config: add CONFIG_ERROR_SILENT handler

We can currently die() or error(), but there's not yet any
way for callers to ask us just to quietly return an error.
Let's give them one.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/config.c b/config.c
index a1d445ecbf..ce02ceaf98 100644
--- a/config.c
+++ b/config.c
@@ -818,6 +818,9 @@ static int git_parse_source(config_fn_t fn, void *data,
 	case CONFIG_ERROR_ERROR:
 		error_return = error("%s", error_msg);
 		break;
+	case CONFIG_ERROR_SILENT:
+		error_return = -1;
+		break;
 	case CONFIG_ERROR_UNSET:
 		BUG("config error action unset");
 	}