feat: add nuxt.config.js to paths to purge classes used there

Author: TheAlexLichter

lib/module.js

@@ -22,7 +22,8 @@ function nuxtPurgeCss (moduleOptions) {
       'components/**/*.vue',
       'layouts/**/*.vue',
       'pages/**/*.vue',
-      'plugins/**/*.js'
+      'plugins/**/*.js',
+      'nuxt.config.js'
     ],
     styleExtensions: ['.css'],
     whitelist: ['body', 'html', 'nuxt-progress', '__nuxt', '__layout'],

test/fixture/assets/a.css

@@ -1,71 +1,75 @@
 h1 {
-    color: red
+  color: red
 }
 
 .unused {
-    color: blue
+  color: blue
 }
 
 .custom {
-    color: green
+  color: green
 }
 
 .whitelist {
-    color: black
+  color: black
 }
 
 .pattern-a {
-    color: red
+  color: red
+}
+
+.nuxt-config-class {
+  color: lightblue
 }
 
 .v-enter {
-    color: pink
+  color: pink
 }
 
 /* Default Vue Transitions */
 
 .v-enter-active {
-    color: violet
+  color: violet
 }
 
 .v-enter-to {
-    color: yellow
+  color: yellow
 }
 
 .v-leave {
-    color: aqua
+  color: aqua
 }
 
 .v-leave-active {
-    color: magenta
+  color: magenta
 }
 
 .v-leave-to {
-    color: brown
+  color: brown
 }
 
 /* Named Vue Transitions */
 
 .named-transition-enter {
-    color: pink
+  color: pink
 }
 
 .named-transition-enter-active {
-    color: violet
+  color: violet
 }
 
 .named-transition-enter-to {
-    color: yellow
+  color: yellow
 }
 
 .named-transition-leave {
-    color: aqua
+  color: aqua
 }
 
 .named-transition-leave-active {
-    color: magenta
+  color: magenta
 }
 
 .named-transition-leave-to {
-    color: brown
+  color: brown
 }

test/fixture/nuxt.config.js

@@ -0,0 +1,6 @@
+// THIS IS A DUMMY FILE TO ENSURE CLASSES ARE TAKEN INTO ACCOUNT HERE
+export default {
+  bodyAttrs: {
+    class: 'nuxt-config-class'
+  }
+}

test/module.test.js

@@ -144,7 +144,7 @@ describe('nuxt-purgecss', () => {
 
       const actualGlobalCSS = await getGlobalCSS('js')
       const expectedGlobalCSS = {
-        matching: ['h1{color:red}'],
+        matching: ['h1{color:red}', 'nuxt-config-class{'],
         notMatching: ['.unused', '.custom{', '.whitelist', '.pattern-a']
       }