eunomia-controller/distribution/generate/sitemap/sitemap.js

'use strict';

var fs = require('fs');
var ejs = require('ejs');
var common = require('./../../common');
var eunomia = require('./../../variables')('./eunomia.json');

exports.generate = function (publicPath) {
  return require('./../../task/index')('sitemap', function (resolve, reject) {
    // If the eunomia.json file does not exist
    if (!fs.existsSync('./eunomia.json')) {
      reject("Could not find the `eunomia.json` file in your project root");
    } else {
      // Broken eunomia json structure
      if (typeof eunomia === 'undefined' || eunomia === null) {
        reject("The `eunomia.json` contains broken JSON");
        return false;
      }

      // Missing generate structure within your json structure
      if (typeof eunomia.generate === 'undefined') {
        reject("Missing a top-level `generate` field within the eunomia.json file");
        return false;
      }

      // Missing sitemap structure within your generate json object
      if (typeof eunomia.generate.sitemap === 'undefined') {
        reject("Missing sitemap json object within the generate json object");
        return false;
      }

      // If the module is disabled
      if (typeof eunomia.generate.sitemap.enabled !== 'undefined') {
        if (!eunomia.generate.sitemap.enabled) {
          resolve();
          return false;
        }
      }

      // If the sitemap routes object are undefined
      if (typeof eunomia.generate.sitemap.routes === 'undefined') {
        reject("The eunomia json structure requires a generate.sitemap.routes json object");
      } else {
        // If the routes file does not exist
        if (!fs.existsSync(eunomia.generate.sitemap.routes)) {
          reject("file " + eunomia.generate.sitemap.routes + " does not exists");
        } else {
          try {
            var routes = JSON.parse(fs.readFileSync(eunomia.generate.sitemap.routes, 'utf8'));
            var fullPath = __dirname + '/sitemap.ejs';
            var template = fs.readFileSync(fullPath, 'utf8');
            var render = ejs.compile(template, { filename: fullPath });
            var urls = routes.filter(function (url) {
              return !url.path.includes(':');
            }).map(function (url) {
              return {
                loc: url.path
              };
            });
            var output = render({ config: eunomia.generate.sitemap, urls: urls });
            fs.writeFileSync(publicPath + '/sitemap.xml', output, 'utf8');
            resolve();
          } catch (e) {
            console.log(e);
            reject("Failed to create a sitemap.txt");
          }
        }
      }
    }
  });
};