Merge remote-tracking branch 'ko/maint' into jc/diff-index-quick-exit-early

diff --git a/builtin/apply.c b/builtin/apply.c
index a231c0c7ca1c5ae75db84b38c0038777a63ba8d0..530d4bb7e76da8e402f78ab7f981a080d25d6e78 100644 (file)
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -43,6 +43,7 @@ static int apply = 1;
 static int apply_in_reverse;
 static int apply_with_reject;
 static int apply_verbosely;
+static int allow_overlap;
 static int no_add;
 static const char *fake_ancestor;
 static int line_termination = '\n';
@@ -204,6 +205,7 @@ struct line {
        unsigned hash : 24;
        unsigned flag : 8;
 #define LINE_COMMON     1
+#define LINE_PATCHED   2
 };
 
 /*
@@ -2085,7 +2087,8 @@ 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 +2431,9 @@ static void update_image(struct image *img,
        memcpy(img->line + applied_pos,
               postimage->line,
               postimage->nr * sizeof(*img->line));
+       if (!allow_overlap)
+               for (i = 0; i < postimage->nr; i++)
+                       img->line[applied_pos + i].flag |= LINE_PATCHED;
        img->nr = nr;
 }
 
@@ -3884,6 +3890,8 @@ int cmd_apply(int argc, const char **argv, const char *prefix_)
                        "don't expect at least one line of context"),
                OPT_BOOLEAN(0, "reject", &apply_with_reject,
                        "leave the rejected hunks in corresponding *.rej files"),
+               OPT_BOOLEAN(0, "allow-overlap", &allow_overlap,
+                       "allow overlapping hunks"),
                OPT__VERBOSE(&apply_verbosely, "be verbose"),
                OPT_BIT(0, "inaccurate-eof", &options,
                        "tolerate incorrectly detected missing new-line at the end of file",