fix(index): simplify config loading behaviour (#259)

Author: michael-ciniawsky

lib/index.js

@@ -47,43 +47,43 @@ module.exports = function loader (css, map) {
 
   validateOptions(require('./options.json'), options, 'PostCSS Loader')
 
-  const rc = {
-    path: path.dirname(file),
-    ctx: {
-      file: {
-        extname: path.extname(file),
-        dirname: path.dirname(file),
-        basename: path.basename(file)
-      },
-      options: {}
-    }
-  }
+  const sourceMap = options.sourceMap
 
-  if (options.config) {
-    if (options.config.path) {
-      rc.path = path.resolve(options.config.path)
-    }
+  Promise.resolve().then(() => {
+    const length = Object.keys(options)
+      .filter((option) => {
+        // if (option === 'exec') return
+        if (option === 'config') return
+        if (option === 'sourceMap') return
 
-    if (options.config.ctx) {
-      rc.ctx.options = options.config.ctx
+        return option
+      })
+      .length
+
+    if (length) {
+      return parseOptions.call(this, options)
     }
-  }
 
-  const sourceMap = options.sourceMap
+    const rc = {
+      path: path.dirname(file),
+      ctx: {
+        file: {
+          extname: path.extname(file),
+          dirname: path.dirname(file),
+          basename: path.basename(file)
+        },
+        options: {}
+      }
+    }
 
-  Promise.resolve().then(() => {
-    const length = Object.keys(options).length
+    if (options.config) {
+      if (options.config.path) {
+        rc.path = path.resolve(options.config.path)
+      }
 
-    // TODO
-    // Refactor
-    if (!options.config && !sourceMap && length) {
-      return parseOptions.call(this, options)
-    } else if (options.config && !sourceMap && length > 1) {
-      return parseOptions.call(this, options)
-    } else if (!options.config && sourceMap && length > 1) {
-      return parseOptions.call(this, options)
-    } else if (options.config && sourceMap && length > 2) {
-      return parseOptions.call(this, options)
+      if (options.config.ctx) {
+        rc.ctx.options = options.config.ctx
+      }
     }
 
     return postcssrc(rc.ctx, rc.path, { argv: false })