Volume XXII, number 280Wednesday, October 7, 2026Latest message 35 minutes ago

The Git List

News and archive of git@vger.kernel.org, since April 2005

patch, 8 partsrepo_config_values: migrate more globals

14 messages between Mar 10, 2026 and Mar 12, 2026, from Olamide Caleb Bello, Christian Couder, Tian Yuchen, Bello Olamide.

Plain Markdown or JSON for tools and agents. Diffs are folded; open one to read it.

Olamide Caleb BelloMar 10, 2026, 12:06 UTC on lore
Base series
===========
This series builds on top of the merged series:
  [PATCH v7 0/3] Move repo-specific globals into repo_config_values
available at:
  https://lore.kernel.org/git/<cover.1771258573.git.belkid98@gmail.com>
It should be applied on top of that series.

Overview ======== This series continues the effort to migrate repository-specific global variables into struct repo_config_values, further reducing global state and improving repository isolation.

The previous series introduced the infrastructure for storing repository-dependent configuration in repo_config_values. This series extends that work by moving additional environment-related globals into that struct and updating their call sites accordingly.

This helps avoid cross-repository interference when multiple repositories are used within the same process, and continues preparing Git for improved library usage and better encapsulation of repository state.

Olamide Caleb Bello (8):
  environment: move "trust_ctime" into `struct repo_config_values`
  environment: move "check_stat" into `struct repo_config_values`
  environment: move `zlib_compression_level` into repo_config_values
  environment: move "pack_compression_level" into `struct
    repo_config_values`
  environment: move "precomposed_unicode" into `struct
    repo_config_values`
  env: move "core_sparse_checkout_cone" into `struct repo_config_values`
  env: put "sparse_expect_files_outside_of_patterns" in
    `repo_config_values`
  env: move "warn_on_object_refname_ambiguity" into `repo_config_values`
 builtin/cat-file.c        |  7 ++++---
 builtin/fast-import.c     |  8 +++++---
 builtin/index-pack.c      |  3 ++-
 builtin/mv.c              |  2 +-
 builtin/pack-objects.c    | 15 ++++++++++-----
 builtin/sparse-checkout.c | 37 +++++++++++++++++++++---------------
 compat/precompose_utf8.c  | 20 +++++++++++++-------
 diff.c                    |  3 ++-
 dir.c                     |  3 ++-
 entry.c                   |  3 ++-
 environment.c             | 40 +++++++++++++++++++++------------------
 environment.h             | 19 ++++++++++---------
 http-push.c               |  3 ++-
 object-file.c             |  6 ++++--
 object-name.c             |  3 ++-
 revision.c                |  7 ++++---
 sparse-index.c            |  4 ++--
 statinfo.c                | 12 +++++++-----
 submodule.c               |  7 ++++---
 upload-pack.c             |  3 ++-
 20 files changed, 122 insertions(+), 83 deletions(-)
-- 
2.53.0.155.g9f36b15afa
Olamide Caleb BelloMar 10, 2026, 12:06 UTC in reply to Olamide Caleb Bello on lore

[PATCH v1 1/8] 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`, so the value is tied to the repository from which it was read. This preserves existing behavior while avoiding cross-repository state leakage and continues 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>
---
 environment.c | 4 ++--
 environment.h | 2 +-
 statinfo.c    | 6 ++++--
 3 files changed, 7 insertions(+), 5 deletions(-)
Show changes to 3 files +7 −5

environment.c, environment.h, statinfo.c

diff --git a/environment.c b/environment.c
index fc3ed8bb1c..0a9067729e 100644
--- a/environment.c
+++ b/environment.c
@@ -42,7 +42,6 @@ static int pack_compression_seen;
 static int zlib_compression_seen;
 
 int trust_executable_bit = 1;
-int trust_ctime = 1;
 int check_stat = 1;
 int has_symlinks = 1;
 int minimum_abbrev = 4, default_abbrev = -1;
@@ -309,7 +308,7 @@ int git_default_core_config(const char *var, const char *value,
 		return 0;
 	}
 	if (!strcmp(var, "core.trustctime")) {
-		trust_ctime = git_config_bool(var, value);
+		cfg->trust_ctime = git_config_bool(var, value);
 		return 0;
 	}
 	if (!strcmp(var, "core.checkstat")) {
@@ -721,4 +720,5 @@ void repo_config_values_init(struct repo_config_values *cfg)
 	cfg->attributes_file = NULL;
 	cfg->apply_sparse_checkout = 0;
 	cfg->branch_track = BRANCH_TRACK_REMOTE;
+	cfg->trust_ctime = 1;
 }
diff --git a/environment.h b/environment.h
index 123a71cdc8..64d537686e 100644
--- a/environment.h
+++ b/environment.h
@@ -91,6 +91,7 @@ struct repo_config_values {
 	/* section "core" config values */
 	char *attributes_file;
 	int apply_sparse_checkout;
+	int trust_ctime;
 
 	/* section "branch" config values */
 	enum branch_track branch_track;
@@ -161,7 +162,6 @@ extern char *git_work_tree_cfg;
 
 /* Environment bits from configuration mechanism */
 extern int trust_executable_bit;
-extern int trust_ctime;
 extern int check_stat;
 extern int has_symlinks;
 extern int minimum_abbrev, default_abbrev;
diff --git a/statinfo.c b/statinfo.c
index 30a164b0e6..4fc12053f4 100644
--- a/statinfo.c
+++ b/statinfo.c
@@ -3,6 +3,7 @@
 #include "git-compat-util.h"
 #include "environment.h"
 #include "statinfo.h"
+#include "repository.h"
 
 /*
  * Munge st_size into an unsigned int.
@@ -63,17 +64,18 @@ void fake_lstat_data(const struct stat_data *sd, struct stat *st)
 int match_stat_data(const struct stat_data *sd, struct stat *st)
 {
 	int changed = 0;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 
 	if (sd->sd_mtime.sec != (unsigned int)st->st_mtime)
 		changed |= MTIME_CHANGED;
-	if (trust_ctime && check_stat &&
+	if (cfg->trust_ctime && check_stat &&
 	    sd->sd_ctime.sec != (unsigned int)st->st_ctime)
 		changed |= CTIME_CHANGED;
 
 #ifdef USE_NSEC
 	if (check_stat && sd->sd_mtime.nsec != ST_MTIME_NSEC(*st))
 		changed |= MTIME_CHANGED;
-	if (trust_ctime && check_stat &&
+	if (cfg->trust_ctime && check_stat &&
 	    sd->sd_ctime.nsec != ST_CTIME_NSEC(*st))
 		changed |= CTIME_CHANGED;
 #endif
-- 
2.53.0.155.g9f36b15afa
Olamide Caleb BelloMar 10, 2026, 12:06 UTC in reply to Olamide Caleb Bello on lore

[PATCH v1 2/8] 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` so the value is associated with the repository from which it was read. This preserves existing behavior while avoiding cross-repository state leakage and continues 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>
---
 entry.c       |  3 ++-
 environment.c |  6 +++---
 environment.h |  2 +-
 statinfo.c    | 10 +++++-----
 4 files changed, 11 insertions(+), 10 deletions(-)
Show changes to 4 files +11 −10

entry.c, environment.c, environment.h, statinfo.c

diff --git a/entry.c b/entry.c
index 7817aee362..c55e867d8a 100644
--- a/entry.c
+++ b/entry.c
@@ -443,7 +443,8 @@ static int check_path(const char *path, int len, struct stat *st, int skiplen)
 static void mark_colliding_entries(const struct checkout *state,
 				   struct cache_entry *ce, struct stat *st)
 {
-	int trust_ino = check_stat;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
+	int trust_ino = cfg->check_stat;
 
