push: support pushing HEAD to real branch name

diff --git a/commit.h b/commit.h
index 13b537293df97ae503b993aeba15edc2dac09e2a..aa679867a9376496febd5105121b1f49f3ff96a4 100644 (file)
--- a/commit.h
+++ b/commit.h
@@ -14,6 +14,7 @@ struct commit_list {
 struct commit {
        struct object object;
        void *util;
+       unsigned int indegree;
        unsigned long date;
        struct commit_list *parents;
        struct tree *tree;
@@ -84,31 +85,12 @@ void clear_commit_marks(struct commit *commit, unsigned int mark);
 /*
  * Performs an in-place topological sort of list supplied.
  *
- * Pre-conditions for sort_in_topological_order:
- *   all commits in input list and all parents of those
- *   commits must have object.util == NULL
- *
- * Pre-conditions for sort_in_topological_order_fn:
- *   all commits in input list and all parents of those
- *   commits must have getter(commit) == NULL
- *
- * Post-conditions:
  *   invariant of resulting list is:
  *      a reachable from b => ord(b) < ord(a)
  *   in addition, when lifo == 0, commits on parallel tracks are
  *   sorted in the dates order.
  */
-
-typedef void (*topo_sort_set_fn_t)(struct commit*, void *data);
-typedef void* (*topo_sort_get_fn_t)(struct commit*);
-
-void topo_sort_default_setter(struct commit *c, void *data);
-void *topo_sort_default_getter(struct commit *c);
-
 void sort_in_topological_order(struct commit_list ** list, int lifo);
-void sort_in_topological_order_fn(struct commit_list ** list, int lifo,
-                                 topo_sort_set_fn_t setter,
-                                 topo_sort_get_fn_t getter);
 
 struct commit_graft {
        unsigned char sha1[20];
@@ -135,4 +117,9 @@ extern int interactive_add(void);
 extern void add_files_to_cache(int verbose, const char *prefix, const char **files);
 extern int rerere(void);
 
+static inline int single_parent(struct commit *commit)
+{
+       return commit->parents && !commit->parents->next;
+}
+
 #endif /* COMMIT_H */