4 #include "git-compat-util.h"
5 #include "repository.h"
6 #include "string-list.h"
8 #include "object-store.h"
11 #define GIT_TEST_COMMIT_GRAPH "GIT_TEST_COMMIT_GRAPH"
12 #define GIT_TEST_COMMIT_GRAPH_DIE_ON_LOAD "GIT_TEST_COMMIT_GRAPH_DIE_ON_LOAD"
16 char *get_commit_graph_filename(struct object_directory
*odb
);
17 int open_commit_graph(const char *graph_file
, int *fd
, struct stat
*st
);
20 * Given a commit struct, try to fill the commit struct info, including:
25 * Returns 1 if and only if the commit was found in the packed graph.
27 * See parse_commit_buffer() for the fallback after this call.
29 int parse_commit_in_graph(struct repository
*r
, struct commit
*item
);
32 * It is possible that we loaded commit contents from the commit buffer,
33 * but we also want to ensure the commit-graph content is correctly
34 * checked and filled. Fill the graph_pos and generation members of
37 void load_commit_graph_info(struct repository
*r
, struct commit
*item
);
39 struct tree
*get_commit_tree_in_graph(struct repository
*r
,
40 const struct commit
*c
);
45 const unsigned char *data
;
48 unsigned char hash_len
;
49 unsigned char num_chunks
;
53 struct object_directory
*odb
;
55 uint32_t num_commits_in_base
;
56 struct commit_graph
*base_graph
;
58 const uint32_t *chunk_oid_fanout
;
59 const unsigned char *chunk_oid_lookup
;
60 const unsigned char *chunk_commit_data
;
61 const unsigned char *chunk_extra_edges
;
62 const unsigned char *chunk_base_graphs
;
65 struct commit_graph
*load_commit_graph_one_fd_st(int fd
, struct stat
*st
,
66 struct object_directory
*odb
);
67 struct commit_graph
*read_commit_graph_one(struct repository
*r
,
68 struct object_directory
*odb
);
69 struct commit_graph
*parse_commit_graph(void *graph_map
, int fd
,
73 * Return 1 if and only if the repository has a commit-graph
74 * file and generation numbers are computed in that file.
76 int generation_numbers_enabled(struct repository
*r
);
78 enum commit_graph_write_flags
{
79 COMMIT_GRAPH_WRITE_APPEND
= (1 << 0),
80 COMMIT_GRAPH_WRITE_PROGRESS
= (1 << 1),
81 COMMIT_GRAPH_WRITE_SPLIT
= (1 << 2),
82 /* Make sure that each OID in the input is a valid commit OID. */
83 COMMIT_GRAPH_WRITE_CHECK_OIDS
= (1 << 3)
86 enum commit_graph_split_flags
{
87 COMMIT_GRAPH_SPLIT_UNSPECIFIED
= 0,
88 COMMIT_GRAPH_SPLIT_MERGE_PROHIBITED
= 1,
89 COMMIT_GRAPH_SPLIT_REPLACE
= 2
92 struct split_commit_graph_opts
{
95 timestamp_t expire_time
;
96 enum commit_graph_split_flags flags
;
100 * The write_commit_graph* methods return zero on success
101 * and a negative value on failure. Note that if the repository
102 * is not compatible with the commit-graph feature, then the
103 * methods will return 0 without writing a commit-graph.
105 int write_commit_graph_reachable(struct object_directory
*odb
,
106 enum commit_graph_write_flags flags
,
107 const struct split_commit_graph_opts
*split_opts
);
108 int write_commit_graph(struct object_directory
*odb
,
109 struct string_list
*pack_indexes
,
110 struct oidset
*commits
,
111 enum commit_graph_write_flags flags
,
112 const struct split_commit_graph_opts
*split_opts
);
114 #define COMMIT_GRAPH_VERIFY_SHALLOW (1 << 0)
116 int verify_commit_graph(struct repository
*r
, struct commit_graph
*g
, int flags
);
118 void close_commit_graph(struct raw_object_store
*);
119 void free_commit_graph(struct commit_graph
*);
122 * Disable further use of the commit graph in this process when parsing a
125 void disable_commit_graph(struct repository
*r
);