Merge deno_cli_snapshots into deno_cli (#3064)

cli/js/dir.ts

@@ -0,0 +1,22 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+import { sendSync } from "./dispatch_json.ts";
+import * as dispatch from "./dispatch.ts";
+
+/**
+ * `cwd()` Return a string representing the current working directory.
+ * If the current directory can be reached via multiple paths
+ * (due to symbolic links), `cwd()` may return
+ * any one of them.
+ * throws `NotFound` exception if directory not available
+ */
+export function cwd(): string {
+  return sendSync(dispatch.OP_CWD);
+}
+
+/**
+ * `chdir()` Change the current working directory to path.
+ * throws `NotFound` exception if directory not available
+ */
+export function chdir(directory: string): void {
+  sendSync(dispatch.OP_CHDIR, { directory });
+}