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22138 commits

Author SHA1 Message Date
Patrick Steinhardt 965f8991e5 refs: pass repo when retrieving submodule ref store
Looking up submodule ref stores has two deficiencies:

  - The initialized subrepo will be attributed to `the_repository`.

  - The submodule ref store will be tracked in a global map.

This makes it impossible to have submodule ref stores for a repository
other than `the_repository`.

Modify the function to accept the parent repository as parameter and
move the global map into `struct repository`. Like this it becomes
possible to look up submodule ref stores for arbitrary repositories.

Note that this also adds a new reference to `the_repository` in
`resolve_gitlink_ref()`, which is part of the refs interfaces. This will
get adjusted in the next patch.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-17 10:33:37 -07:00
Junio C Hamano 1e00d22ec5 Merge branch 'ds/scalar-reconfigure-all-fix'
Scalar fix.

* ds/scalar-reconfigure-all-fix:
  scalar: avoid segfault in reconfigure --all
2024-05-15 09:52:55 -07:00
Junio C Hamano 068df18c90 Merge branch 'rs/external-diff-with-exit-code'
The "--exit-code" option of "git diff" command learned to work with
the "--ext-diff" option.

* rs/external-diff-with-exit-code:
  diff: fix --exit-code with external diff
  diff: report unmerged paths as changes in run_diff_cmd()
2024-05-15 09:52:54 -07:00
Junio C Hamano f9d4eaf86c Merge branch 'jp/tag-trailer'
"git tag" learned the "--trailer" option to futz with the trailers
in the same way as "git commit" does.

* jp/tag-trailer:
  builtin/tag: add --trailer option
  builtin/commit: refactor --trailer logic
  builtin/commit: use ARGV macro to collect trailers
2024-05-15 09:52:53 -07:00
Junio C Hamano fe3ccc7aab Merge branch 'ps/config-subcommands'
The operation mode options (like "--get") the "git config" command
uses have been deprecated and replaced with subcommands (like "git
config get").

* ps/config-subcommands:
  builtin/config: display subcommand help
  builtin/config: introduce "edit" subcommand
  builtin/config: introduce "remove-section" subcommand
  builtin/config: introduce "rename-section" subcommand
  builtin/config: introduce "unset" subcommand
  builtin/config: introduce "set" subcommand
  builtin/config: introduce "get" subcommand
  builtin/config: introduce "list" subcommand
  builtin/config: pull out function to handle `--null`
  builtin/config: pull out function to handle config location
  builtin/config: use `OPT_CMDMODE()` to specify modes
  builtin/config: move "fixed-value" option to correct group
  builtin/config: move option array around
  config: clarify memory ownership when preparing comment strings
2024-05-15 09:52:53 -07:00
Junio C Hamano b7a1d47ba5 Merge branch 'js/unit-test-suite-runner'
The "test-tool" has been taught to run testsuite tests in parallel,
bypassing the need to use the "prove" tool.

* js/unit-test-suite-runner:
  cmake: let `test-tool` run the unit tests, too
  ci: use test-tool as unit test runner on Windows
  t/Makefile: run unit tests alongside shell tests
  unit tests: add rule for running with test-tool
  test-tool run-command testsuite: support unit tests
  test-tool run-command testsuite: remove hardcoded filter
  test-tool run-command testsuite: get shell from env
  t0080: turn t-basic unit test into a helper
2024-05-15 09:52:52 -07:00
Junio C Hamano 83f1add914 Git 2.45.1
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Sync with Git 2.45.1

* tag 'v2.45.1': (42 commits)
  Git 2.45.1
  Git 2.44.1
  Git 2.43.4
  Git 2.42.2
  Git 2.41.1
  Git 2.40.2
  Git 2.39.4
  fsck: warn about symlink pointing inside a gitdir
  core.hooksPath: add some protection while cloning
  init.templateDir: consider this config setting protected
  clone: prevent hooks from running during a clone
  Add a helper function to compare file contents
  init: refactor the template directory discovery into its own function
  find_hook(): refactor the `STRIP_EXTENSION` logic
  clone: when symbolic links collide with directories, keep the latter
  entry: report more colliding paths
  t5510: verify that D/F confusion cannot lead to an RCE
  submodule: require the submodule path to contain directories only
  clone_submodule: avoid using `access()` on directories
  submodules: submodule paths must not contain symlinks
  ...
2024-05-13 18:29:15 -07:00
Junio C Hamano b077cf2679 Merge branch 'jc/no-default-attr-tree-in-bare'
Git 2.43 started using the tree of HEAD as the source of attributes
in a bare repository, which has severe performance implications.
For now, revert the change, without ripping out a more explicit
support for the attr.tree configuration variable.

