1 files changed, 22 insertions, 9 deletions

diff --git a/commit-graph.h b/commit-graph.h
index 45b1e5bca3..09a97030dc 100644
--- a/commit-graph.h
+++ b/commit-graph.h
@@ -3,6 +3,7 @@
 
 #include "git-compat-util.h"
 #include "object-store.h"
+#include "oidset.h"
 
 #define GIT_TEST_COMMIT_GRAPH "GIT_TEST_COMMIT_GRAPH"
 #define GIT_TEST_COMMIT_GRAPH_DIE_ON_PARSE "GIT_TEST_COMMIT_GRAPH_DIE_ON_PARSE"
@@ -50,8 +51,6 @@ 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;
 
@@ -80,8 +79,7 @@ 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);
+struct commit_graph *parse_commit_graph(void *graph_map, size_t graph_size);
 
 /*
  * Return 1 if and only if the repository has a commit-graph
@@ -93,16 +91,21 @@ 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 << 4),
-	COMMIT_GRAPH_NO_WRITE_BLOOM_FILTERS = (1 << 5),
+	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 {
 	int size_multiple;
 	int max_commits;
 	timestamp_t expire_time;
+	enum commit_graph_split_flags flags;
 };
 
 /*
@@ -116,7 +119,7 @@ int write_commit_graph_reachable(struct object_directory *odb,
 				 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,
+		       struct oidset *commits,
 		       enum commit_graph_write_flags flags,
 		       const struct split_commit_graph_opts *split_opts);
 
@@ -133,4 +136,14 @@ void free_commit_graph(struct commit_graph *);
  */
 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