Check any Morph-powered page for duplicate styles.

morph-duplicate-style-checker.js

var page = require('webpage').create()
var system = require('system')

if (system.args.length === 1) {
    console.log('Usage: morph-style-checker.js <URL>')
    phantom.exit(1)
}

var url = system.args[1]

page.open(url, function (status) {
    if (status !== 'success') {
        console.log('Page load failed.')
        phantom.exit(1)
    }

    var styles = page.evaluate(function () {
        return Object.keys(Morph.styles)
    })

    var versions = {}

    styles.forEach(function (style) {
        var parts = style.split('/')
        var version = parts.splice(1, 1)
        var module = parts.join('/')

        if (!versions[module]) versions[module] = []

        versions[module].push(version)
    })

    var exitCode = 0

    Object.keys(versions).forEach(function (module) {
        if (versions[module].length > 1) {
            console.log(module, 'has multiple versions:', versions[module].sort().join(', '))

            exitCode = 1
        }
    })

    phantom.exit(exitCode)
})