spec-list.js

'use strict';

var assert = require('assert'),
  path = require('path'),
  glob = require('glob');

// If it's not a CI environment return the glob
// If it's a CI environment return the globs for the container
// Given a root path, get the full sorted list of specs using the glob
module.exports = function specList (rootPath, specGlob) {
  assert(rootPath && specGlob, 'root path and spec glob are required');
  var fullPath = path.join(rootPath, specGlob);
  if (!process.env.CI) {
    return [fullPath];
  }

  var CIRCLE_TOTAL = parseInt(process.env.CIRCLE_NODE_TOTAL, 10) || 1;
  var CIRCLE_INDEX = parseInt(process.env.CIRCLE_NODE_INDEX, 10) || 0;
  var specs = glob.sync(fullPath).sort().filter(function (file, idx) {
    return idx % CIRCLE_TOTAL === CIRCLE_INDEX;
  });

  console.info('SPECS\n', specs);
  return specs;
};