Now that we have a way to export stashes to a ref, let's provide a way
to import them from such a ref back to the stash. This works much the
way the export code does, except that we strip off the first parent
chain commit and then store each resulting commit back to the stash.
We don't clear the stash first and instead add the specified stashes to
the top of the stash. This is because users may want to export just a
few stashes, such as to share a small amount of work in progress with a
colleague, and it would be undesirable for the receiving user to lose
all of their data. For users who do want to replace the stash, it's
easy to do to: simply run "git stash clear" first.
We specifically rely on the fact that we'll produce identical stash
commits on both sides in our tests. This provides a cheap,
straightforward check for our tests and also makes it easy for users to
see if they already have the same data in both repositories.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A common user problem is how to sync in-progress work to another
machine. Users currently must use some sort of transfer of the working
tree, which poses security risks and also necessarily causes the index
to become dirty. The experience is suboptimal and frustrating for
users.
A reasonable idea is to use the stash for this purpose, but the stash is
stored in the reflog, not in a ref, and as such it cannot be pushed or
pulled. This also means that it cannot be saved into a bundle or
preserved elsewhere, which is a problem when using throwaway development
environments.
In addition, users often want to replicate stashes across machines, such
as when they must use multiple machines or when they use throwaway dev
environments, such as those based on the Devcontainer spec, where they
might otherwise lose various in-progress work.
Let's solve this problem by allowing the user to export the stash to a
ref (or, to just write it into the repository and print the hash, à la
git commit-tree). Introduce git stash export, which writes a chain of
commits where the first parent is always a chain to the previous stash,
or to a single, empty commit (for the final item) and the second is the
stash commit normally written to the reflog.
Iterate over each stash from top to bottom, looking up the data for each
one, and then create the chain from the single empty commit back up in
reverse order. Generate a predictable empty commit so our behavior is
reproducible. Create a useful commit message, preserving the author and
committer information, to help users identify stash commits when viewing
them as normal commits.
If the user has specified specific stashes they'd like to export
instead, use those instead of iterating over all of the stashes.
As part of this, specifically request quiet behavior when looking up the
OID for a revision because we will eventually hit a revision that
doesn't exist and we don't want to die when that occurs.
When exporting stashes, be sure to verify that they look like valid
stashes and don't contain invalid data. This will help avoid failures
on import or problems due to attempting to export invalid refs that are
not stashes.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We allow several special forms of stash names in this code. In the
future, we'll want to allow these same forms without parsing a stash
commit, so let's refactor this code out into a function for reuse.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A reasonable person looking at the signature and usage of get_oid and
friends might conclude that in the event of an error, it always returns
-1. However, this is not the case. Instead, get_oid_basic dies if we
go too far back into the history of a reflog (or, when quiet, simply
exits).
This is not especially useful, since in many cases, we might want to
handle this error differently. Let's add a flag here to make it just
return -1 like elsewhere in these code paths.
Note that we cannot make this behavior the default, since we have many
other codepaths that rely on the existing behavior, including in tests.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since 6547d1c9 (bswap.h: add support for built-in bswap
functions, 2025-04-23) tweaked the way the bswap32/64 macros are
defined, on platforms with __builtin_bswap32/64 supported, the
bswap32/64 macros are defined even on big endian platforms.
However the rest of this file assumes that bswap32/64() are defined
ONLY on little endian machines and uses that assumption to redefine
ntohl/ntohll macros. The said commit broke t4014-format-patch.sh test,
among many others on s390x.
Revert the commit.