* jc/no-default-attr-tree-in-bare:
  stop using HEAD for attributes in bare repository by default
2024-05-13 10:19:46 -07:00
Junio C Hamano 71bd0c8a61 Merge branch 'tb/attr-limits'
The maximum size of attribute files is enforced more consistently.

* tb/attr-limits:
  attr.c: move ATTR_MAX_FILE_SIZE check into read_attr_from_buf()
2024-05-13 10:19:46 -07:00
Junio C Hamano 328f164496 Merge branch 'jc/test-workaround-broken-mv'
Tests that try to corrupt in-repository files in chunked format did
not work well on macOS due to its broken "mv", which has been
worked around.

* jc/test-workaround-broken-mv:
  t/lib-chunk: work around broken "mv" on some vintage of macOS
2024-05-13 10:19:45 -07:00
Junio C Hamano 20ceead5c3 Merge branch 'bb/rgb-12-bit-colors'
The color parsing code learned to handle 12-bit RGB colors, spelled
as "#RGB" (in addition to "#RRGGBB" that is already supported).

* bb/rgb-12-bit-colors:
  color: add support for 12-bit RGB colors
  t/t4026-color: add test coverage for invalid RGB colors
  t/t4026-color: remove an extra double quote character
2024-05-08 10:18:47 -07:00
Junio C Hamano c2b36ab32e Merge branch 'bc/zsh-compatibility'
zsh can pretend to be a normal shell pretty well except for some
glitches that we tickle in some of our scripts. Work them around
so that "vimdiff" and our test suite works well enough with it.

* bc/zsh-compatibility:
  vimdiff: make script and tests work with zsh
  t4046: avoid continue in &&-chain for zsh
2024-05-08 10:18:46 -07:00
Junio C Hamano 80dbfac2aa Merge branch 'rj/add-p-typo-reaction'
When the user responds to a prompt given by "git add -p" with an
unsupported command, list of available commands were given, which
was too much if the user knew what they wanted to type but merely
made a typo.  Now the user gets a much shorter error message.

* rj/add-p-typo-reaction:
  add-patch: response to unknown command
  add-patch: do not show UI messages on stderr
2024-05-08 10:18:45 -07:00
Junio C Hamano 2c34e4e747 Merge branch 'rh/complete-symbolic-ref'
Command line completion script (in contrib/) learned to complete
"git symbolic-ref" a bit better (you need to enable plumbing
commands to be completed with GIT_COMPLETION_SHOW_ALL_COMMANDS).

* rh/complete-symbolic-ref:
  completion: add docs on how to add subcommand completions
  completion: improve docs for using __git_complete
  completion: add 'symbolic-ref'
2024-05-08 10:18:45 -07:00
Junio C Hamano f526a4f314 Merge branch 'ps/the-index-is-no-more'
The singleton index_state instance "the_index" has been eliminated
by always instantiating "the_repository" and replacing references
to "the_index"  with references to its .index member.

* ps/the-index-is-no-more:
  repository: drop `initialize_the_repository()`
  repository: drop `the_index` variable
  builtin/clone: stop using `the_index`
  repository: initialize index in `repo_init()`
  builtin: stop using `the_index`
  t/helper: stop using `the_index`
2024-05-08 10:18:44 -07:00
Junio C Hamano c5c9acf77d Merge branch 'bc/credential-scheme-enhancement'
The credential helper protocol, together with the HTTP layer, have
been enhanced to support authentication schemes different from
username & password pair, like Bearer and NTLM.

* bc/credential-scheme-enhancement:
  credential: add method for querying capabilities
  credential-cache: implement authtype capability
  t: add credential tests for authtype
  credential: add support for multistage credential rounds
  t5563: refactor for multi-stage authentication
  docs: set a limit on credential line length
  credential: enable state capability
  credential: add an argument to keep state
  http: add support for authtype and credential
  docs: indicate new credential protocol fields
  credential: add a field called "ephemeral"
  credential: gate new fields on capability
  credential: add a field for pre-encoded credentials
  http: use new headers for each object request
  remote-curl: reset headers on new request
  credential: add an authtype field
2024-05-08 10:18:44 -07:00
Junio C Hamano d25ad94df6 Merge branch 'ps/ci-test-with-jgit'
Tests to ensure interoperability between reftable written by jgit
and our code have been added and enabled in CI.

