The fourth batch

[git] / Documentation / RelNotes / 2.25.0.txt

Git 2.25 Release Notes
======================

Updates since v2.24
-------------------

Backward compatibility notes


UI, Workflows & Features

 * A tutorial on object enumeration has been added.

 * The branch description ("git branch --edit-description") has been
   used to fill the body of the cover letters by the format-patch
   command; this has been enhanced so that the subject can also be
   filled.

 * "git rebase --preserve-merges" has been marked as deprecated; this
   release stops advertising it in the "git rebase -h" output.

 * The code to generate multi-pack index learned to show (or not to
   show) progress indicators.

 * "git apply --3way" learned to honor merge.conflictStyle
   configuration variable, like merges would.

 * The custom format for "git log --format=<format>" learned the l/L
   placeholder that is similar to e/E that fills in the e-mail
   address, but only the local part on the left side of '@'.

 * Documentation pages for "git shortlog" now list commit limiting
   options explicitly.

 * The patterns to detect function boundary for Elixir language has
   been added.

 * The completion script (in contrib/) learned that the "--onto"
   option of "git rebase" can take its argument as the value of the
   option.

 * The userdiff machinery has been taught that "async def" is another
   way to begin a "function" in Python.

 * "git range-diff" learned to take the "--notes=<ref>" and the
   "--no-notes" options to control the commit notes included in the
   log message that gets compared.

 * "git rev-parse --show-toplevel" run outside of any working tree did
   not error out, which has been corrected.


Performance, Internal Implementation, Development Support etc.

 * Debugging support for lazy cloning has been a bit improved.

 * Move the definition of a set of bitmask constants from 0ctal
   literal to (1U<<count) notation.

 * Test updates to prepare for SHA-2 transition continues.

 * Crufty code and logic accumulated over time around the object
   parsing and low-level object access used in "git fsck" have been
   cleaned up.

 * The implementation of "git log --graph" got refactored and then its
   output got simplified.

 * Follow recent push to move API docs from Documentation/ to header
   files and update config.h

 * "git bundle" has been taught to use the parse options API.  "git
   bundle verify" learned "--quiet" and "git bundle create" learned
   options to control the progress output.

 * Handling of commit objects that use non UTF-8 encoding during
   "rebase -i" has been improved.

 * The beginning of rewriting "git add -i" in C.

 * A label used in the todo list that are generated by "git rebase
   --rebase-merges" is used as a part of a refname; the logic to come
   up with the label has been tightened to avoid names that cannot be
   used as such.

 * The logic to avoid duplicate label names generated by "git rebase
   --rebase-merges" forgot that the machinery itself uses "onto" as a
   label name, which must be avoided by auto-generated labels, which
   has been corrected.

 * We have had compatibility fallback macro definitions for "PRIuMAX",
   "PRIu32", etc. but did not for "PRIdMAX", while the code used the
   last one apparently without any hiccup reported recently.  The
   fallback macro definitions for these <inttypes.h> macros that must
   appear in C99 systems have been removed.

 * Recently we have declared that GIT_TEST_* variables take the
   usual boolean values (it used to be that some used "non-empty
   means true" and taking GIT_TEST_VAR=YesPlease as true); make
   sure we notice and fail when non-bool strings are given to
   these variables.

 * Users of oneway_merge() (like "reset --hard") learned to take
   advantage of fsmonitor to avoid unnecessary lstat(2) calls.

 * Performance tweak on "git push" into a repository with many refs
   that point at objects we have never heard of.

 * PerfTest fix to avoid stale result mixed up with the latest round
   of test results.


Fixes since v2.24
-----------------

 * "rebase -i" ceased to run post-commit hook by mistake in an earlier
   update, which has been corrected.

 * "git notes copy $original" ought to copy the notes attached to the
   original object to HEAD, but a mistaken tightening to command line
   parameter validation made earlier disabled that feature by mistake.

 * When all files from some subdirectory were renamed to the root
   directory, the directory rename heuristics would fail to detect that
   as a rename/merge of the subdirectory to the root directory, which has
   been corrected.

 * Code clean-up and a bugfix in the logic used to tell worktree local
   and repository global refs apart.
   (merge f45f88b2e4 sg/dir-trie-fixes later to maint).

 * "git stash save" in a working tree that is sparsely checked out
   mistakenly removed paths that are outside the area of interest.
   (merge 4a58c3d7f7 js/update-index-ignore-removal-for-skip-worktree later to maint).

 * "git rev-parse --git-path HEAD.lock" did not give the right path
   when run in a secondary worktree.
   (merge 76a53d640f js/git-path-head-dot-lock-fix later to maint).

 * "git merge --no-commit" needs "--no-ff" if you do not want to move
   HEAD, which has been corrected in the manual page for "git bisect".
   (merge 8dd327b246 ma/bisect-doc-sample-update later to maint).

 * "git worktree add" internally calls "reset --hard" that should not
   descend into submodules, even when submodule.recurse configuration
   is set, but it was affected.  This has been corrected.
   (merge 4782cf2ab6 pb/no-recursive-reset-hard-in-worktree-add later to maint).