 #if defined(GIT_WINDOWS_NATIVE) || defined(__CYGWIN__)
 	trust_ino = 0;
diff --git a/environment.c b/environment.c
index 0a9067729e..8542ac3141 100644
--- a/environment.c
+++ b/environment.c
@@ -42,7 +42,6 @@ static int pack_compression_seen;
 static int zlib_compression_seen;
 
 int trust_executable_bit = 1;
-int check_stat = 1;
 int has_symlinks = 1;
 int minimum_abbrev = 4, default_abbrev = -1;
 int ignore_case;
@@ -315,9 +314,9 @@ int git_default_core_config(const char *var, const char *value,
 		if (!value)
 			return config_error_nonbool(var);
 		if (!strcasecmp(value, "default"))
-			check_stat = 1;
+			cfg->check_stat = 1;
 		else if (!strcasecmp(value, "minimal"))
-			check_stat = 0;
+			cfg->check_stat = 0;
 		else
 			return error(_("invalid value for '%s': '%s'"),
 				     var, value);
@@ -721,4 +720,5 @@ void repo_config_values_init(struct repo_config_values *cfg)
 	cfg->apply_sparse_checkout = 0;
 	cfg->branch_track = BRANCH_TRACK_REMOTE;
 	cfg->trust_ctime = 1;
+	cfg->check_stat = 1;
 }
diff --git a/environment.h b/environment.h
index 64d537686e..1d3e2e4f23 100644
--- a/environment.h
+++ b/environment.h
@@ -92,6 +92,7 @@ struct repo_config_values {
 	char *attributes_file;
 	int apply_sparse_checkout;
 	int trust_ctime;
+	int check_stat;
 
 	/* section "branch" config values */
 	enum branch_track branch_track;
@@ -162,7 +163,6 @@ extern char *git_work_tree_cfg;
 
 /* Environment bits from configuration mechanism */
 extern int trust_executable_bit;
-extern int check_stat;
 extern int has_symlinks;
 extern int minimum_abbrev, default_abbrev;
 extern int ignore_case;
diff --git a/statinfo.c b/statinfo.c
index 4fc12053f4..5e00af127d 100644
--- a/statinfo.c
+++ b/statinfo.c
@@ -68,19 +68,19 @@ int match_stat_data(const struct stat_data *sd, struct stat *st)
 
 	if (sd->sd_mtime.sec != (unsigned int)st->st_mtime)
 		changed |= MTIME_CHANGED;
-	if (cfg->trust_ctime && check_stat &&
+	if (cfg->trust_ctime && cfg->check_stat &&
 	    sd->sd_ctime.sec != (unsigned int)st->st_ctime)
 		changed |= CTIME_CHANGED;
 
 #ifdef USE_NSEC
-	if (check_stat && sd->sd_mtime.nsec != ST_MTIME_NSEC(*st))
+	if (cfg->check_stat && sd->sd_mtime.nsec != ST_MTIME_NSEC(*st))
 		changed |= MTIME_CHANGED;
-	if (cfg->trust_ctime && check_stat &&
+	if (cfg->trust_ctime && cfg->check_stat &&
 	    sd->sd_ctime.nsec != ST_CTIME_NSEC(*st))
 		changed |= CTIME_CHANGED;
 #endif
 
-	if (check_stat) {
+	if (cfg->check_stat) {
 		if (sd->sd_uid != (unsigned int) st->st_uid ||
 			sd->sd_gid != (unsigned int) st->st_gid)
 			changed |= OWNER_CHANGED;
@@ -94,7 +94,7 @@ int match_stat_data(const struct stat_data *sd, struct stat *st)
 	 * clients will have different views of what "device"
 	 * the filesystem is on
 	 */
-	if (check_stat && sd->sd_dev != (unsigned int) st->st_dev)
+	if (cfg->check_stat && sd->sd_dev != (unsigned int) st->st_dev)
 			changed |= INODE_CHANGED;
 #endif
 
-- 
2.53.0.155.g9f36b15afa
Olamide Caleb BelloMar 10, 2026, 12:06 UTC in reply to Olamide Caleb Bello on lore

[PATCH v1 3/8] environment: move `zlib_compression_level` into 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` so the value is associated with the repository from which it was read. This preserves existing behavior while avoiding cross-repository state leakage and continues 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>
---
 builtin/index-pack.c | 3 ++-
 diff.c               | 3 ++-
 environment.c        | 6 +++---
 environment.h        | 2 +-
 http-push.c          | 3 ++-
 object-file.c        | 3 ++-
 6 files changed, 12 insertions(+), 8 deletions(-)
Show changes to 6 files +12 −8

builtin/index-pack.c, diff.c, environment.c, environment.h, http-push.c, object-file.c

diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index b67fb0256c..dd82eed76f 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -1416,8 +1416,9 @@ static int write_compressed(struct hashfile *f, void *in, unsigned int size)
 	git_zstream stream;
 	int status;
 	unsigned char outbuf[4096];
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 
-	git_deflate_init(&stream, zlib_compression_level);
+	git_deflate_init(&stream, cfg->zlib_compression_level);
 	stream.next_in = in;
 	stream.avail_in = size;
 
diff --git a/diff.c b/diff.c
index 501648a5c4..4bc0297873 100644
--- a/diff.c
+++ b/diff.c
@@ -3365,8 +3365,9 @@ static unsigned char *deflate_it(char *data,
 	int bound;
 	unsigned char *deflated;
 	git_zstream stream;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 
-	git_deflate_init(&stream, zlib_compression_level);
+	git_deflate_init(&stream, cfg->zlib_compression_level);
 	bound = git_deflate_bound(&stream, size);
 	deflated = xmalloc(bound);
 	stream.next_out = deflated;
diff --git a/environment.c b/environment.c
index 8542ac3141..5b0e88b65c 100644
--- a/environment.c
+++ b/environment.c
@@ -52,7 +52,6 @@ char *git_commit_encoding;
 char *git_log_output_encoding;
 char *apply_default_whitespace;
 char *apply_default_ignorewhitespace;
-int zlib_compression_level = Z_BEST_SPEED;
 int pack_compression_level = Z_DEFAULT_COMPRESSION;
 int fsync_object_files = -1;
 int use_fsync = -1;
@@ -377,7 +376,7 @@ int git_default_core_config(const char *var, const char *value,
 			level = Z_DEFAULT_COMPRESSION;
 		else if (level < 0 || level > Z_BEST_COMPRESSION)
 			die(_("bad zlib compression level %d"), level);
-		zlib_compression_level = level;
+		cfg->zlib_compression_level = level;
 		zlib_compression_seen = 1;
 		return 0;
 	}
@@ -389,7 +388,7 @@ int git_default_core_config(const char *var, const char *value,
 		else if (level < 0 || level > Z_BEST_COMPRESSION)
 			die(_("bad zlib compression level %d"), level);
 		if (!zlib_compression_seen)
-			zlib_compression_level = level;
+			cfg->zlib_compression_level = level;
 		if (!pack_compression_seen)
 			pack_compression_level = level;
 		return 0;
@@ -721,4 +720,5 @@ void repo_config_values_init(struct repo_config_values *cfg)
 	cfg->branch_track = BRANCH_TRACK_REMOTE;
 	cfg->trust_ctime = 1;
 	cfg->check_stat = 1;
+	cfg->zlib_compression_level = Z_BEST_SPEED;
 }
diff --git a/environment.h b/environment.h
index 1d3e2e4f23..93201620af 100644
--- a/environment.h
+++ b/environment.h
@@ -93,6 +93,7 @@ struct repo_config_values {
 	int apply_sparse_checkout;
 	int trust_ctime;
 	int check_stat;
+	int zlib_compression_level;
 
 	/* section "branch" config values */
 	enum branch_track branch_track;
@@ -170,7 +171,6 @@ extern int assume_unchanged;
 extern int warn_on_object_refname_ambiguity;
 extern char *apply_default_whitespace;
 extern char *apply_default_ignorewhitespace;
-extern int zlib_compression_level;
 extern int pack_compression_level;
 extern unsigned long pack_size_limit_cfg;
 
diff --git a/http-push.c b/http-push.c
index 9ae6062198..c6bf9ff387 100644
--- a/http-push.c
+++ b/http-push.c
@@ -369,13 +369,14 @@ static void start_put(struct transfer_request *request)
 	int hdrlen;
 	ssize_t size;
 	git_zstream stream;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 
 	unpacked = odb_read_object(the_repository->objects, &request->obj->oid,
 				   &type, &len);
 	hdrlen = format_object_header(hdr, sizeof(hdr), type, len);
 
 	/* Set it up */
-	git_deflate_init(&stream, zlib_compression_level);
+	git_deflate_init(&stream, cfg->zlib_compression_level);
 	size = git_deflate_bound(&stream, len + hdrlen);
 	strbuf_grow(&request->buffer.buf, size);
 	request->buffer.posn = 0;
diff --git a/object-file.c b/object-file.c
index 3094140055..8b719a915c 100644
--- a/object-file.c
+++ b/object-file.c
@@ -891,6 +891,7 @@ static int start_loose_object_common(struct odb_source *source,
 	const struct git_hash_algo *algo = source->odb->repo->hash_algo;
 	const struct git_hash_algo *compat = source->odb->repo->compat_hash_algo;
 	int fd;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 
 	fd = create_tmpfile(source->odb->repo, tmp_file, filename);
 	if (fd < 0) {
@@ -906,7 +907,7 @@ static int start_loose_object_common(struct odb_source *source,
 	}
 
