Add caching to the build

Author: CompuIves

.circleci/config.yml

@@ -65,6 +65,7 @@ jobs:
           key: v17-prod-app-build-cache-{{ .Environment.CIRCLE_BRANCH }}-{{ .Environment.CIRCLE_SHA1 }}
           paths:
             - ./packages/app/www
+            - ./packages/app/.cache-loader
       - save_cache:
           key: v17-prod-build-cache-{{ .Environment.CIRCLE_BRANCH }}-{{ .Environment.CIRCLE_SHA1 }}
           paths:

.gitignore

@@ -28,3 +28,4 @@ lerna-debug.log
 standalone-packages/monaco-editor-core
 
 .next
+.cache-loader

packages/app/config/webpack.common.js

@@ -22,6 +22,14 @@ const babelConfig = __DEV__ ? babelDev : babelProd;
 
 const publicPath = SANDBOX_ONLY || __DEV__ ? '/' : getHost.default() + '/';
 
+let threads = 1;
+
+try {
+  threads = Math.max(1, require('os').cpus().length - 1);
+} catch (e) {
+  threads = 3;
+}
+
 // Shim for `eslint-plugin-vue/lib/index.js`
 const ESLINT_PLUGIN_VUE_INDEX = `module.exports = {
   rules: {${fs
@@ -334,12 +342,13 @@ module.exports = {
   plugins: [
     new HappyPack({
       loaders: [
+        'cache-loader',
         {
           path: 'babel-loader',
           query: babelConfig,
         },
       ],
-      threads: Math.max(1, require('os').cpus().length - 1),
+      threads,
     }),
     ...(SANDBOX_ONLY
       ? [

packages/app/package.json

@@ -67,6 +67,7 @@
     "babel-preset-env": "^1.6.0",
     "babel-preset-react": "^6.24.1",
     "buffer-loader": "^0.0.1",
+    "cache-loader": "^2.0.1",
     "case-sensitive-paths-webpack-plugin": "^2.0.0",
     "chalk": "1.1.3",
     "connect-history-api-fallback": "1.3.0",

yarn.lock

@@ -6140,6 +6140,17 @@ cache-base@^1.0.1:
     union-value "^1.0.0"
     unset-value "^1.0.0"
 
+cache-loader@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/cache-loader/-/cache-loader-2.0.1.tgz#5758f41a62d7c23941e3c3c7016e6faeb03acb07"
+  integrity sha512-V99T3FOynmGx26Zom+JrVBytLBsmUCzVG2/4NnUKgvXN4bEV42R1ERl1IyiH/cvFIDA1Ytq2lPZ9tXDSahcQpQ==
+  dependencies:
+    loader-utils "^1.1.0"
+    mkdirp "^0.5.1"
+    neo-async "^2.6.0"
+    normalize-path "^3.0.0"
+    schema-utils "^1.0.0"
+
 cache-manager-fs-hash@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/cache-manager-fs-hash/-/cache-manager-fs-hash-0.0.6.tgz#fccc5a6b579080cbe2186697e51b5b8ff8ca9fd0"
@@ -16920,6 +16931,11 @@ neo-async@^2.5.0:
   version "2.5.1"
   resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.5.1.tgz#acb909e327b1e87ec9ef15f41b8a269512ad41ee"
 
+neo-async@^2.6.0:
+  version "2.6.0"
+  resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.0.tgz#b9d15e4d71c6762908654b5183ed38b753340835"
+  integrity sha512-MFh0d/Wa7vkKO3Y3LlacqAEeHK0mckVqzDieUKTT+KGxi+zIpeVsFxymkIiRpbpDziHc290Xr9A1O4Om7otoRA==
+
 nerf-dart@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/nerf-dart/-/nerf-dart-1.0.0.tgz#e6dab7febf5ad816ea81cf5c629c5a0ebde72c1a"