Use type checking within the generator

[Tcharl]

Overview of the feature request

Now that most of the generator is in typescript, type safety can be ensured removing all the any and enforcing attributes types (i.e. let myVar: string), function parameter types, and function return types.

Motivation for or Use Case

Type safety helps to avoid some mistakes, but also helps new jhipster contributors (and occasional contributors like me) to better understand how the generator is architectured: in the end, it speeds up the delivery of new features due to a better developper experience.

Related issues or PR

#26111
#26110
#26096

• Checking this box is mandatory (this is just to show you read everything)

[mshima]

I don’t understand the proposal.

[Tcharl]

Just to historize the work on making the generator more typescript friendly sir ;-)

[Tcharl]

@DanielFran I'll leave the bounty to anyone else willing to contribute to the overall rework

[irwansyahwii]

I will took this one @Tcharl

[irwansyahwii]

Too bad, I got error after cloning the repo and ran npm test. This is the message:

node:internal/bootstrap/switches/does_own_process_state:130
  rawMethods.chdir(directory);
             ^

Error: ENOENT: no such file or directory, chdir '/Users/irwansyah/Documents/PROJECTS/generator-jhipster' -> '/private/var/folders/v3/gklj4nxd11dd9kfq3s1d0mx80000gn/T/8e824baf2be964132208060d1db5de487b13863d'
    at wrappedChdir (node:internal/bootstrap/switches/does_own_process_state:130:14)
    at process.chdir (node:internal/worker:110:5)
    at process.chdir (/Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/graceful-fs/polyfills.js:22:11)
    at process.chdir (/Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/@pnpm/network.ca-file/node_modules/graceful-fs/polyfills.js:22:11)
    at JHipsterRunContext.restore (file:///Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/yeoman-test/dist/run-context.js:164:21)
    at JHipsterRunContext.cleanupTemporaryDir (file:///Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/yeoman-test/dist/run-context.js:183:14)
    at TestContext.startNewContext (file:///Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/yeoman-test/dist/test-context.js:6:26)
    at process.cleanupTemporaryDir (file:///Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/yeoman-test/dist/test-context.js:13:17)
    at process.emit (node:events:531:35)
    at process.processEmit [as emit] (/Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/restore-cursor/node_modules/signal-exit/index.js:191:37)
    at process.exit (node:internal/process/per_thread:185:15)
    at _exit (/Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/workerpool/src/worker.js:129:12)
    at worker.cleanupAndExit (/Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/workerpool/src/worker.js:133:12)
    at process.<anonymous> (/Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/workerpool/src/worker.js:148:19)
    at process.emit (node:events:519:28)
    at process.processEmit [as emit] (/Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/restore-cursor/node_modules/signal-exit/index.js:199:34) {
  errno: -2,
  code: 'ENOENT',
  syscall: 'chdir',
  path: '/Users/irwansyah/Documents/PROJECTS/generator-jhipster',
  dest: '/private/var/folders/v3/gklj4nxd11dd9kfq3s1d0mx80000gn/T/8e824baf2be964132208060d1db5de487b13863d'
}

Node.js v20.15.1

  9719 passing (4m)
  793 pending

[mshima]

Too bad, I got error after cloning the repo and ran npm test. This is the message:

node:internal/bootstrap/switches/does_own_process_state:130
  rawMethods.chdir(directory);
             ^

Error: ENOENT: no such file or directory, chdir '/Users/irwansyah/Documents/PROJECTS/generator-jhipster' -> '/private/var/folders/v3/gklj4nxd11dd9kfq3s1d0mx80000gn/T/8e824baf2be964132208060d1db5de487b13863d'
    at wrappedChdir (node:internal/bootstrap/switches/does_own_process_state:130:14)
    at process.chdir (node:internal/worker:110:5)
    at process.chdir (/Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/graceful-fs/polyfills.js:22:11)
    at process.chdir (/Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/@pnpm/network.ca-file/node_modules/graceful-fs/polyfills.js:22:11)
    at JHipsterRunContext.restore (file:///Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/yeoman-test/dist/run-context.js:164:21)
    at JHipsterRunContext.cleanupTemporaryDir (file:///Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/yeoman-test/dist/run-context.js:183:14)
    at TestContext.startNewContext (file:///Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/yeoman-test/dist/test-context.js:6:26)
    at process.cleanupTemporaryDir (file:///Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/yeoman-test/dist/test-context.js:13:17)
    at process.emit (node:events:531:35)
    at process.processEmit [as emit] (/Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/restore-cursor/node_modules/signal-exit/index.js:191:37)
    at process.exit (node:internal/process/per_thread:185:15)
    at _exit (/Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/workerpool/src/worker.js:129:12)
    at worker.cleanupAndExit (/Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/workerpool/src/worker.js:133:12)
    at process.<anonymous> (/Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/workerpool/src/worker.js:148:19)
    at process.emit (node:events:519:28)
    at process.processEmit [as emit] (/Users/irwansyah/Documents/PROJECTS/generator-jhipster/node_modules/restore-cursor/node_modules/signal-exit/index.js:199:34) {
  errno: -2,
  code: 'ENOENT',
  syscall: 'chdir',
  path: '/Users/irwansyah/Documents/PROJECTS/generator-jhipster',
  dest: '/private/var/folders/v3/gklj4nxd11dd9kfq3s1d0mx80000gn/T/8e824baf2be964132208060d1db5de487b13863d'
}

Node.js v20.15.1

  9719 passing (4m)
  793 pending

This error is in yeoman-test.
I didn’t take a look at it since everything is working as expected. Just a cleanup step is failing.