bisect: automatically sort sha1_array if needed when looking it up

This makes sha1_array easier to use, so later patches will be simpler.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/bisect.c b/bisect.c
index 77edeca..d2a34d1 100644 (file)
--- a/bisect.c
+++ b/bisect.c
@@ -13,6 +13,7 @@ struct sha1_array {
        unsigned char (*sha1)[20];
        int sha1_nr;
        int sha1_alloc;
+       int sorted;
 };
 
 static struct sha1_array good_revs;
@@ -487,6 +488,8 @@ static int array_cmp(const void *a, const void *b)
 static void sort_sha1_array(struct sha1_array *array)
 {
        qsort(array->sha1, array->sha1_nr, sizeof(*array->sha1), array_cmp);
+
+       array->sorted = 1;
 }
 
 static const unsigned char *sha1_access(size_t index, void *table)
@@ -498,6 +501,9 @@ static const unsigned char *sha1_access(size_t index, void *table)
 static int lookup_sha1_array(struct sha1_array *array,
                             const unsigned char *sha1)
 {
+       if (!array->sorted)
+               sort_sha1_array(array);
+
        return sha1_pos(sha1, array->sha1, array->sha1_nr, sha1_access);
 }
 
@@ -512,8 +518,6 @@ struct commit_list *filter_skipped(struct commit_list *list,
        if (!skipped_revs.sha1_nr)
                return list;
 
-       sort_sha1_array(&skipped_revs);
-
        while (list) {
                struct commit_list *next = list->next;
                list->next = NULL;