123456789101112131415161718192021222324252627282930313233343536373839404142
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
import { CheckCommand } from "../args.ts";import { colors } from "../deps.ts";import { runPreBuild } from "../pre_build.ts";
export async function runCheckCommand(args: CheckCommand) {  const output = await runPreBuild(args);  const originalHash = await getOriginalSourceHash();  if (originalHash === output.sourceHash) {    console.log(      `${colors.bold(colors.green("Success"))} ` +        `wasmbuild output is up to date.`,    );  } else {    console.error(      `${colors.bold(colors.red("Error"))} ` +        `wasmbuild output is out of date (found hash ${output.sourceHash}, expected ${originalHash}).`,    );    Deno.exit(1);  }
  async function getOriginalSourceHash() {    try {      return getSourceHashFromText(        await Deno.readTextFile(output.bindingJsPath),      );    } catch (err) {      if (err instanceof Deno.errors.NotFound) {        return undefined;      } else {        throw err;      }    }  }
  function getSourceHashFromText(text: string) {    const result = text.match(/source-hash: (.+)\b/);    return result?.[1];  }}