Add merge-subtree back

diff --git a/builtin-prune.c b/builtin-prune.c
index 6f0ba0d04d789f17e3f0136a3591a9465af7e71d..b5e768421ba548efaf0dd62ca876c15911df55d2 100644 (file)
--- a/builtin-prune.c
+++ b/builtin-prune.c
@@ -7,22 +7,24 @@
 
 static const char prune_usage[] = "git-prune [-n]";
 static int show_only;
+static unsigned long expire;
 
 static int prune_object(char *path, const char *filename, const unsigned char *sha1)
 {
-       char buf[20];
-       const char *type;
-
-       if (show_only) {
-               if (sha1_object_info(sha1, buf, NULL))
-                       type = "unknown";
-               else
-                       type = buf;
-               printf("%s %s\n", sha1_to_hex(sha1), type);
-               return 0;
+       const char *fullpath = mkpath("%s/%s", path, filename);
+       if (expire) {
+               struct stat st;
+               if (lstat(fullpath, &st))
+                       return error("Could not stat '%s'", fullpath);
+               if (st.st_mtime > expire)
+                       return 0;
        }
-       unlink(mkpath("%s/%s", path, filename));
-       rmdir(path);
+       if (show_only) {
+               enum object_type type = sha1_object_info(sha1, NULL);
+               printf("%s %s\n", sha1_to_hex(sha1),
+                      (type > 0) ? typename(type) : "unknown");
+       } else
+               unlink(fullpath);
        return 0;
 }
 
@@ -65,6 +67,8 @@ static int prune_dir(int i, char *path)
                }
                fprintf(stderr, "bad sha1 file: %s/%s\n", path, de->d_name);
        }
+       if (!show_only)
+               rmdir(path);
        closedir(dir);
        return 0;
 }
@@ -90,6 +94,16 @@ int cmd_prune(int argc, const char **argv, const char *prefix)
                        show_only = 1;
                        continue;
                }
+               if (!strcmp(arg, "--expire")) {
+                       if (++i < argc) {
+                               expire = approxidate(argv[i]);
+                               continue;
+                       }
+               }
+               else if (!prefixcmp(arg, "--expire=")) {
+                       expire = approxidate(arg + 9);
+                       continue;
+               }
                usage(prune_usage);
        }