From Grunt to Gulp

Question

I am currently experimenting with converting my Grunt files to Gulp files. My first try was with a quite simple file which simply runs JSHint and Mocha, and has a watch mode. My first result was quite … well … disillusioning. I encountered several problems, and I hope that there is a way to solve them: - I realized that Gulp runs all the tasks asynchronously. If I want to wait for a task to finish, the documentation tells me to use a callback, a promise or to return a stream. But how do I do this with `gulp-mocha` and `gulp-jshint`? Do these plugins support this? - A failing `gulp-jshint` did not fail the build. How do I tell Gulp to stop proceeding if `gulp-jshint` failed? - Using `watch` mode as described in Gulp's getting started guide resulted in a `Too many open files` error when running `gulp`. Any idea of what might be wrong? (Please note that I intentionally did not specify source code here, as the first two questions are general questions, and the last one refers to the defau…

Accepted Answer

Regarding task dependencies, the simplest solution is to return the gulp stream from the task, and depend on that task.

In the code below, if the "server" task does not return the stream, it would be run asynchronously, resulting in the "serve" task attempting to run a server using a non-existing file.

```
gulp.task('server', function () {
  return gulp.src('server/**/*.coffee')
      .pipe(coffeescript())
      .pipe(gulp.dest('./dist/'));
});

var expressServer;

gulp.task('serve', ['server'], function () {
  var apiServer = require('./dist/server');
  expressServer = apiServer(function (server) {
    server.use(livereload({
      port: livereloadport
    }));

});

expressServer.listen(serverport);

//Set up your livereload server
  lrserver.listen(livereloadport);
});
```

From Grunt to Gulp

Solution

Problem