diff options
Diffstat (limited to 'index-pack.c')
| -rw-r--r-- | index-pack.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/index-pack.c b/index-pack.c index d4ce3af58..541d7bc1c 100644 --- a/index-pack.c +++ b/index-pack.c @@ -352,18 +352,24 @@ static int sha1_compare(const void *_a, const void *_b) static void write_index_file(const char *index_name, unsigned char *sha1) { struct sha1file *f; - struct object_entry **sorted_by_sha = - xcalloc(nr_objects, sizeof(struct object_entry *)); - struct object_entry **list = sorted_by_sha; - struct object_entry **last = sorted_by_sha + nr_objects; + struct object_entry **sorted_by_sha, **list, **last; unsigned int array[256]; int i; SHA_CTX ctx; - for (i = 0; i < nr_objects; ++i) - sorted_by_sha[i] = &objects[i]; - qsort(sorted_by_sha, nr_objects, sizeof(sorted_by_sha[0]), - sha1_compare); + if (nr_objects) { + sorted_by_sha = + xcalloc(nr_objects, sizeof(struct object_entry *)); + list = sorted_by_sha; + last = sorted_by_sha + nr_objects; + for (i = 0; i < nr_objects; ++i) + sorted_by_sha[i] = &objects[i]; + qsort(sorted_by_sha, nr_objects, sizeof(sorted_by_sha[0]), + sha1_compare); + + } + else + sorted_by_sha = list = last = NULL; unlink(index_name); f = sha1create("%s", index_name); |