Commit Graph

423 Commits

Author SHA1 Message Date
Junio C Hamano
703cf8c3b5 Merge branch 'ps/setup-drop-global-state' into seen
Continuation of "setup.c" refactoring to drop remaining global state
(`git_work_tree_cfg`, `is_bare_repository_cfg`). The most notable
outcome is that `is_bare_repository()` has been updated to no longer
implicitly rely on `the_repository`.

* ps/setup-drop-global-state:
  treewide: drop USE_THE_REPOSITORY_VARIABLE
  environment: stop using `the_repository` in `is_bare_repository()`
  environment: split up concerns of `is_bare_repository_cfg`
  builtin/init: stop modifying `is_bare_repository_cfg`
  setup: remove global `git_work_tree_cfg` variable
  builtin/init: simplify logic to configure worktree
  builtin/init: stop modifying global `git_work_tree_cfg` variable
2026-06-12 15:58:19 -07:00
Junio C Hamano
96623244f8 Merge branch 'ty/move-protect-hfs-ntfs' into seen
The global configuration variables protect_hfs and protect_ntfs have
been migrated into struct repo_config_values to tie them to
per-repository configuration state.

* ty/move-protect-hfs-ntfs:
  environment: move 'protect_hfs' and 'protect_ntfs' into 'repo_config_values'
2026-06-12 15:58:17 -07:00
Junio C Hamano
60d3bd1b8a Merge branch 'ty/migrate-trust-executable-bit' into seen
The 'trust_executable_bit' (coming from 'core.filemode'
configuration) has been migrated into 'repo_config_values' to tie it
to a specific repository instance.

* ty/migrate-trust-executable-bit:
  environment: move trust_executable_bit into repo_config_values
  read-cache: move 'ce_mode_from_stat()' to 'read-cache.c'
  read-cache: remove redundant extern declarations
2026-06-12 15:58:15 -07:00
Tian Yuchen
f951ed9803 environment: move trust_executable_bit into repo_config_values
Move the global 'trust_executable_bit' configuration
into the repository-specific 'repo_config_values'
struct. To ensure code readability, the getter function
'repo_trust_executable_bit()' has been introduced.

For now, associated functions access this configuration by
explicitly falling back to 'the_repository'.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Ayush Chandekar <ayu.chandekar@gmail.com>
Mentored-by: Olamide Caleb Bello <belkid98@gmail.com>
Signed-off-by: Tian Yuchen <cat@malon.dev>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-06-12 12:48:51 -07:00
Tian Yuchen
71386c21df environment: move 'protect_hfs' and 'protect_ntfs' into 'repo_config_values'
Move the global 'protect_hfs' and 'protect_ntfs' configurations
into the repository-specific 'repo_config_values' struct.
This will help with the elimination of 'the_repository'

To ensure code readability, the getter functions
'repo_protect_hfs()' and 'repo_protect_ntfs()'
have been introduced.

For now, associated functions access this configuration by
explicitly falling back to 'the_repository', which needs to
be addressed in the future.

Note: In 't/helper/test-path-utils.c', there is a function
'protect_ntfs_hfs_benchmark()' where these two global
variables are used as loop iterators. New local variables
have been created to replace them.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Ayush Chandekar <ayu.chandekar@gmail.com>
Mentored-by: Olamide Caleb Bello <belkid98@gmail.com>
Signed-off-by: Tian Yuchen <cat@malon.dev>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-06-12 05:45:09 -07:00
Patrick Steinhardt
2e1d55626f environment: stop using the_repository in is_bare_repository()
Refactor `is_bare_repository()` to take in a repository parameter so
that we no longer depend on `the_repository`. Adjust callers
accordingly.

Furthermore, move the function outside of the declarations that are only
available when `USE_THE_REPOSITORY_VARIABLE` is set, as it no longer
depends on that variable.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-06-11 05:05:54 -07:00
Patrick Steinhardt
7ff3a5895b environment: split up concerns of is_bare_repository_cfg
The `is_bare_repository_cfg` variable tracks two different pieces of
information:

  - It tracks whether the user has invoked git with the "--bare" flag,
    which makes us treat any discovered Git repository as if it was a
    bare repository.

  - Otherwise it tracks whether the discovered `the_repository` is bare.

This makes the flag extremely confusing and creates a bit of a challenge
when handling multiple repositories in the same process.

Split up the concerns of this variable into two pieces:

  - `startup_info.force_bare_repository` tracks whether the user has
    passed the "--bare" flag. This is used as a hint to treat newly set
    up repositories as bare regardless of whether or not they have a
    worktree.

  - `struct repository::bare_cfg` tracks whether or not a repository is
    considered bare. This takes into account both whether the user has
    passed "--bare" and the discovered state of the repository itself.

