remote-bzr: add support to push special modes

diff --git a/remote.c b/remote.c
index b296d174043b5e5a11aceb9940ba6ba035e77678..04fd9ea4bd2f99003c9c5abb7bbbad7dafca3937 100644 (file)
--- a/remote.c
+++ b/remote.c
@@ -7,6 +7,7 @@
 #include "dir.h"
 #include "tag.h"
 #include "string-list.h"
+#include "mergesort.h"
 
 enum map_direction { FROM_SRC, FROM_DST };
 
@@ -918,6 +919,27 @@ void free_refs(struct ref *ref)
        }
 }
 
+int ref_compare_name(const void *va, const void *vb)
+{
+       const struct ref *a = va, *b = vb;
+       return strcmp(a->name, b->name);
+}
+
+static void *ref_list_get_next(const void *a)
+{
+       return ((const struct ref *)a)->next;
+}
+
+static void ref_list_set_next(void *a, void *next)
+{
+       ((struct ref *)a)->next = next;
+}
+
+void sort_ref_list(struct ref **l, int (*cmp)(const void *, const void *))
+{
+       *l = llist_mergesort(*l, ref_list_get_next, ref_list_set_next, cmp);
+}
+
 static int count_refspec_match(const char *pattern,
                               struct ref *refs,
                               struct ref **matched_ref)
@@ -1078,6 +1100,9 @@ static int match_explicit(struct ref *src, struct ref *dst,
        case 0:
                if (!memcmp(dst_value, "refs/", 5))
                        matched_dst = make_linked_ref(dst_value, dst_tail);
+               else if (is_null_sha1(matched_src->new_sha1))
+                       error("unable to delete '%s': remote ref does not exist",
+                             dst_value);
                else if ((dst_guess = guess_ref(dst_value, matched_src)))
                        matched_dst = make_linked_ref(dst_guess, dst_tail);
                else