test-reach: test is_descendant_of
[gitweb.git] / upload-pack.c
index 427de461d85a3149af934d14887571aaf1c18b42..11c426685d2f2ba7c50d798b6ace6e619a265aed 100644 (file)
 #include "quote.h"
 #include "upload-pack.h"
 #include "serve.h"
+#include "commit-reach.h"
 
 /* Remember to update object flag allocation in object.h */
 #define THEY_HAVE      (1u << 11)
 #define OUR_REF                (1u << 12)
 #define WANTED         (1u << 13)
 #define COMMON_KNOWN   (1u << 14)
-#define REACHABLE      (1u << 15)
 
 #define SHALLOW                (1u << 16)
 #define NOT_SHALLOW    (1u << 17)
@@ -336,74 +336,6 @@ static int got_oid(const char *hex, struct object_id *oid)
        return 0;
 }
 
-static int reachable(struct commit *from, unsigned int with_flag,
-                    unsigned int assign_flag, time_t min_commit_date)
-{
-       struct prio_queue work = { compare_commits_by_commit_date };
-
-       prio_queue_put(&work, from);
-       while (work.nr) {
-               struct commit_list *list;
-               struct commit *commit = prio_queue_get(&work);
-
-               if (commit->object.flags & with_flag) {
-                       from->object.flags |= assign_flag;
-                       break;
-               }
-               if (!commit->object.parsed)
-                       parse_object(the_repository, &commit->object.oid);
-               if (commit->object.flags & REACHABLE)
-                       continue;
-               commit->object.flags |= REACHABLE;
-               if (commit->date < min_commit_date)
-                       continue;
-               for (list = commit->parents; list; list = list->next) {
-                       struct commit *parent = list->item;
-                       if (!(parent->object.flags & REACHABLE))
-                               prio_queue_put(&work, parent);
-               }
-       }
-       from->object.flags |= REACHABLE;
-       clear_commit_marks(from, REACHABLE);
-       clear_prio_queue(&work);
-       return (from->object.flags & assign_flag);
-}
-
-/*
- * Determine if every commit in 'from' can reach at least one commit
- * that is marked with 'with_flag'. As we traverse, use 'assign_flag'
- * as a marker for commits that are already visited. Do not walk
- * commits with date below 'min_commit_date'.
- */
-static int can_all_from_reach_with_flag(struct object_array *from,
-                                       unsigned int with_flag,
-                                       unsigned int assign_flag,
-                                       time_t min_commit_date)
-{
-       int i;
-
-       for (i = 0; i < from->nr; i++) {
-               struct object *from_one = from->objects[i].item;
-
-               if (from_one->flags & assign_flag)
-                       continue;
-               from_one = deref_tag(the_repository, from_one, "a from object", 0);
-               if (!from_one || from_one->type != OBJ_COMMIT) {
-                       /* no way to tell if this is reachable by
-                        * looking at the ancestry chain alone, so
-                        * leave a note to ourselves not to worry about
-                        * this object anymore.
-                        */
-                       from->objects[i].item->flags |= assign_flag;
-                       continue;
-               }
-               if (!reachable((struct commit *)from_one, with_flag, assign_flag,
-                              min_commit_date))
-                       return 0;
-       }
-       return 1;
-}
-
 static int ok_to_give_up(void)
 {
        if (!have_obj.nr)