diff options
Diffstat (limited to 'third_party/git/commit-graph.h')
| -rw-r--r-- | third_party/git/commit-graph.h | 94 |
1 files changed, 72 insertions, 22 deletions
diff --git a/third_party/git/commit-graph.h b/third_party/git/commit-graph.h index df9a3b20e4ab..f8e92500c6e4 100644 --- a/third_party/git/commit-graph.h +++ b/third_party/git/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); /* @@ -38,8 +52,6 @@ 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; @@ -48,7 +60,7 @@ 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; struct commit_graph *base_graph; @@ -58,12 +70,19 @@ struct commit_graph { const unsigned char *chunk_commit_data; 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 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 @@ -71,14 +90,28 @@ struct commit_graph *parse_commit_graph(void *graph_map, int fd, */ int generation_numbers_enabled(struct repository *r); -#define COMMIT_GRAPH_APPEND (1 << 0) -#define COMMIT_GRAPH_PROGRESS (1 << 1) -#define COMMIT_GRAPH_SPLIT (1 << 2) +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), + 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; }; /* @@ -87,13 +120,14 @@ 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, unsigned int flags, - const struct split_commit_graph_opts *split_opts); -int write_commit_graph(const char *obj_dir, +int write_commit_graph_reachable(struct object_directory *odb, + enum commit_graph_write_flags flags, + const struct commit_graph_opts *opts); +int write_commit_graph(struct object_directory *odb, struct string_list *pack_indexes, - struct string_list *commit_hex, - unsigned int flags, - const struct split_commit_graph_opts *split_opts); + struct oidset *commits, + enum commit_graph_write_flags flags, + const struct commit_graph_opts *opts); #define COMMIT_GRAPH_VERIFY_SHALLOW (1 << 0) @@ -102,4 +136,20 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g, int flags) void close_commit_graph(struct raw_object_store *); void free_commit_graph(struct commit_graph *); +/* + * Disable further use of the commit graph in this process when parsing a + * "struct commit". + */ +void disable_commit_graph(struct repository *r); + +struct commit_graph_data { + uint32_t graph_pos; + uint32_t generation; +}; + +/* + * Commits should be parsed before accessing generation, graph positions. + */ +uint32_t commit_graph_generation(const struct commit *); +uint32_t commit_graph_position(const struct commit *); #endif |