1 files changed, 41 insertions, 9 deletions

diff --git a/commit-graph.h b/commit-graph.h
index 260a468e73..7dfb8c896f 100644
--- a/commit-graph.h
+++ b/commit-graph.h
@@ -2,8 +2,17 @@
 #define COMMIT_GRAPH_H
 
 #include "git-compat-util.h"
+#include "repository.h"
+#include "string-list.h"
+#include "cache.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);
+int open_commit_graph(const char *graph_file, int *fd, struct stat *st);
 
 /*
  * Given a commit struct, try to fill the commit struct info, including:
@@ -15,9 +24,18 @@ char *get_commit_graph_filename(const char *obj_dir);
  *
  * See parse_commit_buffer() for the fallback after this call.
  */
-int parse_commit_in_graph(struct commit *item);
+int parse_commit_in_graph(struct repository *r, struct commit *item);
+
+/*
+ * 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
+ * the given commit.
+ */
+void load_commit_graph_info(struct repository *r, struct commit *item);
 
-struct tree *get_commit_tree_in_graph(const struct commit *c);
+struct tree *get_commit_tree_in_graph(struct repository *r,
+				      const struct commit *c);
 
 struct commit_graph {
 	int graph_fd;
@@ -33,16 +51,30 @@ struct commit_graph {
 	const uint32_t *chunk_oid_fanout;
 	const unsigned char *chunk_oid_lookup;
 	const unsigned char *chunk_commit_data;
-	const unsigned char *chunk_large_edges;
+	const unsigned char *chunk_extra_edges;
 };
 
-struct commit_graph *load_commit_graph_one(const char *graph_file);
+struct commit_graph *load_commit_graph_one_fd_st(int fd, struct stat *st);
+
+struct commit_graph *parse_commit_graph(void *graph_map, int fd,
+					size_t graph_size);
 
+/*
+ * Return 1 if and only if the repository has a commit-graph
+ * file and generation numbers are computed in that file.
+ */
+int generation_numbers_enabled(struct repository *r);
+
+void write_commit_graph_reachable(const char *obj_dir, int append,
+				  int report_progress);
 void write_commit_graph(const char *obj_dir,
-			const char **pack_indexes,
-			int nr_packs,
-			const char **commit_hex,
-			int nr_commits,
-			int append);
+			struct string_list *pack_indexes,
+			struct string_list *commit_hex,
+			int append, int report_progress);
+
+int verify_commit_graph(struct repository *r, struct commit_graph *g);
+
+void close_commit_graph(struct repository *);
+void free_commit_graph(struct commit_graph *);
 
 #endif