show: --ignore-missing
[gitweb.git] / builtin / checkout.c
index 51ec9778525e08d04d763c0d9e9c72a070c97945..4761769512a8abcdd5652a93d39be18154e251dd 100644 (file)
@@ -79,7 +79,10 @@ static int update_some(const unsigned char *sha1, const char *base, int baselen,
 
 static int read_tree_some(struct tree *tree, const char **pathspec)
 {
-       read_tree_recursive(tree, "", 0, 0, pathspec, update_some, NULL);
+       struct pathspec ps;
+       init_pathspec(&ps, pathspec);
+       read_tree_recursive(tree, "", 0, 0, &ps, update_some, NULL);
+       free_pathspec(&ps);
 
        /* update the index with the given tree's info
         * for all args, expanding wildcards, and exit
@@ -104,9 +107,10 @@ static int check_stage(int stage, struct cache_entry *ce, int pos)
                        return 0;
                pos++;
        }
-       return error("path '%s' does not have %s version",
-                    ce->name,
-                    (stage == 2) ? "our" : "their");
+       if (stage == 2)
+               return error(_("path '%s' does not have our version"), ce->name);
+       else
+               return error(_("path '%s' does not have their version"), ce->name);
 }
 
 static int check_all_stages(struct cache_entry *ce, int pos)
@@ -117,7 +121,7 @@ static int check_all_stages(struct cache_entry *ce, int pos)
            ce_stage(active_cache[pos+1]) != 2 ||
            strcmp(active_cache[pos+2]->name, ce->name) ||
            ce_stage(active_cache[pos+2]) != 3)
-               return error("path '%s' does not have all three versions",
+               return error(_("path '%s' does not have all three versions"),
                             ce->name);
        return 0;
 }
@@ -131,9 +135,10 @@ static int checkout_stage(int stage, struct cache_entry *ce, int pos,
                        return checkout_entry(active_cache[pos], state, NULL);
                pos++;
        }
-       return error("path '%s' does not have %s version",
-                    ce->name,
-                    (stage == 2) ? "our" : "their");
+       if (stage == 2)
+               return error(_("path '%s' does not have our version"), ce->name);
+       else
+               return error(_("path '%s' does not have their version"), ce->name);
 }
 
 static int checkout_merged(int pos, struct checkout *state)
@@ -151,7 +156,7 @@ static int checkout_merged(int pos, struct checkout *state)
            ce_stage(active_cache[pos+1]) != 2 ||
            strcmp(active_cache[pos+2]->name, path) ||
            ce_stage(active_cache[pos+2]) != 3)
-               return error("path '%s' does not have all 3 versions", path);
+               return error(_("path '%s' does not have all 3 versions"), path);
 
        read_mmblob(&ancestor, active_cache[pos]->sha1);
        read_mmblob(&ours, active_cache[pos+1]->sha1);
@@ -162,13 +167,13 @@ static int checkout_merged(int pos, struct checkout *state)
         * merge.renormalize set, too
         */
        status = ll_merge(&result_buf, path, &ancestor, "base",
-                         &ours, "ours", &theirs, "theirs", 0);
+                         &ours, "ours", &theirs, "theirs", NULL);
        free(ancestor.ptr);
        free(ours.ptr);
        free(theirs.ptr);
        if (status < 0 || !result_buf.ptr) {
                free(result_buf.ptr);
-               return error("path '%s': cannot merge", path);
+               return error(_("path '%s': cannot merge"), path);
        }
 
        /*
@@ -185,12 +190,12 @@ static int checkout_merged(int pos, struct checkout *state)
         */
        if (write_sha1_file(result_buf.ptr, result_buf.size,
                            blob_type, sha1))
-               die("Unable to add merge result for '%s'", path);
+               die(_("Unable to add merge result for '%s'"), path);
        ce = make_cache_entry(create_ce_mode(active_cache[pos+1]->ce_mode),
                              sha1,
                              path, 2, 0);
        if (!ce)
-               die("make_cache_entry failed for path '%s'", path);
+               die(_("make_cache_entry failed for path '%s'"), path);
        status = checkout_entry(ce, state, NULL);
        return status;
 }
@@ -212,7 +217,7 @@ static int checkout_paths(struct tree *source_tree, const char **pathspec,
 
