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"
15 char *get_commit_graph_filename(const char *obj_dir);
16 int open_commit_graph(const char *graph_file, int *fd, struct stat *st);
19 * Given a commit struct, try to fill the commit struct info, including:
24 * Returns 1 if and only if the commit was found in the packed graph.
26 * See parse_commit_buffer() for the fallback after this call.
28 int parse_commit_in_graph(struct repository *r, struct commit *item);
31 * It is possible that we loaded commit contents from the commit buffer,
32 * but we also want to ensure the commit-graph content is correctly
33 * checked and filled. Fill the graph_pos and generation members of
36 void load_commit_graph_info(struct repository *r, struct commit *item);
38 struct tree *get_commit_tree_in_graph(struct repository *r,
39 const struct commit *c);
44 const unsigned char *data;
47 unsigned char hash_len;
48 unsigned char num_chunks;
54 uint32_t num_commits_in_base;
55 struct commit_graph *base_graph;
57 const uint32_t *chunk_oid_fanout;
58 const unsigned char *chunk_oid_lookup;
59 const unsigned char *chunk_commit_data;
60 const unsigned char *chunk_extra_edges;
61 const unsigned char *chunk_base_graphs;
64 struct commit_graph *load_commit_graph_one_fd_st(int fd, struct stat *st);
65 struct commit_graph *read_commit_graph_one(struct repository *r, const char *obj_dir);
66 struct commit_graph *parse_commit_graph(void *graph_map, int fd,
70 * Return 1 if and only if the repository has a commit-graph
71 * file and generation numbers are computed in that file.
73 int generation_numbers_enabled(struct repository *r);
75 enum commit_graph_write_flags {
76 COMMIT_GRAPH_WRITE_APPEND = (1 << 0),
77 COMMIT_GRAPH_WRITE_PROGRESS = (1 << 1),
78 COMMIT_GRAPH_WRITE_SPLIT = (1 << 2),
79 /* Make sure that each OID in the input is a valid commit OID. */
80 COMMIT_GRAPH_WRITE_CHECK_OIDS = (1 << 3)
83 struct split_commit_graph_opts {
86 timestamp_t expire_time;
90 * The write_commit_graph* methods return zero on success
91 * and a negative value on failure. Note that if the repository
92 * is not compatible with the commit-graph feature, then the
93 * methods will return 0 without writing a commit-graph.
95 int write_commit_graph_reachable(struct object_directory *odb,
96 enum commit_graph_write_flags flags,
97 const struct split_commit_graph_opts *split_opts);
98 int write_commit_graph(struct object_directory *odb,
99 struct string_list *pack_indexes,
100 struct string_list *commit_hex,
101 enum commit_graph_write_flags flags,
102 const struct split_commit_graph_opts *split_opts);
104 #define COMMIT_GRAPH_VERIFY_SHALLOW (1 << 0)
106 int verify_commit_graph(struct repository *r, struct commit_graph *g, int flags);
108 void close_commit_graph(struct raw_object_store *);
109 void free_commit_graph(struct commit_graph *);
112 * Disable further use of the commit graph in this process when parsing a
115 void disable_commit_graph(struct repository *r);