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Git 2.7 Release Notes
=====================
Updates since v2.6
------------------
UI, Workflows & Features
* "git remote" learned "get-url" subcommand to show the URL for a
given remote name used for fetching and pushing.
* There was no way to defeat a configured rebase.autostash variable
from the command line, as "git rebase --no-autostash" was missing.
* "git log --date=local" used to only show the normal (default)
format in the local timezone. The command learned to take 'local'
as an instruction to use the local timezone with other formats,
* The refs used during a "git bisect" session is now per-worktree so
that independent bisect sessions can be done in different worktrees
created with "git worktree add".
* Users who are too busy to type three extra keystrokes to ask for
"git stash show -p" can now set stash.showPatch configuration
varible to true to always see the actual patch, not just the list
of paths affected with feel for the extent of damage via diffstat.
* "quiltimport" allows to specify the series file by honoring the
$QUILT_SERIES environment and also --series command line option.
* The use of 'good/bad' in "git bisect" made it confusing to use when
hunting for a state change that is not a regression (e.g. bugfix).
The command learned 'old/new' and then allows the end user to
say e.g. "bisect start --term-old=fast --term-new=slow" to find a
performance regression.
* "git interpret-trailers" can now run outside of a Git repository.
* "git p4" learned to reencode the pathname it uses to communicate
with the p4 depot with a new option.
* Give progress meter to "git filter-branch".
* Allow a later "!/abc/def" to override an earlier "/abc" that
appears in the same .gitignore file to make it easier to express
"everything in /abc directory is ignored, except for ...".
* Teach "git p4" to send large blobs outside the repository by
talking to Git LFS.
Performance, Internal Implementation, Development Support etc.
* The infrastructure to rewrite "git submodule" in C is being built
incrementally. Let's polish these early parts well enough and make
them graduate to 'next' and 'master', so that the more involved
follow-up can start cooking on a solid ground.
* Some features from "git tag -l" and "git branch -l" have been made
available to "git for-each-ref" so that eventually the unified
implementation can be shared across all three.
* Because "test_when_finished" in our test framework queues the
clean-up tasks to be done in a shell variable, it should not be
used inside a subshell. Add a mechanism to allow 'bash' to catch
such uses, and fix the ones that were found.
(merge 0968f12 jk/test-lint-forbid-when-finished-in-subshell later to maint).
* The debugging infrastructure for pkt-line based communication has
been improved to mark the side-band communication specifically.
(merge fd89433 jk/async-pkt-line later to maint).
* Update "git branch" that list existing branches, using the
ref-filter API that is shared with "git tag" and "git
for-each-ref".
* The test for various line-ending conversions has been enhanced.
* A few test scripts around "git p4" have been improved for
portability.
* Many allocations that is manually counted (correctly) that are
followed by strcpy/sprintf have been replaced with a less error
prone constructs such as xstrfmt.
Also contains various documentation updates and code clean-ups.
Fixes since v2.6
----------------
Unless otherwise noted, all the fixes since v2.6 in the maintenance
track are contained in this release (see the maintenance releases'
notes for details).
* Very small number of options take a parameter that is optional
(which is not a great UI element as they can only appear at the end
of the command line). Add notice to documentation of each and
every one of them.
(merge 2b594bf mm/keyid-docs later to maint).
* "git blame --first-parent v1.0..v2.0" was not rejected but did not
limit the blame to commits on the first parent chain.
(merge 95a4fb0 jk/blame-first-parent later to maint).
* "git subtree" (in contrib/) now can take whitespaces in the
pathnames, not only in the in-tree pathname but the name of the
directory that the repository is in. (merge 5b6ab38
as/subtree-with-spaces later to maint).
* The ssh transport, just like any other transport over the network,
did not clear GIT_* environment variables, but it is possible to
use SendEnv and AcceptEnv to leak them to the remote invocation of
Git, which is not a good idea at all. Explicitly clear them just
like we do for the local transport.
(merge a48b409 jk/connect-clear-env later to maint).
* Correct "git p4 --detect-labels" so that it does not fail to create
a tag that points at a commit that is also being imported.
(merge b43702a ld/p4-import-labels later to maint).
* The Makefile always runs the library archiver with hardcoded "crs"
options, which was inconvenient for exotic platforms on which
people want to use programs with totally different set of command
line options.
(merge ac179b4 jw/make-arflags-customizable later to maint).
* Customization to change the behaviour with "make -w" and "make -s"
in our Makefile was broken when they were used together.
(merge ef49e05 jk/make-findstring-makeflags-fix later to maint).