* ps/ci-test-with-jgit:
  t0612: add tests to exercise Git/JGit reftable compatibility
  t0610: fix non-portable variable assignment
  t06xx: always execute backend-specific tests
  ci: install JGit dependency
  ci: make Perforce binaries executable for all users
  ci: merge scripts which install dependencies
  ci: fix setup of custom path for GitLab CI
  ci: merge custom PATH directories
  ci: convert "install-dependencies.sh" to use "/bin/sh"
  ci: drop duplicate package installation for "linux-gcc-default"
  ci: skip sudo when we are already root
  ci: expose distro name in dockerized GitHub jobs
  ci: rename "runs_on_pool" to "distro"
2024-05-08 10:18:44 -07:00
Junio C Hamano 5aec7231c8 Merge branch 'ps/reftable-write-optim'
Code to write out reftable has seen some optimization and
simplification.

* ps/reftable-write-optim:
  reftable/block: reuse compressed array
  reftable/block: reuse zstream when writing log blocks
  reftable/writer: reset `last_key` instead of releasing it
  reftable/writer: unify releasing memory
  reftable/writer: refactorings for `writer_flush_nonempty_block()`
  reftable/writer: refactorings for `writer_add_record()`
  refs/reftable: don't recompute committer ident
  reftable: remove name checks
  refs/reftable: skip duplicate name checks
  refs/reftable: perform explicit D/F check when writing symrefs
  refs/reftable: fix D/F conflict error message on ref copy
2024-05-08 10:18:43 -07:00
Derrick Stolee b64b0df9da scalar: avoid segfault in reconfigure --all
During the latest v2.45.0 update, 'scalar reconfigure --all' started to
segfault on my machine. Breaking it down via the debugger, it was
faulting on a NULL reference to the_hash_algo, which is a macro pointing
to the_repository->hash_algo.

In my case, this is due to one of my repositories having a detached HEAD,
which requires get_oid_hex() to parse that the HEAD reference is valid.
Another way to cause a failure is to use the "includeIf.onbranch" config
key, which will lead to a BUG() statement.

My first inclination was to try to refactor cmd_reconfigure() to execute
'git for-each-repo' instead of this loop. In addition to the difficulty
of executing 'scalar reconfigure' within 'git for-each-repo', it would
be difficult to perform the clean-up logic for non-existent repos if we
relied on that child process.

Instead, I chose to move the temporary repo to be within the loop and
reinstate the_repository to its old value after we are done performing
logic on the current array item.

Add tests to t9210-scalar.sh to test 'scalar reconfigure --all' with
multiple registered repos. There are two different ways that the old
use of the_repository could trigger bugs. These issues are being solved
independently to be more careful about the_repository being
uninitialized, but the change in this patch around the use of
the_repository is still a good safety precaution.

Co-authored-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-07 17:51:12 -07:00
John Passaro 066cef7707 builtin/tag: add --trailer option
git-tag supports interpreting trailers from an annotated tag message,
using --list --format="%(trailers)". However, the available methods to
add a trailer to a tag message (namely -F or --editor) are not as
ergonomic.

In a previous patch, we moved git-commit's implementation of its
--trailer option to the trailer.h API. Let's use that new function to
teach git-tag the same --trailer option, emulating as much of
git-commit's behavior as much as possible.

Helped-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: John Passaro <john.a.passaro@gmail.com>
Acked-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-07 10:06:03 -07:00
Jeff King cc75e4a08f t/Makefile: run unit tests alongside shell tests
Add a wrapper script to allow `prove` to run both shell tests and unit
tests from a single invocation. This avoids issues around running prove
twice in CI, as discussed in [1].

Additionally, this moves the unit tests into the main dev workflow, so
that errors can be spotted more quickly. Accordingly, we remove the
separate unit tests step for Linux CI. (We leave the Windows CI
unit-test step as-is, because the sharding scheme there involves
selecting specific test files rather than running `make test`.)

[1] https://lore.kernel.org/git/pull.1613.git.1699894837844.gitgitgadget@gmail.com/

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 14:06:35 -07:00
Josh Steadmon 5bbc8c927f unit tests: add rule for running with test-tool
In the previous commit, we added support in test-tool for running
collections of unit tests. Now, add rules in t/Makefile for running in
this way.

