Add argument 'no' commit/status option -u|--untracked-files

This new argument teaches Git to not look for any untracked files,
saving cycles on slow file systems, or large repos.

Signed-off-by: Marius Storm-Olsen <marius@trolltech.com>

Documentation/git-commit.txt

@@ -157,6 +157,7 @@ The mode parameter is optional, and is used to specify
 the handling of untracked files. The possible options are:
 +
 --
+	- 'no'     - Show no untracked files
 	- 'normal' - Shows untracked files and directories
 	- 'all'    - Also shows individual files in untracked directories.
 --

builtin-commit.c

@@ -103,7 +103,7 @@ static struct option builtin_commit_options[] = {
 	OPT_BOOLEAN('o', "only", &only, "commit only specified files"),
 	OPT_BOOLEAN('n', "no-verify", &no_verify, "bypass pre-commit hook"),
 	OPT_BOOLEAN(0, "amend", &amend, "amend previous commit"),
-	{ OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, "mode", "show untracked files, optional modes: all, normal. (Default: all)", PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
+	{ OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, "mode", "show untracked files, optional modes: all, normal, no. (Default: all)", PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
 	OPT_BOOLEAN(0, "allow-empty", &allow_empty, "ok to record an empty change"),
 	OPT_STRING(0, "cleanup", &cleanup_arg, "default", "how to strip spaces and #comments from message"),
 
@@ -798,6 +798,8 @@ static int parse_and_validate_options(int argc, const char *argv[],
 
 	if (!untracked_files_arg)
 		; /* default already initialized */
+	else if (!strcmp(untracked_files_arg, "no"))
+		show_untracked_files = SHOW_NO_UNTRACKED_FILES;
 	else if (!strcmp(untracked_files_arg, "normal"))
 		show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 	else if (!strcmp(untracked_files_arg, "all"))

t/t7502-status.sh

@@ -67,6 +67,28 @@ test_expect_success 'status (2)' '
 
 '
 
+cat >expect <<EOF
+# On branch master
+# Changes to be committed:
+#   (use "git reset HEAD <file>..." to unstage)
+#
+#	new file:   dir2/added
+#
+# Changed but not updated:
+#   (use "git add <file>..." to update what will be committed)
+#
+#	modified:   dir1/modified
+#
+# Untracked files not listed (use -u option to show untracked files)
+EOF
+test_expect_success 'status -uno' '
+	mkdir dir3 &&
+	: > dir3/untracked1 &&
+	: > dir3/untracked2 &&
+	git status -uno >output &&
+	test_cmp expect output
+'
+
 cat >expect <<EOF
 # On branch master
 # Changes to be committed:
@@ -91,9 +113,6 @@ cat >expect <<EOF
 #	untracked
 EOF
 test_expect_success 'status -unormal' '
-	mkdir dir3 &&
-	: > dir3/untracked1 &&
-	: > dir3/untracked2 &&
 	git status -unormal >output &&
 	test_cmp expect output
 '

wt-status.c

@@ -348,7 +348,10 @@ void wt_status_print(struct wt_status *s)
 	wt_status_print_changed(s);
 	if (wt_status_submodule_summary)
 		wt_status_print_submodule_summary(s);
-	wt_status_print_untracked(s);
+	if (show_untracked_files)
+		wt_status_print_untracked(s);
+	else if (s->commitable)
+		 fprintf(s->fp, "# Untracked files not listed (use -u option to show untracked files)\n");
 
 	if (s->verbose && !s->is_initial)
 		wt_status_print_verbose(s);
@@ -363,6 +366,8 @@ void wt_status_print(struct wt_status *s)
 			printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 		else if (s->is_initial)
 			printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
+		else if (!show_untracked_files)
+			printf("nothing to commit (use -u to show untracked files)\n");
 		else
 			printf("nothing to commit (working directory clean)\n");
 	}

wt-status.h

@@ -12,7 +12,8 @@ enum color_wt_status {
 };
 
 enum untracked_status_type {
-	SHOW_NORMAL_UNTRACKED_FILES = 1,
+	SHOW_NO_UNTRACKED_FILES,
+	SHOW_NORMAL_UNTRACKED_FILES,
 	SHOW_ALL_UNTRACKED_FILES
 };
 extern enum untracked_status_type show_untracked_files;