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We have mentioned this in various reviews, but I didn't see it
mentioned in the CodingGuildelines document. Let's add it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
• Replace with phrases that are more standard (“all-or-nothing”
instead of “-none”)
• Add coordinating words that make it less likely for you to trip
over the sentence (“*that* "gc" can do”)
• Use “SMTP” instead of both SMTP and smtp
• Don’t mention `git fsck --reference` since the previous release
was not affected by this minor bug. Also say “errored out” since
the git-refs(1) bug was there in v2.48.0 as well
• Use the more widespread “linked” instead of “secondary worktree”
Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
It is quite helpful to know what Coverity said, exactly, in case it
fails to analyze the code.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When I added the Coverity workflow in a56b6230d0b1 (ci: add a GitHub
workflow to submit Coverity scans, 2023-09-25), I merely converted an
Azure Pipeline definition that had been running successfully for ages.
In the meantime, the current Coverity documentation describes a very
different way to install the analysis tool, recommending to add the
`bin/` directory to the _end_ of `PATH` (when originally, IIRC, it was
recommended to add it to the _beginning_ of the `PATH`).
This is crucial! The reason is that the current incarnation of the
Windows variant of Coverity's analysis tools come with a _lot_ of DLL
files in their `bin/` directory, some of them interferring rather badly
with the `gcc.exe` in Git for Windows' SDK that we use to run the
Coverity build. The symptom is a cryptic error message:
make: *** [Makefile:2960: headless-git.o] Error 1
make: *** Waiting for unfinished jobs....
D:\git-sdk-64-minimal\mingw64\bin\windres.exe: preprocessing failed.
make: *** [Makefile:2679: git.res] Error 1
make: *** [Makefile:2893: git.o] Error 1
make: *** [Makefile:2893: builtin/add.o] Error 1
Attempting to detect unconfigured compilers in build
|0----------25-----------50----------75---------100|
****************************************************
Warning: Build command make.exe exited with code 2. Please verify that the build completed successfully.
Warning: Emitted 0 C/C++ compilation units (0%) successfully
0 C/C++ compilation units (0%) are ready for analysis
For more details, please look at:
D:/a/git/git/cov-int/build-log.txt
The log (which the workflow is currently not configured to reveal) then
points out that the `windows.h` header cannot be found, which is _still_
not very helpful. The underlying root cause is that the `gcc.exe` in Git
for Windows' SDK determines the location of the header files via the
location of certain DLL files, and finding the "wrong" ones first on the
`PATH` misleads that logic.
Let's fix this problem by following Coverity's current recommendation
and append the `bin/` directory in which `cov-int` can be found to the
_end_ of `PATH`.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When creating a stash, Git uses the current branch name
of the superproject to construct the stash commit message.
However, in repositories with submodules,
the message may mistakenly display the submodule branch name instead.
This is because `refs_resolve_ref_unsafe()` returns a pointer to a static buffer.
Subsequent calls to the same function overwrite the buffer,
corrupting the originally fetched `branch_name` used for the stash message.
Use `xstrdup()` to duplicate the branch name immediately after resolving it,
so that later buffer overwrites do not affect the stash message.
Signed-off-by: K Jayatheerth <jayatheerthkulkarni2005@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Refactor "preload-index.c" to remove the dependency on the global
'the_repository'. Replace the occurrences of 'the_repository' with
'index->repo' and thus remove the definition '#define
USE_THE_REPOSITORY_VARIABLE'.
Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Ghanshyam Thakkar <shyamthakkar001@gmail.com>
Signed-off-by: Ayush Chandekar <ayu.chandekar@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The global variable 'core_preload_index' is used in a single function
named 'preload_index()' in "preload-index.c". Move its declaration inside
that function, removing unnecessary global state.
This change is part of an ongoing effort to eliminate global variables,
improve modularity and help libify the codebase.
Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Ghanshyam Thakkar <shyamthakkar001@gmail.com>
Signed-off-by: Ayush Chandekar <ayu.chandekar@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In revision.c:prepare_show_merge(), we allocated an array in prune
but forget to free it. Since parse_pathspec is not responsible to
free prune, we should add `free(prune)` in the end of prepare_show_merge().
