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Add a diff driver for Scheme-like languages which recognizes top level
and local `define` forms, whether it is a function definition, binding,
syntax definition or a user-defined `define-xyzzy` form.
Also supports R6RS `library` forms, `module` forms along with class and
struct declarations used in Racket (PLT Scheme).
Alternate "def" syntax such as those in Gerbil Scheme are also
supported, like defstruct, defsyntax and so on.
The rationale for picking `define` forms for the hunk headers is because
it is usually the only significant form for defining the structure of
the program, and it is a common pattern for schemers to have local
function definitions to hide their visibility, so it is not only the top
level `define`'s that are of interest. Schemers also extend the language
with macros to provide their own define forms (for example, something
like a `define-test-suite`) which is also captured in the hunk header.
Since it is common practice to extend syntax with variants of a form
like `module+`, `class*` etc, those have been supported as well.
The word regex is a best-effort attempt to conform to R7RS[1] valid
identifiers, symbols and numbers.
[1] https://small.r7rs.org/attachment/r7rs.pdf (section 2.1)
Signed-off-by: Atharva Raykar <raykar.ath@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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"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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The http codepath learned to let the credential layer to cache the
password used to unlock a certificate that has successfully been
used.
* js/http-pki-credential-store:
http: drop the check for an empty proxy password before approving
http: store credential when PKI auth is used
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Reorganize Makefile to allow building git.o and other essential
objects without extra stuff needed only for testing.
* ab/make-cleanup:
Makefile: add {program,xdiff,test,git,fuzz}-objs & objects targets
Makefile: split OBJECTS into OBJECTS and GIT_OBJS
Makefile: sort OBJECTS assignment for subsequent change
Makefile: split up long OBJECTS line
Makefile: guard against TEST_OBJS in the environment
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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 diff-index" codepath has been taught to trust fsmonitor status
to reduce number of lstat() calls.
* nk/diff-index-fsmonitor:
fsmonitor: add perf test for git diff HEAD
fsmonitor: add assertion that fsmonitor is valid to check_removed
fsmonitor: skip lstat deletion check during git diff-index
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GIT_TEST_FAIL_PREREQS is a mechanism to skip test pieces with
prerequisites to catch broken tests that depend on the side effects
of optional pieces, but did not work at all when negative
prerequisites were involved.
* jk/fail-prereq-testfix:
t: annotate !PTHREADS tests with !FAIL_PREREQS
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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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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git -c core.bare=false clone --bare ..." would have segfaulted,
which has been corrected.
* bc/clone-bare-with-conflicting-config:
builtin/init-db: handle bare clones when core.bare set to false
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Code clean-up.
* jk/filter-branch-sha256:
filter-branch: drop $_x40 glob
filter-branch: drop multiple-ancestor warning
t7003: test ref rewriting explicitly
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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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* rr/mailmap-entry-self:
Add entry for Ramkumar Ramachandra
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Doc cleanup.
* jr/doc-ignore-typofix:
doc: .gitignore documentation typofix
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Test cleanup.
* sv/t9801-test-path-is-file-cleanup:
t9801: replace test -f with test_path_is_file
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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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Updates to memory allocation code around the use of pcre2 library.
* ab/grep-pcre2-allocfix:
grep/pcre2: move definitions of pcre2_{malloc,free}
grep/pcre2: move back to thread-only PCREv2 structures
grep/pcre2: actually make pcre2 use custom allocator
grep/pcre2: use pcre2_maketables_free() function
grep/pcre2: use compile-time PCREv2 version test
grep/pcre2: add GREP_PCRE2_DEBUG_MALLOC debug mode
grep/pcre2: prepare to add debugging to pcre2_malloc()
grep/pcre2: correct reference to grep_init() in comment
grep/pcre2: drop needless assignment to NULL
grep/pcre2: drop needless assignment + assert() on opt->pcre2
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Perf test update to work better in secondary worktrees.
* jk/perf-in-worktrees:
t/perf: avoid copying worktree files from test repo
t/perf: handle worktrees as test repos
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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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Update C code that sets a few configuration variables when a remote
is configured so that it spells configuration variable names in the
canonical camelCase.
* ab/remote-write-config-in-camel-case:
remote: write camel-cased *.pushRemote on rename
remote: add camel-cased *.tagOpt key, like clone
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We had a code to diagnose and die cleanly when a required
clean/smudge filter is missing, but an assert before that
unnecessarily fired, hiding the end-user facing die() message.
* mt/cleanly-die-upon-missing-required-filter:
convert: fail gracefully upon missing clean cmd on required filter
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It does not make sense to make ".gitattributes", ".gitignore" and
".mailmap" symlinks, as they are supposed to be usable from the
object store (think: bare repositories where HEAD:.mailmap etc. are
used). When these files are symbolic links, we used to read the
contents of the files pointed by them by mistake, which has been
corrected.
* jk/open-dotgitx-with-nofollow:
mailmap: do not respect symlinks for in-tree .mailmap
exclude: do not respect symlinks for in-tree .gitignore
attr: do not respect symlinks for in-tree .gitattributes
exclude: add flags parameter to add_patterns()
attr: convert "macro_ok" into a flags field
add open_nofollow() helper
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Fix a corner case bug in "git mv" on case insensitive systems,
which was introduced in 2.29 timeframe.
