commit-graph: implement git commit-graph read

diff --git a/commit-graph.h b/commit-graph.h
index 16fea993ab6f73af31ddec90e1b3bf385dc3fb71..2528478f06db26abbfc22ca62e93425bf6a1da05 100644 (file)
--- a/commit-graph.h
+++ b/commit-graph.h
@@ -1,6 +1,29 @@
 #ifndef COMMIT_GRAPH_H
 #define COMMIT_GRAPH_H
 
+#include "git-compat-util.h"
+
+char *get_commit_graph_filename(const char *obj_dir);
+
+struct commit_graph {
+       int graph_fd;
+
+       const unsigned char *data;
+       size_t data_len;
+
+       unsigned char hash_len;
+       unsigned char num_chunks;
+       uint32_t num_commits;
+       struct object_id oid;
+
+       const uint32_t *chunk_oid_fanout;
+       const unsigned char *chunk_oid_lookup;
+       const unsigned char *chunk_commit_data;
+       const unsigned char *chunk_large_edges;
+};
+
+struct commit_graph *load_commit_graph_one(const char *graph_file);
+
 void write_commit_graph(const char *obj_dir);
 
 #endif