Test of wrapped metalsmith-browser-sync plugin.

build.js

#!/usr/bin/env node

var Metalsmith = require('metalsmith'),
    browserSync = require('metalsmith-browser-sync');

// Hard-coded value. In more complex scripts, this value is read from 
// CLI args.
var isWatchEnabled = true;

var browserSyncOptions = {
    server: 'output',
    files: [
        'src/index.html' // Only watch for index file changes.
    ],
    port: process.env.PORT || 3000
};

// Define the Metalsmith file processing pipeline.
Metalsmith(__dirname)
    .source('./src/')
    .destination('./output/')
    .clean(false)

    // Conditionally watch and serve with BrowserSync.
    .use(conditionalWatchMode(browserSync(browserSyncOptions)))
    
    .build(function (err, files) {
        if (err) throw err;
    
        console.log('Build successful.');
    });

function conditionalWatchMode (plugin) {
    return function (files, metalsmith, done) {
        if (isWatchEnabled) {
            plugin(files, metalsmith, done);
        } else {
            done();
        }
    };
}

package.json

{
  "name": "metalsmith-browsersync-plugin-test",
  "version": "1.0.0",
  "description": "Test of metalsmith-browser-sync plugin.",
  "private": true,
  "main": "build.js",
  "author": "Clay Carpenter",
  "license": "ISC",
  "dependencies": {
    "metalsmith": "^1.6.0",
    "metalsmith-browser-sync": "git://github.com/mdvorscak/metalsmith-browser-sync.git",
    "yargs": "^3.8.0"
  }
}