * "git rev-list --objects" learned the "--no-object-names" option to + squelch the path to the object that is used as a grouping hint for + pack-objects. + + * A new tag.gpgSign configuration variable turns "git tag -a" into + "git tag -s". + + * "git multi-pack-index" learned expire and repack subcommands. + + * "git blame" learned to "ignore" commits in the history, whose + effects (as well as their presence) get ignored. + + * "git cherry-pick/revert" learned a new "--skip" action. + + * The tips of refs from the alternate object store can be used as + starting point for reachability computation now. + + * Extra blank lines in "git status" output have been reduced. + + * The commits in a repository can be described by multiple + commit-graph files now, which allows the commit-graph files to be + updated incrementally. + + * "git range-diff" output has been tweaked for easier identification + of which part of what file the patch shown is about. + + +Performance, Internal Implementation, Development Support etc. + + * Update supporting parts of "git rebase" to remove code that should + no longer be used. + + * Developer support to emulate unsatisfied prerequisites in tests to + ensure that the remainder of the tests still succeeds when tests + with prerequisites are skipped. + + * "git update-server-info" learned not to rewrite the file with the + same contents. + + * The way of specifying the path to find dynamic libraries at runtime + has been simplified. The old default to pass -R/path/to/dir has been + replaced with the new default to pass -Wl,-rpath,/path/to/dir, + which is the more recent GCC uses. Those who need to build with an + old GCC can still use "CC_LD_DYNPATH=-R" + + * Prepare use of reachability index in topological walker that works + on a range (A..B). + + * A new tutorial targeting specifically aspiring git-core + developers has been added. + + * Auto-detect how to tell HP-UX aCC where to use dynamically linked + libraries from at runtime. + + * "git mergetool" and its tests now spawn fewer subprocesses. + + * Dev support update to help tracing out tests. + + * Support to build with MSVC has been updated. + + * "git fetch" that grabs from a group of remotes learned to run the + auto-gc only once at the very end. + + * A handful of Windows build patches have been upstreamed. + + * The code to read state files used by the sequencer machinery for + "git status" has been made more robust against a corrupt or stale + state files. + + * "git for-each-ref" with multiple patterns have been optimized. + + * The tree-walk API learned to pass an in-core repository + instance throughout more codepaths. + + * When one step in multi step cherry-pick or revert is reset or + committed, the command line prompt script failed to notice the + current status, which has been improved. + + * Many GIT_TEST_* environment variables control various aspects of + how our tests are run, but a few followed "non-empty is true, empty + or unset is false" while others followed the usual "there are a few + ways to spell true, like yes, on, etc., and also ways to spell + false, like no, off, etc." convention. + + * Adjust the dir-iterator API and apply it to the local clone + optimization codepath. + + * We have been trying out a few language features outside c89; the + coding guidelines document did not talk about them and instead had + a blanket ban against them. + + * A test helper has been introduced to optimize preparation of test + repositories with many simple commits, and a handful of test + scripts have been updated to use it. + + +Fixes since v2.22 +----------------- + + * A relative pathname given to "git init --template=<path> <repo>" + ought to be relative to the directory "git init" gets invoked in, + but it instead was made relative to the repository, which has been + corrected. + + * "git worktree add" used to fail when another worktree connected to + the same repository was corrupt, which has been corrected. + + * The ownership rule for the file descriptor to fast-import remote + backend was mixed up, leading to an unrelated file descriptor getting + closed, which has been fixed. + + * A "merge -c" instruction during "git rebase --rebase-merges" should + give the user a chance to edit the log message, even when there is + otherwise no need to create a new merge and replace the existing + one (i.e. fast-forward instead), but did not. Which has been + corrected. + + * Code cleanup and futureproof. + + * More parameter validation. + + * "git update-server-info" used to leave stale packfiles in its + output, which has been corrected. + + * The server side support for "git fetch" used to show incorrect + value for the HEAD symbolic ref when the namespace feature is in + use, which has been corrected. + + * "git am -i --resolved" segfaulted after trying to see a commit as + if it were a tree, which has been corrected. + + * "git bundle verify" needs to see if prerequisite objects exist in + the receiving repository, but the command did not check if we are + in a repository upfront, which has been corrected. + + * "git merge --squash" is designed to update the working tree and the + index without creating the commit, and this cannot be countermanded + by adding the "--commit" option; the command now refuses to work + when both options are given. + + * The data collected by fsmonitor was not properly written back to + the on-disk index file, breaking t7519 tests occasionally, which + has been corrected. + + * Update to Unicode 12.1 width table. + + * The command line to invoke a "git cat-file" command