/*
* Make a pack stream and spit it out into file descriptor fd
*/
-static int pack_objects(int fd, struct ref *refs)
+static int pack_objects(int fd, struct ref *refs, struct extra_have_objects *extra)
{
/*
* The child becomes pack-objects --revs; we feed
NULL,
};
struct child_process po;
+ int i;
+ char buf[42];
if (args.use_thin_pack)
argv[4] = "--thin";
* We feed the pack-objects we just spawned with revision
* parameters by writing to the pipe.
*/
- while (refs) {
- char buf[42];
+ for (i = 0; i < extra->nr; i++) {
+ memcpy(buf + 1, sha1_to_hex(&extra->array[i][0]), 40);
+ buf[0] = '^';
+ buf[41] = '\n';
+ if (!write_or_whine(po.in, buf, 42, "send-pack: send refs"))
+ break;
+ }
+ while (refs) {
if (!is_null_sha1(refs->old_sha1) &&
has_sha1_file(refs->old_sha1)) {
memcpy(buf + 1, sha1_to_hex(refs->old_sha1), 40);
{
struct refspec rs;
- if (ref->status != REF_STATUS_OK)
+ if (ref->status != REF_STATUS_OK && ref->status != REF_STATUS_UPTODATE)
return;
rs.src = ref->name;
int expect_status_report = 0;
int flags = MATCH_REFS_NONE;
int ret;
+ struct extra_have_objects extra_have;
+ memset(&extra_have, 0, sizeof(extra_have));
if (args.send_all)
flags |= MATCH_REFS_ALL;
if (args.send_mirror)
flags |= MATCH_REFS_MIRROR;
/* No funny business with the matcher */
- remote_tail = get_remote_heads(in, &remote_refs, 0, NULL, REF_NORMAL);
+ remote_tail = get_remote_heads(in, &remote_refs, 0, NULL, REF_NORMAL,
+ &extra_have);
get_local_heads();
/* Does the other end support the reporting? */
*/
new_refs = 0;
for (ref = remote_refs; ref; ref = ref->next) {
- const unsigned char *new_sha1;
-
- if (!ref->peer_ref) {
- if (!args.send_mirror)
- continue;
- new_sha1 = null_sha1;
- }
- else
- new_sha1 = ref->peer_ref->new_sha1;
+ if (ref->peer_ref)
+ hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
+ else if (!args.send_mirror)
+ continue;
- ref->deletion = is_null_sha1(new_sha1);
+ ref->deletion = is_null_sha1(ref->new_sha1);
if (ref->deletion && !allow_deleting_refs) {
ref->status = REF_STATUS_REJECT_NODELETE;
continue;
}
if (!ref->deletion &&
- !hashcmp(ref->old_sha1, new_sha1)) {
+ !hashcmp(ref->old_sha1, ref->new_sha1)) {
ref->status = REF_STATUS_UPTODATE;
continue;
}
!ref->deletion &&
!is_null_sha1(ref->old_sha1) &&
(!has_sha1_file(ref->old_sha1)
- || !ref_newer(new_sha1, ref->old_sha1));
+ || !ref_newer(ref->new_sha1, ref->old_sha1));
if (ref->nonfastforward && !ref->force && !args.force_update) {
ref->status = REF_STATUS_REJECT_NONFASTFORWARD;
continue;
}
- hashcpy(ref->new_sha1, new_sha1);
if (!ref->deletion)
new_refs++;
packet_flush(out);
if (new_refs && !args.dry_run) {
- if (pack_objects(out, remote_refs) < 0)
+ if (pack_objects(out, remote_refs, &extra_have) < 0)
return -1;
}
else
return retval;
}
+/*
+ * If the "reading" argument is set, this function finds out what _object_
+ * the ref points at by "reading" the ref. The ref, if it is not symbolic,
+ * has to exist, and if it is symbolic, it has to point at an existing ref,
+ * because the "read" goes through the symref to the ref it points at.
+ *
+ * The access that is not "reading" may often be "writing", but does not
+ * have to; it can be merely checking _where it leads to_. If it is a
+ * prelude to "writing" to the ref, a write to a symref that points at
+ * yet-to-be-born ref will create the real ref pointed by the symref.
+ * reading=0 allows the caller to check where such a symref leads to.
+ */
const char *resolve_ref(const char *ref, unsigned char *sha1, int reading, int *flag)
{
int depth = MAXDEPTH;
return NULL;
git_snpath(path, sizeof(path), "%s", ref);
- /* Special case: non-existing file.
- * Not having the refs/heads/new-branch is OK
- * if we are writing into it, so is .git/HEAD
- * that points at refs/heads/master still to be
- * born. It is NOT OK if we are resolving for
- * reading.
- */
+ /* Special case: non-existing file. */
if (lstat(path, &st) < 0) {
struct ref_list *list = get_packed_refs();
while (list) {
char *ref_file;
const char *orig_ref = ref;
struct ref_lock *lock;
- struct stat st;
int last_errno = 0;
int type, lflags;
int mustexist = (old_sha1 && !is_null_sha1(old_sha1));
+ int missing = 0;
lock = xcalloc(1, sizeof(struct ref_lock));
lock->lock_fd = -1;
orig_ref, strerror(errno));
goto error_return;
}
+ missing = is_null_sha1(lock->old_sha1);
/* When the ref did not exist and we are creating it,
* make sure there is no existing ref that is packed
* whose name begins with our refname, nor a ref whose
* name is a proper prefix of our refname.
*/
- if (is_null_sha1(lock->old_sha1) &&
+ if (missing &&
!is_refname_available(ref, NULL, get_packed_refs(), 0))
goto error_return;
lock->ref_name = xstrdup(ref);
lock->orig_ref_name = xstrdup(orig_ref);
ref_file = git_path("%s", ref);
- if (lstat(ref_file, &st) && errno == ENOENT)
+ if (missing)
lock->force_write = 1;
if ((flags & REF_NODEREF) && (type & REF_ISSYMREF))
lock->force_write = 1;