treewide: use enum for `odb_for_each_object()` flags
We've got a couple of callsites where we pass `odb_for_each_object()`
flags, but accept an `unsigned` flags field instead of the corresponding
enum. Adapt these to accept the enum type instead.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Mon, 30 Mar 2026 20:57:02 +0000 (13:57 -0700)]
Merge branch 'jw/object-name-bitset-to-enum'
The unsigned integer that is used as an bitset to specify the kind
of branches interpret_branch_name() function has been changed to
use a dedicated enum type.
* jw/object-name-bitset-to-enum:
object-name: turn INTERPRET_BRANCH_* constants into enum values
Junio C Hamano [Mon, 30 Mar 2026 20:57:00 +0000 (13:57 -0700)]
Merge branch 'jw/apply-corrupt-location'
"git apply" now reports the name of the input file along with the
line number when it encounters a corrupt patch, and correctly
resets the line counter when processing multiple patch files.
* jw/apply-corrupt-location:
apply: report input location in binary and garbage patch errors
apply: report input location in header parsing errors
apply: report the location of corrupt patches
Junio C Hamano [Fri, 27 Mar 2026 18:00:02 +0000 (11:00 -0700)]
Merge branch 'kh/doc-interpret-trailers-1'
Doc updates.
* kh/doc-interpret-trailers-1:
interpret-trailers: use placeholder instead of *
doc: config: convert trailers section to synopsis style
doc: interpret-trailers: normalize and fill out options
doc: interpret-trailers: convert to synopsis style
Junio C Hamano [Tue, 24 Mar 2026 19:31:34 +0000 (12:31 -0700)]
Merge branch 'ps/upload-pack-buffer-more-writes'
Reduce system overhead "git upload-pack" spends on relaying "git
pack-objects" output to the "git fetch" running on the other end of
the connection.
* ps/upload-pack-buffer-more-writes:
builtin/pack-objects: reduce lock contention when writing packfile data
csum-file: drop `hashfd_throughput()`
csum-file: introduce `hashfd_ext()`
sideband: use writev(3p) to send pktlines
wrapper: introduce writev(3p) wrappers
compat/posix: introduce writev(3p) wrapper
upload-pack: reduce lock contention when writing packfile data
upload-pack: prefer flushing data over sending keepalive
upload-pack: adapt keepalives based on buffering
upload-pack: fix debug statement when flushing packfile data
Junio C Hamano [Tue, 24 Mar 2026 19:31:32 +0000 (12:31 -0700)]
Merge branch 'ps/history-split'
"git history" learned the "split" subcommand.
* ps/history-split:
builtin/history: implement "split" subcommand
builtin/history: split out extended function to create commits
cache-tree: allow writing in-memory index as tree
add-patch: allow disabling editing of hunks
add-patch: add support for in-memory index patching
add-patch: remove dependency on "add-interactive" subsystem
add-patch: split out `struct interactive_options`
add-patch: split out header from "add-interactive.h"
Junio C Hamano [Mon, 23 Mar 2026 16:20:31 +0000 (09:20 -0700)]
Merge branch 'bb/imap-send-openssl-4.0-prep'
"imap-send" used to use functions whose use is going to be removed
with OpenSSL 4.0; rewrite them using public API that has been
available since OpenSSL 1.1 since 2016 or so.
