object-store: move packed_git and packed_git_mru to object store

In a process with multiple repositories open, packfile accessors
should be associated to a single repository and not shared globally.
Move packed_git and packed_git_mru into the_repository and adjust
callers to reflect this.

[nd: while at there, wrap access to these two fields in get_packed_git()
and get_packed_git_mru(). This allows us to lazily initialize these
fields without caller doing that explicitly]

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 12 insertions, 9 deletions

diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index 83dcbc9773..223f2d9fc0 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -1,5 +1,6 @@
 #include "builtin.h"
 #include "cache.h"
+#include "repository.h"
 #include "config.h"
 #include "attr.h"
 #include "object.h"
@@ -28,6 +29,7 @@
 #include "argv-array.h"
 #include "list.h"
 #include "packfile.h"
+#include "object-store.h"
 
 static const char *pack_usage[] = {
 	N_("git pack-objects --stdout [<options>...] [< <ref-list> | < <object-list>]"),
@@ -1025,8 +1027,7 @@ static int want_object_in_pack(const struct object_id *oid,
 		if (want != -1)
 			return want;
 	}
-
-	list_for_each(pos, &packed_git_mru) {
+	list_for_each(pos, get_packed_git_mru(the_repository)) {
 		struct packed_git *p = list_entry(pos, struct packed_git, mru);
 		off_t offset;
 
@@ -1044,7 +1045,8 @@ static int want_object_in_pack(const struct object_id *oid,
 			}
 			want = want_found_object(exclude, p);
 			if (!exclude && want > 0)
-				list_move(&p->mru, &packed_git_mru);
+				list_move(&p->mru,
+					  get_packed_git_mru(the_repository));
 			if (want != -1)
 				return want;
 		}
@@ -2673,7 +2675,7 @@ static void add_objects_in_unpacked_packs(struct rev_info *revs)
 
 	memset(&in_pack, 0, sizeof(in_pack));
 
-	for (p = packed_git; p; p = p->next) {
+	for (p = get_packed_git(the_repository); p; p = p->next) {
 		struct object_id oid;
 		struct object *o;
 
@@ -2736,7 +2738,8 @@ static int has_sha1_pack_kept_or_nonlocal(const struct object_id *oid)
 	static struct packed_git *last_found = (void *)1;
 	struct packed_git *p;
 
-	p = (last_found != (void *)1) ? last_found : packed_git;
+	p = (last_found != (void *)1) ? last_found :
+					get_packed_git(the_repository);
 
 	while (p) {
 		if ((!p->pack_local || p->pack_keep) &&
@@ -2745,7 +2748,7 @@ static int has_sha1_pack_kept_or_nonlocal(const struct object_id *oid)
 			return 1;
 		}
 		if (p == last_found)
-			p = packed_git;
+			p = get_packed_git(the_repository);
 		else
 			p = p->next;
 		if (p == last_found)
@@ -2781,7 +2784,7 @@ static void loosen_unused_packed_objects(struct rev_info *revs)
 	uint32_t i;
 	struct object_id oid;
 
-	for (p = packed_git; p; p = p->next) {
+	for (p = get_packed_git(the_repository); p; p = p->next) {
 		if (!p->pack_local || p->pack_keep)
 			continue;
 
@@ -3152,7 +3155,7 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
 	prepare_packed_git();
 	if (ignore_packed_keep) {
 		struct packed_git *p;
-		for (p = packed_git; p; p = p->next)
+		for (p = get_packed_git(the_repository); p; p = p->next)
 			if (p->pack_local && p->pack_keep)
 				break;
 		if (!p) /* no keep-able packs found */
@@ -3165,7 +3168,7 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
 		 * also covers non-local objects
 		 */
 		struct packed_git *p;
-		for (p = packed_git; p; p = p->next) {
+		for (p = get_packed_git(the_repository); p; p = p->next) {
 			if (!p->pack_local) {
 				have_non_local_packs = 1;
 				break;