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2023-03-17Merge branch 'en/header-cleanup'Junio C Hamano322-529/+858
Code clean-up to clarify the rule that "git-compat-util.h" must be the first to be included. * en/header-cleanup: diff.h: remove unnecessary include of object.h Remove unnecessary includes of builtin.h treewide: replace cache.h with more direct headers, where possible replace-object.h: move read_replace_refs declaration from cache.h to here object-store.h: move struct object_info from cache.h dir.h: refactor to no longer need to include cache.h object.h: stop depending on cache.h; make cache.h depend on object.h ident.h: move ident-related declarations out of cache.h pretty.h: move has_non_ascii() declaration from commit.h cache.h: remove dependence on hex.h; make other files include it explicitly hex.h: move some hex-related declarations from cache.h hash.h: move some oid-related declarations from cache.h alloc.h: move ALLOC_GROW() functions from cache.h treewide: remove unnecessary cache.h includes in source files treewide: remove unnecessary cache.h includes treewide: remove unnecessary git-compat-util.h includes in headers treewide: ensure one of the appropriate headers is sourced first
2023-03-17Merge branch 'jk/unused-post-2.39-part2'Junio C Hamano43-176/+211
More work towards -Wunused. * jk/unused-post-2.39-part2: (21 commits) help: mark unused parameter in git_unknown_cmd_config() run_processes_parallel: mark unused callback parameters userformat_want_item(): mark unused parameter for_each_commit_graft(): mark unused callback parameter rewrite_parents(): mark unused callback parameter fetch-pack: mark unused parameter in callback function notes: mark unused callback parameters prio-queue: mark unused parameters in comparison functions for_each_object: mark unused callback parameters list-objects: mark unused callback parameters mark unused parameters in signal handlers run-command: mark error routine parameters as unused mark "pointless" data pointers in callbacks ref-filter: mark unused callback parameters http-backend: mark unused parameters in virtual functions http-backend: mark argc/argv unused object-name: mark unused parameters in disambiguate callbacks serve: mark unused parameters in virtual functions serve: use repository pointer to get config ls-refs: drop config caching ...
2023-03-17Merge branch 'en/dir-api-cleanup'Junio C Hamano7-249/+290
Code clean-up to clarify directory traversal API. * en/dir-api-cleanup: unpack-trees: add usage notices around df_conflict_entry unpack-trees: special case read-tree debugging as internal usage unpack-trees: rewrap a few overlong lines from previous patch unpack-trees: mark fields only used internally as internal unpack_trees: start splitting internal fields from public API sparse-checkout: avoid using internal API of unpack-trees, take 2 sparse-checkout: avoid using internal API of unpack-trees unpack-trees: clean up some flow control dir: mark output only fields of dir_struct as such dir: add a usage note to exclude_per_dir dir: separate public from internal portion of dir_struct unpack-trees: heed requests to overwrite ignored files t2021: fix platform-specific leftover cruft
2023-03-17Merge branch 'jk/fsck-indices-in-worktrees'Junio C Hamano2-31/+92
"git fsck" learned to check the index files in other worktrees, just like "git gc" honors them as anchoring points. * jk/fsck-indices-in-worktrees: fsck: check even zero-entry index files fsck: mention file path for index errors fsck: check index files in all worktrees fsck: factor out index fsck
2023-03-16completion: prompt: use generic colorsFelipe Contreras2-16/+11
When the prompt command mode was introduced in 1bfc51ac81 (Allow __git_ps1 to be used in PROMPT_COMMAND, 2012-10-10), the assumption was that it was necessary in order to properly add colors to PS1 in bash, but this wasn't true. It's true that the \[ \] markers add the information needed to properly calculate the width of the prompt, and they have to be added directly to PS1, a function returning them doesn't work. But that is because bash coverts the \[ \] markers in PS1 to \001 \002, which is what readline ultimately needs in order to calculate the width. We don't need bash to do this conversion, we can use \001 \002 ourselves, and then the prompt command mode is not necessary to display colors. This is what functions returning colors are supposed to do [1]. [1] http://mywiki.wooledge.org/BashFAQ/053 Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Tested-by: Joakim Petersen <joak-pet@online.no> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-16object-name: fix quiet @{u} parsingFelipe Contreras2-2/+8