from inside + "git p4" was not properly quoted to protect a caret and running a + broken command on Windows, which has been corrected. + + * "git request-pull" learned to warn when the ref we ask them to pull + from in the local repository and in the published repository are + different. + + * When creating a partial clone, the object filtering criteria is + recorded for the origin of the clone, but this incorrectly used a + hardcoded name "origin" to name that remote; it has been corrected + to honor the "--origin <name>" option. + + * "git fetch" into a lazy clone forgot to fetch base objects that are + necessary to complete delta in a thin packfile, which has been + corrected. + + * The filter_data used in the list-objects-filter (which manages a + lazily sparse clone repository) did not use the dynamic array API + correctly---'nr' is supposed to point at one past the last element + of the array in use. This has been corrected. + + * The description about slashes in gitignore patterns (used to + indicate things like "anchored to this level only" and "only + matches directories") has been revamped. + + * The URL decoding code has been updated to avoid going past the end + of the string while parsing %-<hex>-<hex> sequence. + + * The list of for-each like macros used by clang-format has been + updated. + + * "git branch --list" learned to show branches that are checked out + in other worktrees connected to the same repository prefixed with + '+', similar to the way the currently checked out branch is shown + with '*' in front. + (merge 6e9381469e nb/branch-show-other-worktrees-head later to maint). + + * Code restructuring during 2.20 period broke fetching tags via + "import" based transports. + + * The commit-graph file is now part of the "files that the runtime + may keep open file descriptors on, all of which would need to be + closed when done with the object store", and the file descriptor to + an existing commit-graph file now is closed before "gc" finalizes a + new instance to replace it. + + * "git checkout -p" needs to selectively apply a patch in reverse, + which did not work well. + + * Code clean-up to avoid signed integer wraparounds during binary search. + + * "git interpret-trailers" always treated '#' as the comment + character, regardless of core.commentChar setting, which has been + corrected. + + * "git stash show 23" used to work, but no more after getting + rewritten in C; this regression has been corrected. + + * "git rebase --abort" used to leave refs/rewritten/ when concluding + "git rebase -r", which has been corrected. + + * An incorrect list of options was cached after command line + completion failed (e.g. trying to complete a command that requires + a repository outside one), which has been corrected. + + * The code to parse scaled numbers out of configuration files has + been made more robust and also easier to follow. + + * The codepath to compute delta islands used to spew progress output + without giving the callers any way to squelch it, which has been + fixed. + + * Protocol capabilities that go over wire should never be translated, + but it was incorrectly marked for translation, which has been + corrected. The output of protocol capabilities for debugging has + been tweaked a bit. + + * Use "Erase in Line" CSI sequence that is already used in the editor + support to clear cruft in the progress output. + + * "git submodule foreach" did not protect command line options passed + to the command to be run in each submodule correctly, when the + "--recursive" option was in use. + + * The configuration variable rebase.rescheduleFailedExec should be + effective only while running an interactive rebase and should not + affect anything when running a non-interactive one, which was not + the case. This has been corrected. + + * The "git clone" documentation refers to command line options in its + description in the short form; they have been replaced with long + forms to make them more recognisable. + + * Generation of pack bitmaps are now disabled when .keep files exist, + as these are mutually exclusive features. + (merge 7328482253 ew/repack-with-bitmaps-by-default later to maint). + + * "git rm" to resolve a conflicted path leaked an internal message + "needs merge" before actually removing the path, which was + confusing. This has been corrected. + + * "git stash --keep-index" did not work correctly on paths that have + been removed, which has been fixed. + (merge b932f6a5e8 tg/stash-keep-index-with-removed-paths later to maint). + + * Window 7 update ;-) + + * A codepath that reads from GPG for signed object verification read + past the end of allocated buffer, which has been fixed. + + * "git clean" silently skipped a path when it cannot lstat() it; now + it gives a warning. + + * "git push --atomic" that goes over the transport-helper (namely, + the smart http transport) failed to prevent refs to be pushed when + it can locally tell that one of the ref update will fail without + having to consult the other end, which has been corrected. + + * The internal diff machinery can be made to read out of bounds while + looking for --function-context line in a corner case, which has been + corrected. + (merge b777f3fd61 jk/xdiff-clamp-funcname-context-index later to maint). + + * Other code cleanup, docfix, build fix, etc. + (merge fbec05c210 cc/test-oidmap later to maint). + (merge 7a06fb038c jk/no-system-includes-in-dot-c later to maint). + (merge 81ed2b405c cb/xdiff-no-system-includes-in-dot-c later to maint). + (merge d61e6ce1dd sg/fsck-config-in-doc later to maint). |