pack-bitmap: convert khash_sha1 maps into kh_oid_map

All of the users of our khash_sha1 maps actually have a "struct
object_id". Let's use the more descriptive type.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

pack-bitmap-write.c

@@ -28,8 +28,8 @@ struct bitmap_writer {
 	struct ewah_bitmap *blobs;
 	struct ewah_bitmap *tags;
 
-	khash_sha1 *bitmaps;
-	khash_sha1 *reused;
+	kh_oid_map_t *bitmaps;
+	kh_oid_map_t *reused;
 	struct packing_data *to_pack;
 
 	struct bitmapped_commit *selected;
@@ -175,7 +175,7 @@ add_to_include_set(struct bitmap *base, struct commit *commit)
 	if (bitmap_get(base, bitmap_pos))
 		return 0;
 
-	hash_pos = kh_get_sha1(writer.bitmaps, commit->object.oid.hash);
+	hash_pos = kh_get_oid_map(writer.bitmaps, commit->object.oid);
 	if (hash_pos < kh_end(writer.bitmaps)) {
 		struct bitmapped_commit *bc = kh_value(writer.bitmaps, hash_pos);
 		bitmap_or_ewah(base, bc->bitmap);
@@ -256,7 +256,7 @@ void bitmap_writer_build(struct packing_data *to_pack)
 	struct bitmap *base = bitmap_new();
 	struct rev_info revs;
 
-	writer.bitmaps = kh_init_sha1();
+	writer.bitmaps = kh_init_oid_map();
 	writer.to_pack = to_pack;
 
 	if (writer.show_progress)
@@ -311,7 +311,7 @@ void bitmap_writer_build(struct packing_data *to_pack)
 		if (i >= reuse_after)
 			stored->flags |= BITMAP_FLAG_REUSE;
 
-		hash_pos = kh_put_sha1(writer.bitmaps, object->oid.hash, &hash_ret);
+		hash_pos = kh_put_oid_map(writer.bitmaps, object->oid, &hash_ret);
 		if (hash_ret == 0)
 			die("Duplicate entry when writing index: %s",
 			    oid_to_hex(&object->oid));
@@ -366,7 +366,7 @@ void bitmap_writer_reuse_bitmaps(struct packing_data *to_pack)
 	if (!(bitmap_git = prepare_bitmap_git(to_pack->repo)))
 		return;
 
-	writer.reused = kh_init_sha1();
+	writer.reused = kh_init_oid_map();
 	rebuild_existing_bitmaps(bitmap_git, to_pack, writer.reused,
 				 writer.show_progress);
 	/*
@@ -382,7 +382,7 @@ static struct ewah_bitmap *find_reused_bitmap(const struct object_id *oid)
 	if (!writer.reused)
 		return NULL;
 
-	hash_pos = kh_get_sha1(writer.reused, oid->hash);
+	hash_pos = kh_get_oid_map(writer.reused, *oid);
 	if (hash_pos >= kh_end(writer.reused))
 		return NULL;
 

pack-bitmap.c

@@ -1041,7 +1041,7 @@ static int rebuild_bitmap(uint32_t *reposition,
 
 int rebuild_existing_bitmaps(struct bitmap_index *bitmap_git,
 			     struct packing_data *mapping,
-			     khash_sha1 *reused_bitmaps,
+			     kh_oid_map_t *reused_bitmaps,
 			     int show_progress)
 {
 	uint32_t i, num_objects;
@@ -1080,9 +1080,9 @@ int rebuild_existing_bitmaps(struct bitmap_index *bitmap_git,
 			if (!rebuild_bitmap(reposition,
 					    lookup_stored_bitmap(stored),
 					    rebuild)) {
-				hash_pos = kh_put_sha1(reused_bitmaps,
-						       stored->oid.hash,
-						       &hash_ret);
+				hash_pos = kh_put_oid_map(reused_bitmaps,
+							  stored->oid,
+							  &hash_ret);
 				kh_value(reused_bitmaps, hash_pos) =
 					bitmap_to_ewah(rebuild);
 			}

pack-bitmap.h

@@ -51,7 +51,7 @@ int reuse_partial_packfile_from_bitmap(struct bitmap_index *,
 				       struct packed_git **packfile,
 				       uint32_t *entries, off_t *up_to);
 int rebuild_existing_bitmaps(struct bitmap_index *, struct packing_data *mapping,
-			     khash_sha1 *reused_bitmaps, int show_progress);
+			     kh_oid_map_t *reused_bitmaps, int show_progress);
 void free_bitmap_index(struct bitmap_index *);
 
 /*