Use new flarum-gulp package.

extensions/sticky/js/Gulpfile.js

@@ -1,45 +1,5 @@
-var gulp = require('gulp');
-var livereload = require('gulp-livereload');
-var concat = require('gulp-concat');
-var argv = require('yargs').argv;
-var uglify = require('gulp-uglify');
-var gulpif = require('gulp-if');
-var babel = require('gulp-babel');
-var cached = require('gulp-cached');
-var remember = require('gulp-remember');
-var merge = require('merge-stream');
-var streamqueue = require('streamqueue');
+var gulp = require('flarum-gulp');
 
-var staticFiles = [
-  'bootstrap.js'
-];
-var moduleFiles = [
-  'src/**/*.js'
-];
-var modulePrefix = 'sticky';
-
-gulp.task('default', function() {
-  return streamqueue({objectMode: true},
-    gulp.src(moduleFiles)
-      .pipe(cached('scripts'))
-      .pipe(babel({ modules: 'amd', moduleIds: true, moduleRoot: modulePrefix }))
-      .pipe(remember('scripts')),
-    gulp.src(staticFiles)
-      .pipe(babel())
-  )
-    .pipe(concat('extension.js'))
-    .pipe(gulpif(argv.production, uglify()))
-    .pipe(gulp.dest('dist'))
-    .pipe(livereload());
-});
-
-gulp.task('watch', ['default'], function () {
-  livereload.listen();
-  var watcher = gulp.watch(moduleFiles.concat(staticFiles), ['default']);
-  watcher.on('change', function (event) {
-    if (event.type === 'deleted') {
-      delete cached.caches.scripts[event.path];
-      remember.forget('scripts', event.path);
-    }
-  });
+gulp({
+  modulePrefix: 'flarum-sticky'
 });