feat: allow publicPath to be overriten (#139)

Author: mastilver

README.md

@@ -51,19 +51,19 @@ module.exports = {
 }
 ```
 
-### `publicPath`
-
-Type: `String`
-
-A path prefix that will be added to values of the manifest.
-
 ### `options.fileName`
 
 Type: `String`<br>
 Default: `manifest.json`
 
 The manifest filename in your output directory.
 
+### `options.publicPath`
+
+Type: `String`
+Default: `output.publicPath`
+
+A path prefix that will be added to values of the manifest.
 
 ### `options.basePath`
 

lib/plugin.js

@@ -6,6 +6,7 @@ const emitCountMap = new Map();
 
 function ManifestPlugin(opts) {
   this.opts = _.assign({
+    publicPath: null,
     basePath: '',
     fileName: 'manifest.json',
     transformExtensions: /^(gz|map)$/i,
@@ -50,7 +51,7 @@ ManifestPlugin.prototype.apply = function(compiler) {
     const emitCount = emitCountMap.get(outputName) - 1
     emitCountMap.set(outputName, emitCount);
 
-    var publicPath = compilation.options.output.publicPath;
+    var publicPath = this.opts.publicPath != null ? this.opts.publicPath : compilation.options.output.publicPath;
     var stats = compilation.getStats().toJson();
 
     var files = compilation.chunks.reduce(function(files, chunk) {

spec/plugin.spec.js

@@ -153,22 +153,47 @@ describe('ManifestPlugin', function() {
       });
     });
 
-    it('prefixes paths with a public path', function(done) {
-      webpackCompile({
-        context: __dirname,
-        entry: {
-          one: './fixtures/file.js',
-        },
-        output: {
-          filename: '[name].[hash].js',
-          publicPath: '/app/'
-        }
-      }, {}, function(manifest, stats) {
-        expect(manifest).toEqual({
-          'one.js': '/app/one.' + stats.hash + '.js'
+    describe('publicPath', () => {
+      it('prefixes paths with a public path', function(done) {
+        webpackCompile({
+          context: __dirname,
+          entry: {
+            one: './fixtures/file.js',
+          },
+          output: {
+            filename: '[name].[hash].js',
+            publicPath: '/app/'
+          }
+        }, {}, function(manifest, stats) {
+          expect(manifest).toEqual({
+            'one.js': '/app/one.' + stats.hash + '.js'
+          });
+
+          done();
         });
+      });
 
-        done();
+      it('is possible to overrides publicPath', (done) => {
+        webpackCompile({
+          context: __dirname,
+          entry: {
+            one: './fixtures/file.js',
+          },
+          output: {
+            filename: '[name].[hash].js',
+            publicPath: '/app/'
+          }
+        }, {
+          manifestOptions: {
+            publicPath: '',
+          }
+        }, function(manifest, stats) {
+          expect(manifest).toEqual({
+            'one.js': 'one.' + stats.hash + '.js'
+          });
+
+          done();
+        });
       });
     });