pickaxe: factor out has_changes

Move duplicate if/else construct into its own helper function.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/diffcore-pickaxe.c b/diffcore-pickaxe.c
index c367d8d17afb966830aa5e88451fcef4ea103da7..4347ec10849bdc7b8bb73badd3c0ccbccd6874b5 100644 (file)
--- a/diffcore-pickaxe.c
+++ b/diffcore-pickaxe.c
@@ -190,13 +190,31 @@ static unsigned int contains(struct diff_filespec *one,
        return cnt;
 }
 
+static int has_changes(struct diff_filepair *p, const char *needle,
+                      unsigned long len, regex_t *regexp, kwset_t kws)
+{
+       if (!DIFF_FILE_VALID(p->one)) {
+               if (!DIFF_FILE_VALID(p->two))
+                       return 0; /* ignore unmerged */
+               /* created */
+               return contains(p->two, needle, len, regexp, kws) != 0;
+       }
+       if (!DIFF_FILE_VALID(p->two))
+               return contains(p->one, needle, len, regexp, kws) != 0;
+       if (!diff_unmodified_pair(p)) {
+               return contains(p->one, needle, len, regexp, kws) !=
+                      contains(p->two, needle, len, regexp, kws);
+       }
+       return 0;
+}
+
 static void diffcore_pickaxe_count(struct diff_options *o)
 {
        const char *needle = o->pickaxe;
        int opts = o->pickaxe_opts;
        struct diff_queue_struct *q = &diff_queued_diff;
        unsigned long len = strlen(needle);
-       int i, has_changes;
+       int i;
        regex_t regex, *regexp = NULL;
        kwset_t kws = NULL;
        struct diff_queue_struct outq;
@@ -223,22 +241,7 @@ static void diffcore_pickaxe_count(struct diff_options *o)
                /* Showing the whole changeset if needle exists */
                for (i = 0; i < q->nr; i++) {
                        struct diff_filepair *p = q->queue[i];
-                       if (!DIFF_FILE_VALID(p->one)) {
-                               if (!DIFF_FILE_VALID(p->two))
-                                       continue; /* ignore unmerged */
-                               /* created */
-                               if (contains(p->two, needle, len, regexp, kws))
-                                       has_changes++;
-                       }
-                       else if (!DIFF_FILE_VALID(p->two)) {
-                               if (contains(p->one, needle, len, regexp, kws))
-                                       has_changes++;
-                       }
-                       else if (!diff_unmodified_pair(p) &&
-                                contains(p->one, needle, len, regexp, kws) !=
-                                contains(p->two, needle, len, regexp, kws))
-                               has_changes++;
-                       if (has_changes)
+                       if (has_changes(p, needle, len, regexp, kws))
                                goto out; /* do not munge the queue */
                }
 
@@ -254,25 +257,7 @@ static void diffcore_pickaxe_count(struct diff_options *o)
                /* Showing only the filepairs that has the needle */
                for (i = 0; i < q->nr; i++) {
                        struct diff_filepair *p = q->queue[i];
-                       has_changes = 0;
-                       if (!DIFF_FILE_VALID(p->one)) {
-                               if (!DIFF_FILE_VALID(p->two))
-                                       ; /* ignore unmerged */
-                               /* created */
-                               else if (contains(p->two, needle, len, regexp,
-                                                 kws))
-                                       has_changes = 1;
-                       }
-                       else if (!DIFF_FILE_VALID(p->two)) {
-                               if (contains(p->one, needle, len, regexp, kws))
-                                       has_changes = 1;
-                       }
-                       else if (!diff_unmodified_pair(p) &&
-                                contains(p->one, needle, len, regexp, kws) !=
-                                contains(p->two, needle, len, regexp, kws))
-                               has_changes = 1;
-
-                       if (has_changes)
+                       if (has_changes(p, needle, len, regexp, kws))
                                diff_q(&outq, p);
                        else
                                diff_free_filepair(p);