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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { encode as base64Encode } from "../../encoding/base64.ts";
// 1. build wasmasync function buildWasm(path: string): Promise<void> {  const cmd = [    "wasm-pack",    "build",    "--target",    "web",    "--release",    "-d",    path,  ];  const builder = Deno.run({ cmd });  const status = await builder.status();
  if (!status.success) {    console.error(`Failed to build wasm: ${status.code}`);    Deno.exit(1);  }}
// 2. encode wasmasync function encodeWasm(wasmPath: string): Promise<string> {  const wasm = await Deno.readFile(`${wasmPath}/deno_hash_bg.wasm`);  return base64Encode(wasm);}
// 3. generate scriptasync function generate(wasm: string, output: string): Promise<void> {  const initScript = await Deno.readTextFile(`${output}/deno_hash.js`);  const denoHashScript =    "/* eslint-disable */\n" +    "//deno-fmt-ignore-file\n" +    "//deno-lint-ignore-file\n" +    `import * as base64 from "../../encoding/base64.ts";` +    `export const source = base64.decode("${wasm}");` +    initScript;
  await Deno.writeFile("wasm.js", new TextEncoder().encode(denoHashScript));}
const OUTPUT_DIR = "./out";
await buildWasm(OUTPUT_DIR);const wasm = await encodeWasm(OUTPUT_DIR);await generate(wasm, OUTPUT_DIR);