return parse_sha1_header_extended(hdr, &oi, 0);
}
-static void *unpack_sha1_file(void *map, unsigned long mapsize, enum object_type *type, unsigned long *size, const unsigned char *sha1)
-{
- int ret;
- git_zstream stream;
- char hdr[8192];
-
- ret = unpack_sha1_header(&stream, map, mapsize, hdr, sizeof(hdr));
- if (ret < Z_OK || (*type = parse_sha1_header(hdr, size)) < 0)
- return NULL;
-
- return unpack_sha1_rest(&stream, hdr, *size, sha1);
-}
-
unsigned long get_size_from_delta(struct packed_git *p,
struct pack_window **w_curs,
off_t curpos)
if (!ent)
return unpack_entry(p, base_offset, type, base_size);
- *type = ent->type;
- *base_size = ent->size;
+ if (type)
+ *type = ent->type;
+ if (base_size)
+ *base_size = ent->size;
return xmemdupz(ent->data, ent->size);
}
* We always get the representation type, but only convert it to
* a "real" type later if the caller is interested.
*/
- type = unpack_object_header(p, &w_curs, &curpos, &size);
+ if (oi->contentp) {
+ *oi->contentp = cache_or_unpack_entry(p, obj_offset, oi->sizep,
+ &type);
+ if (!*oi->contentp)
+ type = OBJ_BAD;
+ } else {
+ type = unpack_object_header(p, &w_curs, &curpos, &size);
+ }
- if (oi->sizep) {
+ if (!oi->contentp && oi->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,
free(external_base);
}
- *final_type = type;
- *final_size = size;
+ if (final_type)
+ *final_type = type;
+ if (final_size)
+ *final_size = size;
unuse_pack(&w_curs);
git_zstream stream;
char hdr[32];
struct strbuf hdrbuf = STRBUF_INIT;
+ unsigned long size_scratch;
if (oi->delta_base_sha1)
hashclr(oi->delta_base_sha1);
* return value implicitly indicates whether the
* object even exists.
*/
- if (!oi->typep && !oi->typename && !oi->sizep) {
+ if (!oi->typep && !oi->typename && !oi->sizep && !oi->contentp) {
const char *path;
struct stat st;
if (stat_sha1_file(sha1, &st, &path) < 0)
map = map_sha1_file(sha1, &mapsize);
if (!map)
return -1;
+
+ if (!oi->sizep)
+ oi->sizep = &size_scratch;
+
if (oi->disk_sizep)
*oi->disk_sizep = mapsize;
if ((flags & OBJECT_INFO_ALLOW_UNKNOWN_TYPE)) {
sha1_to_hex(sha1));
} else if ((status = parse_sha1_header_extended(hdr, oi, flags)) < 0)
status = error("unable to parse %s header", sha1_to_hex(sha1));
- git_inflate_end(&stream);
+
+ if (status >= 0 && oi->contentp)
+ *oi->contentp = unpack_sha1_rest(&stream, hdr,
+ *oi->sizep, sha1);
+ else
+ git_inflate_end(&stream);
+
munmap(map, mapsize);
if (status && oi->typep)
*oi->typep = status;
+ if (oi->sizep == &size_scratch)
+ oi->sizep = NULL;
strbuf_release(&hdrbuf);
return (status < 0) ? status : 0;
}
int sha1_object_info_extended(const unsigned char *sha1, struct object_info *oi, unsigned flags)
{
- struct cached_object *co;
+ static struct object_info blank_oi = OBJECT_INFO_INIT;
struct pack_entry e;
int rtype;
const unsigned char *real = (flags & OBJECT_INFO_LOOKUP_REPLACE) ?
lookup_replace_object(sha1) :
sha1;
- co = find_cached_object(real);
- if (co) {
- if (oi->typep)
- *(oi->typep) = co->type;
- if (oi->sizep)
- *(oi->sizep) = co->size;
- if (oi->disk_sizep)
- *(oi->disk_sizep) = 0;
- if (oi->delta_base_sha1)
- hashclr(oi->delta_base_sha1);
- if (oi->typename)
- strbuf_addstr(oi->typename, typename(co->type));
- oi->whence = OI_CACHED;
- return 0;
+ if (!oi)
+ oi = &blank_oi;
+
+ if (!(flags & OBJECT_INFO_SKIP_CACHED)) {
+ struct cached_object *co = find_cached_object(real);
+ if (co) {
+ if (oi->typep)
+ *(oi->typep) = co->type;
+ if (oi->sizep)
+ *(oi->sizep) = co->size;
+ if (oi->disk_sizep)
+ *(oi->disk_sizep) = 0;
+ if (oi->delta_base_sha1)
+ hashclr(oi->delta_base_sha1);
+ if (oi->typename)
+ strbuf_addstr(oi->typename, typename(co->type));
+ if (oi->contentp)
+ *oi->contentp = xmemdupz(co->buf, co->size);
+ oi->whence = OI_CACHED;
+ return 0;
+ }
}
if (!find_pack_entry(real, &e)) {
}
/* Not a loose object; someone else may have just packed it. */
- reprepare_packed_git();
- if (!find_pack_entry(real, &e))
+ if (flags & OBJECT_INFO_QUICK) {
return -1;
+ } else {
+ reprepare_packed_git();
+ if (!find_pack_entry(real, &e))
+ return -1;
+ }
}
+ if (oi == &blank_oi)
+ /*
+ * We know that the caller doesn't actually need the
+ * information below, so return early.
+ */
+ return 0;
+
rtype = packed_object_info(e.p, e.offset, oi);
if (rtype < 0) {
mark_bad_packed_object(e.p, real);
static void *read_object(const unsigned char *sha1, enum object_type *type,
unsigned long *size)
{
- unsigned long mapsize;
- void *map, *buf;
- struct cached_object *co;
-
- co = find_cached_object(sha1);
- if (co) {
- *type = co->type;
- *size = co->size;
- return xmemdupz(co->buf, co->size);
- }
+ struct object_info oi = OBJECT_INFO_INIT;
+ void *content;
+ oi.typep = type;
+ oi.sizep = size;
+ oi.contentp = &content;
- buf = read_packed_sha1(sha1, type, size);
- if (buf)
- return buf;
- map = map_sha1_file(sha1, &mapsize);
- if (map) {
- buf = unpack_sha1_file(map, mapsize, type, size, sha1);
- munmap(map, mapsize);
- return buf;
- }
- reprepare_packed_git();
- return read_packed_sha1(sha1, type, size);
+ if (sha1_object_info_extended(sha1, &oi, 0) < 0)
+ return NULL;
+ return content;
}
/*