config: add git_config_get_max_percent_split_change()

This new function will be used in a following commit to get the
value of the "splitIndex.maxPercentChange" config variable.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/config.c b/config.c
index 421e8c9da6..cf212785bb 100644
--- a/config.c
+++ b/config.c
@@ -1719,6 +1719,21 @@ int git_config_get_split_index(void)
 	return -1; /* default value */
 }
 
+int git_config_get_max_percent_split_change(void)
+{
+	int val = -1;
+
+	if (!git_config_get_int("splitindex.maxpercentchange", &val)) {
+		if (0 <= val && val <= 100)
+			return val;
+
+		return error(_("splitIndex.maxPercentChange value '%d' "
+			       "should be between 0 and 100"), val);
+	}
+
+	return -1; /* default value */
+}
+
 NORETURN
 void git_die_config_linenr(const char *key, const char *filename, int linenr)
 {