0caeecf00f1aedf753f9f1fa88c3b5113cc53a52
[git/git.git] / 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
11 struct rev_info;
12
13 typedef void (prune_fn_t)(struct rev_info *revs, struct commit *commit);
14
15 struct rev_info {
16 /* Starting list */
17 struct commit_list *commits;
18 struct object_list *pending_objects;
19
20 /* Basic information */
21 const char *prefix;
22 void *prune_data;
23 prune_fn_t *prune_fn;
24
25 /* Traversal flags */
26 unsigned int dense:1,
27 no_merges:1,
28 remove_empty_trees:1,
29 lifo:1,
30 topo_order:1,
31 tag_objects:1,
32 tree_objects:1,
33 blob_objects:1,
34 edge_hint:1,
35 limited:1,
36 unpacked:1,
37 boundary:1,
38 parents:1;
39
40 /* special limits */
41 int max_count;
42 unsigned long max_age;
43 unsigned long min_age;
44
45 topo_sort_set_fn_t topo_setter;
46 topo_sort_get_fn_t topo_getter;
47 };
48
49 #define REV_TREE_SAME 0
50 #define REV_TREE_NEW 1
51 #define REV_TREE_DIFFERENT 2
52
53 /* revision.c */
54 extern int rev_same_tree_as_empty(struct tree *t1);
55 extern int rev_compare_tree(struct tree *t1, struct tree *t2);
56
57 extern void init_revisions(struct rev_info *revs);
58 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
59 extern void prepare_revision_walk(struct rev_info *revs);
60 extern struct commit *get_revision(struct rev_info *revs);
61
62 extern void mark_parents_uninteresting(struct commit *commit);
63 extern void mark_tree_uninteresting(struct tree *tree);
64
65 struct name_path {
66 struct name_path *up;
67 int elem_len;
68 const char *elem;
69 };
70
71 extern struct object_list **add_object(struct object *obj,
72 struct object_list **p,
73 struct name_path *path,
74 const char *name);
75
76 #endif