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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Explain pieces of the format-patch output upfront before the rest
of the documentation starts referring to them.
* jc/doc-format-patch-clarify:
format-patch: give an overview of what a "patch" message is
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Remove the final hint that we used to have a scripted "git rebase".
* ab/remove-rebase-usebuiltin:
rebase: remove transitory rebase.useBuiltin setting & env
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git commit --fixup=<commit>", which was to tweak the changes made
to the contents while keeping the original log message intact,
learned "--fixup=(amend|reword):<commit>", that can be used to
tweak both the message and the contents, and only the message,
respectively.
* cm/rebase-i-fixup-amend-reword:
doc/git-commit: add documentation for fixup=[amend|reword] options
t3437: use --fixup with options to create amend! commit
t7500: add tests for --fixup=[amend|reword] options
commit: add a reword suboption to --fixup
commit: add amend suboption to --fixup to create amend! commit
sequencer: export and rename subject_length()
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Follow-up fixes to "cm/rebase-i" topic.
* cm/rebase-i-updates:
doc/rebase -i: fix typo in the documentation of 'fixup' command
t/t3437: fixup the test 'multiple fixup -c opens editor once'
t/t3437: use named commits in the tests
t/t3437: simplify and document the test helpers
t/t3437: check the author date of fixed up commit
t/t3437: remove the dependency of 'expected-message' file from tests
t/t3437: fixup here-docs in the 'setup' test
t/lib-rebase: update the documentation of FAKE_LINES
rebase -i: clarify and fix 'fixup -c' rebase-todo help
sequencer: rename a few functions
sequencer: fixup the datatype of the 'flag' argument
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"rebase -i" is getting cleaned up and also enhanced.
* cm/rebase-i:
doc/git-rebase: add documentation for fixup [-C|-c] options
rebase -i: teach --autosquash to work with amend!
t3437: test script for fixup [-C|-c] options in interactive rebase
rebase -i: add fixup [-C | -c] command
sequencer: use const variable for commit message comments
sequencer: pass todo_item to do_pick_commit()
rebase -i: comment out squash!/fixup! subjects from squash message
sequencer: factor out code to append squash message
rebase -i: only write fixup-message when it's needed
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git repack" so far has been only capable of repacking everything
under the sun into a single pack (or split by size). A cleverer
strategy to reduce the cost of repacking a repository has been
introduced.
* tb/geometric-repack:
builtin/pack-objects.c: ignore missing links with --stdin-packs
builtin/repack.c: reword comment around pack-objects flags
builtin/repack.c: be more conservative with unsigned overflows
builtin/repack.c: assign pack split later
t7703: test --geometric repack with loose objects
builtin/repack.c: do not repack single packs with --geometric
builtin/repack.c: add '--geometric' option
packfile: add kept-pack cache for find_kept_pack_entry()
builtin/pack-objects.c: rewrite honor-pack-keep logic
p5303: measure time to repack with keep
p5303: add missing &&-chains
builtin/pack-objects.c: add '--stdin-packs' option
revision: learn '--no-kept-objects'
packfile: introduce 'find_kept_pack_entry()'
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Doc update.
* tb/push-simple-uses-branch-merge-config:
Documentation/git-push.txt: correct configuration typo
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The text says something called a "patch" is prepared one for each
commit, it is suitable for e-mail submission, and "am" is the
command to use it, but does not say what the "patch" really is.
The description in the page also refers to the "three-dash" line,
but it is unclear what it is, unless the reader is given a more
detailed overview of what the "patch" is.
Add a brief paragraph to give an overview of what the output looks
like.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove the rebase.useBuiltin setting and the now-obsolete
GIT_TEST_REBASE_USE_BUILTIN test flag.
This was left in place after my d03ebd411c6 (rebase: remove the
rebase.useBuiltin setting, 2019-03-18) to help anyone who'd used the
experimental flag and wanted to know that it was the default, or that
they should transition their test environment to use the builtin
rebase unconditionally.
It's been more than long enough for those users to get a headsup about
this. So remove all the scaffolding that was left inplace after
d03ebd411c6. I'm also removing the documentation entry, if anyone
still has this left in their configuration they can do some source
archaeology to figure out what it used to do, which makes more sense
than exposing every git user reading the documentation to this legacy
configuration switch.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Doc update.
* ps/update-ref-trans-hook-doc:
githooks.txt: clarify documentation on reference-transaction hook
githooks.txt: replace mentions of SHA-1 specific properties
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Doc cleanup.