This new rule can be executed from the top-level Makefile via
`make DEFAULT_UNIT_TEST_TARGET=unit-tests-test-tool unit-tests`, or by
setting DEFAULT_UNIT_TEST_TARGET in config.mak.

Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 14:06:35 -07:00
Josh Steadmon a2b55e2506 test-tool run-command testsuite: support unit tests
Teach the testsuite runner in `test-tool run-command testsuite` how to
run unit tests: if TEST_SHELL_PATH is not set, run the programs directly
from CWD, rather than defaulting to "sh" as an interpreter.

With this change, you can now use test-tool to run the unit tests:
$ make
$ cd t/unit-tests/bin
$ ../../helper/test-tool run-command testsuite

This should be helpful on Windows to allow running tests without
requiring Perl (for `prove`), as discussed in [1] and [2].

This again breaks backwards compatibility, as it is now required to set
TEST_SHELL_PATH properly for executing shell scripts, but again, as
noted in [2], there are no longer any such invocations in our codebase.

[1] https://lore.kernel.org/git/nycvar.QRO.7.76.6.2109091323150.59@tvgsbejvaqbjf.bet/
[2] https://lore.kernel.org/git/850ea42c-f103-68d5-896b-9120e2628686@gmx.de/

Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 14:06:34 -07:00
Josh Steadmon d28c5a520f test-tool run-command testsuite: remove hardcoded filter
`test-tool run-command testsuite` currently assumes that it will only be
running the shell test suite, and therefore filters out anything that
does not match a hardcoded pattern of "t[0-9][0-9][0-9][0-9]-*.sh".

Later in this series, we'll adapt `test-tool run-command testsuite` to
also support unit tests, which do not follow the same naming conventions
as the shell tests, so this hardcoded pattern is inconvenient.

Since `testsuite` also allows specifying patterns on the command-line,
let's just remove this pattern. As noted in [1], there are no longer any
uses of `testsuite` in our codebase, it should be OK to break backwards
compatibility in this case. We also add a new filter to avoid trying to
execute "." and "..", so that users who wish to execute every test in a
directory can do so without specifying a pattern.

[1] https://lore.kernel.org/git/850ea42c-f103-68d5-896b-9120e2628686@gmx.de/

Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 14:06:34 -07:00
Josh Steadmon 22f0df7a09 test-tool run-command testsuite: get shell from env
When running tests through `test-tool run-command testsuite`, we
currently hardcode `sh` as the command interpreter. As discussed in [1],
this is incorrect, and we should be using the shell set in
TEST_SHELL_PATH instead.

Add a shell_path field in struct testsuite so that we can pass this to
the task runner callback. If this is non-null, we'll use it as the
argv[0] of the subprocess. Otherwise, we'll just execute the test
program directly. We will use this feature in a later commit to enable
running binary executable unit tests.

However, for now when setting up the struct testsuite in testsuite(),
use the value of TEST_SHELL_PATH if it's set, otherwise keep the
original behavior by defaulting to `sh`.

[1] https://lore.kernel.org/git/20240123005913.GB835964@coredump.intra.peff.net/

Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 14:06:34 -07:00
Josh Steadmon 80bb227e41 t0080: turn t-basic unit test into a helper
While t/unit-tests/t-basic.c uses the unit-test framework added in
e137fe3b29 (unit tests: add TAP unit test framework, 2023-11-09), it is
not a true unit test in that it intentionally fails in order to exercise
various codepaths in the unit-test framework. Thus, we intentionally
exclude it when running unit tests through the various t/Makefile
targets. Instead, it is executed by t0080-unit-test-output.sh, which
verifies its output follows the TAP format expected for the various
pass, skip, or fail cases.

As such, it makes more sense for t-basic to be a helper item for
t0080-unit-test-output.sh, so let's move it to
t/helper/test-example-tap.c and adjust Makefiles as necessary.

Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 14:06:34 -07:00
Patrick Steinhardt 7b91d310ce builtin/config: display subcommand help
Until now, `git config -h` would have printed help for the old-style
syntax. Now that all modes have proper subcommands though it is
preferable to instead display the subcommand help.

