Summary:
This is a long time coming effort to improve the situation around the local e2e script that in the release crew: the current bash-based script is quirky at best, and what you end up generating as a sample project is not really a true sample project. This is where this PR comes in: it migrates the flow from `./scripts/test-manual-e2e.sh` to `yarn test-e2e-local <options>`.
Here's the current shape of the options:
```sh
Options:
--help Show help [boolean]
--version Show version number [boolean]
-t, --target [choices: "RNTester", "RNTestProject"] [default: "RNTester"]
-p, --platform [choices: "iOS", "Android"] [default: "iOS"]
-h, --hermes [boolean] [default: true]
```
The idea is to change it so that you can just run the script, and it will do that one specific thing "well", without the tester needing to do anything aside from actually testing the app once it's open.
Some of the key changes:
* tries to stick to the patterns of the other established *.js based scripts, in terms of tooling and approach (and even refactor parts that can be shared with other scripts) - like the android artifacts generation
* no need to start the android emulator on the side
* no need to start Metro on the side
* RNTester iOS will open up on the simulator (no Xcode open that then you need to press)
Things that still need work:
* see the #fixme and #todo in comments
* because we rely on exec, the output sent back is not formatted/shaped correctly so it's a bit more noisy/chaotic - but can't handle it right now because the package we use doesn't allow it - see https://github.com/shelljs/shelljs/issues/86
## Changelog
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[Internal] [Changed] - Migrate bash E2E local testing script to new JS based command
Pull Request resolved: https://github.com/facebook/react-native/pull/34513
Test Plan:
To test the script, you can run it passing the options showed above; this is the current situation:
* RNTester iOS Hermes ✅
* RNTester Android Hermes ✅
* RNTester iOS JSC ✅
* RNTester Android JSC ✅
* RNTestProject Android Hermes ✅
* RNTestProject iOS Hermes ✅
* RNTestProject Android JSC ✅
* RNTestProject iOS JSC ✅
Reviewed By: cortinico
Differential Revision: D39814692
Pulled By: cortinico
fbshipit-source-id: d4791798aaad764c6a3757269b7636f847ccf2ca
Lorenzo Sciandra