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baf8ec8d3a (rebase -r: don't write .git/MERGE_MSG when
fast-forwarding, 2021-08-20) stopped reading the author script in
run_git_commit() when rewording a commit. This is normally safe
because "git commit --amend" preserves the authorship. However if the
user passes "--committer-date-is-author-date" then we need to read the
author date from the author script when rewording. Fix this regression
by tightening the check for when it is safe to skip reading the author
script.
Reported-by: Jonas Kittner <jonas.kittner@ruhr-uni-bochum.de>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If a rebase is started with a --strategy option other than "ort" or
"recursive" then "merge -c" does not allow the user to reword the
commit message.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When fast-forwarding we do not create a new commit so .git/MERGE_MSG
is not removed and can end up seeding the message of a commit made
after the rebase has finished. Avoid writing .git/MERGE_MSG when we
are fast-forwarding by writing the file after the fast-forward
checks. Note that there are no changes to the fast-forward code, it is
simply moved.
Note that the way this change is implemented means we no longer write
the author script when fast-forwarding either. I believe this is safe
for the reasons below but it is a departure from what we do when
fast-forwarding a non-merge commit. If we reword the merge then 'git
commit --amend' will keep the authorship of the commit we're rewording
as it ignores GIT_AUTHOR_* unless --reset-author is passed. It will
also export the correct GIT_AUTHOR_* variables to any hooks and we
already test the authorship of the reworded commit. If we are not
rewording then we no longer call spilt_ident() which means we are no
longer checking the commit author header looks sane. However this is
what we already do when fast-forwarding non-merge commits in
skip_unnecessary_picks() so I don't think we're breaking any promises
by not checking the author here.
Reported-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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None of the existing reword tests check that there are no uncommitted
changes when the editor is opened. Reuse the editor script from the
last commit to fix this omission.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If the user runs git log while rewording a commit it is confusing if
sometimes we're amending the commit that's being reworded and at other
times we're creating a new commit depending on whether we could
fast-forward or not[1]. For this reason the reword command ensures
that there are no uncommitted changes when rewording. The reword
command also allows the user to edit the todo list while the rebase is
paused. As 'merge -c' also rewords commits make it behave like reword
and add a test.
[1] https://lore.kernel.org/git/xmqqlfvu4be3.fsf@gitster-ct.c.googlers.com/T/#m133009cb91cf0917bcf667300f061178be56680a
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
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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Earlier "git log -m" was changed to always produce patch output,
which would break existing scripts, which has been reverted.
* jn/log-m-does-not-imply-p:
Revert 'diff-merges: let "-m" imply "-p"'
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Build fix.
* cb/many-alternate-optim-fixup:
object-file: use unsigned arithmetic with bit mask
object-store: avoid extra ';' from KHASH_INIT
oidtree: avoid nested struct oidtree_node
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33f379eee6 (make object_directory.loose_objects_subdir_seen a bitmap,
2021-07-07) replaced a wasteful 256-byte array with a 32-byte array
and bit operations. The mask calculation shifts a literal 1 of type
int left by anything between 0 and 31. UndefinedBehaviorSanitizer
doesn't like that and reports:
object-file.c:2477:18: runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
Make sure to use an unsigned 1 instead to avoid the issue.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This reverts commit f5bfcc823ba242a46e20fb6f71c9fbf7ebb222fe, which
made "git log -m" imply "--patch" by default. The logic was that
"-m", which makes diff generation for merges perform a diff against
each parent, has no use unless I am viewing the diff, so we could save
the user some typing by turning on display of the resulting diff
automatically. That wasn't expected to adversely affect scripts
because scripts would either be using a command like "git diff-tree"
that already emits diffs by default or would be combining -m with a
diff generation option such as --name-status. By saving typing for
interactive use without adversely affecting scripts in the wild, it
would be a pure improvement.
The problem is that although diff generation options are only relevant
for the displayed diff, a script author can imagine them affecting
path limiting. For example, I might run
git log -w --format=%H -- README
hoping to list commits that edited README, excluding whitespace-only
changes. In fact, a whitespace-only change is not TREESAME so the use
of -w here has no effect (since we don't apply these diff generation
flags to the diff_options struct rev_info::pruning used for this
purpose), but the documentation suggests that it should work
Suppose you specified foo as the <paths>. We shall call
commits that modify foo !TREESAME, and the rest TREESAME. (In
a diff filtered for foo, they look different and equal,
respectively.)
and a script author who has not tested whitespace-only changes
wouldn't notice.
