void test_network_remote_defaultbranch__detached_sharing_nonbranch_id(void)
{
git_oid id, id_cloned;
git_reference *ref;
git_buf buf = GIT_BUF_INIT;
git_repository *cloned_repo;
cl_git_pass(git_reference_name_to_id(&id, g_repo_a, "HEAD"));
cl_git_pass(git_repository_detach_head(g_repo_a, NULL, NULL));
cl_git_pass(git_reference_remove(g_repo_a, "refs/heads/master"));
cl_git_pass(git_reference_remove(g_repo_a, "refs/heads/not-good"));
cl_git_pass(git_reference_create(&ref, g_repo_a, "refs/foo/bar", &id, 1, NULL, NULL));
git_reference_free(ref);
cl_git_pass(git_remote_connect(g_remote, GIT_DIRECTION_FETCH));
cl_git_fail_with(GIT_ENOTFOUND, git_remote_default_branch(&buf, g_remote));
cl_git_pass(git_clone(&cloned_repo, git_repository_path(g_repo_a), "./local-detached", NULL));
cl_assert(git_repository_head_detached(cloned_repo));
cl_git_pass(git_reference_name_to_id(&id_cloned, g_repo_a, "HEAD"));
cl_assert(git_oid_equal(&id, &id_cloned));
git_repository_free(cloned_repo);
}
static void assert_default_branch(const char *should)
{
git_buf name = GIT_BUF_INIT;
cl_git_pass(git_remote_connect(g_remote, GIT_DIRECTION_FETCH));
cl_git_pass(git_remote_default_branch(&name, g_remote));
cl_assert_equal_s(should, name.ptr);
git_buf_free(&name);
}
void test_network_remote_defaultbranch__no_default_branch(void)
{
git_remote *remote_b;
const git_remote_head **heads;
size_t len;
git_buf buf = GIT_BUF_INIT;
cl_git_pass(git_remote_create(&remote_b, g_repo_b, "self", git_repository_path(g_repo_b)));
cl_git_pass(git_remote_connect(remote_b, GIT_DIRECTION_FETCH));
cl_git_pass(git_remote_ls(&heads, &len, remote_b));
cl_assert_equal_i(0, len);
cl_git_fail_with(GIT_ENOTFOUND, git_remote_default_branch(&buf, remote_b));
git_remote_free(remote_b);
}
static int update_head_to_remote(
git_repository *repo,
git_remote *remote,
const git_signature *signature,
const char *reflog_message)
{
int error = 0, found_branch = 0;
size_t refs_len;
git_refspec dummy_spec, *refspec;
const git_remote_head *remote_head, **refs;
const git_oid *remote_head_id;
git_buf remote_master_name = GIT_BUF_INIT;
git_buf branch = GIT_BUF_INIT;
if ((error = git_remote_ls(&refs, &refs_len, remote)) < 0)
return error;
/* Did we just clone an empty repository? */
if (refs_len == 0)
return setup_tracking_config(
repo, "master", GIT_REMOTE_ORIGIN, GIT_REFS_HEADS_MASTER_FILE);
error = git_remote_default_branch(&branch, remote);
if (error == GIT_ENOTFOUND) {
git_buf_puts(&branch, GIT_REFS_HEADS_MASTER_FILE);
} else {
found_branch = 1;
}
/* Get the remote's HEAD. This is always the first ref in the list. */
remote_head = refs[0];
assert(remote_head);
remote_head_id = &remote_head->oid;
refspec = git_remote__matching_refspec(remote, git_buf_cstr(&branch));
if (refspec == NULL) {
memset(&dummy_spec, 0, sizeof(git_refspec));
refspec = &dummy_spec;
}
/* Determine the remote tracking reference name from the local master */
if ((error = git_refspec_transform(
&remote_master_name,
refspec,
git_buf_cstr(&branch))) < 0)
return error;
if (found_branch) {
error = update_head_to_new_branch(
repo,
remote_head_id,
git_buf_cstr(&branch),
signature, reflog_message);
} else {
error = git_repository_set_head_detached(
repo, remote_head_id, signature, reflog_message);
}
git_buf_free(&remote_master_name);
git_buf_free(&branch);
return error;
}
static int update_head_to_remote(
git_repository *repo,
git_remote *remote,
const char *reflog_message)
{
int error = 0;
size_t refs_len;
git_refspec *refspec;
const git_remote_head *remote_head, **refs;
const git_oid *remote_head_id;
git_buf remote_master_name = GIT_BUF_INIT;
git_buf branch = GIT_BUF_INIT;
if ((error = git_remote_ls(&refs, &refs_len, remote)) < 0)
return error;
/* We cloned an empty repository or one with an unborn HEAD */
if (refs_len == 0 || strcmp(refs[0]->name, GIT_HEAD_FILE))
return setup_tracking_config(
repo, "master", GIT_REMOTE_ORIGIN, GIT_REFS_HEADS_MASTER_FILE);
/* We know we have HEAD, let's see where it points */
remote_head = refs[0];
assert(remote_head);
remote_head_id = &remote_head->oid;
error = git_remote_default_branch(&branch, remote);
if (error == GIT_ENOTFOUND) {
error = git_repository_set_head_detached(
repo, remote_head_id);
goto cleanup;
}
refspec = git_remote__matching_refspec(remote, git_buf_cstr(&branch));
if (refspec == NULL) {
git_error_set(GIT_ERROR_NET, "the remote's default branch does not fit the refspec configuration");
error = GIT_EINVALIDSPEC;
goto cleanup;
}
/* Determine the remote tracking reference name from the local master */
if ((error = git_refspec_transform(
&remote_master_name,
refspec,
git_buf_cstr(&branch))) < 0)
goto cleanup;
error = update_head_to_new_branch(
repo,
remote_head_id,
git_buf_cstr(&branch),
reflog_message);
cleanup:
git_buf_dispose(&remote_master_name);
git_buf_dispose(&branch);
return error;
}
