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From: Olamide Caleb Bello <belkid98@gmail•com>
To: git@vger•kernel.org
Cc: phillip.wood123@gmail•com, gitster@pobox•com,
	christian.couder@gmail•com, usmanakinyemi202@gmail•com,
	kaartic.sivaraam@gmail•com, me@ttaylorr•com,
	karthik.188@gmail•com, Olamide Caleb Bello <belkid98@gmail•com>
Subject: [PATCH v2 4/8] environment: move "pack_compression_level" into `struct repo_config_values`
Date: Tue, 24 Mar 2026 13:37:46 +0100	[thread overview]
Message-ID: <20260324123750.157143-5-belkid98@gmail.com> (raw)
In-Reply-To: <20260324123750.157143-1-belkid98@gmail.com>

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 | 17 ++++++++++-------
 environment.c          |  8 +++++---
 environment.h          |  2 +-
 object-file.c          |  3 ++-
 5 files changed, 23 insertions(+), 15 deletions(-)

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..7c5bc96916 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 +4870,7 @@ 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);
 
 	struct option pack_objects_options[] = {
 		OPT_CALLBACK_F('q', "quiet", &progress, NULL,
@@ -4951,7 +4954,7 @@ int cmd_pack_objects(int argc,
 			 N_("ignore packs that have companion .keep file")),
 		OPT_STRING_LIST(0, "keep-pack", &keep_pack_list, N_("name"),
 				N_("ignore this pack")),
-		OPT_INTEGER(0, "compression", &pack_compression_level,
+		OPT_INTEGER(0, "compression", &cfg->pack_compression_level,
 			    N_("pack compression level")),
 		OPT_BOOL(0, "keep-true-parents", &grafts_keep_true_parents,
 			 N_("do not hide commits by grafts")),
@@ -5110,10 +5113,10 @@ int cmd_pack_objects(int argc,
 
 	if (!reuse_object)
 		reuse_delta = 0;
-	if (pack_compression_level == -1)
-		pack_compression_level = Z_DEFAULT_COMPRESSION;
-	else if (pack_compression_level < 0 || pack_compression_level > Z_BEST_COMPRESSION)
-		die(_("bad pack compression level %d"), pack_compression_level);
+	if (cfg->pack_compression_level == -1)
+		cfg->pack_compression_level = Z_DEFAULT_COMPRESSION;
+	else if (cfg->pack_compression_level < 0 || cfg->pack_compression_level > Z_BEST_COMPRESSION)
+		die(_("bad pack compression level %d"), cfg->pack_compression_level);
 
 	if (!delta_search_threads)	/* --threads=0 means autodetect */
 		delta_search_threads = online_cpus();
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


