upload-pack: add get_reachable_list()

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2016-06-12 17:54:08 +07:00 коммит произвёл Junio C Hamano
Родитель 2997178ee6
Коммит 079aa97e24
2 изменённых файлов: 50 добавлений и 4 удалений

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@ -31,7 +31,7 @@ struct object_array {
* revision.h: 0---------10 26
* fetch-pack.c: 0---4
* walker.c: 0-2
* upload-pack.c: 11----------------19
* upload-pack.c: 4 11----------------19
* builtin/blame.c: 12-13
* bisect.c: 16
* bundle.c: 16

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@ -456,7 +456,8 @@ static int is_our_ref(struct object *o)
* on successful case, it's up to the caller to close cmd->out
*/
static int do_reachable_revlist(struct child_process *cmd,
struct object_array *src)
struct object_array *src,
struct object_array *reachable)
{
static const char *argv[] = {
"rev-list", "--stdin", NULL,
@ -487,6 +488,8 @@ static int do_reachable_revlist(struct child_process *cmd,
o = get_indexed_object(--i);
if (!o)
continue;
if (reachable && o->type == OBJ_COMMIT)
o->flags &= ~TMP_MARK;
if (!is_our_ref(o))
continue;
memcpy(namebuf + 1, oid_to_hex(&o->oid), GIT_SHA1_HEXSZ);
@ -496,8 +499,13 @@ static int do_reachable_revlist(struct child_process *cmd,
namebuf[40] = '\n';
for (i = 0; i < src->nr; i++) {
o = src->objects[i].item;
if (is_our_ref(o))
if (is_our_ref(o)) {
if (reachable)
add_object_array(o, NULL, reachable);
continue;
}
if (reachable && o->type == OBJ_COMMIT)
o->flags |= TMP_MARK;
memcpy(namebuf, oid_to_hex(&o->oid), GIT_SHA1_HEXSZ);
if (write_in_full(cmd->in, namebuf, 41) < 0)
goto error;
@ -518,13 +526,51 @@ error:
return -1;
}
static int get_reachable_list(struct object_array *src,
struct object_array *reachable)
{
struct child_process cmd = CHILD_PROCESS_INIT;
int i;
struct object *o;
char namebuf[42]; /* ^ + SHA-1 + LF */
if (do_reachable_revlist(&cmd, src, reachable) < 0)
return -1;
while ((i = read_in_full(cmd.out, namebuf, 41)) == 41) {
struct object_id sha1;
if (namebuf[40] != '\n' || get_oid_hex(namebuf, &sha1))
break;
o = lookup_object(sha1.hash);
if (o && o->type == OBJ_COMMIT) {
o->flags &= ~TMP_MARK;
}
}
for (i = get_max_object_index(); 0 < i; i--) {
o = get_indexed_object(i - 1);
if (o && o->type == OBJ_COMMIT &&
(o->flags & TMP_MARK)) {
add_object_array(o, NULL, reachable);
o->flags &= ~TMP_MARK;
}
}
close(cmd.out);
if (finish_command(&cmd))
return -1;
return 0;
}
static int has_unreachable(struct object_array *src)
{
struct child_process cmd = CHILD_PROCESS_INIT;
char buf[1];
int i;
if (do_reachable_revlist(&cmd, src) < 0)
if (do_reachable_revlist(&cmd, src, NULL) < 0)
return 1;
/*