feat: Automate the generation of screenshots for iOS and Android in various languages & screensizes

[teolemon]

What this currently does

• Create a matrix:
  • matrix: language: [fr, en]
  • country: [FR, UK]
  • platform: [ios, android]
  • device: [iPhone8Plus]
• Reuse the build pipeline
• Install Chrome Driver
• Start it (BUG)
• Run the command created by monsieurtanuki
• upload screenshots as build artefacts (before a more scalable solution)

Open questions

• Don't we need native emulators rather ?
• Why Chrome Driver ?
• Some people say ChromeDriver isn't working either because of wrong parameters, or because it's not run in a different process

Part of

• Automatic screenshot generation for Marketing & Tests #217

[teolemon]

ios: Run cd ./packages/smooth_app && flutter build ios --release --no-codesign
Error on line 3, column 10 of pubspec.yaml: Invalid version number: Could not parse "ots/android+219".
Running "flutter pub get" in smooth_app...
╷
3 │ version: ots/android+219
│ ^^^^^^^^^^^^^^^
╵
---- Log transcript ----
FINE: Pub 2.16.1
MSG : Resolving dependencies...
FINE: Resolving dependencies finished (0.1s).
ERR : Error on line 3, column 10 of pubspec.yaml: Invalid version number: Could not parse "ots/android+219".
| ╷
| 3 │ version: ots/android+219
| │ ^^^^^^^^^^^^^^^
| ╵
FINE: Exception type: PubspecException
FINE: package:pub/src/pubspec_parse.dart 245:7 PubspecBase._wrapFormatException
| package:pub/src/pubspec_parse.dart 87:16

[teolemon]

Android: build 2.2.1...
Downloading dart_style 2.2.2...
Downloading source_gen 1.2.1...
Downloading win32 2.4.1...
Connection closed while receiving data
pub finished with exit code 69
Error: Process completed with exit code 69.

[codecov-commenter]

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[teolemon]

PWD gives:
All SDK package licenses accepted.

/Users/runner/work/smooth-app/smooth-app/packages/smooth_app
WARNING | /etc/localtime does not point

[teolemon]

Questions:

• can we get rid of the rebuilding of the app ?
• can we change emulator locale on the fly without restarting it ?
  • adb shell am broadcast -a com.android.intent.action.SET_LOCALE --es com.android.intent.extra.LOCALE ES

[M123-dev]

Questions:

* can we get rid of the rebuilding of the app ?

Sure, we'd have to remove the matrix and loop through the variants in the tests

* can we change emulator locale on the fly without restarting it ?

We can already do it in the dev settings (It seems currently broken to me) but it's definitely possible

[teolemon]

https://github.com/ksheremet/flutter_actions/blob/master/.github/workflows/flutter-drive.yml

[teolemon]

I/flutter ( 2508): ══╡ EXCEPTION CAUGHT BY FLUTTER TEST FRAMEWORK ╞════════════════════════════════════════════════════
I/flutter ( 2508): The following assertion was thrown while running async test code:
I/flutter ( 2508): The finder "2 widgets with key [<'next'>] (ignoring offstage widgets):
I/flutter ( 2508): [NextButton-[<'next'>](dependencies: [_InheritedProviderScope<LocalDatabase?>,
I/flutter ( 2508): _LocalizationsScope-[GlobalKey#ef7d5], _InheritedProviderScope<UserPreferences?>]),
I/flutter ( 2508): OnboardingBottomBar-[<'next'>](dependencies: [MediaQuery])]" (used in a call to "tap()") ambiguously
I/flutter ( 2508): found multiple matching widgets. The "tap()" method needs a single target.

[monsieurtanuki]

I/flutter ( 2508): ══╡ EXCEPTION CAUGHT BY FLUTTER TEST FRAMEWORK

Working on it. Should be OK tomorrow.

[teolemon]

ERR : Error on line 3, column 10 of pubspec.yaml: Invalid version number: Could not parse "ots/android+719".
| ╷
| 3 │ version: ots/android+719
| │ ^^^^^^^^^^^^^^^
| ╵

[monsieurtanuki]

ERR : Error on line 3, column 10 of pubspec.yaml: Invalid version number: Could not parse "ots/android+719".
| ╷
| 3 │ version: ots/android+719
| │ ^^^^^^^^^^^^^^^
| ╵

I guess there's a problem in the generation of the version number. cc @M123-dev
Current pubspec.yaml is:

name: smooth_app
description: The next generation of the Open Food Facts mobile apps.
version: 0.0.0+600

[teolemon]

it's also that the current branch does not follow established pattern, but don't loose too much time on this PR, which isn't prioritary