Null Webpack compiler after run Fixes #3272

5af78524659172b7a25445263457cac1c30f0858

Cohee <18619528+Cohee1207@users.noreply.github.com>

src/middleware/webpack-serve.js+11 -1 Viewed

 export default function getWebpackServeMiddleware() {
     const outputPath = publicLibConfig.output?.path;
     const outputFile = publicLibConfig.output?.filename;
-    const compiler = webpack(publicLibConfig);
+    /** @type {import('webpack').Compiler|null} */
+    let compiler = webpack(publicLibConfig);
     /**
      * A very spartan recreation of webpack-dev-middleware.

      */
     devMiddleware.runWebpackCompiler = () => {
         return new Promise((resolve) => {
+            if (compiler === null) {
+                console.warn('Webpack compiler is already closed.');
+                return resolve();
+            }
             console.log();
             console.log('Compiling frontend libraries...');
             compiler.run((_error, stats) => {

                     console.log(output);
                     console.log();
+                }
+                if (compiler === null) {
+                    return resolve();
+                }
                 compiler.close(() => {
+                    compiler = null;
                     resolve();
                 });
             });