commit-graph.c: ensure graph layers respect core.sharedRepository

[thirdparty/git.git] / commit-graph.h

diff --git a/commit-graph.h b/commit-graph.h
index 390c7f696104fbe772151b91cb04889d0f682401..e87a6f636000d68137fe3ec437b02e439a8171a5 100644 (file)
--- a/commit-graph.h
+++ b/commit-graph.h
@@ -5,13 +5,14 @@
 #include "repository.h"
 #include "string-list.h"
 #include "cache.h"
+#include "object-store.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"
 
 struct commit;
 
-char *get_commit_graph_filename(const char *obj_dir);
+char *get_commit_graph_filename(struct object_directory *odb);
 int open_commit_graph(const char *graph_file, int *fd, struct stat *st);
 
 /*
@@ -47,15 +48,23 @@ struct commit_graph {
        unsigned char num_chunks;
        uint32_t num_commits;
        struct object_id oid;
+       char *filename;
+       struct object_directory *odb;
+
+       uint32_t num_commits_in_base;
+       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_extra_edges;
+       const unsigned char *chunk_base_graphs;
 };
 
-struct commit_graph *load_commit_graph_one_fd_st(int fd, struct stat *st);
-
+struct commit_graph *load_commit_graph_one_fd_st(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(void *graph_map, int fd,
                                        size_t graph_size);
 
@@ -65,8 +74,19 @@ 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)
+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)
+};
+
+struct split_commit_graph_opts {
+       int size_multiple;
+       int max_commits;
+       timestamp_t expire_time;
+};
 
 /*
  * The write_commit_graph* methods return zero on success
@@ -74,15 +94,26 @@ int generation_numbers_enabled(struct repository *r);
  * 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);
-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 split_commit_graph_opts *split_opts);
+int write_commit_graph(struct object_directory *odb,
                       struct string_list *pack_indexes,
                       struct string_list *commit_hex,
-                      unsigned int flags);
+                      enum commit_graph_write_flags flags,
+                      const struct split_commit_graph_opts *split_opts);
 
-int verify_commit_graph(struct repository *r, struct commit_graph *g);
+#define COMMIT_GRAPH_VERIFY_SHALLOW    (1 << 0)
+
+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);
+
 #endif