git-commit.sh: convert run_status to a C builtin

This creates a new git-runstatus which should do roughly the same thing
as the run_status function from git-commit.sh. Except for color support,
the main focus has been to keep the output identical, so that it can be
verified as correct and then used as a C platform for other improvements to
the status printing code.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>

1 files changed, 34 insertions, 0 deletions

diff --git a/builtin-runstatus.c b/builtin-runstatus.c
new file mode 100644
index 0000000000..7979d61291
--- /dev/null
+++ b/builtin-runstatus.c
@@ -0,0 +1,34 @@
+#include "wt-status.h"
+#include "cache.h"
+
+extern int wt_status_use_color;
+
+static const char runstatus_usage[] =
+"git-runstatus [--color|--nocolor] [--amend] [--verbose]";
+
+int cmd_runstatus(int argc, const char **argv, const char *prefix)
+{
+	struct wt_status s;
+	int i;
+
+	git_config(git_status_config);
+	wt_status_prepare(&s);
+
+	for (i = 1; i < argc; i++) {
+		if (!strcmp(argv[i], "--color"))
+			wt_status_use_color = 1;
+		else if (!strcmp(argv[i], "--nocolor"))
+			wt_status_use_color = 0;
+		else if (!strcmp(argv[i], "--amend")) {
+			s.amend = 1;
+			s.reference = "HEAD^1";
+		}
+		else if (!strcmp(argv[i], "--verbose"))
+			s.verbose = 1;
+		else
+			usage(runstatus_usage);
+	}
+
+	wt_status_print(&s);
+	return s.commitable ? 0 : 1;
+}