 	/*  Setup zlib stream for compression */
-	git_deflate_init(stream, zlib_compression_level);
+	git_deflate_init(stream, cfg->zlib_compression_level);
 	stream->next_out = buf;
 	stream->avail_out = buflen;
 	algo->init_fn(c);
-- 
2.53.0.155.g9f36b15afa
Olamide Caleb BelloMar 10, 2026, 12:06 UTC in reply to Olamide Caleb Bello on lore

[PATCH v1 4/8] 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` so the value is associated with the repository from which it was read. This preserves existing behavior while avoiding cross-repository state leakage and is another step toward eliminating repository-dependent global 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>
---
 builtin/fast-import.c  | 8 +++++---
 builtin/pack-objects.c | 8 ++++++--
 environment.c          | 8 +++++---
 environment.h          | 2 +-
 object-file.c          | 3 ++-
 5 files changed, 19 insertions(+), 10 deletions(-)
Show changes to 5 files +19 −10

builtin/fast-import.c, builtin/pack-objects.c, environment.c, environment.h, object-file.c

diff --git a/builtin/fast-import.c b/builtin/fast-import.c
index b8a7757cfd..6475cdae85 100644
--- a/builtin/fast-import.c
+++ b/builtin/fast-import.c
@@ -963,6 +963,7 @@ static int store_object(
 	unsigned long hdrlen, deltalen;
 	struct git_hash_ctx c;
 	git_zstream s;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 
 	hdrlen = format_object_header((char *)hdr, sizeof(hdr), type,
 				      dat->len);
@@ -1001,7 +1002,7 @@ static int store_object(
 	} else
 		delta = NULL;
 
-	git_deflate_init(&s, pack_compression_level);
+	git_deflate_init(&s, cfg->pack_compression_level);
 	if (delta) {
 		s.next_in = delta;
 		s.avail_in = deltalen;
@@ -1028,7 +1029,7 @@ static int store_object(
 		if (delta) {
 			FREE_AND_NULL(delta);
 
-			git_deflate_init(&s, pack_compression_level);
+			git_deflate_init(&s, cfg->pack_compression_level);
 			s.next_in = (void *)dat->buf;
 			s.avail_in = dat->len;
 			s.avail_out = git_deflate_bound(&s, s.avail_in);
@@ -1111,6 +1112,7 @@ static void stream_blob(uintmax_t len, struct object_id *oidout, uintmax_t mark)
 	struct git_hash_ctx c;
 	git_zstream s;
 	struct hashfile_checkpoint checkpoint;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 	int status = Z_OK;
 
 	/* Determine if we should auto-checkpoint. */
@@ -1130,7 +1132,7 @@ static void stream_blob(uintmax_t len, struct object_id *oidout, uintmax_t mark)
 
 	crc32_begin(pack_file);
 
-	git_deflate_init(&s, pack_compression_level);
+	git_deflate_init(&s, cfg->pack_compression_level);
 
 	hdrlen = encode_in_pack_object_header(out_buf, out_sz, OBJ_BLOB, len);
 
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index c1ee4d5ed7..f5164486ea 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -383,8 +383,9 @@ static unsigned long do_compress(void **pptr, unsigned long size)
 	git_zstream stream;
 	void *in, *out;
 	unsigned long maxsize;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 
-	git_deflate_init(&stream, pack_compression_level);
+	git_deflate_init(&stream, cfg->pack_compression_level);
 	maxsize = git_deflate_bound(&stream, size);
 
 	in = *pptr;
@@ -410,8 +411,9 @@ static unsigned long write_large_blob_data(struct odb_read_stream *st, struct ha
 	unsigned char ibuf[1024 * 16];
 	unsigned char obuf[1024 * 16];
 	unsigned long olen = 0;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 
-	git_deflate_init(&stream, pack_compression_level);
+	git_deflate_init(&stream, cfg->pack_compression_level);
 
 	for (;;) {
 		ssize_t readlen;
@@ -4868,6 +4870,8 @@ int cmd_pack_objects(int argc,
 	struct string_list keep_pack_list = STRING_LIST_INIT_NODUP;
 	struct list_objects_filter_options filter_options =
 		LIST_OBJECTS_FILTER_INIT;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
+	int pack_compression_level = cfg->pack_compression_level;
 
 	struct option pack_objects_options[] = {
 		OPT_CALLBACK_F('q', "quiet", &progress, NULL,
diff --git a/environment.c b/environment.c
index 5b0e88b65c..d0d3a4b7d2 100644
--- a/environment.c
+++ b/environment.c
@@ -52,7 +52,6 @@ char *git_commit_encoding;
 char *git_log_output_encoding;
 char *apply_default_whitespace;
 char *apply_default_ignorewhitespace;
-int pack_compression_level = Z_DEFAULT_COMPRESSION;
 int fsync_object_files = -1;
 int use_fsync = -1;
 enum fsync_method fsync_method = FSYNC_METHOD_DEFAULT;
@@ -390,7 +389,7 @@ int git_default_core_config(const char *var, const char *value,
 		if (!zlib_compression_seen)
 			cfg->zlib_compression_level = level;
 		if (!pack_compression_seen)
-			pack_compression_level = level;
+			cfg->pack_compression_level = level;
 		return 0;
 	}
 
@@ -662,6 +661,8 @@ static int git_default_attr_config(const char *var, const char *value)
 int git_default_config(const char *var, const char *value,
 		       const struct config_context *ctx, void *cb)
 {
+	struct repo_config_values *cfg = repo_config_values(the_repository);
+
 	if (starts_with(var, "core."))
 		return git_default_core_config(var, value, ctx, cb);
 
@@ -701,7 +702,7 @@ int git_default_config(const char *var, const char *value,
 			level = Z_DEFAULT_COMPRESSION;
 		else if (level < 0 || level > Z_BEST_COMPRESSION)
 			die(_("bad pack compression level %d"), level);
-		pack_compression_level = level;
+		cfg->pack_compression_level = level;
 		pack_compression_seen = 1;
 		return 0;
 	}
@@ -721,4 +722,5 @@ void repo_config_values_init(struct repo_config_values *cfg)
 	cfg->trust_ctime = 1;
 	cfg->check_stat = 1;
 	cfg->zlib_compression_level = Z_BEST_SPEED;
+	cfg->pack_compression_level = Z_DEFAULT_COMPRESSION;
 }
diff --git a/environment.h b/environment.h
index 93201620af..514576b67a 100644
--- a/environment.h
+++ b/environment.h
@@ -94,6 +94,7 @@ struct repo_config_values {
 	int trust_ctime;
 	int check_stat;
 	int zlib_compression_level;
+	int pack_compression_level;
 
 	/* section "branch" config values */
 	enum branch_track branch_track;
@@ -171,7 +172,6 @@ extern int assume_unchanged;
 extern int warn_on_object_refname_ambiguity;
 extern char *apply_default_whitespace;
 extern char *apply_default_ignorewhitespace;
-extern int pack_compression_level;
 extern unsigned long pack_size_limit_cfg;
 
 extern int precomposed_unicode;
diff --git a/object-file.c b/object-file.c
index 8b719a915c..87179fc667 100644
--- a/object-file.c
+++ b/object-file.c
@@ -1420,8 +1420,9 @@ static int stream_blob_to_pack(struct transaction_packfile *state,
 	int status = Z_OK;
 	int write_object = (flags & INDEX_WRITE_OBJECT);
 	off_t offset = 0;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 
-	git_deflate_init(&s, pack_compression_level);
+	git_deflate_init(&s, cfg->pack_compression_level);
 
 	hdrlen = encode_in_pack_object_header(obuf, sizeof(obuf), OBJ_BLOB, size);
 	s.next_out = obuf + hdrlen;
-- 
2.53.0.155.g9f36b15afa
Olamide Caleb BelloMar 10, 2026, 12:06 UTC in reply to Olamide Caleb Bello on lore

