Build example with metalsmith

build.js

'use strict';

const Metalsmith = require('metalsmith');
const markdown = require('metalsmith-markdown');
const layouts = require('metalsmith-layouts');
const render = require('metalsmith-in-place');
const collections = require('metalsmith-collections');
const permalinks = require('metalsmith-permalinks');
const branch = require('metalsmith-branch');
const shell = require('shelljs');

function collection(collectionName) {
  return function(filename, props) {
    return props && props.collection && props.collection.indexOf(collectionName) >= 0;
  }
}


Metalsmith(__dirname)
  .use(collections({
    pages: {
      pattern: 'pages/*.*'
    },
    rules: {
      pattern: 'docs/rules/*.*'
    },
    docs : {
      pattern: 'docs/*.*'
    }
  }))
  .use(markdown())
  .use(permalinks({
    pattern: ':collection/:title'
  }))
  .use(branch(collection('rules')).use(permalinks({ // Special permalink for rules to render rules docs under docs
    pattern: 'docs/:collection/:title'
  })))
  .use(layouts('handlebars'))
  .use(render('handlebars'))
  .destination('./build')
  .build(function(err, files) {
    if (err) { throw err; }

    shell.cp('-rf', 'build/*', '../serve');
  });