diff options
| -rw-r--r-- | refs.c | 37 |
1 files changed, 25 insertions, 12 deletions
@@ -84,9 +84,28 @@ static int ref_entry_cmp(const void *a, const void *b) return strcmp(one->name, two->name); } +/* + * Emit a warning and return true iff ref1 and ref2 have the same name + * and the same sha1. Die if they have the same name but different + * sha1s. + */ +static int is_dup_ref(const struct ref_entry *ref1, const struct ref_entry *ref2) +{ + if (!strcmp(ref1->name, ref2->name)) { + /* Duplicate name; make sure that the SHA1s match: */ + if (hashcmp(ref1->sha1, ref2->sha1)) + die("Duplicated ref, and SHA1s don't match: %s", + ref1->name); + warning("Duplicated ref: %s", ref1->name); + return 1; + } else { + return 0; + } +} + static void sort_ref_array(struct ref_array *array) { - int i = 0, j = 1; + int i, j; /* Nothing to sort unless there are at least two entries */ if (array->nr < 2) @@ -95,19 +114,13 @@ static void sort_ref_array(struct ref_array *array) qsort(array->refs, array->nr, sizeof(*array->refs), ref_entry_cmp); /* Remove any duplicates from the ref_array */ - for (; j < array->nr; j++) { - struct ref_entry *a = array->refs[i]; - struct ref_entry *b = array->refs[j]; - if (!strcmp(a->name, b->name)) { - if (hashcmp(a->sha1, b->sha1)) - die("Duplicated ref, and SHA1s don't match: %s", - a->name); - warning("Duplicated ref: %s", a->name); - free(b); + i = 0; + for (j = 1; j < array->nr; j++) { + if (is_dup_ref(array->refs[i], array->refs[j])) { + free(array->refs[j]); continue; } - i++; - array->refs[i] = array->refs[j]; + array->refs[++i] = array->refs[j]; } array->nr = i + 1; } |