sha1-file: use loose object cache for quick existence check

diff --git a/sha1-file.c b/sha1-file.c
index 4aae716a37fe3a4c0dc9060158fe37e02b65fddd..e53da0b7013bc281f398565ddcc78bbc9a291319 100644 (file)
--- a/sha1-file.c
+++ b/sha1-file.c
@@ -921,6 +921,24 @@ static int open_sha1_file(struct repository *r,
        return -1;
 }
 
+static int quick_has_loose(struct repository *r,
+                          const unsigned char *sha1)
+{
+       int subdir_nr = sha1[0];
+       struct object_id oid;
+       struct object_directory *odb;
+
+       hashcpy(oid.hash, sha1);
+
+       prepare_alt_odb(r);
+       for (odb = r->objects->odb; odb; odb = odb->next) {
+               odb_load_loose_cache(odb, subdir_nr);
+               if (oid_array_lookup(&odb->loose_objects_cache, &oid) >= 0)
+                       return 1;
+       }
+       return 0;
+}
+
 /*
  * Map the loose object at "path" if it is not NULL, or the path found by
  * searching for a loose object named "sha1".
@@ -1171,6 +1189,8 @@ static int sha1_loose_object_info(struct repository *r,
        if (!oi->typep && !oi->type_name && !oi->sizep && !oi->contentp) {
                const char *path;
                struct stat st;
+               if (!oi->disk_sizep && (flags & OBJECT_INFO_QUICK))
+                       return quick_has_loose(r, sha1) ? 0 : -1;
                if (stat_sha1_file(r, sha1, &st, &path) < 0)
                        return -1;
                if (oi->disk_sizep)