cpm Issues installing DBD::Pg

To reproduce:

docker run --platform linux/amd64 --rm -it perldocker/perl-tester:5.36

In Docker container:

curl -O https://cpan.metacpan.org/authors/id/T/TU/TURNSTEP/DBD-Pg-3.16.1.tar.gz
cpm install DBD-Pg-3.16.1.tar.gz

The result should be:

cpm install DBD-Pg-3.16.1.tar.gz
DONE install DBI-1.643
--- 1/2 ---Can't call method "effective_prereqs" on an undefined value at /usr/local/lib/perl5/site_perl/5.36.0/App/cpm/Worker/Installer.pm line 356.
FAIL install DBD-Pg-3.16.1
1 distribution installed.

Mar 14 '23 00:03 oalders

DBD-Pg suppresses the generation of MYMETA.json https://metacpan.org/release/TURNSTEP/DBD-Pg-3.16.1/source/Makefile.PL#L235

cpm does not support such modules.

Mar 14 '23 13:03 skaji

Thank you so much @skaji for the quick and excellent help. ❤️ Do you think it would be possible for cpm to emit a more descriptive error message in this sort of case?

Mar 14 '23 13:03 oalders

Let me think about it. This is also related to https://github.com/skaji/cpm/issues/230.

Mar 14 '23 14:03 skaji