Trying to build main results in "refusing to install version broken"

[JJ]

After trying to fix #85 by using main, that is, rakubrew build moar main

314.3 Rakudo has been built and installed.
314.3 Version moar-main is broken. Refusing to switch to it.

Different combinations of blead did not work either.

[patrickbkr]

I can't reproduce this. rakubrew build moar main && rakubrew switch moar-main works fine here.
Did you try to run this locally?

Is this Dockerfile where the error is coming from? I think this is pushing rakubrew a bit too far. Are you ok with me creating a PR to do this without rakubrew? (I think we had a discussion about this back in 2021.)

[JJ]

Right, that's the Dockerfile. I can do it without rakubrew alright, but the fact that it happens more or less reproducibly means that there's some issue here that is not tested properly and that can arise over and over again...

[patrickbkr]

That's a good point. A possible solution to prevent this stumbling block in the future could be to check for --prefix in --configure-opts= and abort early with a helpful error message. What do you think?

[JJ]

I think that it would be nice to fix behaviors via tests; the is_broken (don't remember exactly the precise name of the function would have to look it up) has several possible factors and outcomes and would be nice to test it.
The issue here is that it's flagging as broken something that is possibly not, or at any rate, not clarifying why it thinks it's broken (or, for that matter, what broken means in this context)

[patrickbkr]

Technically the logic tries to check if the build resulted in an installation rakubrew can use (i.e. the rakudo executables are in the place where rakubrew needs them to be).
When using --prefix the installation ends up somewhere else and not in rakubrews version store. Thus the installation is not usable for rakubrew.

The issue here is that it's flagging as broken something that is possibly not, or at any rate, not clarifying why it thinks it's broken (or, for that matter, what broken means in this context)

Agreed.

I'll add both, a check to prevent --prefix and add a info message telling why rakubrew thinks a version is broken.

[patrickbkr]

I've added the --prefix check and the message on broken builds in v43.
A rakubrew self-upgrade should suffice to update to that version. A respective change to the rakubrew.org website is on it's way.