has_sha1_pack(): refactor "pretend these packs do not exist" interface

Most of the callers of this function except only one pass NULL to its last
parameter, ignore_packed.

Introduce has_sha1_kept_pack() function that has the function signature
and the semantics of this function, and convert the sole caller that does
not pass NULL to call this new function.

All other callers and has_sha1_pack() lose the ignore_packed parameter.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

7 files changed, 33 insertions, 13 deletions

diff --git a/builtin-count-objects.c b/builtin-count-objects.c
index 91b548747..c095e8dd2 100644
--- a/builtin-count-objects.c
+++ b/builtin-count-objects.c
@@ -61,7 +61,7 @@ static void count_objects(DIR *d, char *path, int len, int verbose,
 		hex[40] = 0;
 		if (get_sha1_hex(hex, sha1))
 			die("internal error");
-		if (has_sha1_pack(sha1, NULL))
+		if (has_sha1_pack(sha1))
 			(*packed_loose)++;
 	}
 }
diff --git a/builtin-fsck.c b/builtin-fsck.c
index 30971ce0a..491375dc5 100644
--- a/builtin-fsck.c
+++ b/builtin-fsck.c
@@ -158,7 +158,7 @@ static void check_reachable_object(struct object *obj)
 	 * do a full fsck
 	 */
 	if (!obj->parsed) {
-		if (has_sha1_pack(obj->sha1, NULL))
+		if (has_sha1_pack(obj->sha1))
 			return; /* it is in pack - forget about it */
 		printf("missing %s %s\n", typename(obj->type), sha1_to_hex(obj->sha1));
 		errors_found |= ERROR_REACHABLE;
diff --git a/builtin-prune-packed.c b/builtin-prune-packed.c
index 10cb8df84..2d5b2cd35 100644
--- a/builtin-prune-packed.c
+++ b/builtin-prune-packed.c
@@ -23,7 +23,7 @@ static void prune_dir(int i, DIR *dir, char *pathname, int len, int opts)
 		memcpy(hex+2, de->d_name, 38);
 		if (get_sha1_hex(hex, sha1))
 			continue;
-		if (!has_sha1_pack(sha1, NULL))
+		if (!has_sha1_pack(sha1))
 			continue;
 		memcpy(pathname + len, de->d_name, 38);
 		if (opts & DRY_RUN)
diff --git a/cache.h b/cache.h
index 42f2f2754..c1539bf89 100644
--- a/cache.h
+++ b/cache.h
@@ -565,7 +565,8 @@ extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned l
 
 extern int move_temp_to_file(const char *tmpfile, const char *filename);
 
-extern int has_sha1_pack(const unsigned char *sha1, const char **ignore);
+extern int has_sha1_pack(const unsigned char *sha1);
+extern int has_sha1_kept_pack(const unsigned char *sha1, const char **ignore);
 extern int has_sha1_file(const unsigned char *sha1);
 extern int has_loose_object_nonlocal(const unsigned char *sha1);
 
diff --git a/diff.c b/diff.c
index f91f256c5..a34d26c23 100644
--- a/diff.c
+++ b/diff.c
@@ -1743,7 +1743,7 @@ static int reuse_worktree_file(const char *name, const unsigned char *sha1, int
 	 * objects however would tend to be slower as they need
 	 * to be individually opened and inflated.
 	 */
-	if (!FAST_WORKING_DIRECTORY && !want_file && has_sha1_pack(sha1, NULL))
+	if (!FAST_WORKING_DIRECTORY && !want_file && has_sha1_pack(sha1))
 		return 0;
 
 	len = strlen(name);
diff --git a/revision.c b/revision.c
index 45fd7a366..746eeed97 100644
--- a/revision.c
+++ b/revision.c
@@ -1485,7 +1485,8 @@ enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit)
 {
 	if (commit->object.flags & SHOWN)
 		return commit_ignore;
-	if (revs->unpacked && has_sha1_pack(commit->object.sha1, revs->ignore_packed))
+	if (revs->unpacked &&
+	    has_sha1_kept_pack(commit->object.sha1, revs->ignore_packed))
 		return commit_ignore;
 	if (revs->show_all)
 		return commit_show;
diff --git a/sha1_file.c b/sha1_file.c
index 88035a0cd..ac4375d29 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -1874,7 +1874,8 @@ int matches_pack_name(struct packed_git *p, const char *name)
 	return 0;
 }
 
-static int find_pack_entry(const unsigned char *sha1, struct pack_entry *e, const char **ignore_packed)
+static int find_pack_ent(const unsigned char *sha1, struct pack_entry *e,
+			 const char **ignore_packed)
 {
 	static struct packed_git *last_found = (void *)1;
 	struct packed_git *p;
@@ -1934,6 +1935,17 @@ static int find_pack_entry(const unsigned char *sha1, struct pack_entry *e, cons
 	return 0;
 }
 
+static int find_pack_entry(const unsigned char *sha1, struct pack_entry *e)
+{
+	return find_pack_ent(sha1, e, NULL);
+}
+
+static int find_kept_pack_entry(const unsigned char *sha1, struct pack_entry *e,
+				const char **ignore_packed)
+{
+	return find_pack_ent(sha1, e, ignore_packed);
+}
+
 struct packed_git *find_sha1_pack(const unsigned char *sha1,
 				  struct packed_git *packs)
 {
@@ -1975,7 +1987,7 @@ int sha1_object_info(const unsigned char *sha1, unsigned long *sizep)
 	struct pack_entry e;
 	int status;
 
-	if (!find_pack_entry(sha1, &e, NULL)) {
+	if (!find_pack_entry(sha1, &e)) {
 		/* Most likely it's a loose object. */
 		status = sha1_loose_object_info(sha1, sizep);
 		if (status >= 0)
@@ -1983,7 +1995,7 @@ int sha1_object_info(const unsigned char *sha1, unsigned long *sizep)
 
 		/* Not a loose object; someone else may have just packed it. */
 		reprepare_packed_git();
-		if (!find_pack_entry(sha1, &e, NULL))
+		if (!find_pack_entry(sha1, &e))
 			return status;
 	}
 	return packed_object_info(e.p, e.offset, sizep);
@@ -1995,7 +2007,7 @@ static void *read_packed_sha1(const unsigned char *sha1,
 	struct pack_entry e;
 	void *data;
 
-	if (!find_pack_entry(sha1, &e, NULL))
+	if (!find_pack_entry(sha1, &e))
 		return NULL;
 	data = cache_or_unpack_entry(e.p, e.offset, size, type, 1);
 	if (!data) {
@@ -2395,17 +2407,23 @@ int has_pack_file(const unsigned char *sha1)
 	return 1;
 }
 
-int has_sha1_pack(const unsigned char *sha1, const char **ignore_packed)
+int has_sha1_pack(const unsigned char *sha1)
+{
+	struct pack_entry e;
+	return find_pack_entry(sha1, &e);
+}
+
+int has_sha1_kept_pack(const unsigned char *sha1, const char **ignore_packed)
 {
 	struct pack_entry e;
-	return find_pack_entry(sha1, &e, ignore_packed);
+	return find_kept_pack_entry(sha1, &e, ignore_packed);
 }
 
 int has_sha1_file(const unsigned char *sha1)
 {
 	struct pack_entry e;
 
-	if (find_pack_entry(sha1, &e, NULL))
+	if (find_pack_entry(sha1, &e))
 		return 1;
 	return has_loose_object(sha1);
 }