[meta] Automate screenshots

[pocmo]

As soon as we auto-import translations (#929) it would make sense automating the screenshot process too.

The iOS team wants this too - so let's join forces!

Tasks

• Proof of concept
• Modify docker image to support taking screenshots (emulator, fastlane, image tools)
• Test execution on taskcluster
• Run complete screenshot test suite
• Resize and minify screenshots
• Stabelize UI test
• Split task into multiple tasks (decision task)
• Upload screenshots

[pocmo]

@npark-mozilla FYI! You probably know best what we would need for that. :)

[nojunpark]

Hmm, on Android, it is matter of running series of following commands:
export LC_ALL="en_US.UTF-8"
./gradlew assembleDebug assembleAndroidTest
fastlane screengrab run (need to install fastlane and screengrab beforehand)

BUT, this entails that we run it on an actual device, and BB real devices seem pretty finicky... we'll find out
maybe we can put this on buddybuild_postbuild.sh or something like that? (depends on how we automate l10n import)

[pocmo]

The iOS team was thinking about planting a machine in some office. Maybe we could just attach an Android phone to it? But from past experience: This often has issues for random reasons. :)

[pocmo]

Notes from our meeting:

• https://public.etherpad-mozilla.org/p/focus-screenshots-automation
• https://pastebin.mozilla.org/9032481

[ekager]

Can we close this meta?

[nojunpark]

This was complicated by having older sim running on taskcluster and having intermittent failures - it's not done, but it seems unclear that we'll be working on this. @pocmo , thoughts?

[pocmo]

I talked to the L10N team some time ago and it is likely that they are going to own the screenshot automation for our apps.

I definitely won't be able to work on that.

[nojunpark]

Okay let's close this issue then.