Tslint: [Feature Request] Add include in linterOptions

[doliG]

Bug Report

• __TSLint version__: 5.10.0
• __TypeScript version__: 2.4.2
• __Running TSLint via__: npm run lint with pre-commit hook (husky)

TypeScript code being linted

All our app code is being linted.

with tslint.json configuration:

{
    "rulesDirectory": [
      "node_modules/codelyzer"
    ],
    "rules": {
        // Lot of stuff here...
    },
    "linterOptions": {
      "exclude": [
        "node_modules/**",
        "src/app/admin/**",
        "src/app/core/**",
        "src/app/custom/**",
        "src/app/feedbacks/**",
        "src/app/formats/**",
        "src/app/groups/**",
        "src/app/login/**",
        "src/app/main/**",
        "src/app/meets/**",
        "src/app/profile/**",
        "src/app/server/**",
        "src/app/shared/**",
        "src/app/store/**",
        "src/app/widget/**",
        "src/app/**",
        "src/**",
        "test/**",
        "*"
      ]
    }
  }

Actual behavior

Well, my team and I want to gradually adopt tslint, to have a consistant coding style.
However, the only way I found is to exclude all our app folders in linter options. And this is pretty messy.

I have looked for another better suitable option, but found none.

Expected behavior

To have an include option in linterOptions. I think this way, it will be really more simple to adopt progressively tslint.

Thanks guys :)

[johnwiseheart]

I agree this would be a good idea! Happy to review PRs by anyone interested in taking this on.

[VladimirMilenko]

I will pick it up

[JoshuaKGoldberg]

💀 _It's time!_ 💀

TSLint is being deprecated and no longer accepting pull requests for major new changes or features. See #4534. 😱

If you'd like to see this change implemented, you have two choices:

• Recommended: Check if this is available in ESLint + typescript-eslint ✅
• _Not Recommended: Fork TSLint locally_ 🤷‍♂️

👋 It was a pleasure open sourcing with you!

_If you believe this message was posted here in error, please comment so we can re-open the issue!_

[JoshuaKGoldberg]

🤖 Beep boop! 👉 TSLint is deprecated 👈 _(#4534)_ and you should switch to typescript-eslint! 🤖

🔒 This issue is being locked to prevent further unnecessary discussions. Thank you! 👋