Currently `git rev-parse --quiet @{u}` is not actually quiet when upstream isn't configured: fatal: no upstream configured for branch 'foo' Make it so. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-13rebase: prefer --default-prefix to --{src,dst}-prefix for format-patchJeff King1-1/+1
When git-rebase invokes format-patch, it wants to make sure we use the normal prefixes, and are not confused by diff.noprefix or similar. When this was added in 5b220a6876f (Add --src/dst-prefix to git-formt-patch in git-rebase.sh, 2010-09-09), we only had --src-prefix and --dst-prefix to do so, which requires re-specifying the prefixes we expect to see. These days we can say what we want more directly: just use the defaults. This is a minor cleanup that should have no behavior change, but hopefully the result expresses more clearly what the code is trying to accomplish. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-12Git 2.40v2.40.0Junio C Hamano1-1/+1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-12Merge tag 'l10n-2.40.0-rnd1' of https://github.com/git-l10n/git-poJunio C Hamano8-4492/+3499
l10n-2.40.0-rnd1 * tag 'l10n-2.40.0-rnd1' of https://github.com/git-l10n/git-po: l10n: zh_CN v2.40.0 round 1 l10n: update German translation l10n: tr: Update Turkish translations for v.2.40.0 l10n: fr: v2.40.0 rnd 2 l10n: fr: v2.40.0 rnd 1 l10n: fr: fix some typos l10n: po-id for 2.40 (round 1) l10n: sv.po: Update Swedish translation (5490t0f0u) l10n: bg.po: Updated Bulgarian translation (5490t) l10n: Update Catalan translation
2023-03-12t5604: GETTEXT_POISON fix, conclusionJohannes Schindelin1-1/+1
In fade728df122 (apply: fix writing behind newly created symbolic links, 2023-02-02), we backported a patch onto v2.30.* that was originally based on a much newer version. The v2.30.* release train still has the GETTEXT_POISON CI job, though, and hence needs `test_i18n*` in its tests. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2023-03-12t5604: GETTEXT_POISON fix, part 1Johannes Schindelin1-1/+1
In bffc762f87ae (dir-iterator: prevent top-level symlinks without FOLLOW_SYMLINKS, 2023-01-24), we backported a patch onto v2.30.* that was originally based on a much newer version. The v2.30.* release train still has the GETTEXT_POISON CI job, though, and hence needs `test_i18n*` in its tests. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2023-03-12t5619: GETTEXT_POISON fixJohannes Schindelin1-1/+1
In cf8f6ce02a13 (clone: delay picking a transport until after get_repo_path(), 2023-01-24), we backported a patch onto v2.30.* that was originally based on a much newer version. The v2.30.* release train still has the GETTEXT_POISON CI job, though, and hence needs `test_i18n*` in its tests. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2023-03-12range-diff: use ssize_t for parsed "len" in read_patches()Jeff King1-1/+1
As we iterate through the buffer containing git-log output, parsing lines, we use an "int" to store the size of an individual line. This should be a size_t, as we have no guarantee that there is not a malicious 2GB+ commit-message line in the output. Overflowing this integer probably doesn't do anything _too_ terrible. We are not using the value to size a buffer, so the worst case is probably an out-of-bounds read from before the array. But it's easy enough to fix. Note that we have to use ssize_t here, since we also store the length result from parse_git_diff_header(), which may return a negative value for error. That function actually returns an int itself, which has a similar overflow problem, but I'll leave that for another day. Much of the apply.c code uses ints and should be converted as a whole; in the meantime, a negative return from parse_git_diff_header() will be interpreted as an error, and we'll bail (so we can't handle such a case, but given that it's likely to be malicious anyway, the important thing is we don't have any memory errors). Signed-off-by: Jeff King <peff@peff.net> Acked-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-12t0003: GETTEXT_POISON fix, conclusionJohannes Schindelin1-1/+1