* tb/git-mv-icase-fix:
git mv foo FOO ; git mv foo bar gave an assert
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code cleanup.
* rs/xcalloc-takes-nelem-first:
fix xcalloc() argument order
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Update insn in Makefile comments to run fuzz-all target.
* ah/make-fuzz-all-doc-update:
Makefile: update 'make fuzz-all' docs to reflect modern clang
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Unused code removal.
* jk/slimmed-down:
vcs-svn: remove header files as well
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CALLOC_ARRAY() macro replaces many uses of xcalloc().
* rs/calloc-array:
cocci: allow xcalloc(1, size)
use CALLOC_ARRAY
git-compat-util.h: drop trailing semicolon from macro definition
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Fix macros that can silently inject unintended null-statements.
* rs/avoid-null-statement-after-macro-call:
mem-pool: drop trailing semicolon from macro definition
block-sha1: drop trailing semicolon from macro definition
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Docfix.
* km/config-doc-typofix:
config.txt: add missing period
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Test fix.
* jt/clone-unborn-head:
t5606: run clone branch name test with protocol v2
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The data structure used by fsmonitor interface was not properly
duplicated during an in-core merge, leading to use-after-free etc.
* js/fsmonitor-unpack-fix:
fsmonitor: do not forget to release the token in `discard_index()`
fsmonitor: fix memory corruption in some corner cases
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"git bisect" reimplemented more in C during 2.30 timeframe did not
take an annotated tag as a good/bad endpoint well. This regression
has been corrected.
* jk/bisect-peel-tag-fix:
bisect: peel annotated tags to commits
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The fsmonitor interface read from its input without making sure
there is something to read from. This bug is new in 2.31
timeframe.
* jh/fsmonitor-prework:
fsmonitor: avoid global-buffer-overflow READ when checking trivial response
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Code clean-up.
* jc/calloc-fix:
xcalloc: use CALLOC_ARRAY() when applicable
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When 'git pack-objects --stdin-packs' encounters a commit in a pack, it
marks it as a starting point of a best-effort reachability traversal
that is used to populate the name-hash of the objects listed in the
given packs.
The traversal expects that it should be able to walk the ancestors of
all commits in a pack without issue. Ordinarily this is the case, but it
is possible to having missing parents from an unreachable part of the
repository. In that case, we'd consider any missing objects in the
unreachable portion of the graph to be junk.
This should be handled gracefully: since the traversal is best-effort
(i.e., we don't strictly need to fill in all of the name-hash fields),
we should simply ignore any missing links.
This patch does that (by setting the 'ignore_missing_links' bit on the
rev_info struct), and ensures we don't regress in the future by adding a
test which demonstrates this case.
It is a little over-eager, since it will also ignore missing links in
reachable parts of the packs (which would indicate a corrupted
repository), but '--stdin-packs' is explicitly *not* about reachability.
So this step isn't making anything worse for a repository which contains
packs missing reachable objects (since we never drop objects with
'--stdin-packs').
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Some tests in t5300 and t7810 expect us to complain about a "--threads"
argument when Git is compiled without pthread support. Running these
under GIT_TEST_FAIL_PREREQS produces a confusing failure: we pretend to
the tests that there is no pthread support, so they expect the warning,
but of course the actual build is perfectly happy to respect the
--threads argument.
We never noticed before the recent a926c4b904 (tests: remove most uses
of C_LOCALE_OUTPUT, 2021-02-11), because the tests also were marked as
requiring the C_LOCALE_OUTPUT prerequisite. Which means they'd never
have run in FAIL_PREREQS mode, since it would always pretend that the
locale prereq was not satisfied.
These tests can't possibly work in this mode; it is a mismatch between
what the tests expect and what the build was told to do. So let's just
mark them to be skipped, using the special prereq introduced by
dfe1a17df9 (tests: add a special setup where prerequisites fail,
2019-05-13).
Reported-by: Son Luong Ngoc <sluongng@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Update the xargs call so that if your large repo contains
symlinks, test-tool chmtime failure does not end the script.
