var gulp = require('gulp')
var responsive = require('gulp-responsive')

gulp.task('default', function () {
  return gulp
    .src('src/*.{png,jpg}')
    .pipe(
      responsive({
        'background-*.jpg': {
          width: 700,
          quality: 50
        },
        'cover.png': {
          width: '50%',
          // convert to jpeg format
          format: 'jpeg',
          rename: 'cover.jpg'
        },
        // produce multiple images from one source
        'logo.png': [
          {
            width: 200
          },
          {
            width: 200 * 2,
            rename: '[email protected]'
          }
        ]
      })
    )
    .pipe(gulp.dest('dist'))
})