npm run build does not produce the webpack file cache

[hkjeffchan]

Is there an existing issue for this?

• I have searched the existing issues

Current behavior

webpack/webpack#12345

compiler.close() should be called somewhere.
I tried to fix it by calling compiler.close() in lib/compiler/webpack-compiler.ts but it does now work

Minimum reproduction code

https://github.com/hkjeffchan/nestjsCliWebpackCacheDemo

Steps to reproduce

1. npm run build does not produce the webpack file cache
2. npm run start:dev does produce the webpack file cache

Expected behavior

npm run build should produce the webpack file cache

Package version

9.3.0

NestJS version

9.3.11

Node.js version

18.15.0

In which operating systems have you tested?

• macOS
• Windows
• Linux

Other

No response

[hkjeffchan]

I tried to modify lib/compiler/webpack-compiler.ts and add this before compiler.run(afterCallback);

            compiler.hooks.shutdown.tap('shutdown', () => {
              console.log('shutdown');
              compiler.close(); 
            });

This does not work as this is not called.

            compiler.hooks.done.tap('done', () => {
              console.log('done');
              compiler.close(); 
            });

This does create the cache directory and it said "webpack 5.76.2 compiled successfully" but i got the following errors:

/Applications/MAMP/htdocs/nest-playground/node_modules/webpack/lib/HookWebpackError.js:68
                callback(null, result);
                ^

TypeError: callback is not a function
    at /Applications/MAMP/htdocs/nest-playground/node_modules/webpack/lib/HookWebpackError.js:68:3
    at _done (eval at create (/Applications/MAMP/htdocs/nest-playground/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:9:1)
    at eval (eval at create (/Applications/MAMP/htdocs/nest-playground/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:34:22)

[hkjeffchan]

I fixed it... a callback function is required for compiler.close()

created a PR for this

[hkjeffchan]

#1997

[kamilmysliwiec]

Let's track this here #1997