        newfd = hold_locked_index(lock_file, 1);
        if (read_cache_preload(pathspec) < 0)
-               return error("corrupt index file");
+               return error(_("corrupt index file"));
 
        if (source_tree)
                read_tree_some(source_tree, pathspec);
@@ -240,14 +245,14 @@ static int checkout_paths(struct tree *source_tree, const char **pathspec,
                        if (!ce_stage(ce))
                                continue;
                        if (opts->force) {
-                               warning("path '%s' is unmerged", ce->name);
+                               warning(_("path '%s' is unmerged"), ce->name);
                        } else if (stage) {
                                errs |= check_stage(stage, ce, pos);
                        } else if (opts->merge) {
                                errs |= check_all_stages(ce, pos);
                        } else {
                                errs = 1;
-                               error("path '%s' is unmerged", ce->name);
+                               error(_("path '%s' is unmerged"), ce->name);
                        }
                        pos = skip_same_name(ce, pos) - 1;
                }
@@ -276,7 +281,7 @@ static int checkout_paths(struct tree *source_tree, const char **pathspec,
 
        if (write_cache(newfd, active_cache, active_nr) ||
            commit_locked_index(lock_file))
-               die("unable to write new index file");
+               die(_("unable to write new index file"));
 
        resolve_ref("HEAD", rev, 0, &flag);
        head = lookup_commit_reference_gently(rev, 1);
@@ -293,12 +298,12 @@ static void show_local_changes(struct object *head, struct diff_options *opts)
        rev.diffopt.flags = opts->flags;
        rev.diffopt.output_format |= DIFF_FORMAT_NAME_STATUS;
        if (diff_setup_done(&rev.diffopt) < 0)
-               die("diff_setup_done failed");
+               die(_("diff_setup_done failed"));
        add_pending_object(&rev, head, NULL);
        run_diff_index(&rev, 0);
 }
 
-static void describe_detached_head(char *msg, struct commit *commit)
+static void describe_detached_head(const char *msg, struct commit *commit)
 {
        struct strbuf sb = STRBUF_INIT;
        struct pretty_print_context ctx = {0};
@@ -367,7 +372,7 @@ static int merge_working_tree(struct checkout_opts *opts,
        int newfd = hold_locked_index(lock_file, 1);
 
        if (read_cache_preload(NULL) < 0)
-               return error("corrupt index file");
+               return error(_("corrupt index file"));
 
        resolve_undo_clear();
        if (opts->force) {
@@ -389,7 +394,7 @@ static int merge_working_tree(struct checkout_opts *opts,
                refresh_cache(REFRESH_QUIET);
 
                if (unmerged_cache()) {
-                       error("you need to resolve your current index first");
+                       error(_("you need to resolve your current index first"));
                        return 1;
                }
 
@@ -405,7 +410,7 @@ static int merge_working_tree(struct checkout_opts *opts,
                topts.dir->exclude_per_dir = ".gitignore";
                tree = parse_tree_indirect(old->commit ?
                                           old->commit->object.sha1 :
-                                          (unsigned char *)EMPTY_TREE_SHA1_BIN);
+                                          EMPTY_TREE_SHA1_BIN);
                init_tree_desc(&trees[0], tree->buffer, tree->size);
                tree = parse_tree_indirect(new->commit->object.sha1);
                init_tree_desc(&trees[1], tree->buffer, tree->size);
@@ -471,7 +476,7 @@ static int merge_working_tree(struct checkout_opts *opts,
 
        if (write_cache(newfd, active_cache, active_nr) ||
            commit_locked_index(lock_file))
-               die("unable to write new index file");
+               die(_("unable to write new index file"));
 
        if (!opts->force && !opts->quiet)
                show_local_changes(&new->commit->object, &opts->diff_options);
@@ -520,7 +525,7 @@ static void update_refs_for_switch(struct checkout_opts *opts,
                                temp = log_all_ref_updates;
                                log_all_ref_updates = 1;
                                if (log_ref_setup(ref_name, log_file, sizeof(log_file))) {
-                                       fprintf(stderr, "Can not do reflog for '%s'\n",
+                                       fprintf(stderr, _("Can not do reflog for '%s'\n"),
                                            opts->new_orphan_branch);
                                        log_all_ref_updates = temp;
                                        return;
@@ -542,19 +547,31 @@ static void update_refs_for_switch(struct checkout_opts *opts,
        strbuf_addf(&msg, "checkout: moving from %s to %s",
                    old_desc ? old_desc : "(invalid)", new->name);
 