Drop the `NO_INTERNAL_HELP` flag to do so. While at it, drop the help
mismatch in t0450 and add the `--get-colorbool` option to the usage such
that git-config(1)'s synopsis and `git config -h` match.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 11:50:10 -07:00
Patrick Steinhardt 3cbace5ee0 builtin/config: introduce "edit" subcommand
Introduce a new "edit" subcommand to git-config(1). Please refer to
preceding commits regarding the motivation behind this change.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 11:50:10 -07:00
Patrick Steinhardt 15dad20c3f builtin/config: introduce "remove-section" subcommand
Introduce a new "remove-section" subcommand to git-config(1). Please
refer to preceding commits regarding the motivation behind this change.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 11:50:10 -07:00
Patrick Steinhardt 3418e96f37 builtin/config: introduce "rename-section" subcommand
Introduce a new "rename-section" subcommand to git-config(1). Please
refer to preceding commits regarding the motivation behind this change.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 11:50:09 -07:00
Patrick Steinhardt 95ea69c67b builtin/config: introduce "unset" subcommand
Introduce a new "unset" subcommand to git-config(1). Please refer to
preceding commits regarding the motivation behind this change.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 11:50:09 -07:00
Patrick Steinhardt 00bbdde141 builtin/config: introduce "set" subcommand
Introduce a new "set" subcommand to git-config(1). Please refer to
preceding commits regarding the motivation behind this change.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 11:50:09 -07:00
Patrick Steinhardt 4e51389000 builtin/config: introduce "get" subcommand
Introduce a new "get" subcommand to git-config(1). Please refer to
preceding commits regarding the motivation behind this change.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 11:50:09 -07:00
Patrick Steinhardt 14970509c6 builtin/config: introduce "list" subcommand
While git-config(1) has several modes, those modes are not exposed with
subcommands but instead by specifying action flags like `--unset` or
`--list`. This user interface is not really in line with how our more
modern commands work, where it is a lot more customary to say e.g. `git
remote list`. Furthermore, to add to the confusion, git-config(1) also
allows the user to request modes implicitly by just specifying the
correct number of arguments. Thus, `git config foo.bar` will retrieve
the value of "foo.bar" while `git config foo.bar baz` will set it to
"baz".

Overall, this makes for a confusing interface that could really use a
makeover. It hurts discoverability of what you can do with git-config(1)
and is comparatively easy to get wrong. Converting the command to have
subcommands instead would go a long way to help address these issues.

One concern in this context is backwards compatibility. Luckily, we can
introduce subcommands without breaking backwards compatibility at all.
This is because all the implicit modes of git-config(1) require that the
first argument is a properly formatted config key. And as config keys
_must_ have a dot in their name, any value without a dot would have been
discarded by git-config(1) previous to this change. Thus, given that
none of the subcommands do have a dot, they are unambiguous.

Introduce the first such new subcommand, which is "git config list". To
retain backwards compatibility we only conditionally use subcommands and
will fall back to the old syntax in case no subcommand was detected.
This should help to transition to the new-style syntax until we
eventually deprecate and remove the old-style syntax.

Note that the way we handle this we're duplicating some functionality
across old and new syntax. While this isn't pretty, it helps us to
ensure that there really is no change in behaviour for the old syntax.

Amend tests such that we run them both with old and new style syntax.
As tests are now run twice, state from the first run may be still be
around in the second run and thus cause tests to fail. Add cleanup logic
as required to fix such tests.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 11:50:08 -07:00
Patrick Steinhardt daa3325024 builtin/config: use OPT_CMDMODE() to specify modes
The git-config(1) command has various different modes which are
accessible via e.g. `--get-urlmatch` or `--unset-all`. These modes are
declared with `OPT_BIT()`, which causes two minor issues:

  - The respective modes also have a negated form `--no-get-urlmatch`,
    which is unintended.

  - We have to manually handle exclusiveness of the modes.

Switch these options to instead use `OPT_CMDMODE()`, which is made
exactly for this usecase. Remove the now-unneeded check that only a
single mode is given, which is now handled by the parse-options
interface.

While at it, format optional placeholders for arguments to conform to
our style guidelines by using `[<placeholder>]`.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 11:50:07 -07:00
René Scharfe 11be65cfa4 diff: fix --exit-code with external diff
You can ask the diff machinery to let the exit code indicate whether
there are changes, e.g. with --exit-code.  It as two ways to calculate
that bit: The quick one assumes blobs with different hashes have
different content, and the more elaborate way actually compares the
contents, possibly applying transformations like ignoring whitespace.

