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sha1_object_info_extended: pass object_info to helpers 

We take in a "struct object_info" which contains pointers to
storage for items the caller cares about. But then rather
than pass the whole object to the low-level loose/packed
helper functions, we pass the individual pointers.

Let's pass the whole struct instead, which will make adding
more items later easier.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2013-07-12 02:37:53 -04:00 committed by Junio C Hamano
parent 5b0864070e
commit 23c339c0f2
1 changed files with 22 additions and 27 deletions
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49
sha1_file.c
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@ -1780,8 +1780,7 @@ static enum object_type packed_to_object_type(struct packed_git *p,
}
static int packed_object_info(struct packed_git *p, off_t obj_offset,
enum object_type *typep, unsigned long *sizep,
unsigned long *disk_sizep)
struct object_info *oi)
{
struct pack_window *w_curs = NULL;
unsigned long size;
@ -1794,7 +1793,7 @@ static int packed_object_info(struct packed_git *p, off_t obj_offset,
*/
type = unpack_object_header(p, &w_curs, &curpos, &size);
if (sizep) {
if (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,
@ -1803,24 +1802,24 @@ static int packed_object_info(struct packed_git *p, off_t obj_offset,
type = OBJ_BAD;
goto out;
}
*sizep = get_size_from_delta(p, &w_curs, tmp_pos);
if (*sizep == 0) {
*oi->sizep = get_size_from_delta(p, &w_curs, tmp_pos);
if (*oi->sizep == 0) {
type = OBJ_BAD;
goto out;
}
} else {
*sizep = size;
*oi->sizep = size;
}
}
if (disk_sizep) {
if (oi->disk_sizep) {
struct revindex_entry *revidx = find_pack_revindex(p, obj_offset);
*disk_sizep = revidx[1].offset - obj_offset;
*oi->disk_sizep = revidx[1].offset - obj_offset;
}
if (typep) {
*typep = packed_to_object_type(p, obj_offset, type, &w_curs, curpos);
if (*typep < 0) {
if (oi->typep) {
*oi->typep = packed_to_object_type(p, obj_offset, type, &w_curs, curpos);
if (*oi->typep < 0) {
type = OBJ_BAD;
goto out;
}
@ -2385,9 +2384,7 @@ struct packed_git *find_sha1_pack(const unsigned char *sha1,
}
static int sha1_loose_object_info(const unsigned char *sha1,
enum object_type *typep,
unsigned long *sizep,
unsigned long *disk_sizep)
struct object_info *oi)
{
int status;
unsigned long mapsize, size;
@ -2399,12 +2396,12 @@ static int sha1_loose_object_info(const unsigned char *sha1,
* If we don't care about type or size, then we don't
* need to look inside the object at all.
*/
if (!typep && !sizep) {
if (disk_sizep) {
if (!oi->typep && !oi->sizep) {
if (oi->disk_sizep) {
struct stat st;
if (stat_sha1_file(sha1, &st) < 0)
return -1;
*disk_sizep = st.st_size;
*oi->disk_sizep = st.st_size;
}
return 0;
}
@ -2412,19 +2409,19 @@ static int sha1_loose_object_info(const unsigned char *sha1,
map = map_sha1_file(sha1, &mapsize);
if (!map)
return error("unable to find %s", sha1_to_hex(sha1));
if (disk_sizep)
*disk_sizep = mapsize;
if (oi->disk_sizep)
*oi->disk_sizep = mapsize;
if (unpack_sha1_header(&stream, map, mapsize, hdr, sizeof(hdr)) < 0)
status = error("unable to unpack %s header",
sha1_to_hex(sha1));
else if ((status = parse_sha1_header(hdr, &size)) < 0)
status = error("unable to parse %s header", sha1_to_hex(sha1));
else if (sizep)
*sizep = size;
else if (oi->sizep)
*oi->sizep = size;
git_inflate_end(&stream);
munmap(map, mapsize);
if (typep)
*typep = status;
if (oi->typep)
*oi->typep = status;
return 0;
}
@ -2449,8 +2446,7 @@ int sha1_object_info_extended(const unsigned char *sha1, struct object_info *oi)
if (!find_pack_entry(sha1, &e)) {
/* Most likely it's a loose object. */
if (!sha1_loose_object_info(sha1, oi->typep,
oi->sizep, oi->disk_sizep)) {
if (!sha1_loose_object_info(sha1, oi)) {
oi->whence = OI_LOOSE;
return 0;
}
@ -2461,8 +2457,7 @@ int sha1_object_info_extended(const unsigned char *sha1, struct object_info *oi)
return -1;
}
rtype = packed_object_info(e.p, e.offset, oi->typep, oi->sizep,
oi->disk_sizep);
rtype = packed_object_info(e.p, e.offset, oi);
if (rtype < 0) {
mark_bad_packed_object(e.p, sha1);
return sha1_object_info_extended(sha1, oi);