init

lib/utils.ts

@@ -0,0 +1,12 @@
+export function decode(input: Uint8Array): string {
+  return new TextDecoder().decode(input);
+}
+
+export async function show_diff(a: string, b: string) {
+  const [path_a, path_b] = ["/tmp/diff_a", "/tmp/diff_b"];
+  await Deno.writeTextFile(path_a, a);
+  await Deno.writeTextFile(path_b, b);
+  await Deno.run({ cmd: ["diff", path_a, path_b] }).status();
+  await Deno.remove(path_a);
+  await Deno.remove(path_b);
+}