On Linux
Test this tree upstream/master
---------------------------------------------------------------------------------------------------------
7519.4: status (fsmonitor=fsmonitor-watchman) 0.52(0.43+0.10) 0.53(0.49+0.05) +1.9%
7519.5: status -uno (fsmonitor=fsmonitor-watchman) 0.21(0.15+0.07) 0.22(0.13+0.09) +4.8%
7519.6: status -uall (fsmonitor=fsmonitor-watchman) 1.65(0.93+0.71) 1.69(1.03+0.65) +2.4%
7519.7: status (dirty) (fsmonitor=fsmonitor-watchman) 11.99(11.34+1.58) 11.95(11.02+1.79) -0.3%
7519.8: diff (fsmonitor=fsmonitor-watchman) 0.25(0.17+0.26) 0.25(0.18+0.26) +0.0%
7519.9: diff HEAD (fsmonitor=fsmonitor-watchman) 0.39(0.25+0.34) 0.89(0.35+0.74) +128.2%
7519.10: diff -- 0_files (fsmonitor=fsmonitor-watchman) 0.16(0.13+0.04) 0.16(0.12+0.05) +0.0%
7519.11: diff -- 10_files (fsmonitor=fsmonitor-watchman) 0.16(0.12+0.05) 0.16(0.12+0.05) +0.0%
7519.12: diff -- 100_files (fsmonitor=fsmonitor-watchman) 0.16(0.12+0.05) 0.16(0.12+0.05) +0.0%
7519.13: diff -- 1000_files (fsmonitor=fsmonitor-watchman) 0.16(0.11+0.06) 0.16(0.12+0.05) +0.0%
7519.14: diff -- 10000_files (fsmonitor=fsmonitor-watchman) 0.18(0.13+0.06) 0.17(0.10+0.08) -5.6%
7519.15: add (fsmonitor=fsmonitor-watchman) 2.25(1.53+0.68) 2.25(1.47+0.74) +0.0%
7519.18: status (fsmonitor=disabled) 0.88(0.73+1.03) 0.89(0.67+1.08) +1.1%
7519.19: status -uno (fsmonitor=disabled) 0.45(0.43+0.89) 0.45(0.34+0.98) +0.0%
7519.20: status -uall (fsmonitor=disabled) 1.88(1.16+1.58) 1.88(1.22+1.51) +0.0%
7519.21: status (dirty) (fsmonitor=disabled) 7.53(7.05+2.11) 7.53(6.98+2.04) +0.0%
7519.22: diff (fsmonitor=disabled) 0.42(0.37+0.92) 0.42(0.38+0.91) +0.0%
7519.23: diff HEAD (fsmonitor=disabled) 0.44(0.41+0.90) 0.44(0.40+0.91) +0.0%
7519.24: diff -- 0_files (fsmonitor=disabled) 0.13(0.09+0.05) 0.13(0.09+0.05) +0.0%
7519.25: diff -- 10_files (fsmonitor=disabled) 0.13(0.10+0.04) 0.13(0.10+0.04) +0.0%
7519.26: diff -- 100_files (fsmonitor=disabled) 0.13(0.09+0.05) 0.13(0.10+0.04) +0.0%
7519.27: diff -- 1000_files (fsmonitor=disabled) 0.13(0.09+0.06) 0.13(0.09+0.05) +0.0%
7519.28: diff -- 10000_files (fsmonitor=disabled) 0.14(0.11+0.05) 0.14(0.10+0.05) +0.0%
7519.29: add (fsmonitor=disabled) 2.43(1.61+1.64) 2.43(1.69+1.57) +0.0%
On linux (2.29.2 vs w/ this patch):
nipunn@nipunn-dbx:~/src/server3$ strace -f -c git diff 2>&1 | grep lstat
0.04 0.000063 3 20 6 lstat
nipunn@nipunn-dbx:~/src/server3$ strace -f -c git diff HEAD 2>&1 | grep lstat
94.98 5.242262 10 523783 13 lstat
nipunn@nipunn-dbx:~/src/server3$ strace -f -c ../git/bin-wrappers/git diff 2>&1 | grep lstat
0.38 0.000032 5 7 3 lstat
nipunn@nipunn-dbx:~/src/server3$ strace -f -c ../git/bin-wrappers/git diff HEAD 2>&1 | grep lstat
99.44 0.741892 9 81634 10 lstat
On mac (2.29.2 vs w/ this patch):
nipunn-mbp:server nipunn$ sudo dtruss -L -f -c git diff 2>&1 | grep "^lstat64 "
lstat64 8
nipunn-mbp:server nipunn$ sudo dtruss -L -f -c git diff HEAD 2>&1 | grep "^lstat64 "
lstat64 120242
nipunn-mbp:server nipunn$ sudo dtruss -L -f -c ../git/bin-wrappers/git diff 2>&1 | grep "^lstat64 "
lstat64 4
nipunn-mbp:server nipunn$ sudo dtruss -L -f -c ../git/bin-wrappers/git diff HEAD 2>&1 | grep "^lstat64 "
lstat64 4497
There are still a bunch of lstats - on directories, but not every file. Progress!
Signed-off-by: Nipunn Koorapati <nipunn@dropbox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Validate that fsmonitor is valid to futureproof against bugs where
check_removed might be called from places that haven't refreshed.
Signed-off-by: Nipunn Koorapati <nipunn@dropbox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Teach git to honor fsmonitor rather than issuing an lstat
when checking for dirty local deletes. Eliminates O(files)
lstats during `git diff HEAD`
Signed-off-by: Nipunn Koorapati <nipunn@dropbox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In 56c6910028a (fsmonitor: change last update timestamp on the
index_state to opaque token, 2020-01-07), we forgot to adjust
`discard_index()` to release the "last-update" token: it is no longer a
64-bit number, but a free-form string that has been allocated.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Atharva Raykar
Junio C Hamano
Taylor Blau
Jeff King
Nipunn Koorapati
Johannes Schindelin