commit-graph: add missing forward declaration
[git/git.git] / commit-graph.h
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08fd81c9
DS
1#ifndef COMMIT_GRAPH_H
2#define COMMIT_GRAPH_H
3
2a2e32bd 4#include "git-compat-util.h"
283e68c7 5#include "repository.h"
d88b14b3 6#include "string-list.h"
2a2e32bd 7
e5c5ca27
JT
8struct commit;
9
2a2e32bd
DS
10char *get_commit_graph_filename(const char *obj_dir);
11
177722b3
DS
12/*
13 * Given a commit struct, try to fill the commit struct info, including:
14 * 1. tree object
15 * 2. date
16 * 3. parents.
17 *
18 * Returns 1 if and only if the commit was found in the packed graph.
19 *
20 * See parse_commit_buffer() for the fallback after this call.
21 */
22int parse_commit_in_graph(struct commit *item);
23
e2838d85
DS
24/*
25 * It is possible that we loaded commit contents from the commit buffer,
26 * but we also want to ensure the commit-graph content is correctly
27 * checked and filled. Fill the graph_pos and generation members of
28 * the given commit.
29 */
30void load_commit_graph_info(struct commit *item);
31
7b8a21db
DS
32struct tree *get_commit_tree_in_graph(const struct commit *c);
33
2a2e32bd
DS
34struct commit_graph {
35 int graph_fd;
36
37 const unsigned char *data;
38 size_t data_len;
39
40 unsigned char hash_len;
41 unsigned char num_chunks;
42 uint32_t num_commits;
43 struct object_id oid;
44
45 const uint32_t *chunk_oid_fanout;
46 const unsigned char *chunk_oid_lookup;
47 const unsigned char *chunk_commit_data;
48 const unsigned char *chunk_large_edges;
49};
50
51struct commit_graph *load_commit_graph_one(const char *graph_file);
52
59fb8770 53void write_commit_graph_reachable(const char *obj_dir, int append);
049d51a2 54void write_commit_graph(const char *obj_dir,
d88b14b3
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55 struct string_list *pack_indexes,
56 struct string_list *commit_hex,
7547b95b 57 int append);
08fd81c9 58
283e68c7
DS
59int verify_commit_graph(struct repository *r, struct commit_graph *g);
60
08fd81c9 61#endif