* jr/doc-ignore-typofix:
doc: .gitignore documentation typofix
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Doc cleanup.
* dl/cat-file-doc-cleanup:
git-cat-file.txt: remove references to "sha1"
git-cat-file.txt: monospace args, placeholders and filenames
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"git log --format='...'" learned "%(describe)" placeholder.
* rs/pretty-describe:
archive: expand only a single %(describe) per archive
pretty: document multiple %(describe) being inconsistent
t4205: assert %(describe) test coverage
pretty: add merge and exclude options to %(describe)
pretty: add %(describe)
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"git stash show" learned to optionally show untracked part of the
stash.
* dl/stash-show-untracked:
stash show: learn stash.showIncludeUntracked
stash show: teach --include-untracked and --only-untracked
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Rename detection rework continues.
* en/ort-perf-batch-8:
diffcore-rename: compute dir_rename_guess from dir_rename_counts
diffcore-rename: limit dir_rename_counts computation to relevant dirs
diffcore-rename: compute dir_rename_counts in stages
diffcore-rename: extend cleanup_dir_rename_info()
diffcore-rename: move dir_rename_counts into dir_rename_info struct
diffcore-rename: add function for clearing dir_rename_count
Move computation of dir_rename_count from merge-ort to diffcore-rename
diffcore-rename: add a mapping of destination names to their indices
diffcore-rename: provide basic implementation of idx_possible_rename()
diffcore-rename: use directory rename guided basename comparisons
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A new configuration variable has been introduced to allow choosing
which version of the generation number gets used in the
commit-graph file.
* ds/commit-graph-generation-config:
commit-graph: use config to specify generation type
commit-graph: create local repository pointer
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Docfix.
* km/config-doc-typofix:
config.txt: add missing period
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Signed-off-by: Kyle Meyer <kyle@kyleam.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Charvi Mendiratta <charvi077@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Disable the recent mergetool's hideresolved feature by default for
backward compatibility and safety.
* jn/mergetool-hideresolved-is-optional:
doc: describe mergetool configuration in git-mergetool(1)
mergetool: do not enable hideResolved by default
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In the EXAMPLES section, git-push(1) says that 'git push origin' pushes
the current branch to the value of the 'remote.origin.merge'
configuration.
This wording (which dates back to b2ed944af7 (push: switch default from
"matching" to "simple", 2013-01-04)) is incorrect. There is no such
configuration as 'remote.<name>.merge'. This likely was originally
intended to read "branch.<name>.merge" instead.
Indeed, when 'push.default' is 'simple' (which is the default value, and
is applicable in this scenario per "without additional configuration"),
setup_push_upstream() dies if the branch's local name does not match
'branch.<name>.merge'.
Correct this long-standing typo to resolve some recent confusion on the
intended behavior of this example.
Reported-by: Adam Sharafeddine <adam.shrfdn@gmail.com>
Reported-by: Fabien Terrani <terranifabien@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In particular, this describes mergetool.hideResolved, which can help
users discover this setting (either because it may be useful to them
or in order to understand mergetool's behavior if they have forgotten
setting it in the past).
Tested by running
make -C Documentation git-mergetool.1
man Documentation/git-mergetool.1
and reading through the page.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When 98ea309b3f (mergetool: add hideResolved configuration,
2021-02-09) introduced the mergetool.hideResolved setting to reduce
the clutter in viewing non-conflicted sections of files in a
mergetool, it enabled it by default, explaining:
No adverse effects were noted in a small survey of popular mergetools[1]
so this behavior defaults to `true`.
In practice, alas, adverse effects do appear. A few issues:
1. No indication is shown in the UI that the base, local, and remote
versions shown have been modified by additional resolution. This
is inherent in the design: the idea of mergetool.hideResolved is to
convince a mergetool that expects pristine local, base, and remote
files to show partially resolved verisons of those files instead;
there is no additional source of information accessible to the
mergetool to see where the resolution has happened.
(By contrast, a mergetool generating the partial resolution from
conflict markers for itself would be able to hilight the resolved
sections with a different color.)
A user accustomed to seeing the files without partial resolution
gets no indication that this behavior has changed when they upgrade
Git.
2. If the computed merge did not line up the files correctly (for
example due to repeated sections in the file), the partially
resolved files can be misleading and do not have enough information
to reconstruct what happened and compute the correct merge result.