  parent reply	other threads:[~2026-03-24 12:39 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-24 12:37 [PATCH v2 0/8] repo_config_values: migrate more globals Olamide Caleb Bello
2026-03-24 12:37 ` [PATCH v2 1/8] environment: move "trust_ctime" into `struct repo_config_values` Olamide Caleb Bello
2026-04-14  8:52   ` Karthik Nayak
2026-04-14  9:35     ` Phillip Wood
2026-04-14 17:15       ` Junio C Hamano
2026-04-15 11:16       ` Karthik Nayak
2026-04-15 15:49         ` Junio C Hamano
2026-04-15 19:09           ` Karthik Nayak
2026-03-24 12:37 ` [PATCH v2 2/8] environment: move "check_stat" " Olamide Caleb Bello
2026-04-14  8:55   ` Karthik Nayak
2026-03-24 12:37 ` [PATCH v2 3/8] environment: move `zlib_compression_level` into repo_config_values Olamide Caleb Bello
2026-04-14  8:58   ` Karthik Nayak
2026-04-14 14:32     ` Bello Olamide
2026-03-24 12:37 ` Olamide Caleb Bello [this message]
2026-03-24 12:37 ` [PATCH v2 5/8] environment: move "precomposed_unicode" into `struct repo_config_values` Olamide Caleb Bello
2026-04-14  9:07   ` Karthik Nayak
2026-03-24 12:37 ` [PATCH v2 6/8] env: move "core_sparse_checkout_cone" " Olamide Caleb Bello
2026-03-24 12:37 ` [PATCH v2 7/8] env: put "sparse_expect_files_outside_of_patterns" in `repo_config_values` Olamide Caleb Bello
2026-03-24 12:37 ` [PATCH v2 8/8] env: move "warn_on_object_refname_ambiguity" into `repo_config_values` Olamide Caleb Bello
2026-04-14  9:10 ` [PATCH v2 0/8] repo_config_values: migrate more globals Karthik Nayak
2026-04-14 14:26   ` Bello Olamide
2026-04-23 16:08   ` [PATCH v3 " Olamide Caleb Bello
2026-04-23 16:08     ` [PATCH v3 1/8] Revert "compat/posix: introduce writev(3p) wrapper" Olamide Caleb Bello
2026-04-23 16:08     ` [PATCH v3 2/8] rust: we are way beyond 2.53 Olamide Caleb Bello
2026-04-23 16:08     ` [PATCH v3 3/8] doc: am: revert Message-ID trailer claim Olamide Caleb Bello
2026-04-23 16:08     ` [PATCH v3 4/8] doc: am: correct to full --no-message-id Olamide Caleb Bello
2026-04-23 16:08     ` [PATCH v3 5/8] CI: bump actions/checkout from 4 to 5 for rust-analysis job Olamide Caleb Bello
2026-04-23 16:08     ` [PATCH v3 6/8] gitglossary: fix indentation of sub-lists Olamide Caleb Bello
2026-04-23 16:08     ` [PATCH v3 7/8] Hopefully the final tweak before -rc2 Olamide Caleb Bello
2026-04-23 16:08     ` [PATCH v3 8/8] Git 2.54-rc2 Olamide Caleb Bello
2026-04-23 16:37     ` [PATCH v3 0/8] repo_config_values: migrate more globals Bello Olamide
2026-06-01 15:42     ` [PATCH v4 " Olamide Caleb Bello
2026-06-01 15:42       ` [PATCH v4 1/8] environment: move "trust_ctime" into `struct repo_config_values` Olamide Caleb Bello
2026-06-01 15:42       ` [PATCH v4 2/8] environment: move "check_stat" " Olamide Caleb Bello
2026-06-01 15:42       ` [PATCH v4 3/8] environment: move `zlib_compression_level` " Olamide Caleb Bello
2026-06-02  0:07         ` Junio C Hamano
2026-06-02  8:12           ` Patrick Steinhardt
2026-06-02 10:08             ` Christian Couder
2026-06-02 10:26               ` Junio C Hamano
2026-06-01 15:42       ` [PATCH v4 4/8] environment: move "pack_compression_level" " Olamide Caleb Bello
2026-06-01 15:42       ` [PATCH v4 5/8] environment: move "precomposed_unicode" " Olamide Caleb Bello
2026-06-01 23:54         ` Junio C Hamano
2026-06-01 15:42       ` [PATCH v4 6/8] environment: move "core_sparse_checkout_cone" " Olamide Caleb Bello
2026-06-01 15:42       ` [PATCH v4 7/8] environment: move "sparse_expect_files_outside_of_patterns" into `repo_config_values` Olamide Caleb Bello
2026-06-01 15:42       ` [PATCH v4 8/8] environment: move "warn_on_object_refname_ambiguity" into `struct repo_config_values` Olamide Caleb Bello
2026-06-02  0:05         ` Junio C Hamano
2026-06-02 17:09       ` [PATCH v5 0/8] repo_config_values: migrate more globals variables Olamide Caleb Bello
2026-06-02 17:09         ` [PATCH v5 1/8] environment: move "trust_ctime" into `struct repo_config_values` Olamide Caleb Bello
2026-06-02 17:09         ` [PATCH v5 2/8] environment: move "check_stat" " Olamide Caleb Bello
2026-06-02 17:09         ` [PATCH v5 3/8] environment: move `zlib_compression_level` " Olamide Caleb Bello
2026-06-02 17:09         ` [PATCH v5 4/8] environment: move "pack_compression_level" " Olamide Caleb Bello
2026-06-02 17:09         ` [PATCH v5 5/8] environment: move "precomposed_unicode" " Olamide Caleb Bello
2026-06-02 17:09         ` [PATCH v5 6/8] environment: move "core_sparse_checkout_cone" " Olamide Caleb Bello
2026-06-02 17:09         ` [PATCH v5 7/8] environment: move "sparse_expect_files_outside_of_patterns" " Olamide Caleb Bello
2026-06-02 17:09         ` [PATCH v5 8/8] environment: move "warn_on_object_refname_ambiguity" " Olamide Caleb Bello
2026-04-23 16:54   ` [PATCH v3 0/8] environment: move core config globals into repo_config_values Olamide Caleb Bello
2026-04-23 16:54     ` [PATCH v3 1/8] environment: move "trust_ctime" into `struct repo_config_values` Olamide Caleb Bello
2026-05-21 16:37       ` Tian Yuchen
2026-06-01 14:01         ` Bello Olamide
2026-04-23 16:54     ` [PATCH v3 2/8] environment: move "check_stat" " Olamide Caleb Bello
2026-04-23 16:54     ` [PATCH v3 3/8] environment: move `zlib_compression_level` " Olamide Caleb Bello
2026-04-23 16:54     ` [PATCH v3 4/8] environment: move "pack_compression_level" " Olamide Caleb Bello
2026-04-23 16:54     ` [PATCH v3 5/8] environment: move "precomposed_unicode" " Olamide Caleb Bello
2026-05-15 17:15       ` Tian Yuchen
2026-04-23 16:54     ` [PATCH v3 6/8] env: move "core_sparse_checkout_cone" " Olamide Caleb Bello
2026-04-23 16:54     ` [PATCH v3 7/8] env: move "sparse_expect_files_outside_of_patterns" into `repo_config_values` Olamide Caleb Bello
2026-04-23 16:54     ` [PATCH v3 8/8] env: move "warn_on_object_refname_ambiguity" into `struct repo_config_values` Olamide Caleb Bello
2026-04-26  0:01     ` [PATCH v3 0/8] environment: move core config globals into repo_config_values Junio C Hamano
2026-04-26  0:31       ` Bello Olamide
2026-05-11  2:56         ` Junio C Hamano
2026-06-01 21:43           ` Junio C Hamano
2026-06-01 22:24             ` Junio C Hamano

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