cli.js

#!/usr/bin/env node
'use strict';
const fs = require('fs');
const updateNotifier = require('update-notifier');
const meow = require('meow');
const pretty = require('eslint-formatter-pretty');
const marlint = require('./');

const cli = meow(
  {
    help: [
      'Usage',
      '  $ marlint [<file|glob> ...]',
      '',
      'Options',
      '  --quiet           Disable warning errors',
      '  --fix             Automagically fixes code',
      '  --json            Output JSON result to be consumed in other app',
      '  --jsonOutputFile  Specify filename to store the JSON result',
      '',
      'Examples',
      '  $ marlint',
      '  $ marlint --fix',
      '  $ marlint --quiet --json --jsonOutputFile lint-result.json',
      '',
      'Tips',
      '  Put options in package.json instead of using flags so other tools can read it.',
    ],
  },
  {
    boolean: ['json'],
  }
);

updateNotifier({ pkg: cli.pkg }).notify();

const input = cli.input;
const opts = cli.flags;

marlint
  .lintFiles(input, opts)
  .then(report => {
    if (opts.fix) {
      marlint.outputFixes(report);
    }

    const output = pretty(report.results);

    if (opts.json) {
      const eslintJson = require.resolve('eslint-json');
      const result = marlint.getFormatter(eslintJson)(report.results);

      if (opts.jsonOutputFile) {
        fs.writeFileSync(opts.jsonOutputFile, result);
        process.stdout.write(`Test results written to: ${opts.jsonOutputFile}`);
      }
    }

    process.stdout.write(output);
    process.exit(report.errorCount === 0 ? 0 : 1);
  })
  .catch(err => {
    console.error(err.stack);
    process.exit(1);
  });