3. Resolving a conflict can involve information beyond the textual
conflict. For example, if the local and remote versions added
overlapping functionality in different ways, seeing the full
unresolved versions of each alongside the base gives information
about each side's intent that makes it possible to come up with a
resolution that combines those two intents. By contrast, when
starting with partially resolved versions of those files, one can
produce a subtly wrong resolution that includes redundant extra
code added by one side that is not needed in the approach taken
on the other.
All that said, a user wanting to focus on textual conflicts with
reduced clutter can still benefit from mergetool.hideResolved=true as
a way to deemphasize sections of the code that resolve cleanly without
requiring any changes to the invoked mergetool. The caveats described
above are reduced when the user has explicitly turned this on, because
then the user is aware of them.
Flip the default to 'false'.
Reported-by: Dana Dahlstrom <dahlstrom@google.com>
Helped-by: Seth House <seth@eseth.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Every %(describe) placeholder in $Format:...$ strings in files with the
attribute export-subst is expanded by calling git describe. This can
potentially result in a lot of such calls per archive. That's OK for
local repositories under control of the user of git archive, but could
be a problem for hosted repositories.
Expand only a single %(describe) placeholder per archive for now to
avoid denial-of-service attacks. We can make this limit configurable
later if needed, but let's start out simple.
Reported-by: Jeff King <peff@peff.net>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The previous commit teaches `git stash show --include-untracked`. It
may be desirable for a user to be able to always enable the
--include-untracked behavior. Teach the stash.showIncludeUntracked
config option which allows users to do this in a similar manner to
stash.showPatch.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Stash entries can be made with untracked files via
`git stash push --include-untracked`. However, because the untracked
files are stored in the third parent of the stash entry and not the
stash entry itself, running `git stash show` does not include the
untracked files as part of the diff.
With --include-untracked, untracked paths, which are recorded in the
third-parent if it exists, are shown in addition to the paths that have
modifications between the stash base and the working tree in the stash.
It is possible to manually craft a malformed stash entry where duplicate
untracked files in the stash entry will mask tracked files. We detect
and error out in that case via a custom unpack_trees() callback:
stash_worktree_untracked_merge().
Also, teach stash the --only-untracked option which only shows the
untracked files of a stash entry. This is similar to `git show stash^3`
but it is nice to provide a convenient abstraction for it so that users
do not have to think about the underlying implementation.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There were some early changes in the 2.31 cycle to optimize some setup
in diffcore-rename.c[1], some later changes to measure performance[2],
and finally some significant changes to improve rename detection
performance. The final one was merged with the note
Performance optimization work on the rename detection continues.
That works for the commit log, but feels misleading as a release note
since all the changes were within one cycle. Simplify this to just
Performance improvements for rename detection.
The former wording could be seen as hinting that more performance
improvements will come in 2.32, which is true, but we can just cover
those in the 2.32 release notes when the time comes.
[1] a5ac31b5b1 (Merge branch 'en/diffcore-rename', 2021-01-25)
[2] d3a035b055 (Merge branch 'en/merge-ort-perf', 2021-02-11)
[3] 12bd17521c (Merge branch 'en/diffcore-rename', 2021-03-01)
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Julien Richard <julien.richard@ubisoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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As part of the hash-transition, git can operate on more than just SHA-1
repositories. Replace "sha1"-specific documentation with hash-agnostic
terminology.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In modern documentation, args, placeholders and filenames are
monospaced. Apply monospace formatting to these objects.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The logic to handle "trailer" related placeholders in the
"--format=" mechanisms in the "log" family and "for-each-ref"
family is getting unified.
* hv/trailer-formatting:
ref-filter: use pretty.c logic for trailers
pretty.c: capture invalid trailer argument
pretty.c: refactor trailer logic to `format_set_trailers_options()`
t6300: use function to test trailer options
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Documentation update.
* hn/reftable-tables-doc-update:
doc/reftable: document how to handle windows
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The approach to "fsck" the incoming objects in "index-pack" is
attractive for performance reasons (we have them already in core,
inflated and ready to be inspected), but fundamentally cannot be
applied fully when we receive more than one pack stream, as a tree
object in one pack may refer to a blob object in another pack as
".gitmodules", when we want to inspect blobs that are used as
".gitmodules" file, for example. Teach "index-pack" to emit
objects that must be inspected later and check them in the calling
"fetch-pack" process.