* bb/imap-send-openssl-4.0-prep:
imap-send: move common code into function host_matches()
imap-send: use the OpenSSL API to access the subject common name
imap-send: use the OpenSSL API to access the subject alternative names
Junio C Hamano [Sat, 21 Mar 2026 16:25:58 +0000 (09:25 -0700)]
Merge branch 'master' of https://github.com/j6t/git-gui
* 'master' of https://github.com/j6t/git-gui:
git-gui: grey out comment lines in commit message
git-gui: wire up "git-gui--askyesno" with Meson
git-gui: massage "git-gui--askyesno" with "generate-script.sh"
git-gui: prefer shell at "/bin/sh" with Meson
git-gui: fix use of GIT_CEILING_DIRECTORIES
git-gui: shift tabstops to account for the first column of patch text
Junio C Hamano [Sat, 21 Mar 2026 16:25:10 +0000 (09:25 -0700)]
Merge branch 'master' of https://github.com/j6t/gitk
* 'master' of https://github.com/j6t/gitk:
gitk: l10n: make PO headers identify the Gitk project
gitk: ignore generated POT file
gitk: i18n: use "Gitk" as package name in POT file
gitk: commit translation files without file information
gitk: support link color in the Preferences dialog
gitk: use config settings for head/tag colors
Introduce a new generic `odb_find_abbrev_len()` function as well as
source-specific callback functions. This makes the logic to compute the
required prefix length to make a given object unique fully pluggable.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
object-file: move logic to compute packed abbreviation length
Same as the preceding commit, move the logic that computes the minimum
required prefix length to make a given object ID unique for the packfile
store into a new function `packfile_store_find_abbrev_len()` that is
part of "packfile.c". This prepares for making the logic fully generic
via pluggable object databases.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
object-name: move logic to compute loose abbreviation length
The function `repo_find_unique_abbrev_r()` takes as input an object ID
as well as a minimum object ID length and returns the minimum required
prefix to make the object ID unique.
The logic that computes the abbreviation length for loose objects is
deeply tied to the loose object storage format. As such, it would fail
in case a different object storage format was used.
Prepare for making this logic generic to the backend by moving the logic
into a new `odb_source_loose_find_abbrev_len()` function that is part of
"object-file.c".
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The function `extend_abbrev_len()` computes the length of common hex
characters between two object IDs. This is done by:
- Making the caller provide the `hex` string for the needle object ID.
- Comparing every hex position of the haystack object ID with
`get_hex_char_from_oid()`.
Turning the binary representation into hex first is roundabout though:
we can simply compare the binary representation and give some special
attention to the final nibble.
Introduce a new function `oid_common_prefix_hexlen()` that does exactly
this and refactor the code to use the new function. This allows us to
drop the `struct min_abbrev_data::hex` field. Furthermore, this function
will be used in by some other callsites in subsequent commits.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
object-name: abbreviate loose object names without `disambiguate_state`
The function `find_short_object_filename()` takes an object ID and
computes the minimum required object name length to make it unique. This
is done by reusing the object disambiguation infrastructure, where we
iterate through every loose object and then update the disambiguate
state one by one.
Ultimately, we don't care about the disambiguate state though. It is
used because this infrastructure knows how to enumerate only those
objects that match a given prefix. But now that we have extended the
`odb_for_each_object()` function to do this for us we have an easier way
to do this. Consequently, we really only use the disambiguate state now
to propagate `struct min_abbrev_data`.
Refactor the code and drop this indirection so that we use `struct
min_abbrev_data` directly. This also allows us to drop some now-unused
logic from the disambiguate infrastructure.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
object-name: merge `update_candidates()` and `match_prefix()`
There's only a single callsite for `match_prefix()`, and that function
is a rather trivial wrapper of `update_candidates()`. Merge these two
functions into a single `update_disambiguate_state()` function.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The function `get_short_oid()` takes as input an abbreviated object ID
and tries to turn that object ID into the full object ID. This is done
by iterating through all objects that have the user-provided prefix. If
that yields exactly one object we know that the abbreviated object ID is
unambiguous, otherwise it is ambiguous and we print the list of objects
that match the prefix.
We iterate through all objects with the given prefix by calling both
`find_short_packed_object()` and `find_short_object_filename()`, which
is of course specific to the "files" backend. But we now have a generic
way to iterate through objects with a specific prefix.
Refactor the code to use `odb_for_each_object()` instead so that it
works with object backends different than the "files" backend.
Remove the now-unused `find_short_packed_object()` function.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The function `repo_collect_ambiguous()` is responsible for collecting
objects whose IDs match a specific prefix. The information is then
used to inform the user about which objects they could have meant in
case a short object ID is ambiguous.
The logic to do this uses the object disambiguation infrastructure and
calls into backend-specific functions to iterate through loose and
packed objects. This isn't really required anymore though: all we want
to do is to enumerate objects that have such a prefix and then append
those objects to a `struct oid_array`. This can be trivially achieved
in a generic way now that `odb_for_each_object()` has learned to yield
only objects that match such a prefix.
