return 0;
}
-struct branch_desc_cb {
- const char *config_name;
- const char *value;
-};
-
-static int read_branch_desc_cb(const char *var, const char *value, void *cb)
-{
- struct branch_desc_cb *desc = cb;
- if (strcmp(desc->config_name, var))
- return 0;
- free((char *)desc->value);
- return git_config_string(&desc->value, var, value);
-}
-
int read_branch_desc(struct strbuf *buf, const char *branch_name)
{
- struct branch_desc_cb cb;
+ char *v = NULL;
struct strbuf name = STRBUF_INIT;
strbuf_addf(&name, "branch.%s.description", branch_name);
- cb.config_name = name.buf;
- cb.value = NULL;
- if (git_config(read_branch_desc_cb, &cb) < 0) {
+ if (git_config_get_string(name.buf, &v)) {
strbuf_release(&name);
return -1;
}
- if (cb.value)
- strbuf_addstr(buf, cb.value);
+ strbuf_addstr(buf, v);
+ free(v);
strbuf_release(&name);
return 0;
}
const char *head;
unsigned char sha1[20];
- head = resolve_ref_unsafe("HEAD", sha1, 0, NULL);
+ head = resolve_ref_unsafe("HEAD", 0, sha1, NULL);
if (!is_bare_repository() && head && !strcmp(head, ref->buf))
die(_("Cannot force update the current branch."));
}
int force, int reflog, int clobber_head,
int quiet, enum branch_track track)
{
- struct ref_lock *lock = NULL;
struct commit *commit;
unsigned char sha1[20];
char *real_ref, msg[PATH_MAX + 20];
die(_("Not a valid branch point: '%s'."), start_name);
hashcpy(sha1, commit->object.sha1);
- if (!dont_change_ref) {
- lock = lock_any_ref_for_update(ref.buf, NULL, 0, NULL);
- if (!lock)
- die_errno(_("Failed to lock ref for update"));
- }
-
- if (reflog)
- log_all_ref_updates = 1;
-
if (forcing)
snprintf(msg, sizeof msg, "branch: Reset to %s",
start_name);
snprintf(msg, sizeof msg, "branch: Created from %s",
start_name);
+ if (reflog)
+ log_all_ref_updates = 1;
+
+ if (!dont_change_ref) {
+ struct ref_transaction *transaction;
+ struct strbuf err = STRBUF_INIT;
+
+ transaction = ref_transaction_begin(&err);
+ if (!transaction ||
+ ref_transaction_update(transaction, ref.buf, sha1,
+ null_sha1, 0, !forcing, msg, &err) ||
+ ref_transaction_commit(transaction, &err))
+ die("%s", err.buf);
+ ref_transaction_free(transaction);
+ strbuf_release(&err);
+ }
+
if (real_ref && track)
setup_tracking(ref.buf + 11, real_ref, track, quiet);
- if (!dont_change_ref)
- if (write_ref_sha1(lock, sha1, msg) < 0)
- die_errno(_("Failed to write ref"));
-
strbuf_release(&ref);
free(real_ref);
}
unlink(git_path("MERGE_MODE"));
unlink(git_path("SQUASH_MSG"));
}
+
+static void check_linked_checkout(const char *branch, const char *id)
+{
+ struct strbuf sb = STRBUF_INIT;
+ struct strbuf path = STRBUF_INIT;
+ struct strbuf gitdir = STRBUF_INIT;
+
+ /*
+ * $GIT_COMMON_DIR/HEAD is practically outside
+ * $GIT_DIR so resolve_ref_unsafe() won't work (it
+ * uses git_path). Parse the ref ourselves.
+ */
+ if (id)
+ strbuf_addf(&path, "%s/worktrees/%s/HEAD", get_git_common_dir(), id);
+ else
+ strbuf_addf(&path, "%s/HEAD", get_git_common_dir());
+
+ if (!strbuf_readlink(&sb, path.buf, 0)) {
+ if (!starts_with(sb.buf, "refs/") ||
+ check_refname_format(sb.buf, 0))
+ goto done;
+ } else if (strbuf_read_file(&sb, path.buf, 0) >= 0 &&
+ starts_with(sb.buf, "ref:")) {
+ strbuf_remove(&sb, 0, strlen("ref:"));
+ strbuf_trim(&sb);
+ } else
+ goto done;
+ if (strcmp(sb.buf, branch))
+ goto done;
+ if (id) {
+ strbuf_reset(&path);
+ strbuf_addf(&path, "%s/worktrees/%s/gitdir", get_git_common_dir(), id);
+ if (strbuf_read_file(&gitdir, path.buf, 0) <= 0)
+ goto done;
+ strbuf_rtrim(&gitdir);
+ } else
+ strbuf_addstr(&gitdir, get_git_common_dir());
+ skip_prefix(branch, "refs/heads/", &branch);
+ strbuf_strip_suffix(&gitdir, ".git");
+ die(_("'%s' is already checked out at '%s'"), branch, gitdir.buf);
+done:
+ strbuf_release(&path);
+ strbuf_release(&sb);
+ strbuf_release(&gitdir);
+}
+
+void die_if_checked_out(const char *branch)
+{
+ struct strbuf path = STRBUF_INIT;
+ DIR *dir;
+ struct dirent *d;
+
+ check_linked_checkout(branch, NULL);
+
+ strbuf_addf(&path, "%s/worktrees", get_git_common_dir());
+ dir = opendir(path.buf);
+ strbuf_release(&path);
+ if (!dir)
+ return;
+
+ while ((d = readdir(dir)) != NULL) {
+ if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
+ continue;
+ check_linked_checkout(branch, d->d_name);
+ }
+ closedir(dir);
+}