Similarly, a script author could include
git log -m --first-parent --format=%H -- README
to filter the first-parent history for commits that modified README.
The -m is a no-op but it reflects the script author's intent. For
example, until 1e20a407fe2 (stash list: stop passing "-m" to "git
log", 2021-05-21), "git stash list" did this.
As a result, we can't safely change "-m" to imply "-p" without fear of
breaking such scripts. Restore the previous behavior.
Noticed because Rust's src/bootstrap/bootstrap.py made use of this
same construct: https://github.com/rust-lang/rust/pull/87513. That
script has been updated to omit the unnecessary "-m" option, but we
can expect other scripts in the wild to have similar expectations.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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cf2dc1c238 (speed up alt_odb_usable() with many alternates, 2021-07-07)
introduces a KHASH_INIT invocation with a trailing ';', which while
commonly expected will trigger warnings with pedantic on both
clang[-Wextra-semi] and gcc[-Wpedantic], because that macro has already
a semicolon and is meant to be invoked without one.
while fixing the macro would be a worthy solution (specially considering
this is a common recurring problem), remove the extra ';' for now to
minimize churn.
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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92d8ed8ac1 (oidtree: a crit-bit tree for odb_loose_cache, 2021-07-07)
adds a struct oidtree_node that contains only an n field with a
struct cb_node.
unfortunately, while building in pedantic mode witch clang 12 (as well
as a similar error from gcc 11) it will show:
oidtree.c:11:17: error: 'n' may not be nested in a struct due to flexible array member [-Werror,-Wflexible-array-extensions]
struct cb_node n;
^
because of a constrain coded in ISO C 11 6.7.2.1¶3 that forbids using
structs that contain a flexible array as part of another struct.
use a strict cb_node directly instead.
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@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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* cb/t7508-regexp-fix:
t7508: avoid non POSIX BRE
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* ab/pickaxe-pcre2:
diff: --pickaxe-all typofix
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* fc/disable-checkwinsize:
test: fix for COLUMNS and bash 5
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Since c49a177bec (test-lib.sh: set COLUMNS=80 for --verbose
repeatability, 2021-06-29) multiple tests have been failing when using
bash 5 because checkwinsize is enabled by default, therefore COLUMNS is
reset using TIOCGWINSZ even for non-interactive shells.
It's debatable whether or not bash should even be doing that, but for
now we can avoid this undesirable behavior by disabling this option.
Reported-by: Fabian Stelzer <fabian.stelzer@campoint.net>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
[jc: with SZEDER Gábor's suggestion to do this before setting COLUMNS]
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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Windows rmdir() equivalent behaves differently from POSIX ones in
that when used on a symbolic link that points at a directory, the
target directory gets removed, which has been corrected.
* tb/mingw-rmdir-symlink-to-directory:
mingw: align symlinks-related rmdir() behavior with Linux
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Doc mark-up fix.
* ar/doc-markup-fix:
Documentation: render special characters correctly
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Portability test update.
* ab/getcwd-test:
t0001: fix broken not-quite getcwd(3) test in bed67874e2
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Code simplification.
* rs/use-fspathhash:
use fspathhash() everywhere
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The local changes stashed by "git merge --autostash" were lost when
the merge failed in certain ways, which has been corrected.
* pb/merge-autostash-more:
merge: apply autostash if merge strategy fails
merge: apply autostash if fast-forward fails
Documentation: define 'MERGE_AUTOSTASH'
merge: add missing word "strategy" to a message
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Further optimization on "merge -sort" backend.
* en/ort-perf-batch-14:
merge-ort: restart merge with cached renames to reduce process entry cost
merge-ort: avoid recursing into directories when we don't need to
merge-ort: defer recursing into directories when merge base is matched
merge-ort: add a handle_deferred_entries() helper function
merge-ort: add data structures for allowable trivial directory resolves
merge-ort: add some more explanations in collect_merge_info_callback()
merge-ort: resolve paths early when we have sufficient information
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"git checkout" and "git commit" learn to work without unnecessarily
expanding sparse indexes.