In 3c50032ff528 (attr: ignore overly large gitattributes files, 2022-12-01), we backported a patch onto v2.30.* that was originally based on a much newer version. The v2.30.* release train still has the GETTEXT_POISON CI job, though, and hence needs `test_i18n*` in its tests. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2023-03-12range-diff: handle unterminated lines in read_patches()Jeff King1-14/+11
When parsing our buffer of output from git-log, we have a find_end_of_line() helper that finds the next newline, and gives us the number of bytes to move past it, or the size of the whole remaining buffer if there is no newline. But trying to handle both those cases leads to some oddities: - we try to overwrite the newline with NUL in the caller, by writing over line[len-1]. This is at best redundant, since the helper will already have done so if it saw a newline. But if it didn't see a newline, it's actively wrong; we'll overwrite the byte at the end of the (unterminated) line. We could solve this just dropping the extra NUL assignment in the caller and just letting the helper do the right thing. But... - if we see a "diff --git" line, we'll restore the newline on top of the NUL byte, so we can pass the string to parse_git_diff_header(). But if there was no newline in the first place, we can't do this. There's no place to put it (the current code writes a newline over whatever byte we obliterated earlier). The best we can do is feed the complete remainder of the buffer to the function (which is, in fact, a string, by virtue of being a strbuf). To solve this, the caller needs to know whether we actually found a newline or not. We could modify find_end_of_line() to return that information, but we can further observe that it has only one caller. So let's just inline it in that caller. Nobody seems to have noticed this case, probably because git-log would never produce input that doesn't end with a newline. Arguably we could just return an error as soon as we see that the output does not end in a newline. But the code to do so actually ends up _longer_, mostly because of the cleanup we have to do in handling the error. Signed-off-by: Jeff King <peff@peff.net> Acked-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-12t0003: GETTEXT_POISON fix, part 1Johannes Schindelin1-4/+4
In dfa6b32b5e59 (attr: ignore attribute lines exceeding 2048 bytes, 2022-12-01), we backported a patch onto v2.30.* that was originally based on a much newer version. The v2.30.* release train still has the GETTEXT_POISON CI job, though, and hence needs `test_i18n*` in its tests. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2023-03-12t0033: GETTEXT_POISON fixJohannes Schindelin1-1/+1
In e47363e5a8bd (t0033: add tests for safe.directory, 2022-04-13), we backported a patch onto v2.30.* that was originally based on a much newer version. The v2.30.* release train still has the GETTEXT_POISON CI job, though, and hence needs `test_i18n*` in its tests. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2023-03-12http: support CURLOPT_PROTOCOLS_STRJeff King1-13/+44
The CURLOPT_PROTOCOLS (and matching CURLOPT_REDIR_PROTOCOLS) flag was deprecated in curl 7.85.0, and using it generate compiler warnings as of curl 7.87.0. The path forward is to use CURLOPT_PROTOCOLS_STR, but we can't just do so unilaterally, as it was only introduced less than a year ago in 7.85.0. Until that version becomes ubiquitous, we have to either disable the deprecation warning or conditionally use the "STR" variant on newer versions of libcurl. This patch switches to the new variant, which is nice for two reasons: - we don't have to worry that silencing curl's deprecation warnings might cause us to miss other more useful ones - we'd eventually want to move to the new variant anyway, so this gets us set up (albeit with some extra ugly boilerplate for the conditional) There are a lot of ways to split up the two cases. One way would be to abstract the storage type (strbuf versus a long), how to append (strbuf_addstr vs bitwise OR), how to initialize, which CURLOPT to use, and so on. But the resulting code looks pretty magical: GIT_CURL_PROTOCOL_TYPE allowed = GIT_CURL_PROTOCOL_TYPE_INIT; if (...http is allowed...) GIT_CURL_PROTOCOL_APPEND(&allowed, "http", CURLOPT_HTTP); and you end up with more "#define GIT_CURL_PROTOCOL_TYPE" macros than actual code. On the other end of the spectrum, we could just implement two separate functions, one that handles a string list and one that handles bits. But then we end up repeating our list of protocols (http, https, ftp, ftp). This patch takes the middle ground. The run-time code is always there to handle both types, and we just choose which one to feed to curl. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2023-03-12ci: install python on ubuntuJiang Xin2-4/+4
