revision.h

   1 #ifndef REVISION_H
   2 #define REVISION_H
   3
   4 #define SEEN            (1u<<0)
   5 #define UNINTERESTING   (1u<<1)
   6 #define TREECHANGE      (1u<<2)
   7 #define SHOWN           (1u<<3)
   8 #define TMP_MARK        (1u<<4) /* for isolated cases; clean after use */
   9 #define BOUNDARY        (1u<<5)
  10 #define ADDED           (1u<<6) /* Parents already parsed and added? */
  11
  12 struct rev_info;
  13
  14 typedef void (prune_fn_t)(struct rev_info *revs, struct commit *commit);
  15
  16 struct rev_info {
  17         /* Starting list */
  18         struct commit_list *commits;
  19         struct object_list *pending_objects;
  20
  21         /* Basic information */
  22         const char *prefix;
  23         void *prune_data;
  24         prune_fn_t *prune_fn;
  25
  26         /* Traversal flags */
  27         unsigned int    dense:1,
  28                         no_merges:1,
  29                         remove_empty_trees:1,
  30                         lifo:1,
  31                         topo_order:1,
  32                         tag_objects:1,
  33                         tree_objects:1,
  34                         blob_objects:1,
  35                         edge_hint:1,
  36                         limited:1,
  37                         unpacked:1,
  38                         boundary:1,
  39                         parents:1;
  40
  41         /* special limits */
  42         int max_count;
  43         unsigned long max_age;
  44         unsigned long min_age;
  45
  46         /* paths limiting */
  47         struct diff_options diffopt;
  48
  49         topo_sort_set_fn_t topo_setter;
  50         topo_sort_get_fn_t topo_getter;
  51 };
  52
  53 #define REV_TREE_SAME           0
  54 #define REV_TREE_NEW            1
  55 #define REV_TREE_DIFFERENT      2
  56
  57 /* revision.c */
  58 extern int rev_same_tree_as_empty(struct rev_info *, struct tree *t1);
  59 extern int rev_compare_tree(struct rev_info *, struct tree *t1, struct tree *t2);
  60
  61 extern void init_revisions(struct rev_info *revs);
  62 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
  63 extern void prepare_revision_walk(struct rev_info *revs);
  64 extern struct commit *get_revision(struct rev_info *revs);
  65
  66 extern void mark_parents_uninteresting(struct commit *commit);
  67 extern void mark_tree_uninteresting(struct tree *tree);
  68
  69 struct name_path {
  70         struct name_path *up;
  71         int elem_len;
  72         const char *elem;
  73 };
  74
  75 extern struct object_list **add_object(struct object *obj,
  76                                        struct object_list **p,
  77                                        struct name_path *path,
  78                                        const char *name);
  79
  80 #endif