#include "transport.h"
#include "version.h"
#include "prio-queue.h"
+#include "sha1-array.h"
static int transfer_unpack_limit = -1;
static int fetch_unpack_limit = -1;
}
if (is_repository_shallow())
- write_shallow_commits(&req_buf, 1);
+ write_shallow_commits(&req_buf, 1, NULL);
if (args->depth > 0)
packet_buf_write(&req_buf, "deepen %d", args->depth);
packet_buf_flush(&req_buf);
int fd[2],
const struct ref *orig_ref,
struct ref **sought, int nr_sought,
+ struct shallow_info *si,
char **pack_lockfile)
{
struct ref *ref = copy_ref_list(orig_ref);
if (args->stateless_rpc)
packet_flush(fd[1]);
if (args->depth > 0)
- setup_alternate_shallow(&shallow_lock, &alternate_shallow_file);
+ setup_alternate_shallow(&shallow_lock, &alternate_shallow_file,
+ NULL);
+ else if (si->nr_ours || si->nr_theirs)
+ alternate_shallow_file = setup_temporary_shallow(si->shallow);
else
alternate_shallow_file = NULL;
if (get_pack(args, fd, pack_lockfile))
return dst;
}
+static void update_shallow(struct fetch_pack_args *args,
+ struct ref **sought, int nr_sought,
+ struct shallow_info *si)
+{
+ struct sha1_array ref = SHA1_ARRAY_INIT;
+ int *status;
+ int i;
+
+ if (args->depth > 0 && alternate_shallow_file) {
+ if (*alternate_shallow_file == '\0') { /* --unshallow */
+ unlink_or_warn(git_path("shallow"));
+ rollback_lock_file(&shallow_lock);
+ } else
+ commit_lock_file(&shallow_lock);
+ return;
+ }
+
+ if (!si->shallow || !si->shallow->nr)
+ return;
+
+ if (alternate_shallow_file) {
+ /*
+ * The temporary shallow file is only useful for
+ * index-pack and unpack-objects because it may
+ * contain more roots than we want. Delete it.
+ */
+ if (*alternate_shallow_file)
+ unlink(alternate_shallow_file);
+ free((char *)alternate_shallow_file);
+ }
+
+ if (args->cloning) {
+ /*
+ * remote is shallow, but this is a clone, there are
+ * no objects in repo to worry about. Accept any
+ * shallow points that exist in the pack (iow in repo
+ * after get_pack() and reprepare_packed_git())
+ */
+ struct sha1_array extra = SHA1_ARRAY_INIT;
+ unsigned char (*sha1)[20] = si->shallow->sha1;
+ for (i = 0; i < si->shallow->nr; i++)
+ if (has_sha1_file(sha1[i]))
+ sha1_array_append(&extra, sha1[i]);
+ if (extra.nr) {
+ setup_alternate_shallow(&shallow_lock,
+ &alternate_shallow_file,
+ &extra);
+ commit_lock_file(&shallow_lock);
+ }
+ sha1_array_clear(&extra);
+ return;
+ }
+
+ if (!si->nr_ours && !si->nr_theirs)
+ return;
+
+ remove_nonexistent_theirs_shallow(si);
+ if (!si->nr_ours && !si->nr_theirs)
+ return;
+ for (i = 0; i < nr_sought; i++)
+ sha1_array_append(&ref, sought[i]->old_sha1);
+ si->ref = &ref;
+
+ if (args->update_shallow) {
+ /*
+ * remote is also shallow, .git/shallow may be updated
+ * so all refs can be accepted. Make sure we only add
+ * shallow roots that are actually reachable from new
+ * refs.
+ */
+ struct sha1_array extra = SHA1_ARRAY_INIT;
+ unsigned char (*sha1)[20] = si->shallow->sha1;
+ assign_shallow_commits_to_refs(si, NULL, NULL);
+ if (!si->nr_ours && !si->nr_theirs) {
+ sha1_array_clear(&ref);
+ return;
+ }
+ for (i = 0; i < si->nr_ours; i++)
+ sha1_array_append(&extra, sha1[si->ours[i]]);
+ for (i = 0; i < si->nr_theirs; i++)
+ sha1_array_append(&extra, sha1[si->theirs[i]]);
+ setup_alternate_shallow(&shallow_lock,
+ &alternate_shallow_file,
+ &extra);
+ commit_lock_file(&shallow_lock);
+ sha1_array_clear(&extra);
+ sha1_array_clear(&ref);
+ return;
+ }
+
+ /*
+ * remote is also shallow, check what ref is safe to update
+ * without updating .git/shallow
+ */
+ status = xcalloc(nr_sought, sizeof(*status));
+ assign_shallow_commits_to_refs(si, NULL, status);
+ if (si->nr_ours || si->nr_theirs) {
+ for (i = 0; i < nr_sought; i++)
+ if (status[i])
+ sought[i]->status = REF_STATUS_REJECT_SHALLOW;
+ }
+ free(status);
+ sha1_array_clear(&ref);
+}
+
struct ref *fetch_pack(struct fetch_pack_args *args,
int fd[], struct child_process *conn,
const struct ref *ref,
const char *dest,
struct ref **sought, int nr_sought,
+ struct sha1_array *shallow,
char **pack_lockfile)
{
struct ref *ref_cpy;
+ struct shallow_info si;
fetch_pack_setup();
if (nr_sought)
packet_flush(fd[1]);
die("no matching remote head");
}
- ref_cpy = do_fetch_pack(args, fd, ref, sought, nr_sought, pack_lockfile);
-
- if (args->depth > 0 && alternate_shallow_file) {
- if (*alternate_shallow_file == '\0') { /* --unshallow */
- unlink_or_warn(git_path("shallow"));
- rollback_lock_file(&shallow_lock);
- } else
- commit_lock_file(&shallow_lock);
- }
-
+ prepare_shallow_info(&si, shallow);
+ ref_cpy = do_fetch_pack(args, fd, ref, sought, nr_sought,
+ &si, pack_lockfile);
reprepare_packed_git();
+ update_shallow(args, sought, nr_sought, &si);
+ clear_shallow_info(&si);
return ref_cpy;
}