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sha1_file: teach sha1_object_info_extended more flags 

Improve sha1_object_info_extended() by supporting additional
flags. This allows has_sha1_file_with_flags() to be modified to use
sha1_object_info_extended() in a subsequent patch.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Tan 2017-06-21 17:40:22 -07:00 committed by Junio C Hamano
parent c84a1f3ed4
commit dfdd4afcf9
2 changed files with 28 additions and 19 deletions
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4
cache.h
View File

@ -1863,6 +1863,10 @@ struct object_info {
#define OBJECT_INFO_LOOKUP_REPLACE 1
/* Allow reading from a loose object file of unknown/bogus type */
#define OBJECT_INFO_ALLOW_UNKNOWN_TYPE 2
/* Do not check cached storage */
#define OBJECT_INFO_SKIP_CACHED 4
/* Do not retry packed storage after checking packed and loose storage */
#define OBJECT_INFO_QUICK 8
extern int sha1_object_info_extended(const unsigned char *, struct object_info *, unsigned flags);
extern int packed_object_info(struct packed_git *pack, off_t offset, struct object_info *);

43
sha1_file.c
View File

@ -2977,29 +2977,30 @@ static int sha1_loose_object_info(const unsigned char *sha1,
int sha1_object_info_extended(const unsigned char *sha1, struct object_info *oi, unsigned flags)
{
struct cached_object *co;
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));
if (oi->contentp)
*oi->contentp = xmemdupz(co->buf, co->size);
oi->whence = OI_CACHED;
return 0;
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)) {
@ -3010,9 +3011,13 @@ int sha1_object_info_extended(const unsigned char *sha1, struct object_info *oi,
}
/* 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;
}
}
rtype = packed_object_info(e.p, e.offset, oi);