+#include "git-compat-util.h"
#include "cache.h"
+#include "config.h"
#include "branch.h"
#include "refs.h"
+#include "refspec.h"
#include "remote.h"
+#include "sequencer.h"
#include "commit.h"
+#include "worktree.h"
struct tracking {
- struct refspec spec;
+ struct refspec_item spec;
char *src;
const char *remote;
int matches;
tracking->remote = remote->name;
} else {
free(tracking->spec.src);
- if (tracking->src) {
- free(tracking->src);
- tracking->src = NULL;
- }
+ FREE_AND_NULL(tracking->src);
}
tracking->spec.src = NULL;
}
return 0;
}
-void install_branch_config(int flag, const char *local, const char *origin, const char *remote)
+static const char tracking_advice[] =
+N_("\n"
+"After fixing the error cause you may try to fix up\n"
+"the remote tracking information by invoking\n"
+"\"git branch --set-upstream-to=%s%s%s\".");
+
+int install_branch_config(int flag, const char *local, const char *origin, const char *remote)
{
- const char *shortname = remote + 11;
- int remote_is_branch = !prefixcmp(remote, "refs/heads/");
+ const char *shortname = NULL;
struct strbuf key = STRBUF_INIT;
int rebasing = should_setup_rebase(origin);
- if (remote_is_branch
+ if (skip_prefix(remote, "refs/heads/", &shortname)
&& !strcmp(local, shortname)
&& !origin) {
- warning("Not setting branch %s as its own upstream.",
+ warning(_("Not setting branch %s as its own upstream."),
local);
- return;
+ return 0;
}
strbuf_addf(&key, "branch.%s.remote", local);
- git_config_set(key.buf, origin ? origin : ".");
+ if (git_config_set_gently(key.buf, origin ? origin : ".") < 0)
+ goto out_err;
strbuf_reset(&key);
strbuf_addf(&key, "branch.%s.merge", local);
- git_config_set(key.buf, remote);
+ if (git_config_set_gently(key.buf, remote) < 0)
+ goto out_err;
if (rebasing) {
strbuf_reset(&key);
strbuf_addf(&key, "branch.%s.rebase", local);
- git_config_set(key.buf, "true");
+ if (git_config_set_gently(key.buf, "true") < 0)
+ goto out_err;
}
strbuf_release(&key);
if (flag & BRANCH_CONFIG_VERBOSE) {
- if (remote_is_branch && origin)
- printf(rebasing ?
- "Branch %s set up to track remote branch %s from %s by rebasing.\n" :
- "Branch %s set up to track remote branch %s from %s.\n",
- local, shortname, origin);
- else if (remote_is_branch && !origin)
- printf(rebasing ?
- "Branch %s set up to track local branch %s by rebasing.\n" :
- "Branch %s set up to track local branch %s.\n",
- local, shortname);
- else if (!remote_is_branch && origin)
- printf(rebasing ?
- "Branch %s set up to track remote ref %s by rebasing.\n" :
- "Branch %s set up to track remote ref %s.\n",
- local, remote);
- else if (!remote_is_branch && !origin)
- printf(rebasing ?
- "Branch %s set up to track local ref %s by rebasing.\n" :
- "Branch %s set up to track local ref %s.\n",
- local, remote);
- else
- die("BUG: impossible combination of %d and %p",
- remote_is_branch, origin);
+ if (shortname) {
+ if (origin)
+ printf_ln(rebasing ?
+ _("Branch '%s' set up to track remote branch '%s' from '%s' by rebasing.") :
+ _("Branch '%s' set up to track remote branch '%s' from '%s'."),
+ local, shortname, origin);
+ else
+ printf_ln(rebasing ?
+ _("Branch '%s' set up to track local branch '%s' by rebasing.") :
+ _("Branch '%s' set up to track local branch '%s'."),
+ local, shortname);
+ } else {
+ if (origin)
+ printf_ln(rebasing ?
+ _("Branch '%s' set up to track remote ref '%s' by rebasing.") :
+ _("Branch '%s' set up to track remote ref '%s'."),
+ local, remote);
+ else
+ printf_ln(rebasing ?
+ _("Branch '%s' set up to track local ref '%s' by rebasing.") :
+ _("Branch '%s' set up to track local ref '%s'."),
+ local, remote);
+ }
}
+
+ return 0;
+
+out_err:
+ strbuf_release(&key);
+ error(_("Unable to write upstream branch configuration"));
+
+ advise(_(tracking_advice),
+ origin ? origin : "",
+ origin ? "/" : "",
+ shortname ? shortname : remote);
+
+ return -1;
}
/*
* to infer the settings for branch.<new_ref>.{remote,merge} from the
* config.
