From: Michael Haggerty <mhagger@xxxxxxxxxxxx>
Giving the function a name makes the code easier to understand.
Signed-off-by: Michael Haggerty <mhagger@xxxxxxxxxxxx>
---
refs.c | 37 +++++++++++++++++++++++++------------
1 files changed, 25 insertions(+), 12 deletions(-)
diff --git a/refs.c b/refs.c
index 2252c66..ea058c1 100644
--- a/refs.c
+++ b/refs.c
@@ -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;
}
--
1.7.8
--
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