[PATCH] Silent flag for show-diff
This patch adds a -s flag for show-diff, which will surpress the
actual diffing. This is useful for my scripts when they just want
to see what needs to be updated in the cache.
Signed-off-by: Petr Baudis <pasky@ucw.cz>
diff --git a/show-diff.c b/show-diff.c
index 9f82c05..bc3791a 100644
--- a/show-diff.c
+++ b/show-diff.c
@@ -57,9 +57,18 @@
int main(int argc, char **argv)
{
+ int silent = 0;
int entries = read_cache();
int i;
+ while (argc-- > 1) {
+ if (!strcmp(argv[1], "-s")) {
+ silent = 1;
+ continue;
+ }
+ usage("show-diff [-s]");
+ }
+
if (entries < 0) {
perror("read_cache");
exit(1);
@@ -74,7 +83,7 @@
if (stat(ce->name, &st) < 0) {
printf("%s: %s\n", ce->name, strerror(errno));
- if (errno == ENOENT)
+ if (errno == ENOENT && !silent)
show_diff_empty(ce);
continue;
}
@@ -86,6 +95,9 @@
printf("%02x", ce->sha1[n]);
printf("\n");
fflush(stdout);
+ if (silent)
+ continue;
+
new = read_sha1_file(ce->sha1, type, &size);
show_differences(ce->name, new, size);
free(new);