Whether or not a repository is bare is now resolved when checking the
repository's format, and is then later applied to the repository itself
via `apply_repository_format()`.

This enables a subsequent change where we make `is_bare_repository()`
not depend on global state anymore.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-06-11 05:05:54 -07:00
Patrick Steinhardt
9bef2cf331 builtin/init: stop modifying global git_work_tree_cfg variable
When executing git-init(1) we need to figure out the final location of
the worktree. This location can be configured in a couple of ways: via
an environment variable, via the preexisting "core.worktree" config in
case we're reinitializing, or implicitly when reinitializing a non-bare
repository.

When checking for the worktree location in "builtin/init-db.c" we
populate any potentially-discovered value both by setting the global
`git_work_tree_cfg` variable and via `set_git_work_tree()`, which
ultimately ends up modifying `struct repository::worktree`.

Modifying `git_work_tree_cfg` is unnecessary though: we configure the
worktree in `create_default_files()`, and that function derives the
worktree location via `repo_get_work_tree()`. Consequently, propagating
the worktree via `set_git_work_tree()` is sufficient.

Stop munging `git_work_tree_cfg` and make it file-local to "setup.c" and
function-local to `cmd_init_db()`.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-06-11 05:05:54 -07:00
Olamide Caleb Bello
8407abf02a environment: move "warn_on_object_refname_ambiguity" into struct repo_config_values
The `core.warnAmbiguousRefs` configuration was previously stored in a
global `int` variable, making it shared across repository instances
and risking cross‑repository state leakage.

Store it instead in `repo_config_values`, where eagerly‑parsed
repository configuration lives. This option is parsed eagerly because
ambiguity warnings influence how users interpret object references in
many commands; a lazy parse could cause these warnings to behave
inconsistently or to appear for the wrong repository, confusing users
and hindering libification. This preserves the existing behavior while
tying the value to the repository from which it was read, avoiding
cross‑repository state leakage and continuing the effort to reduce
reliance on global configuration state.

Update all references to use `repo_config_values()`.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Usman Akinyemi <usmanakinyemi202@gmail.com>
Signed-off-by: Olamide Caleb Bello <belkid98@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-06-03 08:36:48 +09:00
Olamide Caleb Bello
c8a32140a7 environment: move "sparse_expect_files_outside_of_patterns" into struct repo_config_values
The `core.sparseCheckoutExpectFilesOutsideOfPatterns` configuration was
previously stored in a global `int` variable, making it shared across
repository instances and risking cross‑repository state leakage.

Store it instead in `repo_config_values`, where eagerly‑parsed
repository configuration lives. This option is parsed eagerly because
it controls how sparse‑checkout paths are interpreted – a fundamental
behavior that many commands rely on; a lazy parse could cause
inconsistent sparse‑checkout handling and complicate libification.
This preserves the existing behavior while tying the value to the
repository from which it was read, avoiding cross‑repository state
leakage and continuing the effort to reduce reliance on global
configuration state.

Update all references to use `repo_config_values()`.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Usman Akinyemi <usmanakinyemi202@gmail.com>
Signed-off-by: Olamide Caleb Bello <belkid98@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-06-03 08:36:48 +09:00
Olamide Caleb Bello
dfa01cee1c environment: move "core_sparse_checkout_cone" into struct repo_config_values
The `core.sparseCheckoutCone` configuration was previously stored in an
uninitialized global `int` variable, risking cross‑repository state
leakage.

Move it into `repo_config_values`, where eagerly‑parsed repository
configuration lives. `core.sparseCheckoutCone` is parsed eagerly
because it determines the fundamental sparse‑checkout mode and is
consulted very early during repository setup; a lazy parse could
leave the sparse‑checkout state undefined and complicate
libification. This preserves the existing behavior while tying the
value to the repository from which it was read, avoiding cross‑
repository state leakage and continuing the effort to reduce reliance
on global configuration state.

Update all references to use `repo_config_values()`.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Usman Akinyemi <usmanakinyemi202@gmail.com>
Signed-off-by: Olamide Caleb Bello <belkid98@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-06-03 08:36:48 +09:00
Olamide Caleb Bello
6f00fc0499 environment: move "precomposed_unicode" into struct repo_config_values
The `core.precomposeunicode` configuration is currently stored in the
global variable `precomposed_unicode`, which makes it shared across
repository instances within a single process.

Store it instead in `repo_config_values`, where eagerly‑parsed
repository configuration lives. `core.precomposeunicode` is parsed
eagerly because it controls Unicode path normalization on macOS,
a fundamental filesystem‑level behavior that many operations depend
on; a lazy parse could lead to inconsistent results and hamper
libification. This preserves the existing behavior while tying the
value to the repository from which it was read, avoiding cross‑
repository state leakage and continuing the effort to reduce reliance
on global configuration state.