Always use the slower path by setting the flag diff_from_contents,
because any of the files could have an external diff driver set via an
attribute, which might consider binary differences irrelevant, like e.g.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 10:23:42 -07:00
René Scharfe 7b30c3ad2d diff: report unmerged paths as changes in run_diff_cmd()
You can ask the diff machinery to let the exit code indicate whether
there are changes, e.g. with --quiet.  It as two ways to calculate that
bit: The quick one assumes blobs with different hashes have different
content, and the more elaborate way actually compares the contents,
possibly applying transformations like ignoring whitespace.

The quick way considers an unmerged file to be a change and reports
exit code 1, which makes sense.

The slower path uses the struct diff_options member found_changes to
indicate whether the blobs differ even with the transformations applied.
It's not set for unmerged files, though, resulting in exit code 0.

Set found_changes in run_diff_cmd() for unmerged files, for a consistent
exit code of 1 if there's an unmerged file, regardless of whether
whitespace is ignored.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-06 10:23:40 -07:00
Taylor Blau c793f9cb08 attr.c: move ATTR_MAX_FILE_SIZE check into read_attr_from_buf()
Commit 3c50032ff5 (attr: ignore overly large gitattributes files,
2022-12-01) added a defense-in-depth check to ensure that .gitattributes
blobs read from the index do not exceed ATTR_MAX_FILE_SIZE (100 MB).

But there were two cases added shortly after 3c50032ff5 was written
which do not apply similar protections:

  - 47cfc9bd7d (attr: add flag `--source` to work with tree-ish,
    2023-01-14)

  - 4723ae1007 (attr.c: read attributes in a sparse directory,
    2023-08-11) added a similar

Ensure that we refuse to process a .gitattributes blob exceeding
ATTR_MAX_FILE_SIZE when reading from either an arbitrary tree object or
a sparse directory. This is done by pushing the ATTR_MAX_FILE_SIZE check
down into the low-level `read_attr_from_buf()`.

In doing so, plug a leak in `read_attr_from_index()` where we would
accidentally leak the large buffer upon detecting it is too large to
process.

(Since `read_attr_from_buf()` handles a NULL buffer input, we can remove
a NULL check before calling it in `read_attr_from_index()` as well).

Co-authored-by: Jeff King <peff@peff.net>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-03 12:44:16 -07:00
Junio C Hamano 51441e6460 stop using HEAD for attributes in bare repository by default
With 23865355 (attr: read attributes from HEAD when bare repo,
2023-10-13), we started to use the HEAD tree as the default
attribute source in a bare repository.  One argument for such a
behaviour is that it would make things like "git archive" run in
bare and non-bare repositories for the same commit consistent.
This changes was merged to Git 2.43 but without an explicit mention
in its release notes.

It turns out that this change destroys performance of shallowly
cloning from a bare repository.  As the "server" installations are
expected to be mostly bare, and "git pack-objects", which is the
core of driving the other side of "git clone" and "git fetch" wants
to see if a path is set not to delta with blobs from other paths via
the attribute system, the change forces the server side to traverse
the tree of the HEAD commit needlessly to find if each and every
paths the objects it sends out has the attribute that controls the
deltification.  Given that (1) most projects do not configure such
an attribute, and (2) it is dubious for the server side to honor
such an end-user supplied attribute anyway, this was a poor choice
of the default.

To mitigate the current situation, let's revert the change that uses
the tree of HEAD in a bare repository by default as the attribute
source.  This will help most people who have been happy with the
behaviour of Git 2.42 and before.

Two things to note:

 * If you are stuck with versions of Git 2.43 or newer, that is
   older than the release this fix appears in, you can explicitly
   set the attr.tree configuration variable to point at an empty
   tree object, i.e.

	$ git config attr.tree 4b825dc642

 * If you like the behaviour we are reverting, you can explicitly
   set the attr.tree configuration variable to HEAD, i.e.

	$ git config attr.tree HEAD

The right fix for this is to optimize the code paths that allow
accesses to attributes in tree objects, but that is a much more
involved change and is left as a longer-term project, outside the
scope of this "first step" fix.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-03 09:15:33 -07:00
Junio C Hamano 861dc19ba8 t/lib-chunk: work around broken "mv" on some vintage of macOS
When the destination is read-only, "mv" on some version of macOS
asks whether to replace the destination even though in the test its
stdin is not a terminal (and thus doesn't conform to POSIX[1]).