* ds/commit-and-checkout-with-sparse-index:
unpack-trees: resolve sparse-directory/file conflicts
t1092: document bad 'git checkout' behavior
checkout: stop expanding sparse indexes
sparse-index: recompute cache-tree
commit: integrate with sparse-index
p2000: compress repo names
p2000: add 'git checkout -' test and decrease depth
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Reorganize and update the SubmitingPatches document.
* ab/update-submitting-patches:
SubmittingPatches: replace discussion of Travis with GitHub Actions
SubmittingPatches: move discussion of Signed-off-by above "send"
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Leak plugging.
* ah/plugleaks:
reset: clear_unpack_trees_porcelain to plug leak
builtin/rebase: fix options.strategy memory lifecycle
builtin/merge: free found_ref when done
builtin/mv: free or UNLEAK multiple pointers at end of cmd_mv
convert: release strbuf to avoid leak
read-cache: call diff_setup_done to avoid leak
ref-filter: also free head for ATOM_HEAD to avoid leak
diffcore-rename: move old_dir/new_dir definition to plug leak
builtin/for-each-repo: remove unnecessary argv copy to plug leak
builtin/submodule--helper: release unused strbuf to avoid leak
environment: move strbuf into block to plug leak
fmt-merge-msg: free newly allocated temporary strings when done
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Rewrite of "git submodule" in C continues.
* ar/submodule-add:
submodule: drop unused sm_name parameter from show_fetch_remotes()
submodule--helper: introduce add-clone subcommand
submodule--helper: refactor module_clone()
submodule: prefix die messages with 'fatal'
t7400: test failure to add submodule in tracked path
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When I was fixing fuzzies as I updating po/id.po for 2.33.0 l10n round,
I noticed a triple-dash typo (--pickaxe-all) at diff.c, which according
to git-diff(1) manpage, the correct option name should be --pickaxe-all.
Fix the typo.
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Acked-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When performing a rebase, rmdir() is called on the folder .git/logs. On
Unix rmdir() exits without deleting anything in case .git/logs is a
symbolic link but the equivalent functions on Windows (_rmdir, _wrmdir
and RemoveDirectoryW) do not behave the same and remove the folder if it
is symlinked even if it is not empty.
This creates issues when folders in .git/ are symlinks which is
especially the case when git-repo[1] is used: It replaces `.git/logs/`
with a symlink.
One such issue is that the _target_ of that symlink is removed e.g.
during a `git rebase`, where `delete_reflog("REBASE_HEAD")` will not
only try to remove `.git/logs/REBASE_HEAD` but then recursively try to
remove the parent directories until an error occurs, a technique that
obviously relies on `rmdir()` refusing to remove a symlink.
This was reported in https://github.com/git-for-windows/git/issues/2967.
This commit updates mingw_rmdir() so that its behavior is the same as
Linux rmdir() in case of symbolic links.
To verify that Git does not regress on the reported issue, this patch
adds a regression test for the `git rebase` symptom, even if the same
`rmdir()` behavior is quite likely to cause potential problems in other
Git commands as well.
[1]: git-repo is a python tool built on top of Git which helps manage
many Git repositories. It stores all the .git/ folders in a central
place by taking advantage of symbolic links.
More information: https://gerrit.googlesource.com/git-repo/
Signed-off-by: Thomas Bétous <tomspycell@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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24c30e0b6 (wt-status: tolerate dangling marks, 2020-09-01) adds a test
that uses a BRE which breaks at least with OpenBSD's grep.
switch to an ERE as it is done for similar checks and while at it, remove
the now obsolete test_i18ngrep call.
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@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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A race between repacking and using pack bitmaps has been corrected.
* jk/check-pack-valid-before-opening-bitmap:
pack-bitmap: check pack validity when opening bitmap
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"git read-tree" had a codepath where blobs are fetched one-by-one
from the promisor remote, which has been corrected to fetch in bulk.
* jt/bulk-prefetch:
cache-tree: prefetch in partial clone read-tree
unpack-trees: refactor prefetching code
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Documentation fix for "git pull --rebase=no".
* fc/pull-no-rebase-merges-theirs-into-ours:
doc: pull: fix rebase=false documentation
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"git bundle" gained more test coverage.
