269 lines
11 KiB
Plaintext
269 lines
11 KiB
Plaintext
Git 2.10 Release Notes
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======================
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Backward compatibility notes
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----------------------------
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Updates since v2.9
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------------------
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UI, Workflows & Features
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* "git pull --rebase --verify-signature" learned to warn the user
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that "--verify-signature" is a no-op when rebasing.
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* An upstream project can make a recommendation to shallowly clone
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some submodules in the .gitmodules file it ships.
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* "git worktree add" learned that '-' can be used as a short-hand for
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"@{-1}", the previous branch.
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* Update the funcname definition to support css files.
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* The completion script (in contrib/) learned to complete "git
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status" options.
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* Messages that are generated by auto gc during "git push" on the
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receiving end are now passed back to the sending end in such a way
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that they are shown with "remote: " prefix to avoid confusing the
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users.
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* "git add -i/-p" learned to honor diff.compactionHeuristic
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experimental knob, so that the user can work on the same hunk split
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as "git diff" output.
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(merge 46e3d17 jk/add-i-diff-compact-heuristics later to maint).
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* "upload-pack" allows a custom "git pack-objects" replacement when
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responding to "fetch/clone" via the uploadpack.packObjectsHook.
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(merge 20b20a2 jk/upload-pack-hook later to maint).
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* Teach format-patch and mailsplit (hence "am") how a line that
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happens to begin with "From " in the e-mail message is quoted with
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">", so that these lines can be restored to their original shape.
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(merge d9925d1 ew/mboxrd-format-am later to maint).
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* "git repack" learned the "--keep-unreachable" option, which sends
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loose unreachable objects to a pack instead of leaving them loose.
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This helps heuristics based on the number of loose objects
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(e.g. "gc --auto").
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(merge e26a8c4 jk/repack-keep-unreachable later to maint).
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* "log --graph --format=" learned that "%>|(N)" specifies the width
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relative to the terminal's left edge, not relative to the area to
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draw text that is to the right of the ancestry-graph section. It
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also now accepts negative N that means the column limit is relative
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to the right border.
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(merge 066790d nd/graph-width-padded later to maint).
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* A careless invocation of "git send-email directory/" after editing
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0001-change.patch with an editor often ends up sending both
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0001-change.patch and its backup file, 0001-change.patch~, causing
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embarrassment and a minor confusion. Detect such an input and
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offer to skip the backup files when sending the patches out.
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(merge 531220b jc/send-email-skip-backup later to maint).
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* "git submodule update" that drives many "git clone" could
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eventually hit flaky servers/network conditions on one of the
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submodules; the command learned to retry the attempt.
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* The output coloring scheme learned two new attributes, italic and
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strike, in addition to existing bold, reverse, etc.
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* "git log" learns log.showSignature configuration variable, and a
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command line option "--no-show-signature" to countermand it.
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(merge fce04c3 mj/log-show-signature-conf later to maint).
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* A couple of "git svn" updates.
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Performance, Internal Implementation, Development Support etc.
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* "git fast-import" learned the same performance trick to avoid
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creating too small a packfile as "git fetch" and "git push" have,
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using *.unpackLimit configuration.
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* When "git daemon" is run without --[init-]timeout specified, a
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connection from a client that silently goes offline can hang around
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for a long time, wasting resources. The socket-level KEEPALIVE has
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been enabled to allow the OS to notice such failed connections.
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(merge a43b68a ew/daemon-socket-keepalive later to maint).
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* "git upload-pack" command has been updated to use the parse-options
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API.
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* The "git apply" standalone program is being libified; this is the
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first step to move many state variables into a structure that can
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be explicitly (re)initialized to make the machinery callable more
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than once.
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* HTTP transport gained an option to produce more detailed debugging
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trace.
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(merge 73e57aa ep/http-curl-trace later to maint).
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* Instead of taking advantage of a struct string_list that is
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allocated with all NULs happens to be STRING_LIST_INIT_NODUP kind,
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initialize them explicitly as such, to document their behaviour
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better.
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(merge 2721ce2 jk/string-list-static-init later to maint).
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* HTTPd tests learned to show the server error log to help diagnosing
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a failing tests.
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(merge 44f243d nd/test-lib-httpd-show-error-log-in-verbose later to maint).
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* The ownership rule for the piece of memory that hold references to
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be fetched in "git fetch" was screwy, which has been cleaned up.
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(merge b7410f6 km/fetch-do-not-free-remote-name later to maint).
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* "git bisect" makes an internal call to "git diff-tree" when
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bisection finds the culprit, but this call did not initialize the
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data structure to pass to the diff-tree API correctly.
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(merge 43ec550 jk/bisect-show-tree later to maint).
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* Further preparatory clean-up for "worktree" feature continues.
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(merge 0409e0b nd/worktree-cleanup-post-head-protection later to maint).
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* Formats of the various data (and how to validate them) where we use
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GPG signature have been documented.
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(merge cc6ee97 mg/signature-doc later to maint).
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* A new run-command API function pipe_command() is introduced to
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sanely feed data to the standard input while capturing data from
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the standard output and the standard error of an external process,
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which is cumbersome to hand-roll correctly without deadlocking.
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The codepath to sign data in a prepared buffer with GPG has been
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updated to use this API to read from the status-fd to check for
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errors (instead of relying on GPG's exit status).