Update all references to use `repo_config_values()`.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Usman Akinyemi <usmanakinyemi202@gmail.com>
Signed-off-by: Olamide Caleb Bello <belkid98@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-06-03 08:36:48 +09:00
Olamide Caleb Bello
8cd7402acc environment: move "pack_compression_level" into struct repo_config_values
The `pack_compression_level` configuration is currently stored in the
global variable `pack_compression_level`, which makes it shared across
repository instances within a single process.

Store it instead in `repo_config_values`, where eagerly‑parsed
repository configuration lives. `pack_compression_level` is parsed
eagerly because it influences packfile compression, a core operation
where a lazy parse could cause inconsistent behavior and hamper
libification. This preserves the existing eager‑parsing behavior while
tying the value to the repository from which it was read, avoiding
cross‑repository state leakage and continuing the effort to reduce
reliance on global configuration state.

Update all references to use `repo_config_values()`.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Usman Akinyemi <usmanakinyemi202@gmail.com>
Signed-off-by: Olamide Caleb Bello <belkid98@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-06-03 08:36:48 +09:00
Olamide Caleb Bello
e0f86540ab environment: move zlib_compression_level into struct repo_config_values
The `zlib_compression_level` configuration is currently stored in the
global variable `zlib_compression_level`, which makes it shared across
repository instances within a single process.

Store it instead in `repo_config_values`, where eagerly‑parsed
repository configuration lives. `zlib_compression_level` is parsed
eagerly because it determines compression behaviour for objects and
packs – core operations where a lazy parse could lead to unpredictable
results and hinder libification. This preserves the existing
eager‑parsing behavior while tying the value to the repository it
was read from, avoiding cross‑repository state leakage and continuing
the effort to reduce reliance on global configuration state.

Update all references to use `repo_config_values()`.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Usman Akinyemi <usmanakinyemi202@gmail.com>
Signed-off-by: Olamide Caleb Bello <belkid98@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-06-03 08:36:48 +09:00
Olamide Caleb Bello
88505ed637 environment: move "check_stat" into struct repo_config_values
The `core.checkstat` configuration is currently stored in the global
variable `check_stat`, which makes it shared across repository
instances within a single process.

Store it instead in `repo_config_values`, where eagerly‑parsed
repository configuration lives. `core.checkstat` is parsed eagerly
because it controls how `match_stat_data()` and related functions
decide file freshness; a lazy parse could lead to unexpected
behavior or complicate libification. This preserves the existing
eager‑parsing behavior while tying the value to the repository it
was read from, avoiding cross‑repository state leakage, and
continuing the effort to reduce reliance on global configuration
state.

Update all references to use `repo_config_values()`.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Usman Akinyemi <usmanakinyemi202@gmail.com>
Signed-off-by: Olamide Caleb Bello <belkid98@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-06-03 08:36:48 +09:00
Olamide Caleb Bello
18684282df environment: move "trust_ctime" into struct repo_config_values
The `core.trustctime` configuration is currently stored in the global
variable `trust_ctime`, which makes it shared across repository
instances in a single process.

Store it instead in `repo_config_values`, where eagerly‑parsed
repository configuration lives. `core.trustctime` is parsed eagerly
because it is used in low‑level stat‑matching functions
(`match_stat_data()`), where a lazy parse could cause unexpected
fatal errors, result in a performance regression and complicate
libification efforts. This preserves that behavior while tying the
value to the repository from which it was read, avoiding cross‑repository
state leakage and continuing the effort to reduce reliance on global
configuration state.

Update all references to use repo_config_values().

Mentored-by: Christian Couder <christian.couder@gmail.com>
Signed-off-by: Olamide Caleb Bello <belkid98@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-06-03 08:36:48 +09:00
Junio C Hamano
db227bce22 Merge branch 'ob/core-attributesfile-in-repository'
The core.attributesfile is intended to be set per repository, but
were kept track of by a single global variable in-core, which has
been corrected by moving it to per-repository data structure.

* ob/core-attributesfile-in-repository:
  environment: move "branch.autoSetupMerge" into `struct repo_config_values`
  environment: stop using core.sparseCheckout globally
  environment: stop storing `core.attributesFile` globally
2026-03-05 10:04:49 -08:00
Olamide Caleb Bello
cf50830ce1 environment: move "branch.autoSetupMerge" into struct repo_config_values
The config value `branch.autoSetupMerge` is parsed in
`git_default_branch_config()` and stored in the global variable
`git_branch_track`. This global variable can be overwritten
by another repository when multiple Git repos run in the the same process.

