From 67eb71f5c20b87f0796a492152381390d1f694fa Mon Sep 17 00:00:00 2001
From: Patrick Hulce <patrick.hulce@gmail.com>
Date: Sun, 16 Apr 2017 21:36:49 -0700
Subject: [PATCH] feat: passthrough nukecss options

---
 lib/handlers/css-handler.js                   | 6 ++----
 lib/handlers/handler.js                       | 7 +++++++
 lib/handlers/js-handler.js                    | 3 +--
 lib/index.js                                  | 1 +
 test/fixtures/webpack.config.js               | 3 +++
 test/fixtures/whitelisted/entry.extracted.css | 4 ++++
 test/index.test.js                            | 4 ++++
 7 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/lib/handlers/css-handler.js b/lib/handlers/css-handler.js
index a1bd04e..93a896f 100644
--- a/lib/handlers/css-handler.js
+++ b/lib/handlers/css-handler.js
@@ -1,5 +1,3 @@
-const _ = require('lodash')
-const nukecss = require('nukecss')
 const RawSource = require('webpack-sources').RawSource
 const SourceMapSource = require('webpack-sources').SourceMapSource
 
@@ -16,11 +14,11 @@ class CssHandler extends Handler {
       nukeCssOpts.sourceMap = {
         from: name,
         to: name,
-        inline: _.get(this._options, 'sourceMap.inline', false),
+        inline: false,
       }
     }
 
-    const nuked = nukecss(sourceContent, input, nukeCssOpts)
+    const nuked = this.nuke(sourceContent, input, nukeCssOpts)
     return this._options.sourceMap && nuked.map ?
       new SourceMapSource(nuked.css, name, nuked.map, input, inputSourceMap) :
       new RawSource(nuked.css || nuked)
diff --git a/lib/handlers/handler.js b/lib/handlers/handler.js
index d44627b..9f5287b 100644
--- a/lib/handlers/handler.js
+++ b/lib/handlers/handler.js
@@ -1,7 +1,14 @@
+const nukecss = require('nukecss')
+
 class Handler {
   constructor(options = {}) {
     this._options = options
   }
+
+  nuke(sources, css, options) {
+    options = Object.assign({}, this._options.nukecssOptions, options)
+    return nukecss(sources, css, options)
+  }
 }
 
 module.exports = Handler
diff --git a/lib/handlers/js-handler.js b/lib/handlers/js-handler.js
index 4bfd12c..eca06ce 100644
--- a/lib/handlers/js-handler.js
+++ b/lib/handlers/js-handler.js
@@ -2,7 +2,6 @@ const assert = require('assert')
 
 const _ = require('lodash')
 const esprima = require('esprima')
-const nukecss = require('nukecss')
 const debug = require('debug')('nukecss-webpack:js-handler')
 const ReplaceSource = require('webpack-sources').ReplaceSource
 
@@ -119,7 +118,7 @@ class JsHandler extends Handler {
       const startIndex = allCode.indexOf(code)
       const endIndex = startIndex + code.length
       try {
-        const replacement = JsHandler.replaceCss(code, css => nukecss(sourceContent, css))
+        const replacement = JsHandler.replaceCss(code, css => this.nuke(sourceContent, css))
         replacementAsset.replace(startIndex, endIndex, replacement)
       } catch (err) {
         // eslint-disable-next-line no-console
diff --git a/lib/index.js b/lib/index.js
index ab07755..45a508e 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -25,6 +25,7 @@ class NukeCssPlugin {
       sourceMap: false,
       sourceWhitelist: [],
       sourceBlacklist: [],
+      nukecssOptions: {},
     }, options)
 
     this._handlers = {
diff --git a/test/fixtures/webpack.config.js b/test/fixtures/webpack.config.js
index 224a775..a63656c 100644
--- a/test/fixtures/webpack.config.js
+++ b/test/fixtures/webpack.config.js
@@ -23,6 +23,9 @@ module.exports = {
       sourceMap: true,
       sourceWhitelist: ['whitelisted/'],
       sourceBlacklist: ['blacklisted.js'],
+      nukecssOptions: {
+        whitelist: ['unused-but-whitelisted']
+      }
     }),
     new webpack.optimize.UglifyJsPlugin({sourceMap: true}),
   ]
diff --git a/test/fixtures/whitelisted/entry.extracted.css b/test/fixtures/whitelisted/entry.extracted.css
index 4883db9..695ed99 100644
--- a/test/fixtures/whitelisted/entry.extracted.css
+++ b/test/fixtures/whitelisted/entry.extracted.css
@@ -41,6 +41,10 @@ a:hover {
   content: 'fa';
 }
 
+.unused-but-whitelisted {
+  content: 'fa';
+}
+
 .html-found {
   color: white;
 }
diff --git a/test/index.test.js b/test/index.test.js
index 9c1ff8f..82fbc53 100644
--- a/test/index.test.js
+++ b/test/index.test.js
@@ -89,4 +89,8 @@ describe('NukeCssPlugin', () => {
     expect(fileStats['out.css'].content).to.contain('.html-found')
     expect(fileStats['out.css'].content).to.not.contain('.html-ignored')
   })
+
+  it('should use nukecss options specified', () => {
+    expect(fileStats['out.css'].content).to.contain('.unused-but-whitelisted')
+  })
 })