[PATCH v1 5/8] 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` so the value is associated with the repository from which it was read. This preserves existing behavior while avoiding cross-repository state leakage and is another step toward eliminating repository-dependent global 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>
---
 compat/precompose_utf8.c | 20 +++++++++++++-------
 environment.c            |  4 ++--
 environment.h            |  2 +-
 upload-pack.c            |  3 ++-
 4 files changed, 18 insertions(+), 11 deletions(-)
Show changes to 4 files +18 −11

compat/precompose_utf8.c, environment.c, environment.h, upload-pack.c

diff --git a/compat/precompose_utf8.c b/compat/precompose_utf8.c
index 43b3be0114..0e94dbd862 100644
--- a/compat/precompose_utf8.c
+++ b/compat/precompose_utf8.c
@@ -48,16 +48,18 @@ void probe_utf8_pathname_composition(void)
 	static const char *auml_nfc = "\xc3\xa4";
 	static const char *auml_nfd = "\x61\xcc\x88";
 	int output_fd;
-	if (precomposed_unicode != -1)
+	struct repo_config_values *cfg = repo_config_values(the_repository);
+
+	if (cfg->precomposed_unicode != -1)
 		return; /* We found it defined in the global config, respect it */
 	repo_git_path_replace(the_repository, &path, "%s", auml_nfc);
 	output_fd = open(path.buf, O_CREAT|O_EXCL|O_RDWR, 0600);
 	if (output_fd >= 0) {
 		close(output_fd);
 		repo_git_path_replace(the_repository, &path, "%s", auml_nfd);
-		precomposed_unicode = access(path.buf, R_OK) ? 0 : 1;
+		cfg->precomposed_unicode = access(path.buf, R_OK) ? 0 : 1;
 		repo_config_set(the_repository, "core.precomposeunicode",
-				precomposed_unicode ? "true" : "false");
+				cfg->precomposed_unicode ? "true" : "false");
 		repo_git_path_replace(the_repository, &path, "%s", auml_nfc);
 		if (unlink(path.buf))
 			die_errno(_("failed to unlink '%s'"), path.buf);
@@ -69,14 +71,16 @@ const char *precompose_string_if_needed(const char *in)
 {
 	size_t inlen;
 	size_t outlen;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
+
 	if (!in)
 		return NULL;
 	if (has_non_ascii(in, (size_t)-1, &inlen)) {
 		iconv_t ic_prec;
 		char *out;
-		if (precomposed_unicode < 0)
-			repo_config_get_bool(the_repository, "core.precomposeunicode", &precomposed_unicode);
-		if (precomposed_unicode != 1)
+		if (cfg->precomposed_unicode < 0)
+			repo_config_get_bool(the_repository, "core.precomposeunicode", &cfg->precomposed_unicode);
+		if (cfg->precomposed_unicode != 1)
 			return in;
 		ic_prec = iconv_open(repo_encoding, path_encoding);
 		if (ic_prec == (iconv_t) -1)
@@ -130,7 +134,9 @@ PREC_DIR *precompose_utf8_opendir(const char *dirname)
 
 struct dirent_prec_psx *precompose_utf8_readdir(PREC_DIR *prec_dir)
 {
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 	struct dirent *res;
+
 	res = readdir(prec_dir->dirp);
 	if (res) {
 		size_t namelenz = strlen(res->d_name) + 1; /* \0 */
@@ -149,7 +155,7 @@ struct dirent_prec_psx *precompose_utf8_readdir(PREC_DIR *prec_dir)
 		prec_dir->dirent_nfc->d_ino  = res->d_ino;
 		prec_dir->dirent_nfc->d_type = res->d_type;
 
-		if ((precomposed_unicode == 1) && has_non_ascii(res->d_name, (size_t)-1, NULL)) {
+		if ((cfg->precomposed_unicode == 1) && has_non_ascii(res->d_name, (size_t)-1, NULL)) {
 			if (prec_dir->ic_precompose == (iconv_t)-1) {
 				die("iconv_open(%s,%s) failed, but needed:\n"
 						"    precomposed unicode is not supported.\n"
diff --git a/environment.c b/environment.c
index d0d3a4b7d2..739b647ebe 100644
--- a/environment.c
+++ b/environment.c
@@ -72,7 +72,6 @@ enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE;
 int grafts_keep_true_parents;
 int core_sparse_checkout_cone;
 int sparse_expect_files_outside_of_patterns;
-int precomposed_unicode = -1; /* see probe_utf8_pathname_composition() */
 unsigned long pack_size_limit_cfg;
 
 #ifndef PROTECT_HFS_DEFAULT
@@ -532,7 +531,7 @@ int git_default_core_config(const char *var, const char *value,
 	}
 
 	if (!strcmp(var, "core.precomposeunicode")) {
-		precomposed_unicode = git_config_bool(var, value);
+		cfg->precomposed_unicode = git_config_bool(var, value);
 		return 0;
 	}
 
@@ -723,4 +722,5 @@ void repo_config_values_init(struct repo_config_values *cfg)
 	cfg->check_stat = 1;
 	cfg->zlib_compression_level = Z_BEST_SPEED;
 	cfg->pack_compression_level = Z_DEFAULT_COMPRESSION;
+	cfg->precomposed_unicode = -1; /* see probe_utf8_pathname_composition() */
 }
diff --git a/environment.h b/environment.h
index 514576b67a..508cb1afbc 100644
--- a/environment.h
+++ b/environment.h
@@ -95,6 +95,7 @@ struct repo_config_values {
 	int check_stat;
 	int zlib_compression_level;
 	int pack_compression_level;
+	int precomposed_unicode;
 
 	/* section "branch" config values */
 	enum branch_track branch_track;
@@ -174,7 +175,6 @@ extern char *apply_default_whitespace;
 extern char *apply_default_ignorewhitespace;
 extern unsigned long pack_size_limit_cfg;
 
-extern int precomposed_unicode;
 extern int protect_hfs;
 extern int protect_ntfs;
 
diff --git a/upload-pack.c b/upload-pack.c
index 88dac1b65c..afa3ef7655 100644
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -1288,6 +1288,7 @@ static int upload_pack_config(const char *var, const char *value,
 			      void *cb_data)
 {
 	struct upload_pack_data *data = cb_data;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 
 	if (!strcmp("uploadpack.allowtipsha1inwant", var)) {
 		if (git_config_bool(var, value))
@@ -1318,7 +1319,7 @@ static int upload_pack_config(const char *var, const char *value,
 		if (value)
 			data->allow_packfile_uris = 1;
 	} else if (!strcmp("core.precomposeunicode", var)) {
-		precomposed_unicode = git_config_bool(var, value);
+		cfg->precomposed_unicode = git_config_bool(var, value);
 	} else if (!strcmp("transfer.advertisesid", var)) {
 		data->advertise_sid = git_config_bool(var, value);
 	}
-- 
2.53.0.155.g9f36b15afa
Olamide Caleb BelloMar 10, 2026, 12:06 UTC in reply to Olamide Caleb Bello on lore

[PATCH v1 6/8] env: move "core_sparse_checkout_cone" into `struct repo_config_values`

The `core_sparse_checkout_cone` variable was previously a global integer, uninitialized by default. Storing repository-dependent configuration in globals can lead to cross-repository state leakage.

Move it into `repo_config_values` and initialize it to 0 by default. This ensures predictable behavior for repositories that do not set this configuration while preserving existing semantics.

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>
---
 builtin/mv.c              |  2 +-
 builtin/sparse-checkout.c | 37 ++++++++++++++++++++++---------------
 dir.c                     |  3 ++-
 environment.c             |  4 ++--
 environment.h             |  2 +-
 sparse-index.c            |  2 +-
 6 files changed, 29 insertions(+), 21 deletions(-)
Show changes to 6 files +29 −21

builtin/mv.c, builtin/sparse-checkout.c, dir.c, environment.c, environment.h, sparse-index.c

diff --git a/builtin/mv.c b/builtin/mv.c
index 2215d34e31..ef3a326c90 100644
--- a/builtin/mv.c
+++ b/builtin/mv.c
@@ -574,7 +574,7 @@ int cmd_mv(int argc,
 
 		if (ignore_sparse &&
 		    cfg->apply_sparse_checkout &&
-		    core_sparse_checkout_cone) {
+		    cfg->core_sparse_checkout_cone) {
 			/*
 			 * NEEDSWORK: we are *not* paying attention to
 			 * "out-to-out" move (<source> is out-of-cone and
diff --git a/builtin/sparse-checkout.c b/builtin/sparse-checkout.c
index f4aa405da9..92d017b81f 100644
--- a/builtin/sparse-checkout.c
+++ b/builtin/sparse-checkout.c
@@ -73,7 +73,7 @@ static int sparse_checkout_list(int argc, const char **argv, const char *prefix,
 
 	memset(&pl, 0, sizeof(pl));
 
