不能与Gulp一起使用vinylPaths del

Question

I have the following gulp task, basically what it does is:

• compile all .styl files
• put the result in theme/app folder
• minify all file in theme/app folder
• concatenate all file in folder theme/app folder to a single file
• add some license information to the file
• save result in folder theme
• delete all files in theme/app folder

I cannot make work the last step, I need to delete all files in theme/app . I have not specific error, what could could be wrong in my script and how to solve it?

---

   gulp.task('_release-theme:compile', function () {
        gulp.src([
            'app/**/*.styl',
            '!app/**/**mixins**.styl',
            '!app/**/**variables**.styl',
        ])
        .pipe(stylus({
            compress: false,
            use: nib()
        }))
        .pipe(gulp.dest('theme/app'))
        .pipe(cleanCSS())
        .pipe(concat('theme.css'))
        .pipe(header(fs.readFileSync('licenses/app.txt', 'utf8')))
        .pipe(gulp.dest('theme/'))
        .pipe(vinylPaths(del['theme/app/**/*'])); // problem here
    });

Answer 1

del is a function. Your object property access del['theme/app/**/*'] makes no sense here.

Instead listen for the end event in your stream and then delete the files using rimraf :

var rimraf = require('rimraf');

gulp.task('_release-theme:compile', function (done) {
    gulp.src([
        'app/**/*.styl',
        '!app/**/**mixins**.styl',
        '!app/**/**variables**.styl',
    ])
    .pipe(stylus({
        compress: false,
        use: nib()
    }))
    .pipe(gulp.dest('theme/app'))
    .pipe(cleanCSS())
    .pipe(concat('theme.css'))
    .pipe(header(fs.readFileSync('licenses/app.txt', 'utf8')))
    .pipe(gulp.dest('theme/'))
    .on('end', function() {
      rimraf('theme/app/**/*', done);
    });
});