Merge branch 'jc/maint-apply-no-double-patch' into maint

* jc/maint-apply-no-double-patch:
  apply: do not patch lines that were already patched

diff --git a/builtin/apply.c b/builtin/apply.c
index 14951daedffa9e8a8a913eee5e8423220e86e291..04f56f850a430cc0f132b6ad38018760eb68a77b 100644 (file)
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -204,6 +204,7 @@ struct line {
        unsigned hash : 24;
        unsigned flag : 8;
 #define LINE_COMMON     1
+#define LINE_PATCHED   2
 };
 
 /*
@@ -2085,7 +2086,8 @@ static int match_fragment(struct image *img,
 
        /* Quick hash check */
        for (i = 0; i < preimage_limit; i++)
-               if (preimage->line[i].hash != img->line[try_lno + i].hash)
+               if ((img->line[try_lno + i].flag & LINE_PATCHED) ||
+                   (preimage->line[i].hash != img->line[try_lno + i].hash))
                        return 0;
 
        if (preimage_limit == preimage->nr) {
@@ -2428,6 +2430,9 @@ static void update_image(struct image *img,
        memcpy(img->line + applied_pos,
               postimage->line,
               postimage->nr * sizeof(*img->line));
+       for (i = 0; i < postimage->nr; i++)
+               img->line[applied_pos + i].flag |= LINE_PATCHED;
+
        img->nr = nr;
 }