init postcss config

1 files changed, 37 insertions, 0 deletions

diff --git a/postcss.config.js b/postcss.config.js
new file mode 100644
index 0000000..eefa272
--- /dev/null
+++ b/postcss.config.js
@@ -0,0 +1,37 @@
+const purgecss = require('@fullhuman/postcss-purgecss')({
+  content: ['./hugo_stats.json'],
+  defaultExtractor: content => {
+    let els = JSON.parse(content).htmlElements;
+    return els.tags.concat(els.classes, els.ids);
+  },
+});
+
+module.exports = {
+  plugins: [
+    require('postcss-import'),
+    require('autoprefixer'),
+    require('postcss-scss')({
+      parser: require('postcss-scss').parse,
+      includePaths: ['node_modules'],
+    }),
+    require('postcss-node-sass')({
+      includePaths: ['node_modules'],
+    }),
+    ...(process.env.HUGO_ENVIRONMENT === 'production' ? [purgecss] : []),
+    require('@fullhuman/postcss-purgecss')({
+      content: ['layouts/**/*.html'],
+      whitelist: [
+        'highlight',
+        'language-bash',
+        'pre',
+        'code',
+        'content',
+        'h3',
+        'h4',
+        'ul',
+        'li',
+      ],
+    }),
+    require('cssnano')({ preset: 'default' }),
+  ],
+};