* jt/transfer-fsck-across-packs:
fetch-pack: print and use dangling .gitmodules
fetch-pack: with packfile URIs, use index-pack arg
http-fetch: allow custom index-pack args
http: allow custom index-pack args
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The common code to deal with "chunked file format" that is shared
by the multi-pack-index and commit-graph files have been factored
out, to help codepaths for both filetypes to become more robust.
* ds/chunked-file-api:
commit-graph.c: display correct number of chunks when writing
chunk-format: add technical docs
chunk-format: restore duplicate chunk checks
midx: use 64-bit multiplication for chunk sizes
midx: use chunk-format read API
commit-graph: use chunk-format read API
chunk-format: create read chunk API
midx: use chunk-format API in write_midx_internal()
midx: drop chunk progress during write
midx: return success/failure in chunk write methods
midx: add num_large_offsets to write_midx_context
midx: add pack_perm to write_midx_context
midx: add entries to write_midx_context
midx: use context in write_midx_pack_names()
midx: rename pack_info to write_midx_context
commit-graph: use chunk-format write API
chunk-format: create chunk format write API
commit-graph: anonymize data in chunk_write_fn
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Performance optimization work on the rename detection continues.
* en/diffcore-rename:
merge-ort: call diffcore_rename() directly
gitdiffcore doc: mention new preliminary step for rename detection
diffcore-rename: guide inexact rename detection based on basenames
diffcore-rename: complete find_basename_matches()
diffcore-rename: compute basenames of source and dest candidates
t4001: add a test comparing basename similarity and content similarity
diffcore-rename: filter rename_src list when possible
diffcore-rename: no point trying to find a match better than exact
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Each %(describe) placeholder is expanded using a separate git describe
call. Their outputs depend on the tags present at the time, so there's
no consistency guarantee. Document that fact.
Reported-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The reference-transaction hook doesn't clearly document its scope and
what values it receives as input. Document it to make it less surprising
and clearly delimit its (current) scope.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The githooks(5) documentation states in several places that the hook
will receive a SHA-1 or hashes of 40 characters length. Given that we're
transitioning to a world where both SHA-1 and SHA-256 are supported,
this is inaccurate.
Fix the issue by replacing mentions of SHA-1 with "object name" and not
explicitly mentioning the hash size.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A previous commit noted that it is very common for people to move files
across directories while keeping their filename the same. The last few
commits took advantage of this and showed that we can accelerate rename
detection significantly using basenames; since files with the same
basename serve as likely rename candidates, we can check those first and
remove them from the rename candidate pool if they are sufficiently
similar.
Unfortunately, the previous optimization was limited by the fact that
the remaining basenames after exact rename detection are not always
unique. Many repositories have hundreds of build files with the same
name (e.g. Makefile, .gitignore, build.gradle, etc.), and may even have
hundreds of source files with the same name. (For example, the linux
kernel has 100 setup.c, 87 irq.c, and 112 core.c files. A repository at
$DAYJOB has a lot of ObjectFactory.java and Plugin.java files).
For these files with non-unique basenames, we are faced with the task of
attempting to determine or guess which directory they may have been
relocated to. Such a task is precisely the job of directory rename
detection. However, there are two catches: (1) the directory rename
detection code has traditionally been part of the merge machinery rather
than diffcore-rename.c, and (2) directory rename detection currently
runs after regular rename detection is complete. The 1st catch is just
an implementation issue that can be overcome by some code shuffling.
The 2nd requires us to add a further approximation: we only have access
to exact renames at this point, so we need to do directory rename
detection based on just exact renames. In some cases we won't have
exact renames, in which case this extra optimization won't apply. We
also choose to not apply the optimization unless we know that the
underlying directory was removed, which will require extra data to be
passed in to diffcore_rename_extended(). Also, even if we get a
prediction about which directory a file may have relocated to, we will
still need to check to see if there is a file in the predicted
directory, and then compare the two files to see if they meet the higher
min_basename_score threshold required for marking the two files as
renames.
This commit introduces an idx_possible_rename() function which will
do this directory rename detection for us and give us the index within
rename_dst of the resulting filename. For now, this function is
hardcoded to return -1 (not found) and just hooks up how its results
would be used once we have a more complete implementation in place.
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Junio C Hamano
Ævar Arnfjörð Bjarmason
Kyle Meyer
Charvi Mendiratta
Taylor Blau
Jonathan Nieder
René Scharfe
Denton Liu
Elijah Newren
Julien Richard
Patrick Steinhardt