Refactor the code to use the backend-generic infrastructure instead.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
object-name: move logic to iterate through loose prefixed objects
The logic to iterate through loose objects that have a certain prefix is
currently hosted in "object-name.c". This logic reaches into specifics
of the loose object source, so it breaks once a different backend is
used for the object storage.
Move the logic to iterate through loose objects with a prefix into
"object-file.c". This is done by extending the for-each-object options
to support an optional prefix that is then honored by the loose source.
Naturally, we'll also have this support in the packfile store. This is
done in the next commit.
Furthermore, there are no users of the loose cache outside of
"object-file.c" anymore. As such, convert `odb_source_loose_cache()` to
have file scope.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The `odb_for_each_object()` function only accepts a bitset of flags. In
a subsequent commit we'll want to change object iteration to also
support iterating over only those objects that have a specific prefix.
While we could of course add the prefix to the function signature, or
alternatively introduce a new function, both of these options don't
really seem to be that sensible.
Instead, introduce a new `struct odb_for_each_object_options` that can
be passed to a new `odb_for_each_object_ext()` function. Splice through
the options structure into the respective object database sources.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
oidtree: extend iteration to allow for arbitrary return codes
The interface `cb_each()` iterates through a crit-bit tree and calls a
specific callback function for each of the contained items. The callback
function is expected to return either:
- `CB_CONTINUE` in case iteration shall continue.
- `CB_BREAK` to abort iteration.
This is needlessly restrictive though, as callers may want to return
arbitrary values and have them be bubbled up to the `cb_each()` call
site. In fact, this is a rather common pattern we have: whenever such a
callback function returns a non-zero error code, we abort iteration and
bubble up the code as-is.
Refactor both the crit-bit tree and oidtree subsystems to behave
accordingly.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The "oidtree.c" subsystem is rather small and self-contained and tends
to just work. It thus doesn't typically receive a lot of attention,
which has as a consequence that it's coding style is somewhat dated
nowadays.
Modernize the style of this subsystem a bit:
- Rename the `oidtree_iter()` function to `oidtree_each_cb()`.
- Rename `struct oidtree_iter_data` to `struct oidtree_each_data` to
match the renamed callback function type.
- Rename parameters and variables to clarify their intent.
- Add comments that explain what some of the functions do.
- Adapt the return value of `oidtree_contains()` to be a boolean.
This prepares for some changes to the subsystem that'll happen in the
next commit.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Johannes Sixt [Fri, 20 Mar 2026 08:23:32 +0000 (09:23 +0100)]
Merge branch 'jx/i18n-fix' of github.com:jiangxin/gitk
* 'jx/i18n-fix' of github.com:jiangxin/gitk:
gitk: l10n: make PO headers identify the Gitk project
gitk: ignore generated POT file
gitk: i18n: use "Gitk" as package name in POT file
Jeff King [Tue, 17 Mar 2026 23:02:23 +0000 (19:02 -0400)]
contrib/diff-highlight: do not highlight identical pairs
We pair lines for highlighting based on their position in the hunk. So
we should never see two identical lines paired, like:
-one
-two
+one
+something else
which would pair -one/+one, because that implies that the diff could
easily be shrunk by turning line "one" into context.
But there is (at least) one exception: removing a newline at the end of
a file will produce a diff like:
-foo
+foo
\No newline at end of file
And we will pair those two lines. As a result, we end up marking the
whole line, including the newline, as the shared prefix. And there's an
empty suffix.
The most obvious bug here is that when we try to print the highlighted
lines, we remove the trailing newline from the suffix, but do not bother
with the prefix (under the assumption that there had to be a difference
_somewhere_ in the line, and thus the prefix would not eat all the way
up to the newline). And so you get an extra line like:
-foo
+foo
\No newline at end of file
This is obviously ugly, but also causes interactive.diffFilter to
(rightly) complain that the input and output do not match their lines
1-to-1.
This could easily be fixed by chomping the prefix, too, but I think the
problem is deeper. For one, I suspect some of the other logic gets
confused by forming an array with zero-indexed element "3" in a
3-element array. But more importantly, we try not to highlight whole
lines, as there's nothing interesting to show there. So let's catch this
early in is_pair_interesting() and bail to our usual passthrough
strategy.