Python is missing from the default ubuntu-22.04 runner image, which prevents git-p4 from working. To install python on ubuntu, we need to provide the correct package names: * On Ubuntu 18.04 (bionic), "/usr/bin/python2" is provided by the "python" package, and "/usr/bin/python3" is provided by the "python3" package. * On Ubuntu 20.04 (focal) and above, "/usr/bin/python2" is provided by the "python2" package which has a different name from bionic, and "/usr/bin/python3" is provided by "python3". Since the "ubuntu-latest" runner image has a higher version, its safe to use "python2" or "python3" package name. Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-12range-diff: drop useless "offset" variable from read_patches()Jeff King1-2/+2
The "offset" variable was was introduced in 44b67cb62b (range-diff: split lines manually, 2019-07-11), but it has never done anything useful. We use it to count up the number of bytes we've consumed, but we never look at the result. It was probably copied accidentally from an almost-identical loop in apply.c:find_header() (and the point of that commit was to make use of the parse_git_diff_header() function which underlies both). Because the variable was set but not used, most compilers didn't seem to notice, but the upcoming clang-14 does complain about it, via its -Wunused-but-set-variable warning. Signed-off-by: Jeff King <peff@peff.net> Acked-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-12http: prefer CURLOPT_SEEKFUNCTION to CURLOPT_IOCTLFUNCTIONJeff King5-36/+36
The IOCTLFUNCTION option has been deprecated, and generates a compiler warning in recent versions of curl. We can switch to using SEEKFUNCTION instead. It was added in 2008 via curl 7.18.0; our INSTALL file already indicates we require at least curl 7.19.4. But there's one catch: curl says we should use CURL_SEEKFUNC_{OK,FAIL}, and those didn't arrive until 7.19.5. One workaround would be to use a bare 0/1 here (or define our own macros). But let's just bump the minimum required version to 7.19.5. That version is only a minor version bump from our existing requirement, and is only a 2 month time bump for versions that are almost 13 years old. So it's not likely that anybody cares about the distinction. Switching means we have to rewrite the ioctl functions into seek functions. In some ways they are simpler (seeking is the only operation), but in some ways more complex (the ioctl allowed only a full rewind, but now we can seek to arbitrary offsets). Curl will only ever use SEEK_SET (per their documentation), so I didn't bother implementing anything else, since it would naturally be completely untested. This seems unlikely to change, but I added an assertion just in case. Likewise, I doubt curl will ever try to seek outside of the buffer sizes we've told it, but I erred on the defensive side here, rather than do an out-of-bounds read. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2023-03-12http-push: prefer CURLOPT_UPLOAD to CURLOPT_PUTJeff King1-1/+1
The two options do exactly the same thing, but the latter has been deprecated and in recent versions of curl may produce a compiler warning. Since the UPLOAD form is available everywhere (it was introduced in the year 2000 by curl 7.1), we can just switch to it. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2023-03-12nedmalloc: avoid new compile errorJohannes Schindelin1-1/+0
GCC v12.x complains thusly: compat/nedmalloc/nedmalloc.c: In function 'DestroyCaches': compat/nedmalloc/nedmalloc.c:326:12: error: the comparison will always evaluate as 'true' for the address of 'caches' will never be NULL [-Werror=address] 326 | if(p->caches) | ^ compat/nedmalloc/nedmalloc.c:196:22: note: 'caches' declared here 196 | threadcache *caches[THREADCACHEMAXCACHES]; | ^~~~~~ ... and it is correct, of course. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-12ci: use the same version of p4 on both Linux and macOSJiang Xin2-9/+10
