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-rw-r--r--pack-write.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/pack-write.c b/pack-write.c
index 9cd3bfbb4b..f84adde3eb 100644
--- a/pack-write.c
+++ b/pack-write.c
@@ -129,6 +129,10 @@ const char *write_idx_file(const char *index_name, struct pack_idx_entry **objec
}
sha1write(f, obj->sha1, 20);
git_SHA1_Update(&ctx, obj->sha1, 20);
+ if ((opts->flags & WRITE_IDX_STRICT) &&
+ (i && !hashcmp(list[-2]->sha1, obj->sha1)))
+ die("The same object %s appears twice in the pack",
+ sha1_to_hex(obj->sha1));
}
if (index_version >= 2) {