create_symref: if symlink fails, fall back to writing a "symbolic ref"

[git.git] / write-tree.c

diff --git a/write-tree.c b/write-tree.c
index a794ea1..2b2c6b7 100644 (file)
--- a/write-tree.c
+++ b/write-tree.c
@@ -5,6 +5,8 @@
  */
 #include "cache.h"
 
+static int missing_ok = 0;
+
 static int check_valid_sha1(unsigned char *sha1)
 {
        int ret;
@@ -61,7 +63,7 @@ static int write_tree(struct cache_entry **cachep, int maxentries, const char *b
                        sha1 = subdir_sha1;
                }
 
-               if (check_valid_sha1(sha1) < 0)
+               if (!missing_ok && check_valid_sha1(sha1) < 0)
                        exit(1);
 
                entrylen = pathlen - baselen;
@@ -86,6 +88,16 @@ int main(int argc, char **argv)
        int i, funny;
        int entries = read_cache();
        unsigned char sha1[20];
+       
+       if (argc == 2) {
+               if (!strcmp(argv[1], "--missing-ok"))
+                       missing_ok = 1;
+               else
+                       die("unknown option %s", argv[1]);
+       }
+       
+       if (argc > 2)
+               die("too many options");
 
        if (entries < 0)
                die("git-write-tree: error reading cache");