-	pl.use_cone_patterns = core_sparse_checkout_cone;
+	pl.use_cone_patterns = cfg->core_sparse_checkout_cone;
 
 	sparse_filename = get_sparse_checkout_filename();
 	res = add_patterns_from_file_to_list(sparse_filename, "", 0, &pl, NULL, 0);
@@ -334,6 +334,7 @@ static int write_patterns_and_update(struct repository *repo,
 	FILE *fp;
 	struct lock_file lk = LOCK_INIT;
 	int result;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 
 	sparse_filename = get_sparse_checkout_filename();
 
@@ -353,7 +354,7 @@ static int write_patterns_and_update(struct repository *repo,
 	if (!fp)
 		die_errno(_("unable to fdopen %s"), get_lock_file_path(&lk));
 
-	if (core_sparse_checkout_cone)
+	if (cfg->core_sparse_checkout_cone)
 		write_cone_to_file(fp, pl);
 	else
 		write_patterns_to_file(fp, pl);
@@ -402,15 +403,15 @@ static enum sparse_checkout_mode update_cone_mode(int *cone_mode) {
 
 	/* If not specified, use previous definition of cone mode */
 	if (*cone_mode == -1 && cfg->apply_sparse_checkout)
-		*cone_mode = core_sparse_checkout_cone;
+		*cone_mode = cfg->core_sparse_checkout_cone;
 
 	/* Set cone/non-cone mode appropriately */
 	cfg->apply_sparse_checkout = 1;
 	if (*cone_mode == 1 || *cone_mode == -1) {
-		core_sparse_checkout_cone = 1;
+		cfg->core_sparse_checkout_cone = 1;
 		return MODE_CONE_PATTERNS;
 	}
-	core_sparse_checkout_cone = 0;
+	cfg->core_sparse_checkout_cone = 0;
 	return MODE_ALL_PATTERNS;
 }
 
@@ -577,7 +578,9 @@ static void add_patterns_from_input(struct pattern_list *pl,
 				    FILE *file)
 {
 	int i;
-	if (core_sparse_checkout_cone) {
+	struct repo_config_values *cfg = repo_config_values(the_repository);
+
+	if (cfg->core_sparse_checkout_cone) {
 		struct strbuf line = STRBUF_INIT;
 
 		hashmap_init(&pl->recursive_hashmap, pl_hashmap_cmp, NULL, 0);
@@ -636,13 +639,14 @@ static void add_patterns_cone_mode(int argc, const char **argv,
 	struct pattern_entry *pe;
 	struct hashmap_iter iter;
 	struct pattern_list existing;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 	char *sparse_filename = get_sparse_checkout_filename();
 
 	add_patterns_from_input(pl, argc, argv,
 				use_stdin ? stdin : NULL);
 
 	memset(&existing, 0, sizeof(existing));
-	existing.use_cone_patterns = core_sparse_checkout_cone;
+	existing.use_cone_patterns = cfg->core_sparse_checkout_cone;
 
 	if (add_patterns_from_file_to_list(sparse_filename, "", 0,
 					   &existing, NULL, 0))
@@ -690,7 +694,7 @@ static int modify_pattern_list(struct repository *repo,
 
 	switch (m) {
 	case ADD:
-		if (core_sparse_checkout_cone)
+		if (cfg->core_sparse_checkout_cone)
 			add_patterns_cone_mode(args->nr, args->v, pl, use_stdin);
 		else
 			add_patterns_literal(args->nr, args->v, pl, use_stdin);
@@ -723,11 +727,12 @@ static void sanitize_paths(struct repository *repo,
 			   const char *prefix, int skip_checks)
 {
 	int i;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 
 	if (!args->nr)
 		return;
 
-	if (prefix && *prefix && core_sparse_checkout_cone) {
+	if (prefix && *prefix && cfg->core_sparse_checkout_cone) {
 		/*
 		 * The args are not pathspecs, so unfortunately we
 		 * cannot imitate how cmd_add() uses parse_pathspec().
@@ -744,10 +749,10 @@ static void sanitize_paths(struct repository *repo,
 	if (skip_checks)
 		return;
 
-	if (prefix && *prefix && !core_sparse_checkout_cone)
+	if (prefix && *prefix && !cfg->core_sparse_checkout_cone)
 		die(_("please run from the toplevel directory in non-cone mode"));
 
-	if (core_sparse_checkout_cone) {
+	if (cfg->core_sparse_checkout_cone) {
 		for (i = 0; i < args->nr; i++) {
 			if (args->v[i][0] == '/')
 				die(_("specify directories rather than patterns (no leading slash)"));
@@ -769,7 +774,7 @@ static void sanitize_paths(struct repository *repo,
 		if (S_ISSPARSEDIR(ce->ce_mode))
 			continue;
 
-		if (core_sparse_checkout_cone)
+		if (cfg->core_sparse_checkout_cone)
 			die(_("'%s' is not a directory; to treat it as a directory anyway, rerun with --skip-checks"), args->v[i]);
 		else
 			warning(_("pass a leading slash before paths such as '%s' if you want a single file (see NON-CONE PROBLEMS in the git-sparse-checkout manual)."), args->v[i]);
@@ -836,6 +841,7 @@ static struct sparse_checkout_set_opts {
 static int sparse_checkout_set(int argc, const char **argv, const char *prefix,
 			       struct repository *repo)
 {
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 	int default_patterns_nr = 2;
 	const char *default_patterns[] = {"/*", "!/*/", NULL};
 
@@ -873,7 +879,7 @@ static int sparse_checkout_set(int argc, const char **argv, const char *prefix,
 	 * non-cone mode, if nothing is specified, manually select just the
 	 * top-level directory (much as 'init' would do).
 	 */
-	if (!core_sparse_checkout_cone && !set_opts.use_stdin && argc == 0) {
+	if (!cfg->core_sparse_checkout_cone && !set_opts.use_stdin && argc == 0) {
 		for (int i = 0; i < default_patterns_nr; i++)
 			strvec_push(&patterns, default_patterns[i]);
 	} else {
@@ -977,7 +983,7 @@ static int sparse_checkout_clean(int argc, const char **argv,
 	setup_work_tree();
 	if (!cfg->apply_sparse_checkout)
 		die(_("must be in a sparse-checkout to clean directories"));
-	if (!core_sparse_checkout_cone)
+	if (!cfg->core_sparse_checkout_cone)
 		die(_("must be in a cone-mode sparse-checkout to clean directories"));
 
 	argc = parse_options(argc, argv, prefix,
@@ -1141,6 +1147,7 @@ static int sparse_checkout_check_rules(int argc, const char **argv, const char *
 	FILE *fp;
 	int ret;
 	struct pattern_list pl = {0};
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 	char *sparse_filename;
 	check_rules_opts.cone_mode = -1;
 
@@ -1152,7 +1159,7 @@ static int sparse_checkout_check_rules(int argc, const char **argv, const char *
 		check_rules_opts.cone_mode = 1;
 
 	update_cone_mode(&check_rules_opts.cone_mode);
-	pl.use_cone_patterns = core_sparse_checkout_cone;
+	pl.use_cone_patterns = cfg->core_sparse_checkout_cone;
 	if (check_rules_opts.rules_file) {
 		fp = xfopen(check_rules_opts.rules_file, "r");
 		add_patterns_from_input(&pl, argc, argv, fp);
diff --git a/dir.c b/dir.c
index 026d8516a9..2744b3e5ca 100644
--- a/dir.c
+++ b/dir.c
@@ -3508,8 +3508,9 @@ int get_sparse_checkout_patterns(struct pattern_list *pl)
 {
 	int res;
 	char *sparse_filename = get_sparse_checkout_filename();
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 
-	pl->use_cone_patterns = core_sparse_checkout_cone;
+	pl->use_cone_patterns = cfg->core_sparse_checkout_cone;
 	res = add_patterns_from_file_to_list(sparse_filename, "", 0, pl, NULL, 0);
 
 	free(sparse_filename);
diff --git a/environment.c b/environment.c
index 739b647ebe..b0e873e9f5 100644
--- a/environment.c
+++ b/environment.c
@@ -70,7 +70,6 @@ enum push_default_type push_default = PUSH_DEFAULT_UNSPECIFIED;
 #endif
 enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE;
 int grafts_keep_true_parents;
-int core_sparse_checkout_cone;
 int sparse_expect_files_outside_of_patterns;
 unsigned long pack_size_limit_cfg;
 
