178 lines
7.6 KiB
Plaintext
178 lines
7.6 KiB
Plaintext
Git 2.8 Release Notes
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=====================
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Updates since v2.7
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------------------
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UI, Workflows & Features
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* "branch --delete" has "branch -d" but "push --delete" does not.
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(merge 38a2559 ps/push-delete-option later to maint).
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* "git blame" learned to produce the progress eye-candy when it takes
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too much time before emitting the first line of the result.
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* "git grep" can now be configured (or told from the command line)
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how many threads to use when searching in the working tree files.
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* Some "git notes" operations, e.g. "git log --notes=<note>", should
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be able to read notes from any tree-ish that is shaped like a notes
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tree, but the notes infrastructure required that the argument must
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be a ref under refs/notes/. Loosen it to require a valid ref only
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when the operation would update the notes (in which case we must
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have a place to store the updated notes tree, iow, a ref).
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* "git grep" by default does not fall back to its "--no-index"
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behaviour outside a directory under Git's control (otherwise the
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user may by mistake end up running a huge recursive search); with a
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new configuration (set in $HOME/.gitconfig--by definition this
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cannot be set in the config file per project), this safety can be
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disabled.
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* "git pull --rebase" has been extended to allow invoking
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"rebase -i".
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* "git p4" learned to cope with the type of a file getting changed.
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* "git format-patch" learned to notice format.outputDirectory
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configuration variable. This allows "-o <dir>" option to be
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omitted on the command line if you always use the same directory in
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your workflow.
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* "interpret-trailers" has been taught to optionally update a file in
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place, instead of always writing the result to the standard output.
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Performance, Internal Implementation, Development Support etc.
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* Add a framework to spawn a group of processes in parallel, and use
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it to run "git fetch --recurse-submodules" in parallel.
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* A slight update to the Makefile to mark "phoney" targets
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as such correctly.
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* In-core storage of the reverse index for .pack files (which lets
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you go from a pack offset to an object name) has been streamlined.
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* d95138e6 (setup: set env $GIT_WORK_TREE when work tree is set, like
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$GIT_DIR, 2015-06-26) attempted to work around a glitch in alias
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handling by overwriting GIT_WORK_TREE environment variable to
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affect subprocesses when set_git_work_tree() gets called, which
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resulted in a rather unpleasant regression to "clone" and "init".
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Try to address the same issue by always restoring the environment
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and respawning the real underlying command when handling alias.
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* The low-level code that is used to create symbolic references has
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been updated to share more code with the code that deals with
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normal references.
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* strbuf_getline() and friends have been redefined to make it easier
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to identify which callsite of (new) strbuf_getline_lf() should
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allow and silently ignore carriage-return at the end of the line to
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help users on DOSsy systems.
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* "git shortlog" used to accumulate various pieces of information
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regardless of what was asked to be shown in the final output. It
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has been optimized by noticing what need not to be collected
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(e.g. there is no need to collect the log messages when showing
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only the number of changes).
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Also contains various documentation updates and code clean-ups.
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Fixes since v2.7
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----------------
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Unless otherwise noted, all the fixes since v2.7 in the maintenance
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track are contained in this release (see the maintenance releases'
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notes for details).
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* An earlier change in 2.5.x-era broke users' hooks and aliases by
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exporting GIT_WORK_TREE to point at the root of the working tree,
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interfering when they tried to use a different working tree without
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setting GIT_WORK_TREE environment themselves.
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(merge df1e6ea nd/stop-setenv-work-tree later to maint).
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* The "exclude_list" structure has the usual "alloc, nr" pair of
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fields to be used by ALLOC_GROW(), but clear_exclude_list() forgot
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to reset 'alloc' to 0 when it cleared 'nr' to discard the managed
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array.
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(merge 2653a8c nd/dir-exclude-cleanup later to maint).
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* Paths that have been told the index about with "add -N" are not
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quite yet in the index, but a few commands behaved as if they
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already are in a harmful way.
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(merge 4d55200 nd/ita-cleanup later to maint).
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* "git send-email" was confused by escaped quotes stored in the alias
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files saved by "mutt", which has been corrected.
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(merge 2c510f2 ew/send-email-mutt-alias-fix later to maint).
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* A few unportable C construct have been spotted by clang compiler
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and have been fixed.
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(merge a0df2e5 jk/clang-pedantic later to maint).
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* The documentation has been updated to hint the connection between
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the '--signoff' option and DCO.
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(merge b2c150d dw/signoff-doc later to maint).
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* "git reflog" incorrectly assumed that all objects that used to be
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at the tip of a ref must be commits, which caused it to segfault.
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(merge aecad37 dk/reflog-walk-with-non-commit later to maint).
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* The ignore mechanism saw a few regressions around untracked file
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listing and sparse checkout selection areas in 2.7.0; the change
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that is responsible for the regression has been reverted.
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(merge 8c72236 nd/exclusion-regression-fix later to maint).
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* Some codepaths used fopen(3) when opening a fixed path in $GIT_DIR
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(e.g. COMMIT_EDITMSG) that is meant to be left after the command is
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done. This however did not work well if the repository is set to
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be shared with core.sharedRepository and the umask of the previous
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user is tighter. They have been made to work better by calling
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unlink(2) and retrying after fopen(3) fails with EPERM.
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(merge ea56518 js/fopen-harder later to maint).
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* Asking gitweb for a nonexistent commit left a warning in the server
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log.
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Somebody may want to follow this up with an additional test, perhaps?
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IIRC, we do test that no Perl warnings are given to the server log,
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so this should have been caught if our test coverage were good.
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(merge a9eb90a ho/gitweb-squelch-undef-warning later to maint).
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* "git rebase", unlike all other callers of "gc --auto", did not
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ignore the exit code from "gc --auto".
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(merge 8c24f5b jk/ok-to-fail-gc-auto-in-rebase later to maint).
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* Many codepaths that run "gc --auto" before exiting kept packfiles
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mapped and left the file descriptors to them open, which was not
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friendly to systems that cannot remove files that are open. They
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now close the packs before doing so.
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(merge d562102 js/close-packs-before-gc later to maint).
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* A recent optimization to filter-branch in v2.7.0 introduced a
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regression when --prune-empty filter is used, which has been
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corrected.
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(merge 1dc413e jk/filter-branch-no-index later to maint).
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* The description for SANITY prerequisite the test suite uses has
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been clarified both in the comment and in the implementation.
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(merge 719c3da jk/sanity later to maint).
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* "git tag" started listing a tag "foo" as "tags/foo" when a branch
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named "foo" exists in the same repository; remove this unnecessary
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disambiguation, which is a regression introduced in v2.7.0.
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(merge 0571979 jk/list-tag-2.7-regression later to maint).
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* The way "git svn" uses auth parameter was broken by Subversion
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1.9.0 and later.
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(merge 0b66415 ew/svn-1.9.0-auth later to maint).
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* Other minor clean-ups and documentation updates
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(merge 99487cf ss/user-manual later to maint).
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(merge e914ef0 ew/for-each-ref-doc later to maint).
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(merge 36fc7d8 sg/t6050-failing-editor-test-fix later to maint).
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(merge 60253a6 ss/clone-depth-single-doc later to maint).
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