There would be a segmentation fault when running p4 v16.2 on ubuntu 22.04 which is the latest version of ubuntu runner image for github actions. By checking each version from [1], p4d version 21.1 and above can work properly on ubuntu 22.04. But version 22.x will break some p4 test cases. So p4 version 21.x is exactly the version we can use. With this update, the versions of p4 for Linux and macOS happen to be the same. So we can add the version number directly into the "P4WHENCE" variable, and reuse it in p4 installation for macOS. By removing the "LINUX_P4_VERSION" variable from "ci/lib.sh", the comment left above has nothing to do with p4, but still applies to git-lfs. Since we have a fixed version of git-lfs installed on Linux, we may have a different version on macOS. [1]: https://cdist2.perforce.com/perforce/ Reviewed-by: Johannes Schindelin <johannes.schindelin@gmx.de> Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-12ci: remove the pipe after "p4 -V" to catch errorsJiang Xin1-2/+2
When installing p4 as a dependency, we used to pipe output of "p4 -V" and "p4d -V" to validate the installation and output a condensed version information. But this would hide potential errors of p4 and would stop with an empty output. E.g.: p4d version 16.2 running on ubuntu 22.04 causes sigfaults, even before it produces any output. By removing the pipe after "p4 -V" and "p4d -V", we may get a verbose output, and stop immediately on errors because we have "set -e" in "ci/lib.sh". Since we won't look at these trace logs unless something fails, just including the raw output seems most sensible. Reviewed-by: Johannes Schindelin <johannes.schindelin@gmx.de> Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-12github-actions: run gcc-8 on ubuntu-20.04 imageJiang Xin1-1/+1
GitHub starts to upgrade its runner image "ubuntu-latest" from version "ubuntu-20.04" to version "ubuntu-22.04". It will fail to find and install "gcc-8" package on the new runner image. Change the runner image of the `linux-gcc` job from "ubuntu-latest" to "ubuntu-20.04" in order to install "gcc-8" as a dependency. Reviewed-by: Johannes Schindelin <johannes.schindelin@gmx.de> Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-12compat/win32/syslog: fix use-after-reallocJohannes Schindelin1-0/+2
Git for Windows' SDK recently upgraded to GCC v12.x which points out that the `pos` variable might be used even after the corresponding memory was `realloc()`ed and therefore potentially no longer valid. Since a subset of this SDK is used in Git's CI/PR builds, we need to fix this to continue to be able to benefit from the CI/PR runs. Note: This bug has been with us since 2a6b149c64f6 (mingw: avoid using strbuf in syslog, 2011-10-06), and while it looks tempting to replace the hand-rolled string manipulation with a `strbuf`-based one, that commit's message explains why we cannot do that: The `syslog()` function is called as part of the function in `daemon.c` which is set as the `die()` routine, and since `strbuf_grow()` can call that function if it runs out of memory, this would cause a nasty infinite loop that we do not want to re-introduce. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-10ls-files: fix "--format" output of relative pathsAdam Johnson2-1/+20
Fix a bug introduced with the "--format" option in ce74de93 (ls-files: introduce "--format" option, 2022-07-23), where relative paths were computed using the output buffer, which could lead to random garbage data in the output. Signed-off-by: Adam Johnson <me@adamj.eu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-10receive-pack: fix stale packfile locks when dyingPatrick Steinhardt1-4/+10