Move this value into `struct repo_config_values` in the_repository to
retain current behaviours and move towards libifying Git.
Since the variable is no longer a global variable, it has been renamed to
`branch_track` in the struct `repo_config_values`.

Suggested-by: Phillip Wood <phillip.wood123@gmail.com>
Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Usman Akinyemi <usmanakinyemi202@gmail.com>
Signed-off-by: Olamide Caleb Bello <belkid98@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-02-26 07:22:53 -08:00
Olamide Caleb Bello
4021751558 environment: stop using core.sparseCheckout globally
The config value `core.sparseCheckout` is parsed in
`git_default_core_config()` and stored globally in
`core_apply_sparse_checkout`. This could cause it to be overwritten
by another repository when different Git repositories run in the same
process.

Move the parsed value into `struct repo_config_values` in the_repository
to retain current behaviours and move towards libifying Git.

Suggested-by: Phillip Wood <phillip.wood123@gmail.com>
Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Usman Akinyemi <usmanakinyemi202@gmail.com>
Signed-off-by: Olamide Caleb Bello <belkid98@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-02-26 07:22:51 -08:00
Burak Kaan Karaçay
6aea51bc3b mailmap: drop global config variables
The 'mailmap.file' and 'mailmap.blob' configurations are currently
parsed and stored in the global variables 'git_mailmap_file' and
'git_mailmap_blob'. Since these values are typically only needed once
when initializing a mailmap, there is no need to keep them as global
state throughout the lifetime of the Git process.

To reduce global state, remove these global variables and instead use
'repo_config_get_*' functions to read the configuration on demand.

Signed-off-by: Burak Kaan Karaçay <bkkaracay@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-02-20 08:13:58 -08:00
Junio C Hamano
5779c47fa0 Merge branch 'pc/lockfile-pid'
Allow recording process ID of the process that holds the lock next
to a lockfile for diagnosis.

* pc/lockfile-pid:
  lockfile: add PID file for debugging stale locks
2026-02-17 13:30:41 -08:00
Olamide Caleb Bello
f9b3c1f731 environment: stop storing core.attributesFile globally
The `core.attributeFile` config value is parsed in
git_default_core_config(), loaded eagerly and stored in the global
variable `git_attributes_file`. Storing this value in a global
variable can lead to it being overwritten by another repository when
more than one Git repository run in the same Git process.

Create a new struct `repo_config_values` to hold this value and
other repository dependent values parsed by `git_default_config()`.
This will ensure the current behaviour remains the same while also
enabling the libification of Git.

An accessor function 'repo_config_values()' s created to ensure
that we do not access an uninitialized repository, or an instance
of a different repository than the current one.

Suggested-by: Phillip Wood <phillip.wood123@gmail.com>
Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Usman Akinyemi <usmanakinyemi202@gmail.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Olamide Caleb Bello <belkid98@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-02-17 12:09:42 -08:00
Paulo Casaretto
dbdcab6b89 lockfile: add PID file for debugging stale locks
When a lock file is held, it can be helpful to know which process owns
it, especially when debugging stale locks left behind by crashed
processes. Add an optional feature that creates a companion PID file
alongside each lock file, containing the PID of the lock holder.

For a lock file "foo.lock", the PID file is named "foo~pid.lock". The
tilde character is forbidden in refnames and allowed in Windows
filenames, which guarantees no collision with the refs namespace
(e.g., refs "foo" and "foo~pid" cannot both exist). The file contains
a single line in the format "pid <value>" followed by a newline.

The PID file is created when a lock is acquired (if enabled), and
automatically cleaned up when the lock is released (via commit or
rollback). The file is registered as a tempfile so it gets cleaned up
by signal and atexit handlers if the process terminates abnormally.

When a lock conflict occurs, the code checks for an existing PID file
and, if found, uses kill(pid, 0) to determine if the process is still
running. This allows providing context-aware error messages:

  Lock is held by process 12345. Wait for it to finish, or remove
  the lock file to continue.

Or for a stale lock:

  Lock was held by process 12345, which is no longer running.
  Remove the stale lock file to continue.

The feature is controlled via core.lockfilePid configuration (boolean).
Defaults to false. When enabled, PID files are created for all lock
operations.

Existing PID files are always read when displaying lock errors,
regardless of the core.lockfilePid setting. This ensures helpful
diagnostics even when the feature was previously enabled and later
disabled.

Signed-off-by: Paulo Casaretto <pcasaretto@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-01-22 12:15:46 -08:00
Junio C Hamano
214cbb7b1d Merge branch 'rs/tree-wo-the-repository'
Remove implicit reliance on the_repository global in the APIs
around tree objects and make it explicit which repository to work
in.

