Re: [PATCH] CI: Add a CPAN cache on Windows

On Fri, Jun 5, 2026 at 1:12 PM Andres Freund <andres(at)anarazel(dot)de> wrote:
> I'm not particularly concerned about that, tbh. If you suddenly switch which
> perl you use, you'll might get some weird errors.

I'm finding that's easy to do by accident, though.

The interactions between
- Git-for-Windows MSYS,
- our full version(s) of MSYS on either C: or D:,
- the environment variables we set (esp. MSYSTEM), and
- the GITHUB_PATH
are fairly unintuitive to me. The windows-vs job pushes Strawberry
Perl into the PATH -- but I think that only works because there's no
MSYSTEM setting? I haven't found a way to get the windows-mingw job to
do the same thing, because it forces its own "native" Perl to take
precedence.

So if we want the two bash shells to behave similarly, I think some
more fundamental things need to be changed first, probably by someone
who understands MSYS2 better than I do. Maybe that's just a really
small tweak, but I can't see it.

--Jacob