node.js - Including concatenated scripts asynchronously with gulp.js -

i'm trying following:

gulp.src('js/*.js')     .pipe(concat('_temp.js'))     .pipe(gulp.dest('js/'));  gulp.src('build/js/app.js')     .pipe(replace('// includes', fs.readfilesync('js/_temp.js')))     .pipe(uglify())     .pipe(rename('app.min.js'))     .pipe(gulp.dest('build/js')); 

so, i'm concatenating .js files in js/. concatenated file named _temp.js;

after that, i'm reading app.js , try replace // includes string concatenated _temp.js file. doesn't work node says file doesn't exist. exist though, second time run task, works.

this has asynchronisity, i'm unable see how differently?

you can split task 2 , make 1 of tasks run after using gulp's dependency resolution system.

gulp.task('task1', function () { ... }); gulp.task('task2', ['task1'], function () { ... });