Signed-off-by: Lidong Yan <502024330056@smail.nju.edu.cn>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If rebase.instructionFormat is invalid the repository is left in a
strange state when the interactive rebase fails. `git status` outputs
boths the same as it would in the normal case *and* something related to
interactive rebase:
$ git -c rebase.instructionFormat=blah rebase -i
fatal: invalid --pretty format: blah
$ git status
On branch master
Your branch is ahead of 'upstream/master' by 1 commit.
(use "git push" to publish your local commits)
git-rebase-todo is missing.
No commands done.
No commands remaining.
You are currently editing a commit while rebasing branch 'master' on '8db3019401'.
(use "git commit --amend" to amend the current commit)
(use "git rebase --continue" once you are satisfied with your changes)
By attempting to write the rebase script before initializing the state
this potential scenario is avoided.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
commit d3d8c601fd ("t7815: fix unexpectedly passing test on macOS",
2025-06-02) added a MACOS prerequisite by adding a 'Darwin' case
label to the 'OS-specific' case statement. However, this commit
forgot to set several prerequisites which appear in the 'default'
case label, in addition to the new MACOS prerequisite. This causes
several tests, which macOS should pass, being skipped.
In order to run all applicable tests on macOS, add the missing
prerequisites to the 'Darwin' case.
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In pack-bitmap.c:find_boundary_objects(), the roots_bitmap is only freed
if cascade_pseudo_merges_1() fails. However, cascade_pseudo_merges_1()
uses roots_bitmap as a mutable reference without taking ownership of it.
As a result, if cascade_pseudo_merges_1() succeeds, roots_bitmap is leaked.
And this leak currently lacks a dedicated test to detect it.
To fix this leak, remove if cascade_pseudo_merges_1() succeed check and
always calling bitmap_free(roots_bitmap);
To trigger this leak, we need roots_bitmap that contains at least one
pseudo merge. So that we can use pseudo merge bitmap when we compute roots
reachable bitmap. Here we create two commits: first A then B. Add A
to the pseudo-merge and perform a traversal over the range A..B.
In this scenario, the "haves" set will be {A}, and cascade_pseudo_merges_1
will succeed, thereby exposing the leak due to the missing roots_bitmap
cleanup.
Signed-off-by: Lidong Yan <502024330056@smail.nju.edu.cn>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Tests that compare $HOME and $(pwd), which should be the same
directory unless the tests chdir's around, would fail when the user
enters the test directory via symbolic links, which has been
corrected.
* mm/test-in-absolute-home:
t: run tests from a normalized working directory
In builtin/submodule--helper.c:update_submodule(), the variable
remote_name is allocated in get_default_remote_submodule() but
may be leaked if remote_submodule_branch() fails. Although it is
unlikely that remote_submodule_branch() would fail after successfully
obtaining a remote ref name from get_default_remote_submodule(),
it is still possible. To prevent a potential memory leak, add a
call to free(remote_name) at the early exit point.
Signed-off-by: Lidong Yan <502024330056@smail.nju.edu.cn>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Solaris 10 and newer has strtoumax().
Solaris 11 and newer has mkdtemp(), memmem(), and strcasestr().
Signed-off-by: Brad Smith <brad@comstyle.com>
Reviewed-by: Collin Funk <collin.funk1@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Adjust to newer version of libcURL.
