marionebl/jogwheel

var babel = require('gulp-babel');
var cached = require('gulp-cached');
var sourcemaps = require('gulp-sourcemaps');
var remember = require('gulp-remember');
var sequence = require('gulp-sequence');
var onError = require('./helpers/on-error');

function babelTask(gulp, source, target, options) {
    var name = 'transpile:' + [source, target].join(' → ');
    gulp.task(name, function () {
        return gulp.src(source)
            .pipe(cached(name))
//            .pipe(sourcemaps.init())
            .pipe(babel().on('error', onError(options)))
//            .pipe(sourcemaps.write('.'))
            .pipe(remember(name))
            .pipe(gulp.dest(target));
    });
    return name;
}

module.exports = function (gulp, paths, options) {
    return function transpile(cb) {
        /* @desc transpile sources */
        return sequence([
            babelTask(gulp, paths.source.library, paths.target.library, options),
            babelTask(gulp, paths.source.scripts, paths.target.scripts, options),
            babelTask(gulp, paths.source.test, paths.target.test, options)
        ])(cb);
    };
};