Reported-by: Scott Baker <scott@perturb.org> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jiang Xin [Thu, 19 Mar 2026 09:11:17 +0000 (17:11 +0800)]
gitk: l10n: make PO headers identify the Gitk project
Commit f697d08 (gitk: i18n: use "Gitk" as package name in POT file,
2026-03-19) updated the generated POT template to use "Gitk" in its
Project-Id-Version header. Several existing PO files still carry older
header values such as "git" or "git-gui", so they do not consistently
identify themselves as Gitk translations.
Update the Project-Id-Version field in all Gitk PO files so that they
identify the Gitk project consistently.
The "Project-Id-Version" field in the PO header helps tools identify
which project a PO file belongs to. For example, Git's
"git-po-helper" uses it to choose project-specific checks and POT
handling rules. Without this change, some Gitk PO files are
misidentified because their headers still refer to other projects.
Junio C Hamano [Thu, 19 Mar 2026 22:39:02 +0000 (15:39 -0700)]
cocci: strbuf.buf is never NULL
We recently noticed one old code from 19 years ago protecting
against an ancient strbuf convention that the .buf member can be
NULL for an empty strbuf. As that is no longer the case in the
modern codebase, let's catch such a construct.
Jiang Xin [Thu, 19 Mar 2026 09:08:47 +0000 (17:08 +0800)]
gitk: ignore generated POT file
"po/gitk.pot" is generated from the source for translation maintenance.
Ignore it in the working tree so regenerating the template does not
introduce unnecessary noise in `git status`.
Jiang Xin [Thu, 19 Mar 2026 09:06:25 +0000 (17:06 +0800)]
gitk: i18n: use "Gitk" as package name in POT file
Use "Gitk" instead of the placeholder "PACKAGE" in the header of the
generated po/gitk.pot file. In particular, the "Project-Id-Version"
field in the header entry should be set to:
"Project-Id-Version: Gitk\n"
New PO files generated from this POT file will inherit that package
name.
René Scharfe [Thu, 19 Mar 2026 16:24:40 +0000 (17:24 +0100)]
commit-reach: simplify cleanup of remaining bitmaps in ahead_behind ()
Don't bother extracting the last few remaining prio_queue items in
order when we only want to free their associated bitmaps; just iterate
over the item array.
Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Thu, 19 Mar 2026 16:54:56 +0000 (09:54 -0700)]
Merge branch 'ps/unit-test-c-escape-names.txt'
The unit test helper function was taught to use backslash +
mnemonic notation for certain control characters like "\t", instead
of octal notation like "\011".
Junio C Hamano [Thu, 19 Mar 2026 07:15:59 +0000 (00:15 -0700)]
rerere: update to modern representation of empty strbufs
Back when b4833a2c (rerere: Fix use of an empty strbuf.buf,
2007-09-26) was written, a freshly initialized empty strbuf
had NULL in its .buf member, with .len set to 0. The code this
patch touches in rerere.c was written to _fix_ the original code
that assumed that the .buf member is always pointing at a NUL-terminated
string, even for an empty string, which did not hold back then.
That changed in b315c5c0 (strbuf change: be sure ->buf is never ever
NULL., 2007-09-27), and it has again become safe to assume that .buf
is never NULL, and .buf[0] has '\0' for an empty string (i.e., a
strbuf with its .len member set to 0).
A funny thing is, this piece of code has been moved around from
builtin-rerere.c to rerere.c and also adjusted for updates to the
hash function API over the years, but nobody bothered to question
if this special casing for an empty strbuf was still necessary:
b4833a2c62 (rerere: Fix use of an empty strbuf.buf, 2007-09-26) 5b2fd95606 (rerere: Separate libgit and builtin functions, 2008-07-09) 9126f0091f (fix openssl headers conflicting with custom SHA1 implementations, 2008-10-01) c0f16f8e14 (rerere: factor out handle_conflict function, 2018-08-05) 0d7c419a94 (rerere: convert to use the_hash_algo, 2018-10-15) 0578f1e66a (global: adapt callers to use generic hash context helpers, 2025-01-31)
Finally get rid of the special casing that was unnecessary for the
last 19 years.
