import gulp from 'gulp'; import del from 'del'; import runSequence from 'run-sequence'; import PATHS from './helpers/src-paths'; gulp.task('build', (callback) => { runSequence('clean', ['build-cli', 'build-app'], callback); }); gulp.task('clean', (callback) => { del(PATHS.CLI_DEST).then(() => { del(PATHS.APP_DEST).then(() => { del(PATHS.TEST_DEST).then(() => { callback(); }); }); }); });