"git-fetch-pack [-q] [-v] [--exec=upload-pack] [host:]directory <refs>...";
static const char *exec = "git-upload-pack";
+#define COMPLETE (1U << 0)
+
static int find_common(int fd[2], unsigned char *result_sha1,
struct ref *refs)
{
int fetching;
static char line[1000];
- int count = 0, flushes = 0, retval;
+ static char rev_command[1024];
+ int count = 0, flushes = 0, retval, rev_command_len;
FILE *revs;
- revs = popen("git-rev-list $(git-rev-parse --all)", "r");
- if (!revs)
- die("unable to run 'git-rev-list'");
-
+ strcpy(rev_command, "git-rev-list $(git-rev-parse --all)");
+ rev_command_len = strlen(rev_command);
fetching = 0;
for ( ; refs ; refs = refs->next) {
unsigned char *remote = refs->old_sha1;
- unsigned char *local = refs->new_sha1;
+ struct object *o;
- if (!memcmp(remote, local, 20))
+ /*
+ * If that object is complete (i.e. it is an ancestor of a
+ * local ref), we tell them we have it but do not have to
+ * tell them about its ancestors, which they already know
+ * about.
+ *
+ * We use lookup_object here because we are only
+ * interested in the case we *know* the object is
+ * reachable and we have already scanned it.
+ */
+ if (((o = lookup_object(remote)) != NULL) &&
+ (o->flags & COMPLETE)) {
+ struct commit_list *p;
+ struct commit *commit =
+ (struct commit *) (o = deref_tag(o));
+ if (!o)
+ goto repair;
+ if (o->type != commit_type)
+ continue;
+ p = commit->parents;
+ while (p &&
+ rev_command_len + 44 < sizeof(rev_command)) {
+ snprintf(rev_command + rev_command_len, 44,
+ " ^%s",
+ sha1_to_hex(p->item->object.sha1));
+ rev_command_len += 43;
+ p = p->next;
+ }
continue;
+ }
+ repair:
packet_write(fd[1], "want %s\n", sha1_to_hex(remote));
fetching++;
}
packet_flush(fd[1]);
if (!fetching)
return 1;
+
+ revs = popen(rev_command, "r");
+ if (!revs)
+ die("unable to run 'git-rev-list'");
+
flushes = 1;
retval = -1;
while (fgets(line, sizeof(line), revs) != NULL) {
return retval;
}
-#define COMPLETE (1U << 0)
static struct commit_list *complete = NULL;
static int mark_complete(const char *path, const unsigned char *sha1)
struct object *o = parse_object(sha1);
while (o && o->type == tag_type) {
+ struct tag *t = (struct tag *) o;
+ if (!t->tagged)
+ break; /* broken repository */
o->flags |= COMPLETE;
- o = parse_object(((struct tag *)o)->tagged->sha1);
+ o = parse_object(t->tagged->sha1);
}
- if (o->type == commit_type) {
+ if (o && o->type == commit_type) {
struct commit *commit = (struct commit *)o;
commit->object.flags |= COMPLETE;
insert_by_date(commit, &complete);