rev-list: memory usage reduction.
[git/git.git] / revision.h
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1#ifndef REVISION_H
2#define REVISION_H
3
4#define SEEN (1u<<0)
5#define UNINTERESTING (1u<<1)
a4a88b2b 6#define TREECHANGE (1u<<2)
765ac8ec 7#define SHOWN (1u<<3)
7ae0b0cb 8#define TMP_MARK (1u<<4) /* for isolated cases; clean after use */
ae563542 9
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10struct rev_info;
11
12typedef void (prune_fn_t)(struct rev_info *revs, struct commit *commit);
13
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14struct rev_info {
15 /* Starting list */
16 struct commit_list *commits;
17 struct object_list *pending_objects;
18
19 /* Basic information */
20 const char *prefix;
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21 void *prune_data;
22 prune_fn_t *prune_fn;
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23
24 /* Traversal flags */
25 unsigned int dense:1,
765ac8ec 26 no_merges:1,
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27 remove_empty_trees:1,
28 lifo:1,
29 topo_order:1,
30 tag_objects:1,
31 tree_objects:1,
32 blob_objects:1,
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33 edge_hint:1,
34 limited:1,
35 unpacked:1;
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36
37 /* special limits */
38 int max_count;
39 unsigned long max_age;
40 unsigned long min_age;
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41
42 topo_sort_set_fn_t topo_setter;
43 topo_sort_get_fn_t topo_getter;
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44};
45
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46#define REV_TREE_SAME 0
47#define REV_TREE_NEW 1
48#define REV_TREE_DIFFERENT 2
49
ae563542 50/* revision.c */
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51extern int rev_same_tree_as_empty(struct tree *t1);
52extern int rev_compare_tree(struct tree *t1, struct tree *t2);
53
54extern void init_revisions(struct rev_info *revs);
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55extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
56extern void prepare_revision_walk(struct rev_info *revs);
57extern struct commit *get_revision(struct rev_info *revs);
58
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59extern void mark_parents_uninteresting(struct commit *commit);
60extern void mark_tree_uninteresting(struct tree *tree);
61
62struct name_path {
63 struct name_path *up;
64 int elem_len;
65 const char *elem;
66};
67
68extern struct object_list **add_object(struct object *obj,
69 struct object_list **p,
70 struct name_path *path,
71 const char *name);
72
73#endif