* rs/tree-wo-the-repository:
  cocci: remove obsolete the_repository rules
  cocci: convert parse_tree functions to repo_ variants
  tree: stop using the_repository
  tree: use repo_parse_tree()
  path-walk: use repo_parse_tree_gently()
  pack-bitmap-write: use repo_parse_tree()
  delta-islands: use repo_parse_tree()
  bloom: use repo_parse_tree()
  add-interactive: use repo_parse_tree_indirect()
  tree: add repo_parse_tree*()
  environment: move access to core.maxTreeDepth into repo settings
2026-01-21 16:16:28 -08:00
René Scharfe
e691395365 environment: move access to core.maxTreeDepth into repo settings
The config setting core.maxTreeDepth is stored in a global variable and
populated by the function git_default_core_config.  This won't work if
we need to access multiple repositories with different values of that
setting in the same process.  Store the setting in struct repo_settings
instead and track it separately for each repository.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-01-09 18:36:16 -08:00
Johannes Schindelin
7997e36561 init: do parse _all_ core.* settings early
In Git for Windows, `has_symlinks` is set to 0 by default. Therefore, we
need to parse the config setting `core.symlinks` to know if it has been
set to `true`. In `git init`, we must do that before copying the
templates because they might contain symbolic links.

Even if the support for symbolic links on Windows has not made it to
upstream Git yet, we really should make sure that all the `core.*`
settings are parsed before proceeding, as they might very well change
the behavior of `git init` in a way the user intended.

This fixes https://github.com/git-for-windows/git/issues/3414

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-01-09 18:28:36 -08:00
Junio C Hamano
1fbfabfa71 Merge branch 'pw/3.0-commentchar-auto-deprecation'
"core.commentChar=auto" that attempts to dynamically pick a
suitable comment character is non-workable, as it is too much
trouble to support for little benefit, and is marked as deprecated.

* pw/3.0-commentchar-auto-deprecation:
  commit: print advice when core.commentString=auto
  config: warn on core.commentString=auto
  breaking-changes: deprecate support for core.commentString=auto
2025-09-18 10:07:00 -07:00
Phillip Wood
a0e6aaea7d config: warn on core.commentString=auto
As support for this setting was deprecated in the last commit print a
warning (or die when WITH_BREAKING_CHANGES is enabled) if it is set.
Avoid bombarding the user with warnings by only printing it (a) when
running commands that call "git commit" and (b) only once per command.

Some scaffolding is added to repo_read_config() to allow it to
detect deprecated config settings and warn about them. As both
"core.commentChar" and "core.commentString" set the comment
character we record which one of them is used and tailor the
warning message appropriately.

Note the odd combination of die_message() followed by die(NULL)
is to allow the next commit to insert a call to advise() in the middle.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-08-26 08:52:44 -07:00
Phillip Wood
fdae4114a6 breaking-changes: deprecate support for core.commentString=auto
When "core.commentString" is set to "auto" then "git commit" will
automatically select the comment character ensuring that it is not the
first character on any of the lines in the commit message. This was
introduced by commit 84c9dc2c5a (commit: allow core.commentChar=auto
for character auto selection, 2014-05-17). The motivation seems to be
to avoid commenting out lines from the existing message when amending
a commit that was created with a message from a file.

Unfortunately this feature does not work with:

 * commit message templates that contain comments.

 * prepare-commit-msg hooks that introduce comments.

 * "git commit --cleanup=strip --edit -F <file>" which means that it
   is incompatible with

   - the "fixup" and "squash" commands of "git rebase -i" as the
     comments added by those commands are then treated as part of
     the commit message.

   - the conflict comments added to the commit message by "git
     cherry-pick", "git rebase" etc. as these comments are then
     treated as part of the commit message.

It is also ignored by "git notes" when amending a note.

The issues with comments coming from a template, hook or file are a
consequence of the design of this feature and are therefore hard to
fix.

As the costs of this feature outweigh the benefits, deprecate it and
remove it in Git 3.0. If someone comes up with some patches that fix
all the issues in a maintainable way then I'd be happy to see this
change reverted.

The next commits will add a warning and some advice for users on how
they can update their config settings.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-08-26 08:47:37 -07:00
Junio C Hamano
9d6e319ec5 Merge branch 'ac/deglobal-fmt-merge-log-config'
Code clean-up.

* ac/deglobal-fmt-merge-log-config:
  builtin/fmt-merge-msg: stop depending on 'the_repository'
  environment: remove the global variable 'merge_log_config'
2025-08-22 13:13:21 -07:00
Junio C Hamano
54fef16542 Merge branch 'jc/strbuf-split'
Arrays of strbuf is often a wrong data structure to use, and
strbuf_split*() family of functions that create them often have
better alternatives.

