cpan dependency heaven
DESCRIPTION
Installing CPAN modules and managing their dependencies has got much easier over recent years thanks to tools like cpanm. But what about the DarkPAN, i.e. all the code that *isn't* on CPAN? In this talk we will look at how to build our own private CPAN, upload our own DarkPAN modules, and easily mix private and public dependencies. From this we will build cross-platform installation packages which can be used on any system with Perl installed (no external dependencies or even Internet access required). Presented at the YAPC::Europe 2012 conference in Frankfurt, Germany.TRANSCRIPT
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CPAN
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perl myscript.plCan't locate SomeModule.pm in @INC (@INC contains: /Users/jj/perl/perl-5.14.1/lib/site_perl/5.14.1/darwin-2level /Users/jj/perl/perl-5.14.1/lib/site_perl/5.14.1 /Users/jj/perl/perl-5.14.1/lib/5.14.1/darwin-2level /Users/jj/perl/perl-5.14.1/lib/5.14.1 .) ...
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perl myscript.plCan't locate OtherModule.pm in @INC (@INC contains: /Users/jj/perl/perl-5.14.1/lib/site_perl/5.14.1/darwin-2level /Users/jj/perl/perl-5.14.1/lib/site_perl/5.14.1 /Users/jj/perl/perl-5.14.1/lib/5.14.1/darwin-2level /Users/jj/perl/perl-5.14.1/lib/5.14.1 .) ...
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CPAN Dependency
Hell
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solved problem?
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cpanm"local::lib
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bootstraps
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curl -L"http://cpanmin.us |"perl - --self-upgrade
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DarkPAN
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DarkPAN
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DarkPAN
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DarkPAN
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DarkPAN
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all your code not on CPAN
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rpm?"deb?
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token Mac user
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token Windows user
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not cross-platform
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use CPAN packaging
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build your own CPAN
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CPAN::Mini
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CPAN::Mini::Inject
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can be tricky "to use
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build your own PAUSE
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CPAN::Mini::"Inject::REST
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REST API for CPAN::Mini::Inject
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inject modules remotely
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supports authentication
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enforces version
changes
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client?
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CPAN::Mini::"Inject::REST::"
Client
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command-line app
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workflow
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build CPAN package
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perl Makefile.PL"make"
make dist
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upload to your CPAN
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mcpani-client"add "
--host cpan.local"MyModule-0.1.tar.gz
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install
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cpanm --mirror "http://cpan.local "
--mirror-only My::Module
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easily mix local and CPAN
dependencies
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distribution
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Elaine’s Law
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“Just make it fucking easy to
install!”
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App::cpackage
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creates install packages for Perl modules
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self-contained (dependencies
included)
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very simple
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someone else did the hard
work!
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thin wrapper around
cpanminus
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analyses dependencies
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downloads dependencies
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writes install.pl script
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cpanm App::cpackage
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cpackage Module::Name
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cpackage "--mirror "
http://cpan.local "--mirror-only My::Module
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./packages/…"./bin/cpanm"
./install.pl
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perl install.pl
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perl install.pl"--sudo
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no internet required
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no CPAN client required
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self-contained installer
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CPAN Dependency Heaven
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done.
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done. :-)
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