difftool: remove the backup file feature

diff --git a/builtin-checkout.c b/builtin-checkout.c
index 9fdfc58d1a198164727431352e083585d91f2d30..33d1fecb6251b4922666255817addeb9f672fa29 100644 (file)
--- a/builtin-checkout.c
+++ b/builtin-checkout.c
@@ -353,16 +353,11 @@ struct branch_info {
 static void setup_branch_path(struct branch_info *branch)
 {
        struct strbuf buf = STRBUF_INIT;
-       int ret;
 
-       if ((ret = interpret_nth_last_branch(branch->name, &buf))
-           && ret == strlen(branch->name)) {
+       strbuf_branchname(&buf, branch->name);
+       if (strcmp(buf.buf, branch->name))
                branch->name = xstrdup(buf.buf);
-               strbuf_splice(&buf, 0, 0, "refs/heads/", 11);
-       } else {
-               strbuf_addstr(&buf, "refs/heads/");
-               strbuf_addstr(&buf, branch->name);
-       }
+       strbuf_splice(&buf, 0, 0, "refs/heads/", 11);
        branch->path = strbuf_detach(&buf, NULL);
 }
 
@@ -558,8 +553,8 @@ static int switch_branches(struct checkout_opts *opts, struct branch_info *new)
 
        if (!old.commit && !opts->force) {
                if (!opts->quiet) {
-                       fprintf(stderr, "warning: You appear to be on a branch yet to be born.\n");
-                       fprintf(stderr, "warning: Forcing checkout of %s.\n", new->name);
+                       warning("You appear to be on a branch yet to be born.");
+                       warning("Forcing checkout of %s.", new->name);
                }
                opts->force = 1;
        }
@@ -738,12 +733,11 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
 
        if (opts.new_branch) {
                struct strbuf buf = STRBUF_INIT;
-               strbuf_addstr(&buf, "refs/heads/");
-               strbuf_addstr(&buf, opts.new_branch);
+               if (strbuf_check_branch_ref(&buf, opts.new_branch))
+                       die("git checkout: we do not like '%s' as a branch name.",
+                           opts.new_branch);
                if (!get_sha1(buf.buf, rev))
                        die("git checkout: branch %s already exists", opts.new_branch);
-               if (check_ref_format(buf.buf))
-                       die("git checkout: we do not like '%s' as a branch name.", opts.new_branch);
                strbuf_release(&buf);
        }