[PATCH v2 3/4] builtin-status: configurable submodule summary size

[Ping Yin <pkufranky@gmail.com>]

Add config variable status.submodulesummary which is passed as
arg for '--summary-limit' of 'git submodule summary' to limit the
submodule summary size.

status.submodulesummary is 0 by default which disables the summary.

Signed-off-by: Ping Yin <pkufranky@gmail.com>
---
 wt-status.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/wt-status.c b/wt-status.c
index 75ee7ba..2f47e36 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -12,6 +12,7 @@
 
 int wt_status_relative_paths = 1;
 int wt_status_use_color = -1;
+int wt_status_submodule_summary = 0;
 static char wt_status_colors[][COLOR_MAXLEN] = {
 	"",         /* WT_STATUS_HEADER: normal */
 	"\033[32m", /* WT_STATUS_UPDATED: green */
@@ -222,12 +223,17 @@ static void wt_status_print_changed(struct wt_status *s)
 }
 static void wt_status_print_submodule_summary(struct wt_status *s)
 {
+	if (wt_status_submodule_summary == 0) return;
 	struct child_process sm_summary;
+	char summary_limit[64];
+	sprintf(summary_limit, "%d", wt_status_submodule_summary);
 	const char *argv[] = {
 		"submodule",
 		"summary",
 		"--cached",
 		"--for-status",
+		"--summary-limit",
+		summary_limit,
 		s->amend ? "HEAD^" : "HEAD",
 		NULL
 	};
@@ -371,6 +377,10 @@ void wt_status_print(struct wt_status *s)
 
 int git_status_config(const char *k, const char *v)
 {
+	if (!strcmp(k, "status.submodulesummary")) {
+		wt_status_submodule_summary = atoi(v);
+		return 0;
+	}
 	if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 		wt_status_use_color = git_config_colorbool(k, v, -1);
 		return 0;
-- 
1.5.4.3.347.g5314c