Print out which project file we're using by default (fix #8519)

[ulysses4ever]

Attempting to resurrect #8617

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[ulysses4ever]

Converting to a draft because of spurious changes like https://github.com/haskell/cabal/pull/10507/files#diff-d6f32a6a398cc85df21df74b2a260427387c0ea52d96987e49551137d466d92fL7 Will see what CI has to say.

[ulysses4ever]

I bet it's because the --intree-cabal-lib business...

[geekosaur]

I gave up on making that work when I was bisecting an issue and wanted to streamline validate a bit.

[ulysses4ever]

Okay, fixed by running with the in-tree Cabal:

❯ cabal run cabal-testsuite:cabal-tests -- --with-cabal=(cabal list-bin cabal) --accept --intree-cabal-lib $PWD --test-tmp $PWD/testdb

[ulysses4ever]

I'll put the label requesting reviews after CI is happy.

[ulysses4ever]

CI is green now. I'd like this to be considered for 3.14.1 @Kleidukos.

[ulysses4ever]

@Kleidukos @Mikolaj @ffaf1 I'd appreciate a review for this one. I'd even hope we can get it into 3.14.1. Over the years, many people have tripped over the default behavior of searching project files, and the patch could probably save some of them from it.

(The CI was green but I just pushed a changelog file, so it's rebuilding again...)

[Mikolaj]

A good decision. And well tested. :)

[ulysses4ever]

Thanks! Since it's been up for 5 days, I consider the chill out period passed and apply the label manually in the interest of getting this merged in time for 3.14.1 (the final decision about addition to 3.14.1 is up to Hécate of course).

[ulysses4ever]

@mergify backport 3.14

[mergify]

backport 3.14

✅ Backports have been created

• #10535 Backport #10507: Print out which project file we're using by default (fix #8519) has been created for branch 3.14 but encountered conflicts