Every compilation unit in Git is expected to include "git-compat-util.h"
first, either directly or indirectly via "builtin.h". This header papers
over differences between platforms so that we can expect the typical
POSIX functions to exist. Furthermore, it provides functionality that we
end up using everywhere.
This header is thus quite heavy as a consequence. Preprocessing it as a
standalone unit via `clang -E git-compat-util.h` yields over 23,000
lines of code overall. Naturally, it takes quite some time to compile
all of this.
Luckily, this is exactly the kind of use case that precompiled headers
aim to solve: instead of recompiling it every single time, we compile it
once and then link the result into the executable. If include guards are
set up properly it means that the file won't need to be reprocessed.
Set up such a precompiled header for "git-compat-util.h" and wire it up
via Meson. This causes Meson to implicitly include the precompiled
header in all compilation units. With GCC and Clang for example this is
done via the "-include" statement [1].
This leads to a significant speedup when performing full builds:
Benchmark 1: ninja (rev = HEAD~)
Time (mean ± σ): 14.467 s ± 0.126 s [User: 248.133 s, System: 31.298 s]
Range (min … max): 14.195 s … 14.633 s 10 runs
Benchmark 2: ninja (rev = HEAD)
Time (mean ± σ): 10.307 s ± 0.111 s [User: 173.290 s, System: 23.998 s]
Range (min … max): 10.030 s … 10.433 s 10 runs
Summary
ninja (rev = HEAD) ran
1.40 ± 0.02 times faster than ninja (rev = HEAD~)
In the next commit we're about to introduce a precompiled header for
"git-compat-util.h". The consequence of this change is that we'll
implicitly include that header for every compilation unit that uses the
precompiled headers.
This is okay for our "normal" library sources and our builtins. But some
of our compatibility sources do not include the header on purpose, and
doing so would cause compilation errors.
Prepare for this change by splitting out compatibility sources into
their static library. Like this, we can selectively enable precompiled
headers for the library sources.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-compat-util.h: move warning infra to prepare for PCHs
The "git-compat-util.h" header is supposed to be the first header
included by every code compilation unit. As such, a subsequent commit
will start to precompile this header to speed up compilation of Git.
This will cause an issue though with the way that we have set up the
"-Wsign-compare" warnings. It is expected that any compilation unit that
fails with that compiler warning sets `DISABLE_SIGN_COMPARE_WARNINGS`
before including "git-compat-util.h". If so, we'll disable the warning
right away via a compiler pragma.
But with precompiled headers we do not know ahead of time whether the
code unit wants to disable those warnings, and thus we'll have to
precompile the header without defining `DISABLE_SIGN_COMPARE_WARNINGS`.
But as the pragma statement is wrapped by our include guards, the second
include of that file will not have the desired effect of disabling the
warnings anymore.
We could fix this issue by declaring a new macro that compilation units
are expected to invoke after having included the file. In retrospect,
that would have been the better way to handle this as it allows for
more flexibility: we could for example toggle the warning for specific
code blocks, only. But changing this now would require a bunch of
changes, and the churn feels excessive for what we gain.
Instead, prepare for the precompiled headers by moving the code outside
of the include guards.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
We have a bunch of scripts used by our different build systems that are
all located in the top-level directory. Now that we have introduced the
new "tools/" directory though we have a better home for them.
Move the scripts into the "tools/" directory.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
contrib: move "update-unicode.sh" script into "tools/"
The "update-unicode.sh" script is used to update the unicode data
compiled into Git whenever a new version of the Unicode standard has
been released. As such, it is a natural part of our developer-facing
tooling, and its presence in "contrib/" is misleading.
Promote the script into the new "tools/" directory.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
contrib: move "coverage-diff.sh" script into "tools/"
The "coverage-diff.sh" script can be used to get information about test
coverage fro the Git codebase. It is thus rather specific to our build
and test infrastructure and part of the developer-facing tooling. The
fact that this script is part of "contrib/" is thus rather misleading
and a historic wart.
Promote the tool into the new "tools/" directory.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
contrib: move "coccinelle/" directory into "tools/"
The Coccinelle tool is an ingrained part of our build infrastructure. It
is executed by our CI to detect antipatterns and is used to detect
misuses of certain interfaces. It's presence in "contrib/" is thus
rather misleading.