* ab/bundle-tests:
bundle tests: use test_cmp instead of grep
bundle tests: use ">file" not ": >file"
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Test update.
* ps/perf-with-separate-output-directory:
perf: fix when running with TEST_OUTPUT_DIRECTORY
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CI update.
* js/ci-check-whitespace-updates:
ci(check-whitespace): restrict to the intended commits
ci(check-whitespace): stop requiring a read/write token
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Documentation around GIT_CONFIG has been updated.
* jk/config-env-doc:
doc/git-config: simplify "override" advice for FILES section
doc/git-config: clarify GIT_CONFIG environment variable
doc/git-config: explain --file instead of referring to GIT_CONFIG
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Doc update.
* pb/submodule-recurse-doc:
doc: clarify description of 'submodule.recurse'
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In-code comment update.
* tb/bitmap-type-filter-comment-fix:
pack-bitmap: clarify comment in filter_bitmap_exclude_type()
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cf2dc1c238 (speed up alt_odb_usable() with many alternates, 2021-07-07)
introduced the function fspathhash() for calculating path hashes while
respecting the configuration option core.ignorecase. Call it instead of
open-coding it; the resulting code is shorter and less repetitive.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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With a54e938e5b (strbuf: support long paths w/o read rights in
strbuf_getcwd() on FreeBSD, 2017-03-26) we had t0001 break on systems
like OpenBSD and AIX whose getcwd(3) has standard (but not like glibc
et al) behavior.
This was partially fixed in bed67874e2 (t0001: skip test with
restrictive permissions if getpwd(3) respects them, 2017-08-07).
The problem with that fix is that while its analysis of the problem is
correct, it doesn't actually call getcwd(3), instead it invokes "pwd
-P". There is no guarantee that "pwd -P" is going to call getcwd(3),
as opposed to e.g. being a shell built-in.
On AIX under both bash and ksh this test breaks because "pwd -P" will
happily display the current working directory, but getcwd(3) called by
the "git init" we're testing here will fail to get it.
I checked whether clobbering the $PWD environment variable would
affect it, and it didn't. Presumably these shells keep track of their
working directory internally.
There's possible follow-up work here in teaching strbuf_getcwd() to
get the working directory with whatever method "pwd" uses on these
platforms. See [1] for a discussion of that, but let's take the easy
way out here and just skip these tests by fixing the
GETCWD_IGNORES_PERMS prerequisite to match the limitations of
strbuf_getcwd().
1. https://lore.kernel.org/git/b650bef5-d739-d98d-e9f1-fa292b6ce982@web.de/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Three hyphens are rendered verbatim, so "--" has to be used to produce a
dash. There is no double arrow ("<->" is rendered as "<→"), so a left
and right arrow "<-->" have to be combined for that.
So fix asciidoc output for special characters. This is similar to fixes
in commit de82095a95 (doc hash-function-transition: fix asciidoc output,
2021-02-05).
Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Acked-by: Jeff King <peff@peff.net>
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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"TEST_OUTPUT_DIRECTORY=there make test" failed to work, which has
been corrected.
* ps/t0000-output-directory-fix:
t0000: fix test if run with TEST_OUTPUT_DIRECTORY
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The code that gives an error message in "git multi-pack-index" when
no subcommand is given tried to print a NULL pointer as a strong,
which has been corrected.
* tb/reverse-midx:
multi-pack-index: fix potential segfault without sub-command
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Debugging aid.
* hn/refs-debug-empty-prefix:
refs/debug: quote prefix
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The completion support used to offer alternate spelling of options
that exist only for compatibility, which has been corrected.
* pb/dont-complete-aliased-options:
parse-options: don't complete option aliases by default
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Documentation on "git diff -l<n>" and diff.renameLimit have been
updated, and the defaults for these limits have been raised.
* en/rename-limits-doc:
rename: bump limit defaults yet again
diffcore-rename: treat a rename_limit of 0 as unlimited
doc: clarify documentation for rename/copy limits
diff: correct warning message when renameLimit exceeded
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Phillip Wood
Junio C Hamano
René Scharfe
Jonathan Nieder
Carlo Marcelo Arenas Belón
Felipe Contreras
Bagas Sanjaya
Thomas Bétous
Ævar Arnfjörð Bjarmason
Andrei Rybak