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Re: How to do co-maintenance on CPAN distro which uses Dist::Zilla(Travis and other questions)

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From:
Dan Book
Date:
January 23, 2020 20:19
Subject:
Re: How to do co-maintenance on CPAN distro which uses Dist::Zilla(Travis and other questions)
Message ID:
CABMkAVWErGDTNbr765ps5_UU4m25285oJjqr=qAT9Xtcn30Oig@mail.gmail.com
On Thu, Jan 23, 2020 at 3:04 PM James E Keenan <jkeenan@pobox.com> wrote:

> I have been granted COMAINT status by Paul Fenwick on CPAN distribution
> IPC-System-Simple.  This distribution is built and maintained using
> Dist::Zilla and quite a few Dist::Zilla plugins.  I do not, in general,
> use Dist::Zilla in any of my own CPAN distributions.  It's much too
> "auto-magicky" for my needs and taste, so I only use it when, say, I
> have to diagnose a test failure in a "CPAN-River-3000" module.
>
> But in this case I have to use dzil, so I'd like to get some answers to
> specific questions en route to formulating what (for me, at least) will
> be best practices for maintaining this distribution going forward.
>
> 1.  How do I add a Travis-CI configuration to a distribution maintained
> with Dist::Zilla?
>
> The IPC-System-Simple repository did not have a .travis.yml
> configuration file when I cloned the repo, so I added one (attached)
> copied from one of my other CPAN distros where it DWIMs.  I made no
> changes in dist.ini.  The only other change I made was to modify a test
> to deal with the github issue that led me to request comaintenance on
> this distro in the first place.  I activated the configuration under my
> Travis account and pushed to github.  However, the Travis build failed,
> here:
>
> #####
> https://travis-ci.org/jkeenan/ipc-system-simple/jobs/641031415
> #####
>
> This build failed with this log output:
>
> #####
> [DZ] attempt to add META.json multiple times; added by: text from
> coderef added by MetaJSON (Dist::Zilla::Plugin::MetaJSON line 91);
> filename set by GatherDir (Dist::Zilla::Plugin::GatherDir line 225);
> encoded_content added by @Basic/GatherDir
> (Dist::Zilla::Plugin::GatherDir line 226)
>
> [DZ] attempt to add t/author-pod-coverage.t multiple times; added by:
> content added by PodCoverageTests (Dist::Zilla::Plugin::InlineFiles line
> 33); filename set by ExtraTests (Dist::Zilla::Plugin::ExtraTests line
> 54); content set by ExtraTests (Dist::Zilla::Plugin::ExtraTests line
> 67); filename set by GatherDir (Dist::Zilla::Plugin::GatherDir line
> 225); encoded_content added by @Basic/GatherDir
> (Dist::Zilla::Plugin::GatherDir line 226)
>
> [DZ] attempt to add t/author-pod-syntax.t multiple times; added by:
> content added by PodSyntaxTests (Dist::Zilla::Plugin::InlineFiles line
> 33); filename set by ExtraTests (Dist::Zilla::Plugin::ExtraTests line
> 54); content set by ExtraTests (Dist::Zilla::Plugin::ExtraTests line
> 67); filename set by GatherDir (Dist::Zilla::Plugin::GatherDir line
> 225); encoded_content added by @Basic/GatherDir
> (Dist::Zilla::Plugin::GatherDir line 226)
>
> [DZ] attempt to add t/author-critic.t multiple times; added by: content
> added by Test::Perl::Critic (Dist::Zilla::Plugin::Test::Perl::Critic
> line 42); filename set by ExtraTests (Dist::Zilla::Plugin::ExtraTests
> line 54); content set by ExtraTests (Dist::Zilla::Plugin::ExtraTests
> line 67); filename set by GatherDir (Dist::Zilla::Plugin::GatherDir line
> 225); encoded_content added by @Basic/GatherDir
> (Dist::Zilla::Plugin::GatherDir line 226)
>
> [DZ] attempt to add META.yml multiple times; added by: filename set by
> GatherDir (Dist::Zilla::Plugin::GatherDir line 225); encoded_content
> added by @Basic/GatherDir (Dist::Zilla::Plugin::GatherDir line 226);
> text from coderef added by @Basic/MetaYAML
> (Dist::Zilla::Plugin::MetaYAML line 70)
>
> [DZ] attempt to add LICENSE multiple times; added by: filename set by
> GatherDir (Dist::Zilla::Plugin::GatherDir line 225); encoded_content
> added by @Basic/GatherDir (Dist::Zilla::Plugin::GatherDir line 226);
> content added by @Basic/License (Dist::Zilla::Plugin::License line 37)
>
> [DZ] attempt to add README multiple times; added by: filename set by
> GatherDir (Dist::Zilla::Plugin::GatherDir line 225); encoded_content
> added by @Basic/GatherDir (Dist::Zilla::Plugin::GatherDir line 226);
> content added by @Basic/Readme (Dist::Zilla::Plugin::Readme line 44);
> content set by Readme (Dist::Zilla::Plugin::Readme line 61)
>
> [DZ] attempt to add Makefile.PL multiple times; added by: filename set
> by GatherDir (Dist::Zilla::Plugin::GatherDir line 225); encoded_content
> added by @Basic/GatherDir (Dist::Zilla::Plugin::GatherDir line 226);
> content set by MakeMaker (Dist::Zilla::Plugin::MakeMaker line 329);
> content added by @Basic/MakeMaker (Dist::Zilla::Plugin::MakeMaker line 144)
>
> [DZ] attempt to add MANIFEST multiple times; added by: filename set by
> GatherDir (Dist::Zilla::Plugin::GatherDir line 225); encoded_content
> added by @Basic/GatherDir (Dist::Zilla::Plugin::GatherDir line 226);
> bytes from coderef added by @Basic/Manifest
> (Dist::Zilla::Plugin::Manifest line 55)
>
> aborting; duplicate files would be produced at
>
> /home/travis/perl5/perlbrew/perls/5.30.0/lib/site_perl/5.30.0/Dist/Zilla/App/Command/
> build.pm
> line 97.
>
> The command "build-dist" failed and exited with 255 during .
> #####
>
> So, what do I need to do to get Dist::Zilla and Travis to play nice with
> each other?  (Attached: the Travis config I wrote and the existing
> dist.ini file.)
>

It appears the dzil build is being run twice, because of the use of the
--auto switch to travis-perl-helpers but also custom build commands.
travis-perl-helpers gives two example configs, one using --auto and one
using the more detailed commands as your config uses, the combination is
causing a duplicate build.

https://github.com/travis-perl/helpers

-Dan

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