@@ -526,7 +525,7 @@ int git_default_core_config(const char *var, const char *value,
 	}
 
 	if (!strcmp(var, "core.sparsecheckoutcone")) {
-		core_sparse_checkout_cone = git_config_bool(var, value);
+		cfg->core_sparse_checkout_cone = git_config_bool(var, value);
 		return 0;
 	}
 
@@ -723,4 +722,5 @@ void repo_config_values_init(struct repo_config_values *cfg)
 	cfg->zlib_compression_level = Z_BEST_SPEED;
 	cfg->pack_compression_level = Z_DEFAULT_COMPRESSION;
 	cfg->precomposed_unicode = -1; /* see probe_utf8_pathname_composition() */
+	cfg->core_sparse_checkout_cone = 0;
 }
diff --git a/environment.h b/environment.h
index 508cb1afbc..befad9a388 100644
--- a/environment.h
+++ b/environment.h
@@ -96,6 +96,7 @@ struct repo_config_values {
 	int zlib_compression_level;
 	int pack_compression_level;
 	int precomposed_unicode;
+	int core_sparse_checkout_cone;
 
 	/* section "branch" config values */
 	enum branch_track branch_track;
@@ -178,7 +179,6 @@ extern unsigned long pack_size_limit_cfg;
 extern int protect_hfs;
 extern int protect_ntfs;
 
-extern int core_sparse_checkout_cone;
 extern int sparse_expect_files_outside_of_patterns;
 
 enum rebase_setup_type {
diff --git a/sparse-index.c b/sparse-index.c
index 13629c075d..53cb8d64fc 100644
--- a/sparse-index.c
+++ b/sparse-index.c
@@ -154,7 +154,7 @@ int is_sparse_index_allowed(struct index_state *istate, int flags)
 {
 	struct repo_config_values *cfg = repo_config_values(the_repository);
 
-	if (!cfg->apply_sparse_checkout || !core_sparse_checkout_cone)
+	if (!cfg->apply_sparse_checkout || !cfg->core_sparse_checkout_cone)
 		return 0;
 
 	if (!(flags & SPARSE_INDEX_MEMORY_ONLY)) {
-- 
2.53.0.155.g9f36b15afa
Olamide Caleb BelloMar 10, 2026, 12:06 UTC in reply to Olamide Caleb Bello on lore

[PATCH v1 7/8] env: put "sparse_expect_files_outside_of_patterns" in `repo_config_values`

The `sparse_expect_files_outside_of_patterns` variable was previously a global variable, which makes it shared across repository instances within a single process.

Move it into `repo_config_values`, this makes the value tied to the repository from which it was read. This preserves existing behavior while avoiding cross-repository state leakage and is another step toward eliminating repository-dependent global 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>
---
 environment.c  | 6 ++++--
 environment.h  | 5 +++--
 sparse-index.c | 2 +-
 3 files changed, 8 insertions(+), 5 deletions(-)
Show changes to 3 files +8 −5

environment.c, environment.h, sparse-index.c

diff --git a/environment.c b/environment.c
index b0e873e9f5..57587ede56 100644
--- a/environment.c
+++ b/environment.c
@@ -70,7 +70,6 @@ enum push_default_type push_default = PUSH_DEFAULT_UNSPECIFIED;
 #endif
 enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE;
 int grafts_keep_true_parents;
-int sparse_expect_files_outside_of_patterns;
 unsigned long pack_size_limit_cfg;
 
 #ifndef PROTECT_HFS_DEFAULT
@@ -550,8 +549,10 @@ int git_default_core_config(const char *var, const char *value,
 
 static int git_default_sparse_config(const char *var, const char *value)
 {
+	struct repo_config_values *cfg = repo_config_values(the_repository);
+
 	if (!strcmp(var, "sparse.expectfilesoutsideofpatterns")) {
-		sparse_expect_files_outside_of_patterns = git_config_bool(var, value);
+		cfg->sparse_expect_files_outside_of_patterns = git_config_bool(var, value);
 		return 0;
 	}
 
@@ -723,4 +724,5 @@ void repo_config_values_init(struct repo_config_values *cfg)
 	cfg->pack_compression_level = Z_DEFAULT_COMPRESSION;
 	cfg->precomposed_unicode = -1; /* see probe_utf8_pathname_composition() */
 	cfg->core_sparse_checkout_cone = 0;
+	cfg->sparse_expect_files_outside_of_patterns = 0;
 }
diff --git a/environment.h b/environment.h
index befad9a388..609cdaa07f 100644
--- a/environment.h
+++ b/environment.h
@@ -98,6 +98,9 @@ struct repo_config_values {
 	int precomposed_unicode;
 	int core_sparse_checkout_cone;
 
+	/* section "sparse" config values */
+	int sparse_expect_files_outside_of_patterns;
+
 	/* section "branch" config values */
 	enum branch_track branch_track;
 };
@@ -179,8 +182,6 @@ extern unsigned long pack_size_limit_cfg;
 extern int protect_hfs;
 extern int protect_ntfs;
 
-extern int sparse_expect_files_outside_of_patterns;
-
 enum rebase_setup_type {
 	AUTOREBASE_NEVER = 0,
 	AUTOREBASE_LOCAL,
diff --git a/sparse-index.c b/sparse-index.c
index 53cb8d64fc..1ed769b78d 100644
--- a/sparse-index.c
+++ b/sparse-index.c
@@ -675,7 +675,7 @@ void clear_skip_worktree_from_present_files(struct index_state *istate)
 	struct repo_config_values *cfg = repo_config_values(the_repository);
 
 	if (!cfg->apply_sparse_checkout ||
-	    sparse_expect_files_outside_of_patterns)
+	    cfg->sparse_expect_files_outside_of_patterns)
 		return;
 
 	if (clear_skip_worktree_from_present_files_sparse(istate)) {
-- 
2.53.0.155.g9f36b15afa
Olamide Caleb BelloMar 10, 2026, 12:06 UTC in reply to Olamide Caleb Bello on lore

[PATCH v1 8/8] env: move "warn_on_object_refname_ambiguity" into `repo_config_values`

The `warn_on_object_refname_ambiguity` variable was previously a global integer, which makes it shared across repository instances in a single process.

Move it into `repo_config_values` so the value is associated with the repository from which it was read. This preserves existing behavior while avoiding cross-repository state leakage and is another step toward eliminating repository-dependent global 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>
---
 builtin/cat-file.c     | 7 ++++---
 builtin/pack-objects.c | 7 ++++---
 environment.c          | 2 +-
 environment.h          | 2 +-
 object-name.c          | 3 ++-
 revision.c             | 7 ++++---
 submodule.c            | 7 ++++---
 7 files changed, 20 insertions(+), 15 deletions(-)
Show changes to 7 files +20 −15

builtin/cat-file.c, builtin/pack-objects.c, environment.c, environment.h, object-name.c, revision.c, submodule.c

diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index da059d0e26..32f60f2f64 100644
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -897,6 +897,7 @@ static int batch_objects(struct batch_options *opt)
 	struct strbuf input = STRBUF_INIT;
 	struct strbuf output = STRBUF_INIT;
 	struct expand_data data = EXPAND_DATA_INIT;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 	int save_warning;
 	int retval = 0;
 
@@ -969,8 +970,8 @@ static int batch_objects(struct batch_options *opt)
 	 * warn) ends up dwarfing the actual cost of the object lookups
 	 * themselves. We can work around it by just turning off the warning.
 	 */
-	save_warning = warn_on_object_refname_ambiguity;
-	warn_on_object_refname_ambiguity = 0;
+	save_warning = cfg->warn_on_object_refname_ambiguity;
+	cfg->warn_on_object_refname_ambiguity = 0;
 
 	if (opt->batch_mode == BATCH_MODE_QUEUE_AND_DISPATCH) {
 		batch_objects_command(opt, &output, &data);
@@ -998,7 +999,7 @@ static int batch_objects(struct batch_options *opt)
  cleanup:
 	strbuf_release(&input);
 	strbuf_release(&output);
-	warn_on_object_refname_ambiguity = save_warning;
+	cfg->warn_on_object_refname_ambiguity = save_warning;
 	return retval;
 }
 
