#include "tag.h"
#include "tree.h"
#include "refs.h"
+#include "pack-revindex.h"
#ifndef O_NOATIME
#if defined(__linux__) && (defined(__i386__) || defined(__PPC__))
unsigned long dummy;
unsigned char *next_sha1;
enum object_type type;
+ struct revindex_entry *revidx;
*delta_chain_length = 0;
curpos = obj_offset;
type = unpack_object_header(p, &w_curs, &curpos, size);
+ revidx = find_pack_revindex(p, obj_offset);
+ *store_size = revidx[1].offset - obj_offset;
+
for (;;) {
switch (type) {
default:
case OBJ_TREE:
case OBJ_BLOB:
case OBJ_TAG:
- *store_size = 0; /* notyet */
unuse_pack(&w_curs);
return typename(type);
case OBJ_OFS_DELTA:
obj_offset = get_delta_base(p, &w_curs, &curpos, type, obj_offset);
if (*delta_chain_length == 0) {
- /* TODO: find base_sha1 as pointed by curpos */
- hashclr(base_sha1);
+ revidx = find_pack_revindex(p, obj_offset);
+ hashcpy(base_sha1, nth_packed_object_sha1(p, revidx->nr));
}
break;
case OBJ_REF_DELTA:
} *cached_objects;
static int cached_object_nr, cached_object_alloc;
+static struct cached_object empty_tree = {
+ /* empty tree sha1: 4b825dc642cb6eb9a060e54bf8d69288fbee4904 */
+ "\x4b\x82\x5d\xc6\x42\xcb\x6e\xb9\xa0\x60"
+ "\xe5\x4b\xf8\xd6\x92\x88\xfb\xee\x49\x04",
+ OBJ_TREE,
+ "",
+ 0
+};
+
static struct cached_object *find_cached_object(const unsigned char *sha1)
{
int i;
if (!hashcmp(co->sha1, sha1))
return co;
}
+ if (!hashcmp(sha1, empty_tree.sha1))
+ return &empty_tree;
return NULL;
}
}
ref_length = strlen(ref_type);
- if (memcmp(buffer, ref_type, ref_length) ||
+ if (ref_length + 40 > isize ||
+ memcmp(buffer, ref_type, ref_length) ||
get_sha1_hex((char *) buffer + ref_length, actual_sha1)) {
free(buffer);
return NULL;