When accepting a packfile in git-receive-pack(1), we feed that packfile into git-index-pack(1) to generate the packfile index. As the packfile would often only contain unreachable objects until the references have been updated, concurrently running garbage collection might be tempted to delete the packfile right away and thus cause corruption. To fix this, we ask git-index-pack(1) to create a `.keep` file before moving the packfile into place, which is getting deleted again once all of the reference updates have been processed. Now in production systems we have observed that those `.keep` files are sometimes not getting deleted as expected, where the result is that repositories tend to grow packfiles that are never deleted over time. This seems to be caused by a race when git-receive-pack(1) is killed after we have migrated the kept packfile from the quarantine directory into the main object database. While this race window is typically small it can be extended for example by installing a `proc-receive` hook. Fix this race by registering the lockfile as a tempfile so that it will automatically be removed at exit or when receiving a signal. Helped-by: Jeff King <peff@peff.net> Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-10Merge branch 'fz/po-zh_CN' of github.com:fangyi-zhou/git-poJiang Xin1-647/+471
* 'fz/po-zh_CN' of github.com:fangyi-zhou/git-po: l10n: zh_CN v2.40.0 round 1
2023-03-09test: don't print aggregate-results commandFelipe Contreras2-2/+2
There's no value in it. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-09test: simplify counts aggregationFelipe Contreras3-7/+3
When the list of files as input was implemented in 6508eedf67 (t/aggregate-results: accomodate systems with small max argument list length, 2010-06-01), a much simpler solution wasn't considered. Let's just pass the directory as an argument. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-09object-file: reprepare alternates when necessaryDerrick Stolee1-0/+10
When an object is not found in a repository's object store, we sometimes call reprepare_packed_git() to see if the object was temporarily moved into a new pack-file (and its old pack-file or loose object was deleted). This process does a scan of each pack directory within each odb, but does not reevaluate if the odb list needs updating. Extend reprepare_packed_git() to also reprepare the alternate odb list by setting loaded_alternates to zero and calling prepare_alt_odb(). This will add newly-discoverd odbs to the linked list, but will not duplicate existing ones nor will it remove existing ones that are no longer listed in the alternates file. Do this under the object read lock to avoid readers from interacting with a potentially incomplete odb being added to the odb list. If the alternates file was edited to _remove_ some alternates during the course of the Git process, Git will continue to see alternates that were ever valid for that repository. ODBs are not removed from the list, the same as the existing behavior before this change. Git already has protections against an alternate directory disappearing from the filesystem during the lifetime of a process, and those are still in effect. This change is specifically for concurrent changes to the repository, so it is difficult to create a test that guarantees this behavior is correct. I manually verified by introducing a reprepare_packed_git() call into get_revision() and stepped into that call in a debugger with a parent 'git log' process. Multiple runs of prepare_alt_odb() kept the_repository->objects->odb as a single-item chain until I added a .git/objects/info/alternates file in a different process. The next run added the new odb to the chain and subsequent runs did not add to the chain. Signed-off-by: Derrick Stolee <derrickstolee@github.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-09fetch: pass --no-write-fetch-head to subprocessesEric Wong3-0/+22
It seems a user would expect this option would work regardless of whether it's fetching from a single remote, many remotes, or recursing into submodules. Signed-off-by: Eric Wong <e@80x24.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-09add-patch: handle "* Unmerged path" linesJeff King2-1/+23
When we generate a diff with --cached, unmerged entries have no oid for their index entry: $ git diff-index --abbrev --cached HEAD :100644 000000 f719efd 0000000 U my-conflict So when we are asked to produce a patch, since we only have one side, we just emit a special message: $ git diff-index --cached -p HEAD * Unmerged path my-conflict This confuses interactive-patch modes that look at cached diffs. For example: $ git reset -p BUG: add-patch.c:498: diff starts with unexpected line: * Unmerged path my-conflict Making things even more confusing, you'll get that error only if the unmerged entry is alphabetically the first changed file. Otherwise, we simply stick the unrecognized line to the end of the previous hunk. There it's mostly harmless, as it eventually