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index f5164486ea..964c46d682 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -4653,6 +4653,7 @@ static void get_object_list(struct rev_info *revs, struct strvec *argv)
 	struct setup_revision_opt s_r_opt = {
 		.allow_exclude_promisor_objects = 1,
 	};
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 	char line[1000];
 	int flags = 0;
 	int save_warning;
@@ -4663,8 +4664,8 @@ static void get_object_list(struct rev_info *revs, struct strvec *argv)
 	/* make sure shallows are read */
 	is_repository_shallow(the_repository);
 
-	save_warning = warn_on_object_refname_ambiguity;
-	warn_on_object_refname_ambiguity = 0;
+	save_warning = cfg->warn_on_object_refname_ambiguity;
+	cfg->warn_on_object_refname_ambiguity = 0;
 
 	while (fgets(line, sizeof(line), stdin) != NULL) {
 		int len = strlen(line);
@@ -4692,7 +4693,7 @@ static void get_object_list(struct rev_info *revs, struct strvec *argv)
 			die(_("bad revision '%s'"), line);
 	}
 
-	warn_on_object_refname_ambiguity = save_warning;
+	cfg->warn_on_object_refname_ambiguity = save_warning;
 
 	if (use_bitmap_index && !get_object_list_from_bitmap(revs))
 		return;
diff --git a/environment.c b/environment.c
index 57587ede56..ba2c60103f 100644
--- a/environment.c
+++ b/environment.c
@@ -47,7 +47,6 @@ int minimum_abbrev = 4, default_abbrev = -1;
 int ignore_case;
 int assume_unchanged;
 int is_bare_repository_cfg = -1; /* unspecified */
-int warn_on_object_refname_ambiguity = 1;
 char *git_commit_encoding;
 char *git_log_output_encoding;
 char *apply_default_whitespace;
@@ -725,4 +724,5 @@ void repo_config_values_init(struct repo_config_values *cfg)
 	cfg->precomposed_unicode = -1; /* see probe_utf8_pathname_composition() */
 	cfg->core_sparse_checkout_cone = 0;
 	cfg->sparse_expect_files_outside_of_patterns = 0;
+	cfg->warn_on_object_refname_ambiguity = 1;
 }
diff --git a/environment.h b/environment.h
index 609cdaa07f..1ff0a7ba8b 100644
--- a/environment.h
+++ b/environment.h
@@ -97,6 +97,7 @@ struct repo_config_values {
 	int pack_compression_level;
 	int precomposed_unicode;
 	int core_sparse_checkout_cone;
+	int warn_on_object_refname_ambiguity;
 
 	/* section "sparse" config values */
 	int sparse_expect_files_outside_of_patterns;
@@ -174,7 +175,6 @@ extern int has_symlinks;
 extern int minimum_abbrev, default_abbrev;
 extern int ignore_case;
 extern int assume_unchanged;
-extern int warn_on_object_refname_ambiguity;
 extern char *apply_default_whitespace;
 extern char *apply_default_ignorewhitespace;
 extern unsigned long pack_size_limit_cfg;
diff --git a/object-name.c b/object-name.c
index 7b14c3bf9b..ddd863d293 100644
--- a/object-name.c
+++ b/object-name.c
@@ -969,11 +969,12 @@ static int get_oid_basic(struct repository *r, const char *str, int len,
 	int refs_found = 0;
 	int at, reflog_len, nth_prior = 0;
 	int fatal = !(flags & GET_OID_QUIETLY);
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 
 	if (len == r->hash_algo->hexsz && !get_oid_hex(str, oid)) {
 		if (!(flags & GET_OID_SKIP_AMBIGUITY_CHECK) &&
 		    repo_settings_get_warn_ambiguous_refs(r) &&
-		    warn_on_object_refname_ambiguity) {
+		    cfg->warn_on_object_refname_ambiguity) {
 			refs_found = repo_dwim_ref(r, str, len, &tmp_oid, &real_ref, 0);
 			if (refs_found > 0) {
 				warning(warn_msg, len, str);
diff --git a/revision.c b/revision.c
index 402eb1b029..cff821132b 100644
--- a/revision.c
+++ b/revision.c
@@ -2904,9 +2904,10 @@ static void read_revisions_from_stdin(struct rev_info *revs,
 	int seen_end_of_options = 0;
 	int save_warning;
 	int flags = 0;
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 
-	save_warning = warn_on_object_refname_ambiguity;
-	warn_on_object_refname_ambiguity = 0;
+	save_warning = cfg->warn_on_object_refname_ambiguity;
+	cfg->warn_on_object_refname_ambiguity = 0;
 
 	strbuf_init(&sb, 1000);
 	while (strbuf_getline(&sb, stdin) != EOF) {
@@ -2940,7 +2941,7 @@ static void read_revisions_from_stdin(struct rev_info *revs,
 		read_pathspec_from_stdin(&sb, prune);
 
 	strbuf_release(&sb);
-	warn_on_object_refname_ambiguity = save_warning;
+	cfg->warn_on_object_refname_ambiguity = save_warning;
 }
 
 static void NORETURN diagnose_missing_default(const char *def)
diff --git a/submodule.c b/submodule.c
index 508938e4da..486b41011c 100644
--- a/submodule.c
+++ b/submodule.c
@@ -898,12 +898,13 @@ static void collect_changed_submodules(struct repository *r,
 	struct setup_revision_opt s_r_opt = {
 		.assume_dashdash = 1,
 	};
+	struct repo_config_values *cfg = repo_config_values(the_repository);
 
-	save_warning = warn_on_object_refname_ambiguity;
-	warn_on_object_refname_ambiguity = 0;
+	save_warning = cfg->warn_on_object_refname_ambiguity;
+	cfg->warn_on_object_refname_ambiguity = 0;
 	repo_init_revisions(r, &rev, NULL);
 	setup_revisions_from_strvec(argv, &rev, &s_r_opt);
-	warn_on_object_refname_ambiguity = save_warning;
+	cfg->warn_on_object_refname_ambiguity = save_warning;
 	if (prepare_revision_walk(&rev))
 		die(_("revision walk setup failed"));
 
-- 
2.53.0.155.g9f36b15afa
Christian CouderMar 10, 2026, 12:31 UTC in reply to Olamide Caleb Bello on lore

Re: [PATCH v1 0/8] repo_config_values: migrate more globals

On Tue, Mar 10, 2026 at 1:07 PM Olamide Caleb Bello <belkid98@gmail.com> wrote:
Show 10 quoted lines
>
> Base series
> ===========
> This series builds on top of the merged series:
>   [PATCH v7 0/3] Move repo-specific globals into repo_config_values
>
> available at:
>   https://lore.kernel.org/git/<cover.1771258573.git.belkid98@gmail.com>
>
> It should be applied on top of that series.

The above was interesting when the "Move repo-specific globals into repo_config_values" series wasn't merged to master. But now that it has been merged, you can remove it.

Thanks.
Tian YuchenMar 12, 2026, 05:03 UTC in reply to Olamide Caleb Bello on lore

Re: [PATCH v1 0/8] repo_config_values: migrate more globals

Hi Olamide,
On 3/10/26 20:06, Olamide Caleb Bello wrote:
Show 10 quoted lines
>   	int status = Z_OK;
>   	int write_object = (flags & INDEX_WRITE_OBJECT);
>   	off_t offset = 0;
> +	struct repo_config_values *cfg = repo_config_values(the_repository);
>   
> -	git_deflate_init(&s, pack_compression_level);
> +	git_deflate_init(&s, cfg->pack_compression_level);
>   
>   	hdrlen = encode_in_pack_object_header(obuf, sizeof(obuf), OBJ_BLOB, size);
>   	s.next_out = obuf + hdrlen;

I didn't look closely at the other parts, but I have a small question about this section.

pack_compression_level before this patch is a global variable:
	int pack_compression_level = Z_DEFAULT_COMPRESSION;
and struct option  in cmd_pack_objects contains its pointer:
struct option pack_objects_options[] = {
	...
	OPT_INTEGER(0, "compression", &pack_compression_level, ...),
	...
};

The reason why functions such as do_compress, write_large_blob_data can work properly is beacuse they all read the same global variable, right?

However, in this patch,
> +	struct repo_config_values *cfg = repo_config_values(the_repository);
> +	int pack_compression_level = cfg->pack_compression_level;

Here, a local variable with the same name was created via value assignment (I also find the naming a bit odd).

