Provide git_config with a callback-data parameter

git_config() only had a function parameter, but no callback data
parameter.  This assumes that all callback functions only modify
global variables.

With this patch, every callback gets a void * parameter, and it is hoped
that this will help the libification effort.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/var.c b/var.c
index c20ac919b..724ba87a7 100644
--- a/var.c
+++ b/var.c
@@ -39,13 +39,13 @@ static const char *read_var(const char *var)
 	return val;
 }
 
-static int show_config(const char *var, const char *value)
+static int show_config(const char *var, const char *value, void *cb)
 {
 	if (value)
 		printf("%s=%s\n", var, value);
 	else
 		printf("%s\n", var);
-	return git_default_config(var, value);
+	return git_default_config(var, value, cb);
 }
 
 int main(int argc, char **argv)
@@ -60,11 +60,11 @@ int main(int argc, char **argv)
 	val = NULL;
 
 	if (strcmp(argv[1], "-l") == 0) {
-		git_config(show_config);
+		git_config(show_config, NULL);
 		list_vars();
 		return 0;
 	}
-	git_config(git_default_config);
+	git_config(git_default_config, NULL);
 	val = read_var(argv[1]);
 	if (!val)
 		usage(var_usage);