Promote the configuration into the new "tools/" directory.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
According to its readme, the "contrib/" directory's main intent is to
collect stuff that is not an official part of Git, either because it is
too specialized or because it is still considered experimental. The
reality tells a bit of a different story though: while it _does_ contain
such things, it also contains other things:
- Our credential helpers, which are being distributed by many
packagers nowadays and which can be considered "stable".
- A bunch of tooling that relates to our build and test
infrastructure.
Especially the second category is somewhat of a sore spot. You really
wouldn't expect build-related tooling to be considered an optional part
of Git. Quite the opposite.
Create a new top-level "tools/" directory to fix this discrepancy. This
directory will contain all kind of tools that are related to our build
infrastructure and that Git developers are likely to use day to day.
For now, this directory doesn't contain anything yet except for a
readme and a Meson skeleton. This will change in subsequent commits.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Aditya [Wed, 18 Mar 2026 20:07:35 +0000 (20:07 +0000)]
t2107: modernize path existence check
Replace '! test -f' with 'test_path_is_missing' to get better
debugging information by reporting loudly what expectation was
not met when the assertion fails.
Signed-off-by: Aditya <adityabnw07@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jialong Wang [Wed, 18 Mar 2026 19:09:42 +0000 (15:09 -0400)]
object-name: turn INTERPRET_BRANCH_* constants into enum values
Replace the INTERPRET_BRANCH_* preprocessor constants with enum
values and use that type where these flags are stored or passed
around.
These flags describe which kinds of branches may be considered during
branch-name interpretation, so represent them as an enum describing
branch kinds while keeping the existing bitmask semantics and
INTERPRET_BRANCH_* element names.
Signed-off-by: Jialong Wang <jerrywang183@yahoo.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Mathias Rav [Wed, 11 Mar 2026 06:44:06 +0000 (06:44 +0000)]
merge-file: fix BUG when --object-id is used in a worktree
The `--object-id` option was added in commit e1068f0ad4
(merge-file: add an option to process object IDs, 2023-11-01)
together with a call to setup_git_directory() to avoid crashing
when run outside a repository.
However, the call to setup_git_directory() is redundant when run inside
a repository, as merge-file runs with RUN_SETUP_GENTLY, so the
repository has already been set up. The redundant call is harmless
when linked worktrees are not used, but in a linked worktree,
the repo_set_gitdir() function ends up being called twice.
Calling repo_set_gitdir() used to be silently accepted, but commit 2816b748e5 (odb: handle changing a repository's commondir, 2025-11-19)
changed this to a BUG in repository.c with the error message:
"cannot reinitialize an already-initialized object directory".
Guard the redundant call to setup_git_directory() behind a repo pointer
check, to ensure that we continue to give the correct "not a git repo"
error whilst avoiding the BUG when running in a linked worktree.
Signed-off-by: Mathias Rav <m@git.strova.dk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Tue, 17 Mar 2026 21:40:07 +0000 (22:40 +0100)]
use commit_stack instead of prio_queue in LIFO mode
A prio_queue with a NULL compare function acts as a stack -- the last
element in is the first one out (LIFO). Use an actual commit_stack
instead where possible, as it documents the behavior better, provides
type safety and saves some memory because prio_queue stores an
additional tie-breaking counter per element.
Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jialong Wang [Tue, 17 Mar 2026 16:23:21 +0000 (12:23 -0400)]
apply: report input location in binary and garbage patch errors
Several binary parsing paths in apply.c still report only line
numbers. When more than one patch input is fed to a single
invocation, that does not tell the user which input the line belongs
to.
Report the patch input location for corrupt and unrecognized binary
patches, as well as the "patch with only garbage" case, and update
the related tests.
Signed-off-by: Jialong Wang <jerrywang183@yahoo.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jialong Wang [Tue, 17 Mar 2026 16:23:20 +0000 (12:23 -0400)]
apply: report input location in header parsing errors
Several header parsing errors in apply.c still report only line
numbers. When applying more than one input, that does not tell the
user which input the line belongs to.
Report the patch input location for these header parsing errors, and
update the related tests.
While touching parse_git_diff_header(), update the helper state to use
the current header line when reporting these errors.
Signed-off-by: Jialong Wang <jerrywang183@yahoo.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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