sha1-name.c: remove implicit dependency on the_index

diff --git a/builtin/checkout.c b/builtin/checkout.c
index 169e7976752be3c161388084bf6aaf46338cc299..1b672a9fd916f4271d644ed8d73c04c75b98aa4e 100644 (file)
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -284,7 +284,7 @@ static int checkout_paths(const struct checkout_opts *opts,
                return run_add_interactive(revision, "--patch=checkout",
                                           &opts->pathspec);
 
-       hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR);
+       repo_hold_locked_index(the_repository, &lock_file, LOCK_DIE_ON_ERROR);
        if (read_cache_preload(&opts->pathspec) < 0)
                return error(_("index file corrupt"));
 
@@ -1080,9 +1080,12 @@ static int parse_branchname_arg(int argc, const char **argv,
                 */
                int recover_with_dwim = dwim_new_local_branch_ok;
 
-               if (!has_dash_dash &&
-                   (check_filename(opts->prefix, arg) || !no_wildcard(arg)))
+               int could_be_checkout_paths = !has_dash_dash &&
+                       check_filename(opts->prefix, arg);
+
+               if (!has_dash_dash && !no_wildcard(arg))
                        recover_with_dwim = 0;
+
                /*
                 * Accept "git checkout foo" and "git checkout foo --"
                 * as candidates for dwim.
@@ -1095,6 +1098,10 @@ static int parse_branchname_arg(int argc, const char **argv,
                        const char *remote = unique_tracking_name(arg, rev,
                                                                  dwim_remotes_matched);
                        if (remote) {
+                               if (could_be_checkout_paths)
+                                       die(_("'%s' could be both a local file and a tracking branch.\n"
+                                             "Please use -- (and optionally --no-guess) to disambiguate"),
+                                           arg);
                                *new_branch = arg;
                                arg = remote;
                                /* DWIMmed to create local branch, case (3).(b) */
@@ -1229,7 +1236,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
        struct checkout_opts opts;
        struct branch_info new_branch_info;
        char *conflict_style = NULL;
-       int dwim_new_local_branch = 1;
+       int dwim_new_local_branch, no_dwim_new_local_branch = 0;
        int dwim_remotes_matched = 0;
        struct option options[] = {
                OPT__QUIET(&opts.quiet, N_("suppress progress reporting")),
@@ -1259,8 +1266,8 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
                OPT_BOOL('p', "patch", &opts.patch_mode, N_("select hunks interactively")),
                OPT_BOOL(0, "ignore-skip-worktree-bits", &opts.ignore_skipworktree,
                         N_("do not limit pathspecs to sparse entries only")),
-               OPT_HIDDEN_BOOL(0, "guess", &dwim_new_local_branch,
-                               N_("second guess 'git checkout <no-such-branch>'")),
+               OPT_BOOL(0, "no-guess", &no_dwim_new_local_branch,
+                        N_("do not second guess 'git checkout <no-such-branch>'")),
                OPT_BOOL(0, "ignore-other-worktrees", &opts.ignore_other_worktrees,
                         N_("do not check if another worktree is holding the given ref")),
                { OPTION_CALLBACK, 0, "recurse-submodules", NULL,
@@ -1283,6 +1290,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
        argc = parse_options(argc, argv, prefix, options, checkout_usage,
                             PARSE_OPT_KEEP_DASHDASH);
 
+       dwim_new_local_branch = !no_dwim_new_local_branch;
        if (opts.show_progress < 0) {
                if (opts.quiet)
                        opts.show_progress = 0;