Add and configure PurgeCSS

vuejs/package.json

@@ -9,6 +9,7 @@
     "test:unit": "vue-cli-service test:unit"
   },
   "dependencies": {
+    "@fullhuman/postcss-purgecss": "^1.2.0",
     "axios": "^0.18.0",
     "core-js": "^2.6.5",
     "postcss-import": "^12.0.1",

vuejs/postcss.config.js

@@ -3,6 +3,13 @@ module.exports = {
     require('postcss-import'),
     require('tailwindcss'),
     require('postcss-nested'),
-    require('autoprefixer')
+    require('autoprefixer'),
+    process.env.NODE_ENV === 'production' && require('@fullhuman/postcss-purgecss')({
+      content: [
+        './src/**/*.vue',
+        './public/index.html',
+      ],
+      defaultExtractor: content => content.match(/[A-Za-z0-9-_:/]+/g) || []
+    })
   ]
 }

vuejs/yarn.lock

@@ -667,6 +667,14 @@
     lodash "^4.17.11"
     to-fast-properties "^2.0.0"
 
+"@fullhuman/postcss-purgecss@^1.2.0":
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/@fullhuman/postcss-purgecss/-/postcss-purgecss-1.2.0.tgz#a3207a0e1812f8b56fa49fba5796a1020f2756a8"
+  integrity sha512-An05jbnZVUrX+VVNniaNQtOuo/S7tyQu5x86itXTF+7kfMaGxglFGykFX2KCt2hcbJijbvfCval9IkPO19V1KA==
+  dependencies:
+    postcss "^7.0.14"
+    purgecss "^1.3.0"
+
 "@intervolga/optimize-cssnano-plugin@^1.0.5":
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/@intervolga/optimize-cssnano-plugin/-/optimize-cssnano-plugin-1.0.6.tgz#be7c7846128b88f6a9b1d1261a0ad06eb5c0fdf8"
@@ -7782,6 +7790,16 @@ punycode@^1.2.4, punycode@^1.4.1:
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
   integrity sha1-wNWmOycYgArY4esPpSachN1BhF4=
 
+purgecss@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/purgecss/-/purgecss-1.3.0.tgz#fc3c303df9a74a75547545b2c0da28a9ec63da00"
+  integrity sha512-0UMnr8aUsPO7RbzAT72UELRvwMHhadtuunDm7rcgRS6b8pCVO8yglIqikiYFwQk2XP606mk+GpjI1G74Auxgtg==
+  dependencies:
+    glob "^7.1.3"
+    postcss "^7.0.14"
+    postcss-selector-parser "^6.0.0"
+    yargs "^13.2.2"
+
 q@^1.1.2:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/q/-/q-1.5.1.tgz#7e32f75b41381291d04611f1bf14109ac00651d7"
@@ -9994,6 +10012,14 @@ yargs-parser@^13.1.0:
     camelcase "^5.0.0"
     decamelize "^1.2.0"
 
+yargs-parser@^13.1.1:
+  version "13.1.1"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-13.1.1.tgz#d26058532aa06d365fe091f6a1fc06b2f7e5eca0"
+  integrity sha512-oVAVsHz6uFrg3XQheFII8ESO2ssAf9luWuAd6Wexsu4F3OtIW0o8IribPXYrD4WC24LWtPrJlGy87y5udK+dxQ==
+  dependencies:
+    camelcase "^5.0.0"
+    decamelize "^1.2.0"
+
 yargs-parser@^9.0.2:
   version "9.0.2"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-9.0.2.tgz#9ccf6a43460fe4ed40a9bb68f48d43b8a68cc077"
@@ -10054,6 +10080,22 @@ yargs@^13.0.0:
     y18n "^4.0.0"
     yargs-parser "^13.1.0"
 
+yargs@^13.2.2:
+  version "13.3.0"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-13.3.0.tgz#4c657a55e07e5f2cf947f8a366567c04a0dedc83"
+  integrity sha512-2eehun/8ALW8TLoIl7MVaRUrg+yCnenu8B4kBlRxj3GJGDKU1Og7sMXPNm1BYyM1DOJmTZ4YeN/Nwxv+8XJsUA==
+  dependencies:
+    cliui "^5.0.0"
+    find-up "^3.0.0"
+    get-caller-file "^2.0.1"
+    require-directory "^2.1.1"
+    require-main-filename "^2.0.0"
+    set-blocking "^2.0.0"
+    string-width "^3.0.0"
+    which-module "^2.0.0"
+    y18n "^4.0.0"
+    yargs-parser "^13.1.1"
+
 yorkie@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/yorkie/-/yorkie-2.0.0.tgz#92411912d435214e12c51c2ae1093e54b6bb83d9"