Show 9 quoted lines
> @@ -383,8 +383,9 @@ static unsigned long do_compress(void **pptr, unsigned long size)
>  	git_zstream stream;
>  	void *in, *out;
>  	unsigned long maxsize;
> +	struct repo_config_values *cfg = repo_config_values(the_repository);
>  
> -	git_deflate_init(&stream, pack_compression_level);
> +	git_deflate_init(&stream, cfg->pack_compression_level);
>  	maxsize = git_deflate_bound(&stream, size);

But then in the do_compress() function, the variable being read is still that pointer, cfg->pack_compression_level. The expected input wasn't *written back* to this pointer, right? If I understand correctly, after parsing CLI, the output is written to the local variable rather than the cfg. And that's why the naming is a bit confusing to me.

struct option pack_objects_options[] = {
	...
	OPT_INTEGER(0, "compression", &cfg->pack_compression_level, ...),
	...
};

I think change like this is needed. Of course, you'll need to double-check it. _(:3 」∠ )_

Regards,
Yuchen
Bello OlamideMar 12, 2026, 12:46 UTC in reply to Tian Yuchen on lore

Re: [PATCH v1 0/8] repo_config_values: migrate more globals

Hi Yuchen,
Thanks for taking a close look.

My intention here was mainly to avoid repeating `cfg->pack_compression_level` multiple times in the function, so I introduced a local `pack_compression_level` initialized from `cfg->pack_compression_level`.

But you are right to point out the interaction with the CLI option. The --compression option currently writes to the local variable via OPT_INTEGER, and the value is not propagated back to `cfg->pack_compression_level`.

I took a second look at it and will change the option to write directly into `cfg->pack_compression_level instead` in upcoming versions.

Thanks for pointing this out.

Best, Olamide

On Thu, 12 Mar 2026 at 06:03, Tian Yuchen <a3205153416@gmail.com> wrote:
Show 70 quoted lines
>
> Hi Olamide,
>
> On 3/10/26 20:06, Olamide Caleb Bello wrote:
> >       int status = Z_OK;
> >       int write_object = (flags & INDEX_WRITE_OBJECT);
> >       off_t offset = 0;
> > +     struct repo_config_values *cfg = repo_config_values(the_repository);
> >
> > -     git_deflate_init(&s, pack_compression_level);
> > +     git_deflate_init(&s, cfg->pack_compression_level);
> >
> >       hdrlen = encode_in_pack_object_header(obuf, sizeof(obuf), OBJ_BLOB, size);
> >       s.next_out = obuf + hdrlen;
>
> I didn't look closely at the other parts, but I have a small question
> about this section.
>
> pack_compression_level before this patch is a global variable:
>
>         int pack_compression_level = Z_DEFAULT_COMPRESSION;
>
> and struct option  in cmd_pack_objects contains its pointer:
>
> struct option pack_objects_options[] = {
>         ...
>         OPT_INTEGER(0, "compression", &pack_compression_level, ...),
>         ...
> };
>
> The reason why functions such as do_compress, write_large_blob_data can
> work properly is beacuse they all read the same global variable, right?
>
>
> However, in this patch,
>
> > +     struct repo_config_values *cfg = repo_config_values(the_repository);
> > +     int pack_compression_level = cfg->pack_compression_level;
>
> Here, a local variable with the same name was created via value
> assignment (I also find the naming a bit odd).
>
> > @@ -383,8 +383,9 @@ static unsigned long do_compress(void **pptr, unsigned long size)
> >       git_zstream stream;
> >       void *in, *out;
> >       unsigned long maxsize;
> > +     struct repo_config_values *cfg = repo_config_values(the_repository);
> >
> > -     git_deflate_init(&stream, pack_compression_level);
> > +     git_deflate_init(&stream, cfg->pack_compression_level);
> >       maxsize = git_deflate_bound(&stream, size);
>
> But then in the do_compress() function, the variable being read is still
> that pointer, cfg->pack_compression_level. The expected input wasn't
> *written back* to this pointer, right? If I understand correctly, after
> parsing CLI, the output is written to the local variable rather than the
> cfg. And that's why the naming is a bit confusing to me.
>
> struct option pack_objects_options[] = {
>         ...
>         OPT_INTEGER(0, "compression", &cfg->pack_compression_level, ...),
>         ...
> };
>
> I think change like this is needed. Of course, you'll need to
> double-check it. _(:3 」∠ )_
>
> Regards,
>
> Yuchen
Bello OlamideMar 12, 2026, 12:55 UTC in reply to Christian Couder on lore

Re: [PATCH v1 0/8] repo_config_values: migrate more globals

On Tue, 10 Mar 2026 at 13:31, Christian Couder <christian.couder@gmail.com> wrote:

Show 18 quoted lines
>
> On Tue, Mar 10, 2026 at 1:07 PM Olamide Caleb Bello <belkid98@gmail.com> wrote:
> >
> > Base series
> > ===========
> > This series builds on top of the merged series:
> >   [PATCH v7 0/3] Move repo-specific globals into repo_config_values
> >
> > available at:
> >   https://lore.kernel.org/git/<cover.1771258573.git.belkid98@gmail.com>
> >
> > It should be applied on top of that series.
>
> The above was interesting when the "Move repo-specific globals into
> repo_config_values" series wasn't merged to master. But now that it
> has been merged, you can remove it.
>
> Thanks.
Thank you, Christian.
I will remove it in subsequent versions
Bello OlamideMar 12, 2026, 13:18 UTC in reply to Tian Yuchen on lore

Re: [PATCH v1 0/8] repo_config_values: migrate more globals

On Thu, 12 Mar 2026 at 06:03, Tian Yuchen <a3205153416@gmail.com> wrote:
Show 70 quoted lines
>
> Hi Olamide,
>
> On 3/10/26 20:06, Olamide Caleb Bello wrote:
> >       int status = Z_OK;
> >       int write_object = (flags & INDEX_WRITE_OBJECT);
> >       off_t offset = 0;
> > +     struct repo_config_values *cfg = repo_config_values(the_repository);
> >
> > -     git_deflate_init(&s, pack_compression_level);
> > +     git_deflate_init(&s, cfg->pack_compression_level);
> >
> >       hdrlen = encode_in_pack_object_header(obuf, sizeof(obuf), OBJ_BLOB, size);
> >       s.next_out = obuf + hdrlen;
>
> I didn't look closely at the other parts, but I have a small question
> about this section.
>
> pack_compression_level before this patch is a global variable:
>
>         int pack_compression_level = Z_DEFAULT_COMPRESSION;
>
> and struct option  in cmd_pack_objects contains its pointer:
>
> struct option pack_objects_options[] = {
>         ...
>         OPT_INTEGER(0, "compression", &pack_compression_level, ...),
>         ...
> };
>
> The reason why functions such as do_compress, write_large_blob_data can
> work properly is beacuse they all read the same global variable, right?
>
>
> However, in this patch,
>
> > +     struct repo_config_values *cfg = repo_config_values(the_repository);
> > +     int pack_compression_level = cfg->pack_compression_level;
>
> Here, a local variable with the same name was created via value
> assignment (I also find the naming a bit odd).
>
> > @@ -383,8 +383,9 @@ static unsigned long do_compress(void **pptr, unsigned long size)
> >       git_zstream stream;
> >       void *in, *out;
> >       unsigned long maxsize;
> > +     struct repo_config_values *cfg = repo_config_values(the_repository);
> >
> > -     git_deflate_init(&stream, pack_compression_level);
> > +     git_deflate_init(&stream, cfg->pack_compression_level);
> >       maxsize = git_deflate_bound(&stream, size);
>
> But then in the do_compress() function, the variable being read is still
> that pointer, cfg->pack_compression_level. The expected input wasn't
> *written back* to this pointer, right? If I understand correctly, after
> parsing CLI, the output is written to the local variable rather than the
> cfg. And that's why the naming is a bit confusing to me.
>
> struct option pack_objects_options[] = {
>         ...
>         OPT_INTEGER(0, "compression", &cfg->pack_compression_level, ...),
>         ...
> };
>
> I think change like this is needed. Of course, you'll need to
> double-check it. _(:3 」∠ )_
>
> Regards,
>
> Yuchen
Hi Yuchen,
Thanks for taking a close look.

My intention here was mainly to avoid repeating `cfg->pack_compression_level` multiple times in the function, so I introduced a local `pack_compression_level` initialized from `cfg->pack_compression_level`.

But you are right to point out the interaction with the CLI option. The --compression option currently writes to the local variable via OPT_INTEGER, and the value is not propagated back to `cfg->pack_compression_level`.

I took a second look at it and will change the option to write directly into `cfg->pack_compression_level instead` in upcoming versions.

Thanks for pointing this out.

Best regards, Olamide Caleb Bello

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