gets fed back to "git apply", which happily ignores it. But it's still shown to the user attached to the hunk, which is wrong. So let's handle these lines as a noop. There's not really anything useful to do with a conflicted merge in this case, and that's what we do for other cases like "add -p". There we get a "diff --cc" line, which we accept as starting a new file, but we refuse to use any of its hunks (their headers start with "@@@" and not "@@ ", so we silently ignore them). It seems like simply recognizing the line and continuing in our parsing loop would work. But we actually need to run the rest of the loop body to handle matching up our colored/filtered output. But that code assumes that we have some active file_diff we're working on. So instead, we'll just insert a dummy entry into our array. This ends up the same as if we saw a "diff --cc" line (a file with no hunks). Reported-by: Philippe Blain <levraiphilippeblain@gmail.com> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-09format-patch: add format.noprefix optionJeff King3-0/+26
The previous commit dropped support for diff.noprefix in format-patch. While this will do the right thing in most cases (where sending patches without a prefix was an accidental side effect of the sender preferring to see their local patches without prefixes), it left no good option for a project or workflow where you really do want to send patches without prefixes. You'd be stuck using "--no-prefix" for every invocation. So let's add a config option specific to format-patch that enables this behavior. That gives people who have such a workflow a way to get what they want, but makes it hard to accidentally trigger it. A more backwards-compatible way of doing the transition would be to have format.noprefix default to diff.noprefix when it's not set. But that doesn't really help the "accidental" problem; people would have to manually set format.noprefix=false. And it's unlikely that anybody really wants format.noprefix=true in the first place. I'm adding it here mostly as an escape hatch, not because anybody has expressed any interest in it. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-09format-patch: do not respect diff.noprefixJeff King2-0/+14
The output of format-patch respects diff.noprefix, but this usually ends up being a hassle for people receiving the patch, as they have to manually specify "-p0" in order to apply it. I don't think there was any specific intention for it to behave this way. The noprefix option is handled by git_diff_ui_config(), and format-patch exists in a gray area between plumbing and porcelain. People do look at the output, and we'd expect it to colorize things, respect their choice of algorithm, and so on. But this particular option creates problems for the receiver (in theory so does diff.mnemonicprefix, but since we are always formatting commits, the mnemonic prefixes will always be "a/" and "b/"). So let's disable it. The slight downsides are: - people who have set diff.noprefix presumably like to see their patches without prefixes. If they use format-patch to review their series, they'll see prefixes. On the other hand, it is probably a good idea for them to look at what will actually get sent out. We could try to play games here with "is stdout a tty", as we do for color. But that's not a completely reliable signal, and it's probably not worth the trouble. If you want to see the patch with the usual bells and whistles, then you are better off using "git log" or "git show". - if a project really does have a workflow that likes prefix-less patches, and the receiver is prepared to use "-p0", then the sender now has to manually say "--no-prefix" for each format-patch invocation. That doesn't seem _too_ terrible given that the receiver has to manually say "-p0" for each git-am invocation. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-09diff: add --default-prefix optionJeff King3-0/+29
You can change the output of prefixes with diff.noprefix and diff.mnemonicprefix, but there's no easy way to override them from the command-line. We do have "--no-prefix", but there's no way to get back to the default prefix. So let's add an option to do that. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-09t4013: add tests for diff prefix optionsJeff King1-0/+32
