1 files changed, 64 insertions, 33 deletions

diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index c4c2a3c79..19668d351 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -944,13 +944,48 @@ static int have_duplicate_entry(const unsigned char *sha1,
 	return 1;
 }
 
+static int want_found_object(int exclude, struct packed_git *p)
+{
+	if (exclude)
+		return 1;
+	if (incremental)
+		return 0;
+
+	/*
+	 * When asked to do --local (do not include an object that appears in a
+	 * pack we borrow from elsewhere) or --honor-pack-keep (do not include
+	 * an object that appears in a pack marked with .keep), finding a pack
+	 * that matches the criteria is sufficient for us to decide to omit it.
+	 * However, even if this pack does not satisfy the criteria, we need to
+	 * make sure no copy of this object appears in _any_ pack that makes us
+	 * to omit the object, so we need to check all the packs.
+	 *
+	 * We can however first check whether these options can possible matter;
+	 * if they do not matter we know we want the object in generated pack.
+	 * Otherwise, we signal "-1" at the end to tell the caller that we do
+	 * not know either way, and it needs to check more packs.
+	 */
+	if (!ignore_packed_keep &&
+	    (!local || !have_non_local_packs))
+		return 1;
+
+	if (local && !p->pack_local)
+		return 0;
+	if (ignore_packed_keep && p->pack_local && p->pack_keep)
+		return 0;
+
+	/* we don't know yet; keep looking for more packs */
+	return -1;
+}
+
 /*
  * Check whether we want the object in the pack (e.g., we do not want
  * objects found in non-local stores if the "--local" option was used).
  *
- * As a side effect of this check, we will find the packed version of this
- * object, if any. We therefore pass out the pack information to avoid having
- * to look it up again later.
+ * If the caller already knows an existing pack it wants to take the object
+ * from, that is passed in *found_pack and *found_offset; otherwise this
+ * function finds if there is any pack that has the object and returns the pack
+ * and its offset in these variables.
  */
 static int want_object_in_pack(const unsigned char *sha1,
 			       int exclude,
@@ -958,15 +993,30 @@ static int want_object_in_pack(const unsigned char *sha1,
 			       off_t *found_offset)
 {
 	struct packed_git *p;
+	int want;
 
 	if (!exclude && local && has_loose_object_nonlocal(sha1))
 		return 0;
 
-	*found_pack = NULL;
-	*found_offset = 0;
+	/*
+	 * If we already know the pack object lives in, start checks from that
+	 * pack - in the usual case when neither --local was given nor .keep files
+	 * are present we will determine the answer right now.
+	 */
+	if (*found_pack) {
+		want = want_found_object(exclude, *found_pack);
+		if (want != -1)
+			return want;
+	}
 
 	for (p = packed_git; p; p = p->next) {
-		off_t offset = find_pack_entry_one(sha1, p);
+		off_t offset;
+
+		if (p == *found_pack)
+			offset = *found_offset;
+		else
+			offset = find_pack_entry_one(sha1, p);
+
 		if (offset) {
 			if (!*found_pack) {
 				if (!is_pack_valid(p))
@@ -974,31 +1024,9 @@ static int want_object_in_pack(const unsigned char *sha1,
 				*found_offset = offset;
 				*found_pack = p;
 			}
-			if (exclude)
-				return 1;
-			if (incremental)
-				return 0;
-
-			/*
-			 * When asked to do --local (do not include an
-			 * object that appears in a pack we borrow
-			 * from elsewhere) or --honor-pack-keep (do not
-			 * include an object that appears in a pack marked
-			 * with .keep), we need to make sure no copy of this
-			 * object come from in _any_ pack that causes us to
-			 * omit it, and need to complete this loop.  When
-			 * neither option is in effect, we know the object
-			 * we just found is going to be packed, so break
-			 * out of the loop to return 1 now.
-			 */
-			if (!ignore_packed_keep &&
-			    (!local || !have_non_local_packs))
-				break;
-
-			if (local && !p->pack_local)
-				return 0;
-			if (ignore_packed_keep && p->pack_local && p->pack_keep)
-				return 0;
+			want = want_found_object(exclude, p);
+			if (want != -1)
+				return want;
 		}
 	}
 
@@ -1039,8 +1067,8 @@ static const char no_closure_warning[] = N_(
 static int add_object_entry(const unsigned char *sha1, enum object_type type,
 			    const char *name, int exclude)
 {
-	struct packed_git *found_pack;
-	off_t found_offset;
+	struct packed_git *found_pack = NULL;
+	off_t found_offset = 0;
 	uint32_t index_pos;
 
 	if (have_duplicate_entry(sha1, exclude, &index_pos))
@@ -1073,6 +1101,9 @@ static int add_object_entry_from_bitmap(const unsigned char *sha1,
 	if (have_duplicate_entry(sha1, 0, &index_pos))
 		return 0;
 
+	if (!want_object_in_pack(sha1, 0, &pack, &offset))
+		return 0;
+
 	create_object_entry(sha1, type, name_hash, 0, 0, index_pos, pack, offset);
 
 	display_progress(progress_state, nr_result);