Add missing includes and forward declarations
[git/git.git] / commit-graph.h
1 #ifndef COMMIT_GRAPH_H
2 #define COMMIT_GRAPH_H
3
4 #include "git-compat-util.h"
5 #include "repository.h"
6 #include "string-list.h"
7 #include "cache.h"
8
9 struct commit;
10
11 char *get_commit_graph_filename(const char *obj_dir);
12
13 /*
14 * Given a commit struct, try to fill the commit struct info, including:
15 * 1. tree object
16 * 2. date
17 * 3. parents.
18 *
19 * Returns 1 if and only if the commit was found in the packed graph.
20 *
21 * See parse_commit_buffer() for the fallback after this call.
22 */
23 int parse_commit_in_graph(struct repository *r, struct commit *item);
24
25 /*
26 * It is possible that we loaded commit contents from the commit buffer,
27 * but we also want to ensure the commit-graph content is correctly
28 * checked and filled. Fill the graph_pos and generation members of
29 * the given commit.
30 */
31 void load_commit_graph_info(struct repository *r, struct commit *item);
32
33 struct tree *get_commit_tree_in_graph(struct repository *r,
34 const struct commit *c);
35
36 struct commit_graph {
37 int graph_fd;
38
39 const unsigned char *data;
40 size_t data_len;
41
42 unsigned char hash_len;
43 unsigned char num_chunks;
44 uint32_t num_commits;
45 struct object_id oid;
46
47 const uint32_t *chunk_oid_fanout;
48 const unsigned char *chunk_oid_lookup;
49 const unsigned char *chunk_commit_data;
50 const unsigned char *chunk_large_edges;
51 };
52
53 struct commit_graph *load_commit_graph_one(const char *graph_file);
54
55 void write_commit_graph_reachable(const char *obj_dir, int append);
56 void write_commit_graph(const char *obj_dir,
57 struct string_list *pack_indexes,
58 struct string_list *commit_hex,
59 int append);
60
61 int verify_commit_graph(struct repository *r, struct commit_graph *g);
62
63 void free_commit_graph(struct commit_graph *);
64
65 #endif