pipeline-wrapper

Combines multiple streams in a pipeline into a single stream.

Install with:

npm install --save pipeline-wrapper

Example:

myStream = new PipelineWrapper([x, y]);
otherStream.pipe(myStream); // This is equivalent to otherStream.pipe(x).pipe(y)

You can use this to make your gulp files more readable:

var coffee          = require('gulp-coffee');
var eslint          = require('gulp-eslint');
var PipelineWrapper = require('pipeline-wrapper');

// This is a pipeline that encompasses many child gulp steps.  We can reuse this in multiple build tasks.
function findUndefinedVariables() {
    return new PipelineWrapper([
        eslint({
            env: {
                browser: true,
                node: true
            },
            rules: {"no-undef": 2}
        ),
        eslint.format(),
        eslint.failAfterError()
    ],
    {objectMode: true});
}

gulp.task('build', function() {
   gulp.src("src/**/*.coffee")
   .pipe(coffee())
   .pipe(findUndefinedVariables());
});