readme.md

Recipies

Filtering custom events

When you want to make actions only on specific events, you can use gulp-filter and the event attribute, which is added to all files that were added, changed or deleted (per gaze's documentation):

var filter = require('gulp-filter');

function isAdded(file) {
    return file.event === 'added';
}

var filterAdded = filter(isAdded);

gulp.task('default', function () {
    watch('**/*.js')
        .pipe(filterAdded)
        .pipe(gulp.dest('newfiles'))
        .pipe(filterAdded.restore())
        .pipe(gulp.dest('oldfiles'));
});

Notice: event property is not added to files that were emitted by emitOnGlob and emit: 'all' options, only to files that actually caused the event.