Performance Changes 🚀

lib/utils/babel-config.js

@@ -3,6 +3,7 @@ import fs from 'fs'
 import path from 'path'
 import json5 from 'json5'
 import startsWith from 'lodash/startsWith'
+import objectAssign from 'object-assign'
 import invariant from 'invariant'
 
 const DEFAULT_BABEL_CONFIG = {
@@ -65,7 +66,7 @@ function normalizeConfig (config, directory) {
     normalizedConfig.plugins.push(resolvePlugin(plugin, directory, 'plugin'))
   })
 
-  return normalizedConfig
+  return objectAssign({}, config, normalizedConfig)
 }
 
 /**
@@ -118,5 +119,9 @@ export default function babelConfig (program, stage) {
     babelrc.presets.unshift('react-hmre')
   }
 
+  if (!babelrc.hasOwnProperty('cacheDirectory')) {
+    babelrc.cacheDirectory = true
+  }
+
   return normalizeConfig(babelrc, directory)
 }

lib/utils/glob-pages.js

@@ -2,9 +2,7 @@ import glob from 'glob'
 import buildPage from './build-page'
 const debug = require('debug')('gatsby:glob')
 
-module.exports = (directory, callback) => {
-  const pagesData = []
-
+function globQuery (directory) {
   // Make this list easy to modify through the config?
   // Or just keep adding extensions...?
   const fileTypesToGlob = [
@@ -20,15 +18,30 @@ module.exports = (directory, callback) => {
   ]
   const fileGlobQuery = fileTypesToGlob.map((type) => `*.${type}`)
   const joinedFileQuery = fileGlobQuery.join('|')
-  const globQuery = `${directory}/pages/**/?(${joinedFileQuery})`
-  glob(globQuery, null, (err, pages) => {
+  return `${directory}/pages/**/?(${joinedFileQuery})`
+}
+
+let globCache
+function createCache (directory, callback) {
+  const pagesData = []
+
+  glob(globQuery(directory), null, (err, pages) => {
     if (err) { return callback(err) }
 
     pages.forEach((page) => {
       pagesData.push(buildPage(directory, page))
     })
 
     debug(`globbed ${pagesData.length} pages`)
+    globCache = pagesData
     return callback(null, pagesData)
   })
 }
+
+module.exports = function globPages (directory, callback) {
+  if (typeof globCache === 'undefined') {
+    createCache(directory, callback)
+  } else {
+    callback(null, globCache)
+  }
+}

lib/utils/webpack.config.js

@@ -154,11 +154,9 @@ module.exports = (program, directory, stage, webpackPort = 1500, routes = []) =>
         '.toml',
         '.yaml',
       ],
-      modulesDirectories: [
+      root: [
         directory,
-        `${__dirname}/../isomorphic`,
-        `${directory}/node_modules`,
-        'node_modules',
+        path.resolve(__dirname, '..', 'isomorphic'),
       ],
     }
   }
@@ -365,11 +363,12 @@ module.exports = (program, directory, stage, webpackPort = 1500, routes = []) =>
     devtool: devtool(),
     output: output(),
     resolveLoader: {
+      root: [
+        path.resolve(directory, 'loaders'),
+        path.resolve(__dirname, '..', 'loaders'),
+      ],
       modulesDirectories: [
-        `${directory}/node_modules`,
-        `${directory}/loaders`,
-        `${__dirname}/../../node_modules`,
-        `${__dirname}/../loaders`,
+        'node_modules',
       ],
     },
     plugins: plugins(),