installer: align Install with Ensure & test it #34
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Closes #25
The two main methods (
Ensure
andInstall
) have inconsistent behaviour in the sense thatInstall
doesn't perform validation or track installed files such that they can be removed.This PR aligns both methods.
While reading this code I also realized that we make (somewhat unconscious) assumption that the state (removable files) only survives until the next
Ensure
orInstall
call, so the user can't really call both or one of those repeatedly, unless they also always callRemove
before. I created a separate issue to track that though: #35