[no squash] Android stuff

[sfan5]

No description provided.

[SmallJoker]

What should be tested here? Whether the build process still works? Whether the app start up?

[sfan5]

Both, I suppose. The CI already tells you the former.

[rubenwardy]

I'm confident with all the commits except for Skip Android deps download if they already exist.

I don't know gradle tasks that well, so I don't know if programmatically changing the number of registered tasks would have side effects. How confident are you with this? It's possible it would mess with the task dependency graph. Googling finds the following promising looking things:

• Task.onlyIf - only run a task if a condition is met
• outputs.file/dir - maybe this allows you to tell gradle about the files, so it doesn't rerun the task if they exist?

[sfan5]

I have tested it and it works so I'd rather not rewrite it around onlyIf. AFAIK gradle also revaluates all build files & the dependency graph every time you run it so that shouldn't be an issue in practice.

[rubenwardy]

Tried to break Gradle and couldn't so looks good to me