[PATCH v2 2/8] sha1_file: keep track of alternate source of objects

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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
 builtin/index-pack.c |  2 +-
 cache.h              |  3 ++-
 fast-import.c        |  2 +-
 sha1_file.c          | 15 +++++++++------
 4 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index 79dfe47..aab9de5 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -1414,7 +1414,7 @@ static void read_v2_anomalous_offsets(struct packed_git *p,
 
 static void read_idx_option(struct pack_idx_option *opts, const char *pack_name)
 {
-	struct packed_git *p = add_packed_git(pack_name, strlen(pack_name), 1);
+	struct packed_git *p = add_packed_git(pack_name, strlen(pack_name), NULL);
 
 	if (!p)
 		die(_("Cannot open existing pack file '%s'"), pack_name);
diff --git a/cache.h b/cache.h
index bed403a..dfb78ca 100644
--- a/cache.h
+++ b/cache.h
@@ -1014,6 +1014,7 @@ struct pack_window {
 extern struct packed_git {
 	struct packed_git *next;
 	struct pack_window *windows;
+	struct alternate_object_database *alt;
 	off_t pack_size;
 	const void *index_data;
 	size_t index_size;
@@ -1107,7 +1108,7 @@ extern void close_pack_windows(struct packed_git *);
 extern void unuse_pack(struct pack_window **);
 extern void free_pack_by_name(const char *);
 extern void clear_delta_base_cache(void);
-extern struct packed_git *add_packed_git(const char *, int, int);
+extern struct packed_git *add_packed_git(const char *, int, struct alternate_object_database *);
 extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t);
 extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t);
 extern off_t find_pack_entry_one(const unsigned char *, struct packed_git *);
diff --git a/fast-import.c b/fast-import.c
index 8542786..749e9db 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -964,7 +964,7 @@ static void end_packfile(void)
 		idx_name = keep_pack(create_index());
 
 		/* Register the packfile with core git's machinery. */
-		new_p = add_packed_git(idx_name, strlen(idx_name), 1);
+		new_p = add_packed_git(idx_name, strlen(idx_name), NULL);
 		if (!new_p)
 			die("core git rejected index %s", idx_name);
 		all_packs[pack_id] = new_p;
diff --git a/sha1_file.c b/sha1_file.c
index d1f44c9..1a744ae 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -958,7 +958,8 @@ static void try_to_free_pack_memory(size_t size)
 	release_pack_memory(size, -1);
 }
 
-struct packed_git *add_packed_git(const char *path, int path_len, int local)
+struct packed_git *add_packed_git(const char *path, int path_len,
+				  struct alternate_object_database *alt)
 {
 	static int have_set_try_to_free_routine;
 	struct stat st;
@@ -994,7 +995,8 @@ struct packed_git *add_packed_git(const char *path, int path_len, int local)
 	 * actually mapping the pack file.
 	 */
 	p->pack_size = st.st_size;
-	p->pack_local = local;
+	p->pack_local = !alt;
+	p->alt = alt;
 	p->mtime = st.st_mtime;
 	if (path_len < 40 || get_sha1_hex(path + path_len - 40, p->sha1))
 		hashclr(p->sha1);
@@ -1082,7 +1084,8 @@ static void report_pack_garbage(struct string_list *list)
 	report_helper(list, seen_bits, first, list->nr);
 }
 
-static void prepare_packed_git_one(char *objdir, int local)
+static void prepare_packed_git_one(char *objdir,
+				   struct alternate_object_database *alt)
 {
 	/* Ensure that this buffer is large enough so that we can
 	   append "/pack/" without clobbering the stack even if
@@ -1133,7 +1136,7 @@ static void prepare_packed_git_one(char *objdir, int local)
 			     * See if it really is a valid .idx file with
 			     * corresponding .pack file that we can map.
 			     */
-			    (p = add_packed_git(path, len + namelen, local)) != NULL)
+			    (p = add_packed_git(path, len + namelen, alt)) != NULL)
 				install_packed_git(p);
 		}
 
@@ -1213,11 +1216,11 @@ void prepare_packed_git(void)
 
 	if (prepare_packed_git_run_once)
 		return;
-	prepare_packed_git_one(get_object_directory(), 1);
+	prepare_packed_git_one(get_object_directory(), NULL);
 	prepare_alt_odb();
 	for (alt = alt_odb_list; alt; alt = alt->next) {
 		alt->name[-1] = 0;
-		prepare_packed_git_one(alt->base, 0);
+		prepare_packed_git_one(alt->base, alt);
 		alt->name[-1] = '/';
 	}
 	rearrange_packed_git();
-- 
1.8.2.83.gc99314b

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