Update several code paths and replace strbuf_split*().

* jc/strbuf-split:
  trace2: do not use strbuf_split*()
  trace2: trim_trailing_newline followed by trim is a no-op
  sub-process: do not use strbuf_split*()
  environment: do not use strbuf_split*()
  config: do not use strbuf_split()
  notes: do not use strbuf_split*()
  merge-tree: do not use strbuf_split*()
  clean: do not use strbuf_split*() [part 2]
  clean: do not pass the whole structure when it is not necessary
  clean: do not use strbuf_split*() [part 1]
  clean: do not pass strbuf by value
  wt-status: avoid strbuf_split*()
2025-08-21 13:47:00 -07:00
Ayush Chandekar
9a49aef8dc environment: remove the global variable 'merge_log_config'
The global variable 'merge_log_config', set via the "merge.log" or
"merge.summary" settings, is only used in 'cmd_fmt_merge_msg()' and
'cmd_merge()' to adjust the 'shortlog_len' variable.

Remove 'merge_log_config' globally and localize it in
'cmd_fmt_merge_msg()' and 'cmd_merge()'. Set its value by passing it in
'fmt_merge_msg_config()' by passing its pointer to the function via the
callback parameter.

This change is part of an ongoing effort to eliminate global variables,
improve modularity and help libify the codebase.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Ghanshyam Thakkar <shyamthakkar001@gmail.com>
Signed-off-by: Ayush Chandekar <ayu.chandekar@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-08-11 09:16:55 -07:00
Junio C Hamano
b894d4481f environment: do not use strbuf_split*()
environment.c:get_git_namespace() learns the raw namespace from an
environment variable, splits it at "/", and appends them after
"refs/namespaces/"; the reason why it splits first is so that an
empty string resulting from double slashes can be omitted.

The split pieces do not need to be edited in any way, so an array of
strbufs is a wrong data structure to use.  Instead split into a
string list and use the pieces from there.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-08-02 22:44:58 -07:00
Junio C Hamano
084681b1b0 Merge branch 'ps/config-wo-the-repository' into pw/3.0-commentchar-auto-deprecation
* ps/config-wo-the-repository: (21 commits)
  config: fix sign comparison warnings
  config: move Git config parsing into "environment.c"
  config: remove unused `the_repository` wrappers
  config: drop `git_config_set_multivar()` wrapper
  config: drop `git_config_get_multivar_gently()` wrapper
  config: drop `git_config_set_multivar_in_file_gently()` wrapper
  config: drop `git_config_set_in_file_gently()` wrapper
  config: drop `git_config_set()` wrapper
  config: drop `git_config_set_gently()` wrapper
  config: drop `git_config_set_in_file()` wrapper
  config: drop `git_config_get_bool()` wrapper
  config: drop `git_config_get_ulong()` wrapper
  config: drop `git_config_get_int()` wrapper
  config: drop `git_config_get_string()` wrapper
  config: drop `git_config_get_string()` wrapper
  config: drop `git_config_get_string_multi()` wrapper
  config: drop `git_config_get_value()` wrapper
  config: drop `git_config_get_value()` wrapper
  config: drop `git_config_get()` wrapper
  config: drop `git_config_clear()` wrapper
  ...
2025-07-31 12:28:51 -07:00
Patrick Steinhardt
08b775864e config: move Git config parsing into "environment.c"
In "config.c" we host both the business logic to read and write config
files as well as the logic to parse specific Git-related variables. On
the one hand this is mixing concerns, but even more importantly it means
that we cannot easily remove the dependency on `the_repository` in our
config parsing logic.

Move the logic into "environment.c". This file is a grab bag of all
kinds of global state already, so it is quite a good fit. Furthermore,
it also hosts most of the global variables that we're parsing the config
values into, making this an even better fit.

Note that there is one hidden change: in `parse_fsync_components()` we
use an `int` to iterate through `ARRAY_SIZE(fsync_component_names)`. But
as -Wsign-compare warnings are enabled in this file this causes a
compiler warning. The issue is fixed by using a `size_t` instead.

This change allows us to drop the `USE_THE_REPOSITORY_VARIABLE`
declaration.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-07-23 08:15:22 -07:00
Ayush Chandekar
44e300a974 repository: move 'repository_format_precious_objects' to repo scope
The 'extensions.preciousObjects' setting when set true, prevents
operations that might drop objects from the object storage. This setting
is populated in the global variable
'repository_format_precious_objects'.

Move this global variable to repo scope by adding it to 'struct
repository and also refactor all the occurences accordingly.