* jk/curl-easy-setopt-typefix:
curl: fix symbolic constant typechecks with curl_easy_setopt()
curl: fix integer variable typechecks with curl_easy_setopt()
curl: fix integer constant typechecks with curl_easy_setopt()
The support for assuming "push" when "-p" is given introduced in
9e140909f61 (stash: allow pathspecs in the no verb form, 2017-02-28) is
very narrow, neither "git stash -m <message> -p <pathspec>" nor "git
stash --patch <pathspec>" imply "push" and die instead. Relax this by
passing PARSE_OPT_STOP_AT_NON_OPTION when push is being assumed and then
setting "force_assume" if "--patch" was present. This means "git stash
<pathspec> -p" still dies so that it does not assume the user meant
"push" if they mistype a subcommand name but "git stash -m <message> -p
<pathspec>" will now succeed. The test added in the last commit is
adjusted to check that push is still assumed when "--patch" comes after
other options on the command-line.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Historically "git stash [<options>]" was assumed to mean "git stash save
[<options>]". Since 1ada5020b38 (stash: use stash_push for no verb form,
2017-02-28) it is assumed to mean "git stash push [<options>]". As the
push subcommand supports pathspecs, 9e140909f61 (stash: allow pathspecs
in the no verb form, 2017-02-28) allowed "git stash -p <pathspec>" to
mean "git stash push -p <pathspec>". This was broken in 8c3713cede7
(stash: eliminate crude option parsing, 2020-02-17) which failed to
account for "push" being added to the start of argv in cmd_stash()
before it calls push_stash() and kept looking in argv[0] for "-p" after
moving the code to push_stash().
Fix this by regression by checking argv[1] instead of argv[0] and add a
couple of tests to prevent future regressions.
Helped-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The .txt extensions were changed to .adoc in 1f010d6 (doc: use .adoc
extension for AsciiDoc files, 2025-01-20). References to the renamed
files were not updated yet.
Signed-off-by: Jouke Witteveen <j.witteveen@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit 0b080a70ab (doc: git-diff: apply format changes to
diff-generate-patch, 2024-11-18) wrapped the ".." in
mode <mode>,<mode>..<mode>
in backticks. Note how the line before is quite similar,
index <hash>,<hash>..<hash>
but did not get any backticks. Remove the backticks, since they confuse
Asciidoctor.
The exact failure mode changed with c87b2b3a6f (doc: fix asciidoctor
synopsis processing of triple-dots, 2025-04-12), and arguably to the
better. But Asciidoctor (2.0.18) still ends up confused by these
backticks and leaves the manpage rendering as
index <hash>,<hash>..<hash>
mode <mode>,<mode>`..__<mode>__
{empty}`new file mode <mode>
Drop the backticks. This is a no-op with asciidoc (10.2.0).
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As of Homebrew's update to cURL v8.14.0, there are new compile errors to
be observed in the `osx-gcc` job of Git's CI builds:
In file included from http.h:8,
from imap-send.c:36:
In function 'setup_curl',
inlined from 'curl_append_msgs_to_imap' at imap-send.c:1460:9,
inlined from 'cmd_main' at imap-send.c:1581:9:
/usr/local/Cellar/curl/8.14.0/include/curl/typecheck-gcc.h:50:15: error: call to '_curl_easy_setopt_err_long' declared with attribute warning: curl_easy_setopt expects a long argument [-Werror=attribute-warning]
50 | _curl_easy_setopt_err_long(); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/Cellar/curl/8.14.0/include/curl/curl.h:54:7: note: in definition of macro 'CURL_IGNORE_DEPRECATION'
54 | statements \
| ^~~~~~~~~~
imap-send.c:1423:9: note: in expansion of macro 'curl_easy_setopt'
1423 | curl_easy_setopt(curl, CURLOPT_PORT, srvc->port);
| ^~~~~~~~~~~~~~~~
[... many more instances of nearly identical warnings...]
See for example this CI workflow run:
https://github.com/git/git/actions/runs/15454602308/job/43504278284#step:4:307
The most likely explanation is the entry "typecheck-gcc.h: fix the
typechecks" in cURL's release notes (https://curl.se/ch/8.14.0.html).
Nearly identical compile errors afflicted recently-updated Debian
setups, which have been addressed by `jk/curl-easy-setopt-typefix`.
However, on macOS Git is built with different build options, which
uncovered more instances of `int` values that need to be cast to
constants, which were not covered by 6f11c42e8edc (curl: fix integer
constant typechecks with curl_easy_setopt(), 2025-06-04). Let's
explicitly convert even those remaining `int` constants in
`curl_easy_setopt()` calls to `long` parameters.
