diff options
Diffstat (limited to 'commit-graph.h')
| -rw-r--r-- | commit-graph.h | 99 |
1 files changed, 78 insertions, 21 deletions
diff --git a/commit-graph.h b/commit-graph.h index 7f5c933fa2..2e3ac35237 100644 --- a/commit-graph.h +++ b/commit-graph.h @@ -2,16 +2,30 @@ #define COMMIT_GRAPH_H #include "git-compat-util.h" -#include "repository.h" -#include "string-list.h" -#include "cache.h" +#include "object-store.h" +#include "oidset.h" #define GIT_TEST_COMMIT_GRAPH "GIT_TEST_COMMIT_GRAPH" -#define GIT_TEST_COMMIT_GRAPH_DIE_ON_LOAD "GIT_TEST_COMMIT_GRAPH_DIE_ON_LOAD" +#define GIT_TEST_COMMIT_GRAPH_DIE_ON_PARSE "GIT_TEST_COMMIT_GRAPH_DIE_ON_PARSE" +#define GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS "GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS" + +/* + * This method is only used to enhance coverage of the commit-graph + * feature in the test suite with the GIT_TEST_COMMIT_GRAPH and + * GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS environment variables. Do not + * call this method oustide of a builtin, and only if you know what + * you are doing! + */ +void git_test_write_commit_graph_or_die(void); struct commit; +struct bloom_filter_settings; +struct repository; +struct raw_object_store; +struct string_list; -char *get_commit_graph_filename(const char *obj_dir); +char *get_commit_graph_filename(struct object_directory *odb); +char *get_commit_graph_chain_filename(struct object_directory *odb); int open_commit_graph(const char *graph_file, int *fd, struct stat *st); /* @@ -27,6 +41,14 @@ int open_commit_graph(const char *graph_file, int *fd, struct stat *st); int parse_commit_in_graph(struct repository *r, struct commit *item); /* + * Look up the given commit ID in the commit-graph. This will only return a + * commit if the ID exists both in the graph and in the object database such + * that we don't return commits whose object has been pruned. Otherwise, this + * function returns `NULL`. + */ +struct commit *lookup_commit_in_graph(struct repository *repo, const struct object_id *id); + +/* * It is possible that we loaded commit contents from the commit buffer, * but we also want to ensure the commit-graph content is correctly * checked and filled. Fill the graph_pos and generation members of @@ -38,8 +60,6 @@ struct tree *get_commit_tree_in_graph(struct repository *r, const struct commit *c); struct commit_graph { - int graph_fd; - const unsigned char *data; size_t data_len; @@ -48,22 +68,33 @@ struct commit_graph { uint32_t num_commits; struct object_id oid; char *filename; - const char *obj_dir; + struct object_directory *odb; uint32_t num_commits_in_base; + unsigned int read_generation_data; struct commit_graph *base_graph; const uint32_t *chunk_oid_fanout; const unsigned char *chunk_oid_lookup; const unsigned char *chunk_commit_data; + const unsigned char *chunk_generation_data; + const unsigned char *chunk_generation_data_overflow; const unsigned char *chunk_extra_edges; const unsigned char *chunk_base_graphs; + const unsigned char *chunk_bloom_indexes; + const unsigned char *chunk_bloom_data; + + struct topo_level_slab *topo_levels; + struct bloom_filter_settings *bloom_filter_settings; }; -struct commit_graph *load_commit_graph_one_fd_st(int fd, struct stat *st); -struct commit_graph *read_commit_graph_one(struct repository *r, const char *obj_dir); -struct commit_graph *parse_commit_graph(void *graph_map, int fd, - size_t graph_size); +struct commit_graph *load_commit_graph_one_fd_st(struct repository *r, + int fd, struct stat *st, + struct object_directory *odb); +struct commit_graph *read_commit_graph_one(struct repository *r, + struct object_directory *odb); +struct commit_graph *parse_commit_graph(struct repository *r, + void *graph_map, size_t graph_size); /* * Return 1 if and only if the repository has a commit-graph @@ -71,18 +102,34 @@ struct commit_graph *parse_commit_graph(void *graph_map, int fd, */ int generation_numbers_enabled(struct repository *r); +/* + * Return 1 if and only if the repository has a commit-graph + * file and generation data chunk has been written for the file. + */ +int corrected_commit_dates_enabled(struct repository *r); + +struct bloom_filter_settings *get_bloom_filter_settings(struct repository *r); + enum commit_graph_write_flags { COMMIT_GRAPH_WRITE_APPEND = (1 << 0), COMMIT_GRAPH_WRITE_PROGRESS = (1 << 1), COMMIT_GRAPH_WRITE_SPLIT = (1 << 2), - /* Make sure that each OID in the input is a valid commit OID. */ - COMMIT_GRAPH_WRITE_CHECK_OIDS = (1 << 3) + COMMIT_GRAPH_WRITE_BLOOM_FILTERS = (1 << 3), + COMMIT_GRAPH_NO_WRITE_BLOOM_FILTERS = (1 << 4), +}; + +enum commit_graph_split_flags { + COMMIT_GRAPH_SPLIT_UNSPECIFIED = 0, + COMMIT_GRAPH_SPLIT_MERGE_PROHIBITED = 1, + COMMIT_GRAPH_SPLIT_REPLACE = 2 }; -struct split_commit_graph_opts { +struct commit_graph_opts { int size_multiple; int max_commits; timestamp_t expire_time; + enum commit_graph_split_flags split_flags; + int max_new_filters; }; /* @@ -91,14 +138,14 @@ struct split_commit_graph_opts { * is not compatible with the commit-graph feature, then the * methods will return 0 without writing a commit-graph. */ -int write_commit_graph_reachable(const char *obj_dir, +int write_commit_graph_reachable(struct object_directory *odb, enum commit_graph_write_flags flags, - const struct split_commit_graph_opts *split_opts); -int write_commit_graph(const char *obj_dir, - struct string_list *pack_indexes, - struct string_list *commit_hex, + const struct commit_graph_opts *opts); +int write_commit_graph(struct object_directory *odb, + const struct string_list *pack_indexes, + struct oidset *commits, enum commit_graph_write_flags flags, - const struct split_commit_graph_opts *split_opts); + const struct commit_graph_opts *opts); #define COMMIT_GRAPH_VERIFY_SHALLOW (1 << 0) @@ -113,4 +160,14 @@ void free_commit_graph(struct commit_graph *); */ void disable_commit_graph(struct repository *r); +struct commit_graph_data { + uint32_t graph_pos; + timestamp_t generation; +}; + +/* + * Commits should be parsed before accessing generation, graph positions. + */ +timestamp_t commit_graph_generation(const struct commit *); +uint32_t commit_graph_position(const struct commit *); #endif |