diff options
| -rw-r--r-- | sha1_file.c | 93 |
1 files changed, 53 insertions, 40 deletions
diff --git a/sha1_file.c b/sha1_file.c index 285337819e..8fb10e451c 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -1710,52 +1710,21 @@ static int retry_bad_packed_offset(struct packed_git *p, off_t obj_offset) return type; } - #define POI_STACK_PREALLOC 64 -static int packed_object_info(struct packed_git *p, off_t obj_offset, - unsigned long *sizep, int *rtype, - unsigned long *disk_sizep) +static enum object_type packed_to_object_type(struct packed_git *p, + off_t obj_offset, + enum object_type type, + struct pack_window **w_curs, + off_t curpos) { - struct pack_window *w_curs = NULL; - unsigned long size; - off_t curpos = obj_offset; - enum object_type type; off_t small_poi_stack[POI_STACK_PREALLOC]; off_t *poi_stack = small_poi_stack; int poi_stack_nr = 0, poi_stack_alloc = POI_STACK_PREALLOC; - type = unpack_object_header(p, &w_curs, &curpos, &size); - - if (rtype) - *rtype = type; /* representation type */ - - if (sizep) { - if (type == OBJ_OFS_DELTA || type == OBJ_REF_DELTA) { - off_t tmp_pos = curpos; - off_t base_offset = get_delta_base(p, &w_curs, &tmp_pos, - type, obj_offset); - if (!base_offset) { - type = OBJ_BAD; - goto out; - } - *sizep = get_size_from_delta(p, &w_curs, tmp_pos); - if (*sizep == 0) { - type = OBJ_BAD; - goto out; - } - } else { - *sizep = size; - } - } - - if (disk_sizep) { - struct revindex_entry *revidx = find_pack_revindex(p, obj_offset); - *disk_sizep = revidx[1].offset - obj_offset; - } - while (type == OBJ_OFS_DELTA || type == OBJ_REF_DELTA) { off_t base_offset; + unsigned long size; /* Push the object we're going to leave behind */ if (poi_stack_nr >= poi_stack_alloc && poi_stack == small_poi_stack) { poi_stack_alloc = alloc_nr(poi_stack_nr); @@ -1766,11 +1735,11 @@ static int packed_object_info(struct packed_git *p, off_t obj_offset, } poi_stack[poi_stack_nr++] = obj_offset; /* If parsing the base offset fails, just unwind */ - base_offset = get_delta_base(p, &w_curs, &curpos, type, obj_offset); + base_offset = get_delta_base(p, w_curs, &curpos, type, obj_offset); if (!base_offset) goto unwind; curpos = obj_offset = base_offset; - type = unpack_object_header(p, &w_curs, &curpos, &size); + type = unpack_object_header(p, w_curs, &curpos, &size); if (type <= OBJ_NONE) { /* If getting the base itself fails, we first * retry the base, otherwise unwind */ @@ -1797,7 +1766,6 @@ static int packed_object_info(struct packed_git *p, off_t obj_offset, out: if (poi_stack != small_poi_stack) free(poi_stack); - unuse_pack(&w_curs); return type; unwind: @@ -1811,6 +1779,51 @@ unwind: goto out; } +static int packed_object_info(struct packed_git *p, off_t obj_offset, + unsigned long *sizep, int *rtype, + unsigned long *disk_sizep) +{ + struct pack_window *w_curs = NULL; + unsigned long size; + off_t curpos = obj_offset; + enum object_type type; + + type = unpack_object_header(p, &w_curs, &curpos, &size); + + if (rtype) + *rtype = type; /* representation type */ + + if (sizep) { + if (type == OBJ_OFS_DELTA || type == OBJ_REF_DELTA) { + off_t tmp_pos = curpos; + off_t base_offset = get_delta_base(p, &w_curs, &tmp_pos, + type, obj_offset); + if (!base_offset) { + type = OBJ_BAD; + goto out; + } + *sizep = get_size_from_delta(p, &w_curs, tmp_pos); + if (*sizep == 0) { + type = OBJ_BAD; + goto out; + } + } else { + *sizep = size; + } + } + + if (disk_sizep) { + struct revindex_entry *revidx = find_pack_revindex(p, obj_offset); + *disk_sizep = revidx[1].offset - obj_offset; + } + + type = packed_to_object_type(p, obj_offset, type, &w_curs, curpos); + +out: + unuse_pack(&w_curs); + return type; +} + static void *unpack_compressed_entry(struct packed_git *p, struct pack_window **w_curs, off_t curpos, |