Added Graph

types/nodegit/graph.d.ts

@@ -0,0 +1,7 @@
+import { Repository } from './repository';
+import { Oid } from './oid';
+
+export class Graph {
+    static aheadBehind(repo: Repository, local: Oid, upstream: Oid): Promise<number>;
+    static descendantOf(repo: Repository, commit: Oid, ancestor: Oid): Promise<number>;
+}

types/nodegit/index.d.ts

@@ -20,6 +20,7 @@ export { FetchOptions } from './fetch-options';
 export { Fetch } from './fetch';
 export { Filter } from './filter';
 export { Giterr } from './git-err';
+export { Graph } from './graph';
 export { Hashsig } from './hash-sig';
 export { Index } from './index_';
 export { IndexEntry } from './index-entry';

types/nodegit/tsconfig.json

@@ -33,6 +33,7 @@
         "fetch.d.ts",
         "filter.d.ts",
         "git-err.d.ts",
+        "graph.d.ts",
         "hash-sig.d.ts",
         "ignore.d.ts",
         "index-entry.d.ts",