fix: close compiler on SIGINT

Author: snitin315

packages/serve/src/index.ts

@@ -128,6 +128,10 @@ class ServeCommand {
           return;
         }
 
+        process.on("SIGINT", () => {
+          compiler.close();
+        });
+
         const servers = [];
 
         if (cli.needWatchStdin(compiler) || devServerCLIOptions.stdin) {
@@ -153,7 +157,9 @@ class ServeCommand {
                 });
               }),
             ).then(() => {
-              process.exit(0);
+              compiler.close(() => {
+                process.exit(0);
+              });
             });
           });
           process.stdin.resume();

packages/webpack-cli/lib/webpack-cli.js

@@ -2125,14 +2125,20 @@ class WebpackCLI {
       return;
     }
 
+    process.on("SIGINT", () => {
+      compiler.close();
+    });
+
     const isWatch = (compiler) =>
       compiler.compilers
         ? compiler.compilers.some((compiler) => compiler.options.watch)
         : compiler.options.watch;
 
     if (isWatch(compiler) && this.needWatchStdin(compiler)) {
       process.stdin.on("end", () => {
-        process.exit(0);
+        compiler.close(() => {
+          process.exit(0);
+        });
       });
       process.stdin.resume();
     }