The helper to corrupt a chunk-file is designed to work on the
files like commit-graph and multi-pack-index files that are
generally read-only, so use "mv -f" to work around this issue.

Helped-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-02 13:16:42 -07:00
Beat Bolli 7b97dfe47b color: add support for 12-bit RGB colors
RGB color parsing currently supports 24-bit values in the form #RRGGBB.

As in Cascading Style Sheets (CSS [1]), also allow to specify an RGB color
using only three digits with #RGB.

In this shortened form, each of the digits is – again, as in CSS –
duplicated to convert the color to 24 bits, e.g. #f1b specifies the same
color as #ff11bb.

In color.h, remove the '0x' prefix in the example to match the actual
syntax.

[1] https://developer.mozilla.org/en-US/docs/Web/CSS/hex-color

Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-02 09:30:38 -07:00
Beat Bolli d78d692efc t/t4026-color: add test coverage for invalid RGB colors
Make sure that the RGB color parser rejects invalid characters and
invalid lengths.

Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-02 09:30:38 -07:00
Beat Bolli e95af749a2 t/t4026-color: remove an extra double quote character
This is most probably just an editing left-over from cb357221a4 (t4026:
test "normal" color, 2014-11-20) which added this test.

Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-02 09:30:37 -07:00
Junio C Hamano 75b182d34e Merge branch 'js/for-each-repo-keep-going'
A scheduled "git maintenance" job is expected to work on all
repositories it knows about, but it stopped at the first one that
errored out.  Now it keeps going.

* js/for-each-repo-keep-going:
  maintenance: running maintenance should not stop on errors
  for-each-repo: optionally keep going on an error
2024-04-30 14:49:45 -07:00
Junio C Hamano 90f6b5a597 Merge branch 'aj/stash-staged-fix'
"git stash -S" did not handle binary files correctly, which has
been corrected.

* aj/stash-staged-fix:
  stash: fix "--staged" with binary files
2024-04-30 14:49:43 -07:00
Junio C Hamano 708e9257f8 Merge branch 'jc/format-patch-rfc-more'
The "--rfc" option of "git format-patch" learned to take an
optional string value to be used in place of "RFC" to tweak the
"[PATCH]" on the subject header.

* jc/format-patch-rfc-more:
  format-patch: "--rfc=-(WIP)" appends to produce [PATCH (WIP)]
  format-patch: allow --rfc to optionally take a value, like --rfc=WIP
2024-04-30 14:49:43 -07:00
Junio C Hamano 07fc8275e1 Merge branch 'ds/format-patch-rfc-and-k'
The "-k" and "--rfc" options of "format-patch" will now error out
when used together, as one tells us not to add anything to the
title of the commit, and the other one tells us to add "RFC" in
addition to "PATCH".

* ds/format-patch-rfc-and-k:
  format-patch: ensure that --rfc and -k are mutually exclusive
2024-04-30 14:49:42 -07:00
Junio C Hamano 55e5548a0f Merge branch 'xx/disable-replace-when-building-midx'
The procedure to build multi-pack-index got confused by the
replace-refs mechanism, which has been corrected by disabling the
latter.

* xx/disable-replace-when-building-midx:
  midx: disable replace objects
2024-04-30 14:49:42 -07:00
Junio C Hamano c9f43012a1 Merge branch 'pw/rebase-m-signoff-fix'
"git rebase --signoff" used to forget that it needs to add a
sign-off to the resulting commit when told to continue after a
conflict stops its operation.

* pw/rebase-m-signoff-fix:
  rebase -m: fix --signoff with conflicts
  sequencer: store commit message in private context
  sequencer: move current fixups to private context
  sequencer: start removing private fields from public API
  sequencer: always free "struct replay_opts"
2024-04-30 14:49:41 -07:00
Rubén Justo 26998ed2a2 add-patch: response to unknown command
When the user gives an unknown command to the "add -p" prompt, the list
of accepted commands with their explanation is given.  This is the same
output they get when they say '?'.

However, the unknown command may be due to a user input error rather
than the user not knowing the valid command.

To reduce the likelihood of user confusion and error repetition, instead
of displaying the list of accepted commands, display a short error
message with the unknown command received, as feedback to the user.

Include a reminder about the current command '?' in the new message, to
guide the user if they want help.

Signed-off-by: Rubén Justo <rjusto@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-04-30 12:02:50 -07:00