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-rw-r--r--builtin-diff.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/builtin-diff.c b/builtin-diff.c
index a6590205e8..12d11f0c55 100644
--- a/builtin-diff.c
+++ b/builtin-diff.c
@@ -56,6 +56,10 @@ static int builtin_diff_files(struct rev_info *revs,
if (revs->max_count < 0 &&
(revs->diffopt.output_format & DIFF_FORMAT_PATCH))
revs->combine_merges = revs->dense_combined_merges = 1;
+ if (read_cache() < 0) {
+ perror("read_cache");
+ return -1;
+ }
return run_diff_files(revs, silent);
}
@@ -151,6 +155,10 @@ static int builtin_diff_index(struct rev_info *revs,
revs->max_count != -1 || revs->min_age != -1 ||
revs->max_age != -1)
usage(builtin_diff_usage);
+ if (read_cache() < 0) {
+ perror("read_cache");
+ return -1;
+ }
return run_diff_index(revs, cached);
}