*/
-static int setup_tracking(const char *new_ref, const char *orig_ref,
- enum branch_track track, int quiet)
+static void setup_tracking(const char *new_ref, const char *orig_ref,
+ enum branch_track track, int quiet)
{
struct tracking tracking;
int config_flags = quiet ? 0 : BRANCH_CONFIG_VERBOSE;
- if (strlen(new_ref) > 1024 - 7 - 7 - 1)
- return error("Tracking not set up: name too long: %s",
- new_ref);
-
memset(&tracking, 0, sizeof(tracking));
tracking.spec.dst = (char *)orig_ref;
if (for_each_remote(find_tracked_branch, &tracking))
- return 1;
+ return;
if (!tracking.matches)
switch (track) {
case BRANCH_TRACK_OVERRIDE:
break;
default:
- return 1;
+ return;
}
if (tracking.matches > 1)
- return error("Not tracking: ambiguous information for ref %s",
- orig_ref);
+ die(_("Not tracking: ambiguous information for ref %s"),
+ orig_ref);
- install_branch_config(config_flags, new_ref, tracking.remote,
- tracking.src ? tracking.src : orig_ref);
+ if (install_branch_config(config_flags, new_ref, tracking.remote,
+ tracking.src ? tracking.src : orig_ref) < 0)
+ exit(-1);
free(tracking.src);
- 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;
}
-int validate_new_branchname(const char *name, struct strbuf *ref,
- int force, int attr_only)
+/*
+ * Check if 'name' can be a valid name for a branch; die otherwise.
+ * Return 1 if the named branch already exists; return 0 otherwise.
+ * Fill ref with the full refname for the branch.
+ */
+int validate_branchname(const char *name, struct strbuf *ref)
{
if (strbuf_check_branch_ref(ref, name))
- die("'%s' is not a valid branch name.", name);
+ die(_("'%s' is not a valid branch name."), name);
+
+ return ref_exists(ref->buf);
+}
+
+/*
+ * Check if a branch 'name' can be created as a new branch; die otherwise.
+ * 'force' can be used when it is OK for the named branch already exists.
+ * Return 1 if the named branch already exists; return 0 otherwise.
+ * Fill ref with the full refname for the branch.
+ */
+int validate_new_branchname(const char *name, struct strbuf *ref, int force)
+{
+ const char *head;
- if (!ref_exists(ref->buf))
+ if (!validate_branchname(name, ref))
return 0;
- else if (!force && !attr_only)
- die("A branch named '%s' already exists.", ref->buf + strlen("refs/heads/"));
- if (!attr_only) {
- const char *head;
- unsigned char sha1[20];
+ if (!force)
+ die(_("A branch named '%s' already exists."),
+ ref->buf + strlen("refs/heads/"));
+
+ head = resolve_ref_unsafe("HEAD", 0, NULL, NULL);
+ if (!is_bare_repository() && head && !strcmp(head, ref->buf))
+ die(_("Cannot force update the current branch."));
- head = resolve_ref_unsafe("HEAD", sha1, 0, NULL);
- if (!is_bare_repository() && head && !strcmp(head, ref->buf))
- die("Cannot force update the current branch.");
- }
return 1;
}
-void create_branch(const char *head,
+static int check_tracking_branch(struct remote *remote, void *cb_data)
+{
+ char *tracking_branch = cb_data;
+ struct refspec_item query;
+ memset(&query, 0, sizeof(struct refspec_item));
+ query.dst = tracking_branch;
+ return !remote_find_tracking(remote, &query);
+}
+
+static int validate_remote_tracking_branch(char *ref)
+{
+ return !for_each_remote(check_tracking_branch, ref);
+}
+
+static const char upstream_not_branch[] =
+N_("Cannot setup tracking information; starting point '%s' is not a branch.");
+static const char upstream_missing[] =
+N_("the requested upstream branch '%s' does not exist");
+static const char upstream_advice[] =
+N_("\n"
+"If you are planning on basing your work on an upstream\n"
+"branch that already exists at the remote, you may need to\n"
+"run \"git fetch\" to retrieve it.\n"
+"\n"
+"If you are planning to push out a new local branch that\n"
+"will track its remote counterpart, you may want to use\n"
+"\"git push -u\" to set the upstream config as you push.");
+
+void create_branch(struct repository *r,
const char *name, const char *start_name,
- int force, int reflog, int clobber_head,
+ int force, int clobber_head_ok, int reflog,
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];
+ struct object_id oid;
+ char *real_ref;
struct strbuf ref = STRBUF_INIT;
int forcing = 0;
int dont_change_ref = 0;
if (track == BRANCH_TRACK_EXPLICIT || track == BRANCH_TRACK_OVERRIDE)
explicit_tracking = 1;
- if (validate_new_branchname(name, &ref, force,
- track == BRANCH_TRACK_OVERRIDE ||
- clobber_head)) {
+ if ((track == BRANCH_TRACK_OVERRIDE || clobber_head_ok)
+ ? validate_branchname(name, &ref)
