check this.compiler.outputFileSystem.constructor is not undefined (#447)

* check this.compiler.outputFileSystem.constructor is not undefined * Fix trailing spaces lint * Update changelog with bug fix Co-authored-by: Vesa Laakso <482561+valscion@users.noreply.github.com>
webpack-contrib · May 17, 2021 · 2bcf474 · 2bcf474
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -12,6 +12,10 @@ _Note: Gaps between patch versions are faulty, broken or test releases._
 
 ## UNRELEASED
 
+ * **Bug Fix**
+   * Fix failure with `compiler.outputFileSystem.constructor` being `undefined` ([#447](https://github.com/webpack-contrib/webpack-bundle-analyzer/pull/447) by [@kedarv](https://github.com/kedarv) and [@alexander-akait](https://github.com/alexander-akait))
+     * **NOTE:** This fix doesn't have added test coverage so the fix might break in future versions unless test coverage is added later.
+
 ## 4.4.1
 
  * **Bug Fix**

diff --git a/src/BundleAnalyzerPlugin.js b/src/BundleAnalyzerPlugin.js
@@ -134,6 +134,9 @@ class BundleAnalyzerPlugin {
   }
 
   getBundleDirFromCompiler() {
+    if (typeof this.compiler.outputFileSystem.constructor === 'undefined') {
+      return this.compiler.outputPath;
+    }
     switch (this.compiler.outputFileSystem.constructor.name) {
       case 'MemoryFileSystem':
         return null;