-       if (new->path) {
+       if (!strcmp(new->name, "HEAD") && !new->path && !opts->force_detach) {
+               /* Nothing to do. */
+       } else if (opts->force_detach || !new->path) {  /* No longer on any branch. */
+               update_ref(msg.buf, "HEAD", new->commit->object.sha1, NULL,
+                          REF_NODEREF, DIE_ON_ERR);
+               if (!opts->quiet) {
+                       if (old->path && advice_detached_head)
+                               detach_advice(old->path, new->name);
+                       describe_detached_head(_("HEAD is now at"), new->commit);
+               }
+       } else if (new->path) { /* Switch branches. */
                create_symref("HEAD", new->path, msg.buf);
                if (!opts->quiet) {
-                       if (old->path && !strcmp(new->path, old->path))
-                               fprintf(stderr, "Already on '%s'\n",
-                                       new->name);
-                       else if (opts->new_branch)
-                               fprintf(stderr, "Switched to%s branch '%s'\n",
-                                       opts->branch_exists ? " and reset" : " a new",
+                       if (old->path && !strcmp(new->path, old->path)) {
+                               fprintf(stderr, _("Already on '%s'\n"),
                                        new->name);
-                       else
-                               fprintf(stderr, "Switched to branch '%s'\n",
+                       } else if (opts->new_branch) {
+                               if (opts->branch_exists)
+                                       fprintf(stderr, _("Switched to and reset branch '%s'\n"), new->name);
+                               else
+                                       fprintf(stderr, _("Switched to a new branch '%s'\n"), new->name);
+                       } else {
+                               fprintf(stderr, _("Switched to branch '%s'\n"),
                                        new->name);
+                       }
                }
                if (old->path && old->name) {
                        char log_file[PATH_MAX], ref_file[PATH_MAX];
@@ -564,14 +581,6 @@ static void update_refs_for_switch(struct checkout_opts *opts,
                        if (!file_exists(ref_file) && file_exists(log_file))
                                remove_path(log_file);
                }
-       } else if (opts->force_detach || strcmp(new->name, "HEAD")) {
-               update_ref(msg.buf, "HEAD", new->commit->object.sha1, NULL,
-                          REF_NODEREF, DIE_ON_ERR);
-               if (!opts->quiet) {
-                       if (old->path && advice_detached_head)
-                               detach_advice(old->path, new->name);
-                       describe_detached_head("HEAD is now at", new->commit);
-               }
        }
        remove_branch_state();
        strbuf_release(&msg);
@@ -580,6 +589,128 @@ static void update_refs_for_switch(struct checkout_opts *opts,
                report_tracking(new);
 }
 