In addition to looking at the compile errors of the `osx-gcc` job, I
verified that there are no other instances of the same issue that need
to be handled in this manner (and that might not be caught by our CI
builds because of yet other build options that might skip those code
parts), I ran the following command and inspected all 23 results
manually to ensure that the fix is now actually complete:
git grep -n curl_easy_setopt |
grep -ve ',.*, *[A-Za-z_"&]' \
-e ',.*, *[-0-9]*L)' \
-e ',.*,.* (long)'
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit 2cc5b0facfa4 (git-gui: extract script to generate "tclIndex",
2025-03-11) converted commands in a Makefile rule to a shell script.
In this process, the Makefile variable $@ had to be replaced by the
file name that it represents, 'lib/tclIndex'. However, the occurrence
in `rm -f $@` was missed. In a shell script, $@ expands to all
command line arguments, which happen to be the source files lib/*.tcl
in this case. Needless to say that we do not want to remove source
files during a build. Replace $@ by the intended 'lib/tclIndex'.
Reported-by: Randall S. Becker <rsbecker@nexbridge.com>
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
In the GitHub workflow used in Git's CI builds, the `vs test` jobs use a
subset of a specific revision of Git for Windows' SDK to run Git's test
suite. This revision is validated by another CI workflow to ensure that
said revision _can_ run Git's test suite successfully, skipping buggy
updates in Git for Windows' SDK.
The `win+Meson test` jobs do things differently, quite differently. They
use the Bash of the Git for Windows version that is installed on the
runners to run Git's test suite.
This difference has consequences.
When 68cb0b5253a0 (builtin/receive-pack: add option to skip connectivity
check, 2025-05-20) introduced a test case that uses `tee <file> | git
receive-pack` as `--receive-pack` parameter (imitating an existing
pattern in the same test script), it hit just the sweet spot to trigger
a bug in the MSYS2 runtime shipped in Git for Windows v2.49.0. This
version is the one currently installed on GitHub's runners.
The problem is that the `git receive-pack` process finishes while the
`tee` process does not need to write anything anymore and therefore does
not receive an EOF. Instead, it should receive a SIGPIPE, but the bug in
the MSYS2 runtime prevents that from working as intended. As a
consequence, the `tee` process waits for more input from the `git.exe
send-pack` process but none is coming, and the test script patiently
waits until the 6h timeout hits.
Only every once in a while, the `git receive-pack` process manages to
send an EOF to the `tee` process and no hang occurs. Therefore, the
problem can be worked around by cancelling the clearly-hanging job after
twenty or so minutes and re-running it, repeating the process about half
a dozen times, until the hang was successfully avoided.
This bug in the MSYS2 runtime has been fixed in the meantime, which is
the reason why the same test case causes no problems in the `win test`
and the `vs test` jobs.
This will continue to be the case until the Git for Windows version on
the GitHub runners is upgraded to a version that distributes a newer
MSYS2 runtime version. However, as of time of writing, this _is_ the
latest Git for Windows version, and will be for another 1.5 weeks, until
Git v2.50.0 is scheduled to appear (and shortly thereafter Git for
Windows v2.50.0). Traditionally it takes a while before the runners pick
up the new version.
We could just wait it out, six hours at a time.
Here, I opt for an alternative: Detect the buggy MSYS2 runtime and
simply skip the test case. It's not like the `receive-pack` test cases
are specific to Windows, and even then, to my chagrin the CI runs in
git-for-windows/git spend around ten hours of compute time each and
every time to run the entire test suite on all the platforms, even the
tests that cover cross-platform code, and for Windows alone we do that
three times: with GCC, with MSVC, and with MSVC via Meson. Therefore, I
deem it more than acceptable to skip this test case in one of those
matrices.
For good luck, also the preceding test case is skipped in that scenario,
as it uses the same `--receive-pack=tee <file> | git receive-pack`
pattern, even though I never observed that test case to hang in
practice.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
