send-email: simplify Gmail example in the documentation

diff --git a/builtin/branch.c b/builtin/branch.c
index eacec57593fda5dc15c611f0e92b4a6614c5aa00..2ecde53bf838777e191926557c0c8190cdc7d09a 100644 (file)
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -220,12 +220,12 @@ static int delete_branches(int argc, const char **argv, int force, int kinds,
                name = mkpathdup(fmt, bname.buf);
 
                if (kinds == FILTER_REFS_BRANCHES) {
-                       char *worktree = find_shared_symref("HEAD", name);
-                       if (worktree) {
+                       const struct worktree *wt =
+                               find_shared_symref("HEAD", name);
+                       if (wt) {
                                error(_("Cannot delete branch '%s' "
                                        "checked out at '%s'"),
-                                     bname.buf, worktree);
-                               free(worktree);
+                                     bname.buf, wt->path);
                                ret = 1;
                                continue;
                        }
@@ -526,6 +526,29 @@ static void print_ref_list(struct ref_filter *filter, struct ref_sorting *sortin
        ref_array_clear(&array);
 }
 
+static void reject_rebase_or_bisect_branch(const char *target)
+{
+       struct worktree **worktrees = get_worktrees();
+       int i;
+
+       for (i = 0; worktrees[i]; i++) {
+               struct worktree *wt = worktrees[i];
+
+               if (!wt->is_detached)
+                       continue;
+
+               if (is_worktree_being_rebased(wt, target))
+                       die(_("Branch %s is being rebased at %s"),
+                           target, wt->path);
+
+               if (is_worktree_being_bisected(wt, target))
+                       die(_("Branch %s is being bisected at %s"),
+                           target, wt->path);
+       }
+
+       free_worktrees(worktrees);
+}
+
 static void rename_branch(const char *oldname, const char *newname, int force)
 {
        struct strbuf oldref = STRBUF_INIT, newref = STRBUF_INIT, logmsg = STRBUF_INIT;
@@ -555,6 +578,8 @@ static void rename_branch(const char *oldname, const char *newname, int force)
 
        validate_new_branchname(newname, &newref, force, clobber_head_ok);
 
+       reject_rebase_or_bisect_branch(oldref.buf);
+
        strbuf_addf(&logmsg, "Branch: renamed %s to %s",
                 oldref.buf, newref.buf);