[PATCH 3/7] stage: add 'add' subcommand

@@ -3,21 +3,30 @@ git-stage(1)
 
 NAME
 ----
-git-stage - Add file contents to the staging area
+git-stage - Manage the staging area
 
 
 SYNOPSIS
 --------
 [verse]
 'git stage' [options] [--] [<paths>...]
+'git stage' (-a | --add) [options] [--] [<paths>...]
 
 
 DESCRIPTION
 -----------
 
-The staging area is a location where changes are stored in preparation for a commit.
+This command is useful to manage the staging area which is a location where
+changes are stored in preparation for a commit.
+
+Without arguments it's a synonym for linkgit:git-add[1].
+
+OPTIONS
+-------
+-a::
+--add::
+	Add changes to the staging area. See linkgit:git-add[1].
 
-This is a synonym for linkgit:git-add[1].
 
 SEE ALSO
 --------

@@ -8,6 +8,7 @@
 
 static const char *const stage_usage[] = {
 	N_("git stage [options] [--] <paths>..."),
+	N_("git stage --add [options] [--] <paths>..."),
 	NULL
 };
 

@@ -34,7 +35,10 @@ static int rerun(int argc, const char **argv, ...)
 
 int cmd_stage(int argc, const char **argv, const char *prefix)
 {
+	int add = 0;
+
 	struct option options[] = {
+		OPT_BOOL_F('a', "add", &add, N_("add changes"), PARSE_OPT_NONEG),
 		OPT_END()
 	};
 

@@ -2376,6 +2376,11 @@ _git_send_email ()
 
 _git_stage ()
 {
+	if [[ "$cur" == --* ]]; then
+		__gitcomp_builtin stage
+		return
+	fi
+
 	_git_add
 }
 

@@ -17,4 +17,10 @@ test_expect_success 'basic' '
 	in_stage foo
 '
 
+test_expect_success 'add' '
+	touch bar &&
+	git stage --add bar &&
+	in_stage bar
+'
+
 test_done