+struct rev_list_args {
+       int argc;
+       int alloc;
+       const char **argv;
+};
+
+static void add_one_rev_list_arg(struct rev_list_args *args, const char *s)
+{
+       ALLOC_GROW(args->argv, args->argc + 1, args->alloc);
+       args->argv[args->argc++] = s;
+}
+
+static int add_one_ref_to_rev_list_arg(const char *refname,
+                                      const unsigned char *sha1,
+                                      int flags,
+                                      void *cb_data)
+{
+       add_one_rev_list_arg(cb_data, refname);
+       return 0;
+}
+
+static int clear_commit_marks_from_one_ref(const char *refname,
+                                     const unsigned char *sha1,
+                                     int flags,
+                                     void *cb_data)
+{
+       struct commit *commit = lookup_commit_reference_gently(sha1, 1);
+       if (commit)
+               clear_commit_marks(commit, -1);
+       return 0;
+}
+
+static void describe_one_orphan(struct strbuf *sb, struct commit *commit)
+{
+       struct pretty_print_context ctx = { 0 };
+
+       parse_commit(commit);
+       strbuf_addstr(sb, "  ");
+       strbuf_addstr(sb,
+               find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV));
+       strbuf_addch(sb, ' ');
+       pretty_print_commit(CMIT_FMT_ONELINE, commit, sb, &ctx);
+       strbuf_addch(sb, '\n');
+}
+
+#define ORPHAN_CUTOFF 4
+static void suggest_reattach(struct commit *commit, struct rev_info *revs)
+{
+       struct commit *c, *last = NULL;
+       struct strbuf sb = STRBUF_INIT;
+       int lost = 0;
+       while ((c = get_revision(revs)) != NULL) {
+               if (lost < ORPHAN_CUTOFF)
+                       describe_one_orphan(&sb, c);
+               last = c;
+               lost++;
+       }
+       if (ORPHAN_CUTOFF < lost) {
+               int more = lost - ORPHAN_CUTOFF;
+               if (more == 1)
+                       describe_one_orphan(&sb, last);
+               else
+                       strbuf_addf(&sb, _(" ... and %d more.\n"), more);
+       }
+
+       fprintf(stderr,
+               Q_(
+               /* The singular version */
+               "Warning: you are leaving %d commit behind, "
+               "not connected to\n"
+               "any of your branches:\n\n"
+               "%s\n"
+               "If you want to keep it by creating a new branch, "
+               "this may be a good time\nto do so with:\n\n"
+               " git branch new_branch_name %s\n\n",
+               /* The plural version */
+               "Warning: you are leaving %d commits behind, "
+               "not connected to\n"
+               "any of your branches:\n\n"
+               "%s\n"
+               "If you want to keep them by creating a new branch, "
+               "this may be a good time\nto do so with:\n\n"
+               " git branch new_branch_name %s\n\n",
+               /* Give ngettext() the count */
+               lost),
+               lost,
+               sb.buf,
+               sha1_to_hex(commit->object.sha1));
+       strbuf_release(&sb);
+}
+
+/*
+ * We are about to leave commit that was at the tip of a detached
+ * HEAD.  If it is not reachable from any ref, this is the last chance
+ * for the user to do so without resorting to reflog.
+ */
+static void orphaned_commit_warning(struct commit *commit)
+{
+       struct rev_list_args args = { 0, 0, NULL };
+       struct rev_info revs;
+
+       add_one_rev_list_arg(&args, "(internal)");
+       add_one_rev_list_arg(&args, sha1_to_hex(commit->object.sha1));
+       add_one_rev_list_arg(&args, "--not");
+       for_each_ref(add_one_ref_to_rev_list_arg, &args);
+       add_one_rev_list_arg(&args, "--");
+       add_one_rev_list_arg(&args, NULL);
+
+       init_revisions(&revs, NULL);
+       if (setup_revisions(args.argc - 1, args.argv, &revs, NULL) != 1)
+               die(_("internal error: only -- alone should have been left"));
+       if (prepare_revision_walk(&revs))
+               die(_("internal error in revision walk"));
+       if (!(commit->object.flags & UNINTERESTING))
+               suggest_reattach(commit, &revs);
+       else
+               describe_detached_head(_("Previous HEAD position was"), commit);
+
+       clear_commit_marks(commit, -1);
+       for_each_ref(clear_commit_marks_from_one_ref, NULL);
+}
+
 static int switch_branches(struct checkout_opts *opts, struct branch_info *new)
 {
        int ret = 0;
@@ -599,7 +730,7 @@ static int switch_branches(struct checkout_opts *opts, struct branch_info *new)
                new->name = "HEAD";
                new->commit = old.commit;
                if (!new->commit)
-                       die("You are on a branch yet to be born");
+                       die(_("You are on a branch yet to be born"));
                parse_commit(new->commit);
        }
 
@@ -607,13 +738,8 @@ static int switch_branches(struct checkout_opts *opts, struct branch_info *new)
        if (ret)
                return ret;
 
-       /*
-        * If we were on a detached HEAD, but have now moved to
-        * a new commit, we want to mention the old commit once more
-        * to remind the user that it might be lost.
-        */
        if (!opts->quiet && !old.path && old.commit && new->commit != old.commit)
-               describe_detached_head("Previous HEAD position was", old.commit);
+               orphaned_commit_warning(old.commit);
 
        update_refs_for_switch(opts, &old, new);
 
