Merge branch 'jk/maint-commit-document-editmsg' into maint

diff --git a/builtin/checkout.c b/builtin/checkout.c
index 3ddda34f7a96c56707614dbaac40631467a2b54b..3980d5d06ea5aba4f4d6d30089307fe76c8adff9 100644 (file)
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -343,7 +343,7 @@ static int reset_tree(struct tree *tree, struct checkout_opts *o, int worktree)
        opts.reset = 1;
        opts.merge = 1;
        opts.fn = oneway_merge;
-       opts.verbose_update = !o->quiet;
+       opts.verbose_update = !o->quiet && isatty(2);
        opts.src_index = &the_index;
        opts.dst_index = &the_index;
        parse_tree(tree);
@@ -420,7 +420,7 @@ static int merge_working_tree(struct checkout_opts *opts,
                topts.update = 1;
                topts.merge = 1;
                topts.gently = opts->merge && old->commit;
-               topts.verbose_update = !opts->quiet;
+               topts.verbose_update = !opts->quiet && isatty(2);
                topts.fn = twoway_merge;
                if (opts->overwrite_ignore) {
                        topts.dir = xcalloc(1, sizeof(*topts.dir));
@@ -915,6 +915,8 @@ static int switch_unborn_to_new_branch(struct checkout_opts *opts)
        int status;
        struct strbuf branch_ref = STRBUF_INIT;
 
+       if (!opts->new_branch)
+               die(_("You are on a branch yet to be born"));
        strbuf_addf(&branch_ref, "refs/heads/%s", opts->new_branch);
        status = create_symref("HEAD", branch_ref.buf, "checkout -b");
        strbuf_release(&branch_ref);