packfile: add repository argument to find_pack_entry

While at it move the documentation to the header and mention which pack
files are searched.

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

packfile.c

@@ -1845,11 +1845,7 @@ static int fill_pack_entry(const unsigned char *sha1,
 	return 1;
 }
 
-/*
- * Iff a pack file contains the object named by sha1, return true and
- * store its location to e.
- */
-int find_pack_entry(const unsigned char *sha1, struct pack_entry *e)
+int find_pack_entry_the_repository(const unsigned char *sha1, struct pack_entry *e)
 {
 	struct list_head *pos;
 
@@ -1871,7 +1867,7 @@ int find_pack_entry(const unsigned char *sha1, struct pack_entry *e)
 int has_sha1_pack(const unsigned char *sha1)
 {
 	struct pack_entry e;
-	return find_pack_entry(sha1, &e);
+	return find_pack_entry(the_repository, sha1, &e);
 }
 
 int has_pack_index(const unsigned char *sha1)

packfile.h

@@ -123,7 +123,12 @@ extern int packed_object_info(struct packed_git *pack, off_t offset, struct obje
 extern void mark_bad_packed_object(struct packed_git *p, const unsigned char *sha1);
 extern const struct packed_git *has_packed_and_bad(const unsigned char *sha1);
 
-extern int find_pack_entry(const unsigned char *sha1, struct pack_entry *e);
+/*
+ * Iff a pack file in the given repository contains the object named by sha1,
+ * return true and store its location to e.
+ */
+#define find_pack_entry(r, s, e) find_pack_entry_##r(s, e)
+extern int find_pack_entry_the_repository(const unsigned char *sha1, struct pack_entry *e);
 
 extern int has_sha1_pack(const unsigned char *sha1);
 

sha1_file.c

@@ -1266,7 +1266,7 @@ int sha1_object_info_extended(const unsigned char *sha1, struct object_info *oi,
 	}
 
 	while (1) {
-		if (find_pack_entry(real, &e))
+		if (find_pack_entry(the_repository, real, &e))
 			break;
 
 		/* Most likely it's a loose object. */
@@ -1275,7 +1275,7 @@ int sha1_object_info_extended(const unsigned char *sha1, struct object_info *oi,
 
 		/* Not a loose object; someone else may have just packed it. */
 		reprepare_packed_git(the_repository);
-		if (find_pack_entry(real, &e))
+		if (find_pack_entry(the_repository, real, &e))
 			break;
 
 		/* Check if it is a missing object */
@@ -1655,7 +1655,7 @@ static int freshen_loose_object(const unsigned char *sha1)
 static int freshen_packed_object(const unsigned char *sha1)
 {
 	struct pack_entry e;
-	if (!find_pack_entry(sha1, &e))
+	if (!find_pack_entry(the_repository, sha1, &e))
 		return 0;
 	if (e.p->freshened)
 		return 1;