4 #include "git-compat-util.h"
5 #include "repository.h"
6 #include "string-list.h"
8 #include "object-store.h"
10 #define GIT_TEST_COMMIT_GRAPH "GIT_TEST_COMMIT_GRAPH"
11 #define GIT_TEST_COMMIT_GRAPH_DIE_ON_LOAD "GIT_TEST_COMMIT_GRAPH_DIE_ON_LOAD"
12 #define GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS "GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS"
15 struct bloom_filter_settings
;
17 char *get_commit_graph_filename(struct object_directory
*odb
);
18 int open_commit_graph(const char *graph_file
, int *fd
, struct stat
*st
);
21 * Given a commit struct, try to fill the commit struct info, including:
26 * Returns 1 if and only if the commit was found in the packed graph.
28 * See parse_commit_buffer() for the fallback after this call.
30 int parse_commit_in_graph(struct repository
*r
, struct commit
*item
);
33 * It is possible that we loaded commit contents from the commit buffer,
34 * but we also want to ensure the commit-graph content is correctly
35 * checked and filled. Fill the graph_pos and generation members of
38 void load_commit_graph_info(struct repository
*r
, struct commit
*item
);
40 struct tree
*get_commit_tree_in_graph(struct repository
*r
,
41 const struct commit
*c
);
46 const unsigned char *data
;
49 unsigned char hash_len
;
50 unsigned char num_chunks
;
54 struct object_directory
*odb
;
56 uint32_t num_commits_in_base
;
57 struct commit_graph
*base_graph
;
59 const uint32_t *chunk_oid_fanout
;
60 const unsigned char *chunk_oid_lookup
;
61 const unsigned char *chunk_commit_data
;
62 const unsigned char *chunk_extra_edges
;
63 const unsigned char *chunk_base_graphs
;
64 const unsigned char *chunk_bloom_indexes
;
65 const unsigned char *chunk_bloom_data
;
67 struct bloom_filter_settings
*bloom_filter_settings
;
70 struct commit_graph
*load_commit_graph_one_fd_st(int fd
, struct stat
*st
,
71 struct object_directory
*odb
);
72 struct commit_graph
*read_commit_graph_one(struct repository
*r
,
73 struct object_directory
*odb
);
74 struct commit_graph
*parse_commit_graph(void *graph_map
, int fd
,
78 * Return 1 if and only if the repository has a commit-graph
79 * file and generation numbers are computed in that file.
81 int generation_numbers_enabled(struct repository
*r
);
83 enum commit_graph_write_flags
{
84 COMMIT_GRAPH_WRITE_APPEND
= (1 << 0),
85 COMMIT_GRAPH_WRITE_PROGRESS
= (1 << 1),
86 COMMIT_GRAPH_WRITE_SPLIT
= (1 << 2),
87 /* Make sure that each OID in the input is a valid commit OID. */
88 COMMIT_GRAPH_WRITE_CHECK_OIDS
= (1 << 3),
89 COMMIT_GRAPH_WRITE_BLOOM_FILTERS
= (1 << 4),
92 struct split_commit_graph_opts
{
95 timestamp_t expire_time
;
99 * The write_commit_graph* methods return zero on success
100 * and a negative value on failure. Note that if the repository
101 * is not compatible with the commit-graph feature, then the
102 * methods will return 0 without writing a commit-graph.
104 int write_commit_graph_reachable(struct object_directory
*odb
,
105 enum commit_graph_write_flags flags
,
106 const struct split_commit_graph_opts
*split_opts
);
107 int write_commit_graph(struct object_directory
*odb
,
108 struct string_list
*pack_indexes
,
109 struct string_list
*commit_hex
,
110 enum commit_graph_write_flags flags
,
111 const struct split_commit_graph_opts
*split_opts
);
113 #define COMMIT_GRAPH_VERIFY_SHALLOW (1 << 0)
115 int verify_commit_graph(struct repository
*r
, struct commit_graph
*g
, int flags
);
117 void close_commit_graph(struct raw_object_store
*);
118 void free_commit_graph(struct commit_graph
*);
121 * Disable further use of the commit graph in this process when parsing a
124 void disable_commit_graph(struct repository
*r
);