const gulp = require('gulp');
const eslint = require('gulp-eslint');

const srcDir = [
  'src/*.js',
  'src/**/*.js',
];

function checkSrc() {
  return gulp.src(srcDir)
    .pipe(eslint())
    .pipe(eslint.format())
    .pipe(eslint.failAfterError());
}

function watchEslint() {
  gulp.watch(srcDir, checkSrc);
}

gulp.task('check:lint', checkSrc);
gulp.task('watch:lint', watchEslint);
gulp.task('default', gulp.parallel('watch:lint'));