This change is part of an ongoing effort to eliminate global variables,
improve modularity and help libify the codebase.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Ghanshyam Thakkar <shyamthakkar001@gmail.com>
Signed-off-by: Ayush Chandekar <ayu.chandekar@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-07-07 08:31:13 -07:00
Ayush Chandekar
b1d47b464e environment: remove the global variable 'core_preload_index'
The global variable 'core_preload_index' is used in a single function
named 'preload_index()' in "preload-index.c". Move its declaration inside
that function, removing unnecessary global state.

This change is part of an ongoing effort to eliminate global variables,
improve modularity and help libify the codebase.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Ghanshyam Thakkar <shyamthakkar001@gmail.com>
Signed-off-by: Ayush Chandekar <ayu.chandekar@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-10 10:10:38 -07:00
Junio C Hamano
b50795db79 Merge branch 'js/windows-arm64'
Update to arm64 Windows port.

* js/windows-arm64:
  max_tree_depth: lower it for clangarm64 on Windows
  mingw(arm64): do move the `/etc/git*` location
  msvc: do handle builds on Windows/ARM64
  mingw: do not use nedmalloc on Windows/ARM64
  config.mak.uname: add support for clangarm64
  bswap.h: add support for built-in bswap functions
2025-05-05 14:56:24 -07:00
Junio C Hamano
dd45c2e48f Merge branch 'as/typofix-in-env-h-header'
Typofix.

* as/typofix-in-env-h-header:
  environment: fix typo: 'setup_git_directory_gently'
2025-04-29 14:21:27 -07:00
Johannes Schindelin
436a42215e max_tree_depth: lower it for clangarm64 on Windows
Just as in b64d78ad02 (max_tree_depth: lower it for MSVC to avoid
stack overflows, 2023-11-01), I encountered the same problem with the
clang builds on Windows/ARM64.

The symptom is an exit code 127 when t6700 tries to verify that `git
archive big` fails.

This exit code is reserved on Unix/Linux to mean "command not found".
Unfortunately in this case, it is the fall-back chosen by
Cygwin's `pinfo::status_exit()` method when encountering
the NSTATUS `STATUS_STACK_OVERFLOW`, see
https://github.com/cygwin/cygwin/blob/cygwin-3.6.1/winsup/cygwin/pinfo.cc#L171

I verified manually that the stack overflow always happens somewhere
around tree depth 1403, therefore 1280 should be a safe bound in these
instances.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-04-23 09:16:24 -07:00
Abhijeet Sonar
ff4a749354 environment: fix typo: 'setup_git_directory_gently'
Above the declaration of git_work_tree_cfg, we have:

  /* This is set by setup_git_dir_gently() and/or git_default_config() */
  char *git_work_tree_cfg;

It can be verified that there is no function called
'setup_git_dir_gently' by running grep on the codebase:

  $ grep -R setup_git_dir_gently .
  ./environment.c:/* This is set by setup_git_dir_gently() and/or git_default_config() */

The comment, introduced in e90fdc39b6 (Clean up work-tree handling), is
the only occurrence of the name 'setup_git_dir_gently'.

It probably meant 'setup_git_directory_gently' as that is a name of a
real function in setup.c. Correct it.

Signed-off-by: Abhijeet Sonar <abhijeet.nkt@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-04-18 14:04:08 -07:00
Patrick Steinhardt
7835ee75cd environment: move access to "core.bigFileThreshold" into repo settings
The "core.bigFileThreshold" setting is stored in a global variable and
populated via `git_default_core_config()`. This may cause issues in
the case where one is handling multiple different repositories in a
single process with different values for that config key, as we may or
may not see the correct value in that case. Furthermore, global state
blocks our path towards libification.

Refactor the code so that we instead store the value in `struct
repo_settings`, where the value is computed as-needed and cached.

Note that this change requires us to adapt one test in t1050 that
verifies that we die when parsing an invalid "core.bigFileThreshold"
value. The exercised Git command doesn't use the value at all, and thus
it won't hit the new code path that parses the value. This is addressed
by using git-hash-object(1) instead, which does read the value.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-03-10 13:16:18 -07:00
Junio C Hamano
feffb34257 Merge branch 'ps/path-sans-the-repository'
The path.[ch] API takes an explicit repository parameter passed
throughout the callchain, instead of relying on the_repository
singleton instance.

