NAME

    CPAN::Mirror::Tiny - create partial CPAN mirror (a.k.a. DarkPAN)

SYNOPSIS

      use CPAN::Mirror::Tiny;
    
      my $cpan = CPAN::Mirror::Tiny->new(base => "./repository");
    
      $cpan->inject("https://cpan.metacpan.org/authors/id/S/SK/SKAJI/App-cpm-0.112.tar.gz");
      $cpan->inject("https://github.com/skaji/Carl.git");
      $cpan->write_index(compress => 1);
    
      # $ find repository -type f
      # repository/authors/id/V/VE/VENDOR/App-cpm-0.112.tar.gz
      # repository/authors/id/V/VE/VENDOR/Carl-ff194fe.tar.gz
      # repository/modules/02packages.details.txt.gz

DESCRIPTION

    CPAN::Mirror::Tiny helps you create partial CPAN mirror (also known as
    DarkPAN).

WHY NEW?

    Yes, we already have great CPAN modules which create CPAN mirror.

    CPAN::Mini, OrePAN2, WorePAN ...

    I want to use such modules in CPAN clients. Actually I used OrePAN2 in
    Carl <https://github.com/skaji/Carl>, which can install modules in
    github.com or any servers.

    Then minimal dependency and no dependency on XS modules is critical.
    Unfortunately existing CPAN mirror modules depend on XS modules.

    This is why I made CPAN::Mirror::Tiny.

METHODS

 new

      my $cpan = CPAN::Mirror::Tiny->new(%option)

    Constructor.  %option  may be:

      * base

      Base directory for cpan mirror. This is required.

      * tempdir

      Temp directory. Default File::Temp::tempdir(CLEANUP => 1).

 inject

      $cpan->inject($source, \%option)

    Inject  $source  to our cpan mirror directory.  $source  is one of

      * local tar.gz path

        $cpan->inject('/path/to/Module.tar.gz', { author => "SKAJI" });

      * http url of tar.gz

        $cpan->inject('http://example.com/Module.tar.gz', { author => "DUMMY" });

      * git url (with optional ref)

        $cpan->inject('git://github.com/skaji/Carl.git', { author => "SKAJI", ref => '0.114' });

    As seeing from the above examples, you can specify author in \%option.
    If you omit author, default VENDOR is used.

    CAUTION: Currently, the distribution name for git repository is
    somthing like S/SK/SKAJI/Carl-0.01-9188c0e.tar.gz, where 0.01 is the
    version and 9188c0e is git rev-parse --short HEAD. However this naming
    convention is likely to change. Do not depend on this!

 index

      my $index_string = $cpan->index

    Get the index (a.k.a. 02packages.details.txt) of our cpan mirror.

 write_index

      $cpan->write_index( compress => bool )

    Write the index to	$base/modules/02packages.details.txt  or 
    base/modules/02packages.details.txt.gz .

TIPS

 How can I install modules in my DarkPAN with cpanm?

    cpanm is an awesome CPAN clients. If you want to install modules in
    your DarkPAN with cpanm, there are 2 ways.

    First way:

      cpanm --cascade-search \
        --mirror-index /path/to/darkpan/modules/02packages.details.txt \
        --mirror /path/to/darkpan \
        --mirror http://www.cpan.org \
        Your::Module

    Second way:

      cpanm --mirror-only \
        --mirror /path/to/darkpan \
        --mirror http://www.cpan.org \
        Your::Module

    I hope that cpanm delegates the process of not only resolving modules
    but also fetching modules to CPAN::Common::Index-like objects entirely.
    Then we can hack cpanm easily.

    I believe that cpanm 2.0 also known as Menlo comes with such features!

COPYRIGHT AND LICENSE

    Copyright 2016 Shoichi Kaji <skaji@cpan.org>

    This library is free software; you can redistribute it and/or modify it
    under the same terms as Perl itself.