@@ -679,7 +805,6 @@ static const char *unique_tracking_name(const char *name)
 
 static int parse_branchname_arg(int argc, const char **argv,
                                int dwim_new_local_branch_ok,
-                               int force_detach,
                                struct branch_info *new,
                                struct tree **source_tree,
                                unsigned char rev[20],
@@ -711,7 +836,7 @@ static int parse_branchname_arg(int argc, const char **argv,
         *   With no paths, if <something> is _not_ a commit, no -t nor -b
         *   was given, and there is a tracking branch whose name is
         *   <something> in one and only one remote, then this is a short-hand
-        *   to fork local <something> from that remote tracking branch.
+        *   to fork local <something> from that remote-tracking branch.
         *
         *   Otherwise <something> shall not be ambiguous.
         *   - If it's *only* a reference, treat it like case (1).
@@ -733,7 +858,7 @@ static int parse_branchname_arg(int argc, const char **argv,
 
        if (get_sha1_mb(arg, rev)) {
                if (has_dash_dash)          /* case (1) */
-                       die("invalid reference: %s", arg);
+                       die(_("invalid reference: %s"), arg);
                if (dwim_new_local_branch_ok &&
                    !check_filename(NULL, arg) &&
                    argc == 1) {
@@ -756,8 +881,7 @@ static int parse_branchname_arg(int argc, const char **argv,
        new->name = arg;
        setup_branch_path(new);
 
-       if (!force_detach &&
-           check_ref_format(new->path) == CHECK_REF_FORMAT_OK &&
+       if (check_ref_format(new->path) == CHECK_REF_FORMAT_OK &&
            resolve_ref(new->path, branch_rev, 1, NULL))
                hashcpy(rev, branch_rev);
        else
@@ -773,7 +897,7 @@ static int parse_branchname_arg(int argc, const char **argv,
        }
 
        if (!*source_tree)                   /* case (1): want a tree */
-               die("reference is not a tree: %s", arg);
+               die(_("reference is not a tree: %s"), arg);
        if (!has_dash_dash) {/* case (3 -> 1) */
                /*
                 * Do not complain the most common case
@@ -802,7 +926,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
        int patch_mode = 0;
        int dwim_new_local_branch = 1;
        struct option options[] = {
-               OPT__QUIET(&opts.quiet),
+               OPT__QUIET(&opts.quiet, "suppress progress reporting"),
                OPT_STRING('b', NULL, &opts.new_branch, "branch",
                           "create and checkout a new branch"),
                OPT_STRING('B', NULL, &opts.new_branch_force, "branch",
@@ -816,7 +940,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
                            2),
                OPT_SET_INT('3', "theirs", &opts.writeout_stage, "checkout their version for unmerged files",
                            3),
-               OPT_BOOLEAN('f', "force", &opts.force, "force checkout (throw away local modifications)"),
+               OPT__FORCE(&opts.force, "force checkout (throw away local modifications)"),
                OPT_BOOLEAN('m', "merge", &opts.merge, "perform a 3-way merge with the new branch"),
                OPT_STRING(0, "conflict", &conflict_style, "style",
                           "conflict style (merge or diff3)"),
@@ -840,7 +964,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
 
        /* we can assume from now on new_branch = !new_branch_force */
        if (opts.new_branch && opts.new_branch_force)
-               die("-B cannot be used with -b");
+               die(_("-B cannot be used with -b"));
 
        /* copy -B over to -b, so that we can just check the latter */
        if (opts.new_branch_force)
@@ -849,33 +973,33 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
        if (patch_mode && (opts.track > 0 || opts.new_branch
                           || opts.new_branch_log || opts.merge || opts.force
                           || opts.force_detach))
-               die ("--patch is incompatible with all other options");
+               die (_("--patch is incompatible with all other options"));
 
        if (opts.force_detach && (opts.new_branch || opts.new_orphan_branch))
-               die("--detach cannot be used with -b/-B/--orphan");
+               die(_("--detach cannot be used with -b/-B/--orphan"));
        if (opts.force_detach && 0 < opts.track)
-               die("--detach cannot be used with -t");
+               die(_("--detach cannot be used with -t"));
 