 * Messages from die() etc. can be mixed up from multiple processes
   without even line buffering on Windows, which has been worked
   around.
   (merge 116d1fa6c6 js/vreportf-wo-buffering later to maint).

 * HTTP transport had possible allocator/deallocator mismatch, which
   has been corrected.

 * The watchman integration for fsmonitor was racy, which has been
   corrected to be more conservative.
   (merge dd0b61f577 kw/fsmonitor-watchman-fix later to maint).

 * Fetching from multiple remotes into the same repository in parallel
   had a bad interaction with the recent change to (optionally) update
   the commit-graph after a fetch job finishes, as these parallel
   fetches compete with each other.  Which has been corrected.

 * Recent update to "git stash pop" made the command empty the index
   when run with the "--quiet" option, which has been corrected.

 * "git fetch" codepath had a big "do not lazily fetch missing objects
   when I ask if something exists" switch.  This has been corrected by
   marking the "does this thing exist?" calls with "if not please do not
   lazily fetch it" flag.

 * Test update to avoid wasted cycles.
   (merge e0316695ec sg/skip-skipped-prereq later to maint).

 * Error handling after "git push" finishes sending the packdata and
   waits for the response to the remote side has been improved.
   (merge ad7a403268 jk/send-pack-remote-failure later to maint).

 * Some codepaths in "gitweb" that forgot to escape URLs generated
   based on end-user input have been corrected.
   (merge a376e37b2c jk/gitweb-anti-xss later to maint).

 * CI jobs for macOS has been made less chatty when updating perforce
   package used during testing.
   (merge 0dbc4a0edf jc/azure-ci-osx-fix-fix later to maint).

 * "git unpack-objects" used to show progress based only on the number
   of received and unpacked objects, which stalled when it has to
   handle an unusually large object.  It now shows the throughput as
   well.
   (merge bae60ba7e9 sg/unpack-progress-throughput later to maint).

 * The sequencer machinery compared the HEAD and the state it is
   attempting to commit to decide if the result would be a no-op
   commit, even when amending a commit, which was incorrect, and
   has been corrected.

 * The code to parse GPG output used to assume incorrectly that the
   finterprint for the primary key would always be present for a valid
   signature, which has been corrected.
   (merge 67a6ea6300 hi/gpg-optional-pkfp-fix later to maint).

 * "git submodule status" and "git submodule status --cached" show
   different things, but the documentation did not cover them
   correctly, which has been corrected.
   (merge 8d483c8408 mg/doc-submodule-status-cached later to maint).

 * "git reset --patch $object" without any pathspec should allow a
   tree object to be given, but incorrectly required a committish,
   which has been corrected.

 * "git submodule status" that is run from a subdirectory of the
   superproject did not work well, which has been corrected.
   (merge 1f3aea22c7 mg/submodule-status-from-a-subdirectory later to maint).

 * The revision walking machinery uses resources like per-object flag
   bits that need to be reset before a new iteration of walking
   begins, but the resources related to topological walk were not
   cleared correctly, which has been corrected.
   (merge 0aa0c2b2ec mh/clear-topo-walk-upon-reset later to maint).

 * TravisCI update.
   (merge 176441bfb5 sg/osx-force-gcc-9 later to maint).

 * While running "revert" or "cherry-pick --edit" for multiple
   commits, a recent regression incorrectly detected "nothing to
   commit, working tree clean", instead of replaying the commits,
   which has been corrected.
   (merge befd4f6a81 sg/assume-no-todo-update-in-cherry-pick later to maint).

 * Other code cleanup, docfix, build fix, etc.
   (merge 80736d7c5e jc/am-show-current-patch-docfix later to maint).
   (merge 8b656572ca sg/commit-graph-usage-fix later to maint).
   (merge 6c02042139 mr/clone-dir-exists-to-path-exists later to maint).
   (merge 44ae131e38 sg/blame-indent-heuristics-is-now-the-default later to maint).
   (merge 0115e5d929 dl/doc-diff-no-index-implies-exit-code later to maint).
   (merge 270de6acbe en/t6024-style later to maint).
   (merge 14c4776d75 ns/test-desc-typofix later to maint).
   (merge 68d40f30c4 dj/typofix-merge-strat later to maint).
   (merge f66e0401ab jk/optim-in-pack-idx-conversion later to maint).
   (merge 169bed7421 rs/parse-options-dup-null-fix later to maint).
   (merge 51bd6be32d rs/use-copy-array-in-mingw-shell-command-preparation later to maint).
   (merge b018719927 ma/t7004 later to maint).
   (merge 932757b0cc ar/install-doc-update-cmds-needing-the-shell later to maint).
   (merge 46efd28be1 ep/guard-kset-tar-headers later to maint).
   (merge 9e5afdf997 ec/fetch-mark-common-refs-trace2 later to maint).
   (merge f0e58b3fe8 pb/submodule-update-fetches later to maint).
   (merge 2a02262078 dl/t5520-cleanup later to maint).
   (merge a4fb016ba1 js/pkt-line-h-typofix later to maint).
   (merge 54a7a64613 rs/simplify-prepare-cmd later to maint).
   (merge 3eae30e464 jk/lore-is-the-archive later to maint).
   (merge 14b7664df8 dl/lore-is-the-archive later to maint).