rerere should not repeat the earlier hunks in later ones

diff --git a/builtin-rerere.c b/builtin-rerere.c
index 318d959d89669f09e12b1b97ca62f100e1a58ecd..004eda2acdf9b8ac5a66f9717d2244613b23768e 100644 (file)
--- a/builtin-rerere.c
+++ b/builtin-rerere.c
@@ -78,6 +78,13 @@ static void append_line(struct buffer *buffer, const char *line)
        buffer->nr += len;
 }
 
+static void clear_buffer(struct buffer *buffer)
+{
+       free(buffer->ptr);
+       buffer->ptr = NULL;
+       buffer->nr = buffer->alloc = 0;
+}
+
 static int handle_file(const char *path,
         unsigned char *sha1, const char *output)
 {
@@ -131,6 +138,8 @@ static int handle_file(const char *path,
                                SHA1_Update(&ctx, two->ptr, two->nr);
                                SHA1_Update(&ctx, "\0", 1);
                        }
+                       clear_buffer(one);
+                       clear_buffer(two);
                } else if (hunk == 1)
                        append_line(one, buf);
                else if (hunk == 2)
@@ -154,13 +163,17 @@ static int find_conflict(struct path_list *conflict)
                return error("Could not read index");
        for (i = 0; i + 2 < active_nr; i++) {
                struct cache_entry *e1 = active_cache[i];
-               struct cache_entry *e2 = active_cache[i + 1];
-               struct cache_entry *e3 = active_cache[i + 2];
-               if (ce_stage(e1) == 1 && ce_stage(e2) == 2 &&
-                               ce_stage(e3) == 3 && ce_same_name(e1, e2) &&
-                               ce_same_name(e1, e3)) {
+               struct cache_entry *e2 = active_cache[i+1];
+               struct cache_entry *e3 = active_cache[i+2];
+               if (ce_stage(e1) == 1 &&
+                   ce_stage(e2) == 2 &&
+                   ce_stage(e3) == 3 &&
+                   ce_same_name(e1, e2) && ce_same_name(e1, e3) &&
+                   S_ISREG(ntohl(e1->ce_mode)) &&
+                   S_ISREG(ntohl(e2->ce_mode)) &&
+                   S_ISREG(ntohl(e3->ce_mode))) {
                        path_list_insert((const char *)e1->name, conflict);
-                       i += 3;
+                       i += 2;
                }
        }
        return 0;