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(merge efee955 jk/gpg-interface-cleanup later to maint).
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* Allow t/perf framework to use the features from the most recent
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version of Git even when testing an older installed version.
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Also contains various documentation updates and code clean-ups.
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Fixes since v2.9
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----------------
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Unless otherwise noted, all the fixes since v2.8 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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* The commands in `git log` family take %C(auto) in a custom format
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string. This unconditionally turned the color on, ignoring
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--no-color or with --color=auto when the output is not connected to
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a tty; this was corrected to make the format truly behave as
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"auto".
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(merge b15a3e0 et/pretty-format-c-auto later to maint).
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* "git rev-list --count" whose walk-length is limited with "-n"
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option did not work well with the counting optimized to look at the
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bitmap index.
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(merge fb85db8 jk/rev-list-count-with-bitmap later to maint).
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* "git show -W" (extend hunks to cover the entire function, delimited
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by lines that match the "funcname" pattern) used to show the entire
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file when a change added an entire function at the end of the file,
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which has been fixed.
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(merge 6f8d9bc rs/xdiff-hunk-with-func-line later to maint).
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* The documentation set has been updated so that literal commands,
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configuration variables and environment variables are consistently
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typeset in fixed-width font and bold in manpages.
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* "git svn propset" subcommand that was added in 2.3 days is
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documented now.
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* The documentation tries to consistently spell "GPG"; when
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referring to the specific program name, "gpg" is used.
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* "git reflog" stopped upon seeing an entry that denotes a branch
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creation event (aka "unborn"), which made it appear as if the
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reflog was truncated.
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* The git-prompt scriptlet (in contrib/) was not friendly with those
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who uses "set -u", which has been fixed.
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* compat/regex code did not cleanly compile.
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* A codepath that used alloca(3) to place an unbounded amount of data
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on the stack has been updated to avoid doing so.
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* "git update-index --add --chmod=+x file" may be usable as an escape
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hatch, but not a friendly thing to force for people who do need to
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use it regularly. "git add --chmod=+x file" can be used instead.
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* Build improvements for gnome-keyring (in contrib/)
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* "git status" used to say "working directory" when it meant "working
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tree".
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* Comments about misbehaving FreeBSD shells have been clarified with
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the version number (9.x and before are broken, newer ones are OK).
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* "git cherry-pick A" worked on an unborn branch, but "git
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cherry-pick A..B" didn't.
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* Fix an unintended regression in v2.9 that breaks "clone --depth"
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that recurses down to submodules by forcing the submodules to also
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be cloned shallowly, which many server instances that host upstream
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of the submodules are not prepared for.
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(merge 18a74a0 sb/clone-shallow-passthru later to maint).
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* Fix unnecessarily waste in the idiomatic use of ': ${VAR=default}'
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to set the default value, without enclosing it in double quotes.
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(merge 01247e0 lc/shell-default-value-noexpand later to maint).
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* Some platform-specific code had non-ANSI strict declarations of C
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functions that do not take any parameters, which has been
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corrected.
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(merge 0767172 js/mingw-parameter-less-c-functions later to maint).
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* The internal code used to show local timezone offset is not
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prepared to handle timestamps beyond year 2100, and gave a
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bogus offset value to the caller. Use a more benign looking
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+0000 instead and let "git log" going in such a case, instead
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of aborting.
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(merge bab7483 jk/tzoffset-fix later to maint).
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* One among four invocations of readlink(1) in our test suite has
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been rewritten so that the test can run on systems without the
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command (others are in valgrind test framework and t9802).
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(merge d2addc3 ak/t7800-wo-readlink later to maint).
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* t/perf needs /usr/bin/time with GNU extension; the invocation of it
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is updated to "gtime" on Darwin.
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(merge e3efa94 js/perf-on-apple later to maint).
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* A bug, which caused "git p4" while running under verbose mode to
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report paths that are omitted due to branch prefix incorrectly, has
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been fixed; the command said "Ignoring file outside of prefix" for
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paths that are _inside_.
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(merge 09667d0 ao/p4-has-branch-prefix-fix later to maint).
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* The top level documentation "git help git" still pointed at the
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documentation set hosted at now-defunct google-code repository.
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Update it to point to https://git.github.io/htmldocs/git.html
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instead.
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(merge f793582 jn/preformatted-doc-url later to maint).
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* A helper function that takes the contents of a commit object and
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finds its subject line did not ignore leading blank lines, as is
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commonly done by other codepaths. Make it ignore leading blank
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lines to match.
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(merge 054a5ae js/find-commit-subject-ignore-leading-blanks later to maint).
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* For a long time, we carried an in-code comment that said our
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colored output would work only when we use fprintf/fputs on
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Windows, which no longer is the case for the past few years.
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(merge 3d0a833 js/color-on-windows-comment later to maint).
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* Other minor clean-ups and documentation updates
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(merge e51b0df pb/commit-editmsg-path later to maint).
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(merge b333d0d jk/send-pack-stdio later to maint).
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(merge fcf0fe9 lf/sideband-returns-void later to maint).
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(merge 5819c2e sb/t5614-modernize later to maint).
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(merge fe0537a cb/t7810-test-label-fix later to maint).
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(merge 412b9a1 jc/t2300-setup later to maint).
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