+ : validate_new_branchname(name, &ref, force)) {
if (!force)
dont_change_ref = 1;
else
}
real_ref = NULL;
- if (get_sha1(start_name, sha1))
- die("Not a valid object name: '%s'.", start_name);
+ if (get_oid_mb(start_name, &oid)) {
+ if (explicit_tracking) {
+ if (advice_set_upstream_failure) {
+ error(_(upstream_missing), start_name);
+ advise(_(upstream_advice));
+ exit(1);
+ }
+ die(_(upstream_missing), start_name);
+ }
+ die(_("Not a valid object name: '%s'."), start_name);
+ }
- switch (dwim_ref(start_name, strlen(start_name), sha1, &real_ref)) {
+ switch (dwim_ref(start_name, strlen(start_name), &oid, &real_ref, 0)) {
case 0:
/* Not branching from any existing branch */
if (explicit_tracking)
- die("Cannot setup tracking information; starting point is not a branch.");
+ die(_(upstream_not_branch), start_name);
break;
case 1:
/* Unique completion -- good, only if it is a real branch */
- if (prefixcmp(real_ref, "refs/heads/") &&
- prefixcmp(real_ref, "refs/remotes/")) {
+ if (!starts_with(real_ref, "refs/heads/") &&
+ validate_remote_tracking_branch(real_ref)) {
if (explicit_tracking)
- die("Cannot setup tracking information; starting point is not a branch.");
+ die(_(upstream_not_branch), start_name);
else
real_ref = NULL;
}
break;
default:
- die("Ambiguous object name: '%s'.", start_name);
+ die(_("Ambiguous object name: '%s'."), start_name);
break;
}
- if ((commit = lookup_commit_reference(sha1)) == NULL)
- 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);
- if (!lock)
- die_errno("Failed to lock ref for update");
- }
+ if ((commit = lookup_commit_reference(r, &oid)) == NULL)
+ die(_("Not a valid branch point: '%s'."), start_name);
+ oidcpy(&oid, &commit->object.oid);
if (reflog)
- log_all_ref_updates = 1;
+ log_all_ref_updates = LOG_REFS_NORMAL;
- if (forcing)
- snprintf(msg, sizeof msg, "branch: Reset to %s",
- start_name);
- else if (!dont_change_ref)
- snprintf(msg, sizeof msg, "branch: Created from %s",
- start_name);
+ if (!dont_change_ref) {
+ struct ref_transaction *transaction;
+ struct strbuf err = STRBUF_INIT;
+ char *msg;
- if (real_ref && track)
- setup_tracking(ref.buf+11, real_ref, track, quiet);
+ if (forcing)
+ msg = xstrfmt("branch: Reset to %s", start_name);
+ else
+ msg = xstrfmt("branch: Created from %s", start_name);
+
+ transaction = ref_transaction_begin(&err);
+ if (!transaction ||
+ ref_transaction_update(transaction, ref.buf,
+ &oid, forcing ? NULL : &null_oid,
+ 0, msg, &err) ||
+ ref_transaction_commit(transaction, &err))
+ die("%s", err.buf);
+ ref_transaction_free(transaction);
+ strbuf_release(&err);
+ free(msg);
+ }
- if (!dont_change_ref)
- if (write_ref_sha1(lock, sha1, msg) < 0)
- die_errno("Failed to write ref");
+ if (real_ref && track)
+ setup_tracking(ref.buf + 11, real_ref, track, quiet);
strbuf_release(&ref);
free(real_ref);
}
-void remove_branch_state(void)
+void remove_merge_branch_state(struct repository *r)
+{
+ unlink(git_path_merge_head(r));
+ unlink(git_path_merge_rr(r));
+ unlink(git_path_merge_msg(r));
+ unlink(git_path_merge_mode(r));
+ save_autostash(git_path_merge_autostash(r));
+}
+
+void remove_branch_state(struct repository *r, int verbose)
+{
+ sequencer_post_commit_cleanup(r, verbose);
+ unlink(git_path_squash_msg(r));
+ remove_merge_branch_state(r);
+}
+
+void die_if_checked_out(const char *branch, int ignore_current_worktree)
+{
+ const struct worktree *wt;
+
+ wt = find_shared_symref("HEAD", branch);
+ if (!wt || (ignore_current_worktree && wt->is_current))
+ return;
+ skip_prefix(branch, "refs/heads/", &branch);
+ die(_("'%s' is already checked out at '%s'"),
+ branch, wt->path);
+}
+
+int replace_each_worktree_head_symref(const char *oldref, const char *newref,
+ const char *logmsg)
{
- unlink(git_path("CHERRY_PICK_HEAD"));
- unlink(git_path("REVERT_HEAD"));
- unlink(git_path("MERGE_HEAD"));
- unlink(git_path("MERGE_RR"));
- unlink(git_path("MERGE_MSG"));
- unlink(git_path("MERGE_MODE"));
- unlink(git_path("SQUASH_MSG"));
+ int ret = 0;
+ struct worktree **worktrees = get_worktrees();
+ int i;
+
+ for (i = 0; worktrees[i]; i++) {
+ struct ref_store *refs;
+
+ if (worktrees[i]->is_detached)
+ continue;
+ if (!worktrees[i]->head_ref)
+ continue;
+ if (strcmp(oldref, worktrees[i]->head_ref))
+ continue;
+
+ refs = get_worktree_ref_store(worktrees[i]);
+ if (refs_create_symref(refs, "HEAD", newref, logmsg))
+ ret = error(_("HEAD of working tree %s is not updated"),
+ worktrees[i]->path);
+ }
+
+ free_worktrees(worktrees);
+ return ret;
}