We don't have any specific test coverage of diff's various prefix options. We do incidentally invoke them in a few places, but it's worth having a more thorough set of tests that covers all of the effects we expect to see, and that the options kick in at the appropriate times. This will be especially useful as the next patch adds more options. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-09diff: factor out src/dst prefix setupJeff King2-5/+16
We directly manipulate diffopt's a_prefix and b_prefix to set up either the default "a/foo" prefix or the "--no-prefix" variant. Although this is only a few lines, it's worth pulling these into their own functions. That lets us avoid one repetition already in this patch, but will also give us a cleaner interface for callers which want to tweak this setting. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-08sequencer.c: fix overflow & segfault in parse_strategy_opts()Ævar Arnfjörð Bjarmason2-2/+25
The split_cmdline() function introduced in [1] returns an "int". If it's negative it signifies an error. The option parsing in [2] didn't account for this, and assigned the value directly to the "size_t xopts_nr". We'd then attempt to loop over all of these elements, and access uninitialized memory. There's a few things that use this for option parsing, but one way to trigger it is with a bad value to "-X <strategy-option>", e.g: git rebase -X"bad argument\"" In another context this might be a security issue, but in this case someone who's already able to inject arguments directly to our commands would be past other defenses, making this potential escalation a moot point. As the example above & test case shows the error reporting leaves something to be desired. The function will loop over the whitespace-split values, but when it encounters an error we'll only report the first element, which is OK, not the second "argument\"" whose quote is unbalanced. This is an inherent limitation of the current API, and the issue affects other API users. Let's not attempt to fix that now. If and when that happens these tests will need to be adjusted to assert the new output. 1. 2b11e3170e9 (If you have a config containing something like this:, 2006-06-05) 2. ca6c6b45dd9 (sequencer (rebase -i): respect strategy/strategy_opts settings, 2017-01-02) Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-08advice: add diverging advice for novicesFelipe Contreras3-0/+12
The user might not necessarily know why ff only was configured, maybe an admin did it, or the installer (Git for Windows), or perhaps they just followed some online advice. This can happen not only on pull.ff=only, but merge.ff=only too. Even worse if the user has configured pull.rebase=false and merge.ff=only, because in those cases a diverging merge will constantly keep failing. There's no trivial way to get out of this other than `git merge --no-ff`. Let's not assume our users are experts in git who completely understand all their configurations. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Acked-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-08Merge branch 'l10n-de-2.40' of github.com:ralfth/gitJiang Xin1-486/+681
* 'l10n-de-2.40' of github.com:ralfth/git: l10n: update German translation
2023-03-08Merge branch 'po-id' of github.com:bagasme/git-poJiang Xin1-739/+481
* 'po-id' of github.com:bagasme/git-po: l10n: po-id for 2.40 (round 1)
2023-03-08Merge branch 'catalan' of github.com:Softcatala/git-poJiang Xin1-475/+663
* 'catalan' of github.com:Softcatala/git-po: l10n: Update Catalan translation
2023-03-08Merge branch 'fr_2.40.0_rnd1' of github.com:jnavila/gitJiang Xin1-706/+300
* 'fr_2.40.0_rnd1' of github.com:jnavila/git: l10n: fr: v2.40.0 rnd 2 l10n: fr: v2.40.0 rnd 1 l10n: fr: fix some typos
2023-03-08Merge branch 'master' of github.com:nafmo/git-l10n-svJiang Xin1-471/+294
* 'master' of github.com:nafmo/git-l10n-sv: l10n: sv.po: Update Swedish translation (5490t0f0u)
2023-03-08Merge branch 'master' of github.com:alshopov/git-poJiang Xin1-494/+312
* 'master' of github.com:alshopov/git-po: l10n: bg.po: Updated Bulgarian translation (5490t)
2023-03-08Merge branch 'turkish' of github.com:bitigchi/git-poJiang Xin1-474/+297
* 'turkish' of github.com:bitigchi/git-po: l10n: tr: Update Turkish translations for v.2.40.0
2023-03-07l10n: zh_CN v2.40.0 round 1Fangyi Zhou1-647/+471
Reviewed-by: 依云 <lilydjwg@gmail.com> Signed-off-by: Fangyi Zhou <me@fangyi.io>