Function checkFiles

tools/lint-sh.mjs:57–145

(...files)

}

async function checkFiles(...files) {
  const flags = FIX_MODE_ENABLED ? 'r+' : 'r';
  await Promise.all(
    files.map(async (file) => {
      const fd = await fs.open(file, flags);
      if (await hasInvalidHashBang(fd)) {
        if (FIX_MODE_ENABLED) {
          const file = await fd.readFile();

          const fileContent =
            file[0] === '#'.charCodeAt() ?
              file.subarray(file.indexOf('\n') + 1) :
              file;

          const toWrite = Buffer.concat([expectedHashBang, fileContent]);
          await fd.truncate(toWrite.length);
          await fd.write(toWrite, 0, toWrite.length, 0);
        } else {
          process.exitCode ||= 1;
          console.error(
            (process.env.GITHUB_ACTIONS ?
              `::error file=${file},line=1,col=1::` :
              'Fixable with --fix: ') +
              `Invalid hashbang for ${file} (expected /bin/sh).`,
          );
        }
      }
      await fd.close();
    }),
  );

  const stdout = await new Promise((resolve, reject) => {
    const SHELLCHECK_EXE =
      process.env.SHELLCHECK ||
      execSync('command -v ' + (USE_NPX ? 'npx' : SHELLCHECK_EXE_NAME))
        .toString()
        .trim();
    const NPX_OPTIONS = USE_NPX ? [SHELLCHECK_EXE_NAME] : [];

    const shellcheck = spawn(
      SHELLCHECK_EXE,
      [
        ...NPX_OPTIONS,
        ...SHELLCHECK_OPTIONS,
        ...(FIX_MODE_ENABLED ?
          files.map((filePath) => relative(SPAWN_OPTIONS.cwd, filePath)) :
          files),
      ],
      SPAWN_OPTIONS,
    );
    shellcheck.once('error', reject);

    let json = '';
    let childProcess = shellcheck;
    if (FIX_MODE_ENABLED) {
      const GIT_EXE =
        process.env.GIT || execSync('command -v git').toString().trim();