* Allocation related functions and stdio are unsafe things to call
inside a signal handler, and indeed killing the pager can cause
glibc to deadlock waiting on allocation mutex as our signal handler
tries to free() some data structures in wait_for_pager(). Reduce
these unsafe calls.
(merge 507d780 ti/glibc-stdio-mutex-from-signal-handler later to maint).
* The way how --ref/--notes to specify the notes tree reference are
DWIMmed was not clearly documented.
(merge e14c92e jk/notes-dwim-doc later to maint).
* "git gc" used to barf when a symbolic ref has gone dangling
(e.g. the branch that used to be your upstream's default when you
cloned from it is now gone, and you did "fetch --prune").
(merge 14886b4 js/gc-with-stale-symref later to maint).
* "git clone --dissociate" runs a big "git repack" process at the
end, and it helps to close file descriptors that are open on the
packs and their idx files before doing so on filesystems that
cannot remove a file that is still open.
(merge 786b150 js/clone-dissociate later to maint).
* Description of the "log.follow" configuration variable in "git log"
documentation is now also copied to "git config" documentation.
(merge fd8d07e dt/log-follow-config later to maint).
* "git rebase -i" had a minor regression recently, which stopped
considering a line that begins with an indented '#' in its insn
sheet not a comment, which is now fixed.
(merge 1db168e gr/rebase-i-drop-warn later to maint).
* After "git checkout --detach", "git status" reported a fairly
useless "HEAD detached at HEAD", instead of saying at which exact
commit.
(merge 0eb8548 mm/detach-at-HEAD-reflog later to maint).
* When "git send-email" wanted to talk over Net::SMTP::SSL,
Net::Cmd::datasend() did not like to be fed too many bytes at the
same time and failed to send messages. Send the payload one line
at a time to work around the problem.
(merge f60c483 sa/send-email-smtp-batch-data-limit later to maint).
* When "git am" was rewritten as a built-in, it stopped paying
attention to user.signingkey, which was fixed.
(merge 434c64d pt/am-builtin later to maint).
* It was not possible to use a repository-lookalike created by "git
worktree add" as a local source of "git clone".
(merge d78db84 nd/clone-linked-checkout later to maint).
* On a case insensitive filesystems, setting GIT_WORK_TREE variable
using a random cases that does not agree with what the filesystem
thinks confused Git that it wasn't inside the working tree.
(merge 63ec5e1 js/icase-wt-detection later to maint).
* Performance-measurement tests did not work without an installed Git.
(merge 31cd128 sb/perf-without-installed-git later to maint).
* A test script for the HTTP service had a timing dependent bug,
which was fixed.
(merge 362d8b6 sb/http-flaky-test-fix later to maint).
* There were some classes of errors that "git fsck" diagnosed to its
standard error that did not cause it to exit with non-zero status.
(merge 122f76f jc/fsck-dropped-errors later to maint).
* Work around "git p4" failing when the P4 depot records the contents
in UTF-16 without UTF-16 BOM.
(merge 1f5f390 ls/p4-translation-failure later to maint).
* When "git gc --auto" is backgrounded, its diagnosis message is
lost. Save it to a file in $GIT_DIR and show it next time the "gc
--auto" is run.
(merge 329e6e8 nd/gc-auto-background-fix later to maint).
* The submodule code has been taught to work better with separate
work trees created via "git worktree add".
(merge 11f9dd7 mk/submodule-gitdir-path later to maint).
* "git gc" is safe to run anytime only because it has the built-in
grace period to protect young objects. In order to run with no
grace period, the user must make sure that the repository is
quiescent.
(merge fae1a90 jc/doc-gc-prune-now later to maint).
* A recent "filter-branch --msg-filter" broke skipping of the commit
object header, which is fixed.
(merge a5a4b3f jk/filter-branch-use-of-sed-on-incomplete-line later to maint).
* The normalize_ceiling_entry() function does not muck with the end
of the path it accepts, and the real world callers do rely on that,
but a test insisted that the function drops a trailing slash.
(merge b2a7123 rd/test-path-utils later to maint).
* Code clean-up and minor fixes.
(merge 15ed07d jc/rerere later to maint).
(merge e7a7401 pt/pull-builtin later to maint).
(merge 29bc480 nd/ls-remote-does-not-have-u-option later to maint).
(merge be510e0 jk/asciidoctor-section-heading-markup-fix later to maint).
(merge 83e6bda tk/typofix-connect-unknown-proto-error later to maint).
(merge a43eb67 tk/doc-interpret-trailers-grammo later to maint).
(merge ba128e2 es/worktree-add-cleanup later to maint).
(merge 44cd91e cc/quote-comments later to maint).
(merge 147875f sb/submodule-config-parse later to maint).
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