do not insert style for server bundle + trim css

Author: yyx990803

lib/loader.js

@@ -32,6 +32,7 @@ var defaultLang = {
 
 module.exports = function (content) {
   this.cacheable()
+  var isServer = this.options.target === 'node'
   var loaderContext = this
   var options = this.options.vue || {}
   var query = loaderUtils.parseQuery(this.query)
@@ -133,17 +134,17 @@ module.exports = function (content) {
   }
 
   var parts = parse(content, fileName, this.sourceMap)
-  var hasScoped = false
+  var hasScoped = parts.styles.some(function (s) { return s.scoped })
   var output = 'var __vue_script__\n'
 
   // add requires for styles
-  parts.styles.forEach(function (style, i) {
-    var scoped = style.scoped
-    if (scoped) hasScoped = true
-    output += style.src
-      ? getRequireForImport('styles', style, scoped)
-      : getRequire('styles', style, i, scoped)
-  })
+  if (!isServer) {
+    parts.styles.forEach(function (style, i) {
+      output += style.src
+        ? getRequireForImport('styles', style, style.scoped)
+        : getRequire('styles', style, i, style.scoped)
+    })
+  }
 
   // add require for script
   var script = parts.script

lib/style-rewriter.js

@@ -27,6 +27,16 @@ var addId = postcss.plugin('add-id', function (opts) {
   }
 })
 
+var trim = postcss.plugin('trim', function (opts) {
+  return function (css) {
+    css.walk(function (node) {
+      if (node.type === 'rule' || node.type == 'atrule') {
+        node.raws.before = node.raws.after = '\n'
+      }
+    })
+  }
+})
+
 module.exports = function (css, map) {
   this.cacheable()
   var cb = this.async()
@@ -44,7 +54,7 @@ module.exports = function (css, map) {
   } else if (isObject(postcssOptions) && postcssOptions.plugins) {
     plugins = postcssOptions.plugins
   }
-  plugins = plugins ? plugins.slice() : [] // make sure to copy it
+  plugins = [trim].concat(plugins || [])
 
   // scoped css
   if (query.scoped) {