* ps/path-sans-the-repository:
  path: adjust last remaining users of `the_repository`
  environment: move access to "core.sharedRepository" into repo settings
  environment: move access to "core.hooksPath" into repo settings
  repo-settings: introduce function to clear struct
  path: drop `git_path()` in favor of `repo_git_path()`
  rerere: let `rerere_path()` write paths into a caller-provided buffer
  path: drop `git_common_path()` in favor of `repo_common_path()`
  worktree: return allocated string from `get_worktree_git_dir()`
  path: drop `git_path_buf()` in favor of `repo_git_path_replace()`
  path: drop `git_pathdup()` in favor of `repo_git_path()`
  path: drop unused `strbuf_git_path()` function
  path: refactor `repo_submodule_path()` family of functions
  submodule: refactor `submodule_to_gitdir()` to accept a repo
  path: refactor `repo_worktree_path()` family of functions
  path: refactor `repo_git_path()` family of functions
  path: refactor `repo_common_path()` family of functions
2025-03-05 10:37:43 -08:00
Patrick Steinhardt
f1ce861c34 environment: move access to "core.sharedRepository" into repo settings
Similar as with the preceding commit, we track "core.sharedRepository"
via a pair of global variables. Move them into `struct repo_settings` so
that we can instead track them per-repository.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-02-28 13:54:11 -08:00
Patrick Steinhardt
6f3fbed8ed environment: move access to "core.hooksPath" into repo settings
The "core.hooksPath" setting is stored in a global variable and
populated via the `git_default_core_config`. This may cause issues in
the case where one is handling multiple different repositories in a
single process with different values for that config key, as we may or
may not see the correct value in that case. Furthermore, global state
blocks our path towards libification.

Refactor the code so that we instead store the value in `struct
repo_settings`. The value is computed as-needed and cached. The result
should be functionally the same as there aren't ever any code paths
where we'd execute hooks outside the context of a repository.

Note that this requires us to change the passed-in repository in the
`repo_git_path()` family of functions to be non-constant, as we call
`adjust_git_path()` there.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-02-28 13:54:11 -08:00
Patrick Steinhardt
41f1a8435a git-compat-util: move include of "compat/zlib.h" into "git-zlib.h"
We include "compat/zlib.h" in "git-compat-util.h", which is
unnecessarily broad given that we only have a small handful of files
that use the zlib library. Move the header into "git-zlib.h" instead and
adapt users of zlib to include that header.

One exception is the reftable library, as we don't want to use the
Git-specific wrapper of zlib there, so we include "compat/zlib.h"
instead. Furthermore, we move the include into "reftable/system.h" so
that users of the library other than Git can wire up zlib themselves.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-01-28 13:03:22 -08:00
Karthik Nayak
d284713bae config: make packed_git_(limit|window_size) non-global variables
The variables `packed_git_window_size` and `packed_git_limit` are global
config variables used in the `packfile.c` file. Since it is only used in
this file, let's change it from being a global config variable to a
local variable for the subsystem.

With this, we rid `packfile.c` from all global variable usage and this
means we can also remove the `USE_THE_REPOSITORY_VARIABLE` guard from
the file.

Helped-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-12-04 08:21:55 +09:00
Karthik Nayak
d6b2d21fbf config: make delta_base_cache_limit a non-global variable
The `delta_base_cache_limit` variable is a global config variable used
by multiple subsystems. Let's make this non-global, by adding this
variable independently to the subsystems where it is used.

First, add the setting to the `repo_settings` struct, this provides
access to the config in places where the repository is available. Use
this in `packfile.c`.

In `index-pack.c` we add it to the `pack_idx_option` struct and its
constructor. While the repository struct is available here, it may not
be set  because `git index-pack` can be used without a repository.

In `gc.c` add it to the `gc_config` struct and also the constructor
function. The gc functions currently do not have direct access to a
repository struct.

These changes are made to remove the usage of `delta_base_cache_limit`
as a global variable in `packfile.c`. This brings us one step closer to
removing the `USE_THE_REPOSITORY_VARIABLE` definition in `packfile.c`
which we complete in the next patch.

Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-12-04 08:21:55 +09:00
Patrick Steinhardt
1e7e4a111f environment: stop storing "core.notesRef" globally
Stop storing the "core.notesRef" config value globally. Instead,
retrieve the value in `default_notes_ref()`. The code is never called in
a hot loop anyway, so doing this on every invocation should be perfectly
fine.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-09-12 10:15:44 -07:00
Patrick Steinhardt
11dbb4ace3 environment: stop storing "core.warnAmbiguousRefs" globally
Same as the preceding commits, storing the "core.warnAmbiguousRefs"
value globally is misdesigned as this setting may be set per repository.

Move the logic into the repo-settings subsystem. The usual pattern here
is that users are expected to call `prepare_repo_settings()` before they
access the settings themselves. This seems somewhat fragile though, as
it is easy to miss and leads to somewhat ugly code patterns at the call
sites.

Instead, introduce a new function that encapsulates this logic for us.
This also allows us to change how exactly the lazy initialization works
in the future, e.g. by only partially initializing values as requested
by the caller.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-09-12 10:15:44 -07:00