        /* --track without -b should DWIM */
        if (0 < opts.track && !opts.new_branch) {
                const char *argv0 = argv[0];
                if (!argc || !strcmp(argv0, "--"))
-                       die ("--track needs a branch name");
+                       die (_("--track needs a branch name"));
                if (!prefixcmp(argv0, "refs/"))
                        argv0 += 5;
                if (!prefixcmp(argv0, "remotes/"))
                        argv0 += 8;
                argv0 = strchr(argv0, '/');
                if (!argv0 || !argv0[1])
-                       die ("Missing branch name; try -b");
+                       die (_("Missing branch name; try -b"));
                opts.new_branch = argv0 + 1;
        }
 
        if (opts.new_orphan_branch) {
                if (opts.new_branch)
-                       die("--orphan and -b|-B are mutually exclusive");
+                       die(_("--orphan and -b|-B are mutually exclusive"));
                if (opts.track > 0)
-                       die("--orphan cannot be used with -t");
+                       die(_("--orphan cannot be used with -t"));
                opts.new_branch = opts.new_orphan_branch;
        }
 
@@ -885,7 +1009,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
        }
 
        if (opts.force && opts.merge)
-               die("git checkout: -f and -m are incompatible");
+               die(_("git checkout: -f and -m are incompatible"));
 
        /*
         * Extract branch name from command line arguments, so
@@ -906,8 +1030,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
                        dwim_new_local_branch &&
                        opts.track == BRANCH_TRACK_UNSPECIFIED &&
                        !opts.new_branch;
-               int n = parse_branchname_arg(argc, argv,
-                               dwim_ok, opts.force_detach,
+               int n = parse_branchname_arg(argc, argv, dwim_ok,
                                &new, &source_tree, rev, &opts.new_branch);
                argv += n;
                argc -= n;
@@ -920,7 +1043,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
                const char **pathspec = get_pathspec(prefix, argv);
 
                if (!pathspec)
-                       die("invalid path specification");
+                       die(_("invalid path specification"));
 
                if (patch_mode)
                        return interactive_checkout(new.name, pathspec, &opts);
@@ -928,17 +1051,17 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
                /* Checkout paths */
                if (opts.new_branch) {
                        if (argc == 1) {
-                               die("git checkout: updating paths is incompatible with switching branches.\nDid you intend to checkout '%s' which can not be resolved as commit?", argv[0]);
+                               die(_("git checkout: updating paths is incompatible with switching branches.\nDid you intend to checkout '%s' which can not be resolved as commit?"), argv[0]);
                        } else {
-                               die("git checkout: updating paths is incompatible with switching branches.");
+                               die(_("git checkout: updating paths is incompatible with switching branches."));
                        }
                }
 
                if (opts.force_detach)
-                       die("git checkout: --detach does not take a path argument");
+                       die(_("git checkout: --detach does not take a path argument"));
 
                if (1 < !!opts.writeout_stage + !!opts.force + !!opts.merge)
-                       die("git checkout: --ours/--theirs, --force and --merge are incompatible when\nchecking out of the index.");
+                       die(_("git checkout: --ours/--theirs, --force and --merge are incompatible when\nchecking out of the index."));
 
                return checkout_paths(source_tree, pathspec, &opts);
        }
@@ -949,22 +1072,22 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
        if (opts.new_branch) {
                struct strbuf buf = STRBUF_INIT;
                if (strbuf_check_branch_ref(&buf, opts.new_branch))
-                       die("git checkout: we do not like '%s' as a branch name.",
+                       die(_("git checkout: we do not like '%s' as a branch name."),
                            opts.new_branch);
                if (!get_sha1(buf.buf, rev)) {
                        opts.branch_exists = 1;
                        if (!opts.new_branch_force)
-                               die("git checkout: branch %s already exists",
+                               die(_("git checkout: branch %s already exists"),
                                    opts.new_branch);
                }
                strbuf_release(&buf);
        }
 
        if (new.name && !new.commit) {
-               die("Cannot switch branch to a non-commit.");
+               die(_("Cannot switch branch to a non-commit."));
        }
        if (opts.writeout_stage)
-               die("--ours/--theirs is incompatible with switching branches.");
+               die(_("--ours/--theirs is incompatible with switching branches."));
 
        return switch_branches(&opts, &new);
 }