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locate Perl Modules in Debian repositories

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README
NAME
    Debian::Apt::PM - locate Perl Modules in Debian repositories

NOTE
    Needs following extra Debian packages `libdpkg-perl' and
    `libapt-pkg-perl'.

SYNOPSIS
    command line:

            apt-pm update
            apt-pm find Moose
            dpkg-scanpmpackages /path/to/debian/repository
        
            # print out all dependencies of an unpacked distribution that are packaged for Debian
            perl -MDebian::Apt::PM -MModule::Depends -le \
                    '$apm=Debian::Apt::PM->new();$md=Module::Depends->new->dist_dir(".")->find_modules; %r=(%{$md->requires},%{$md->build_requires}); while (($m, $v) = each %r) { $f=$apm->find($m, $v); print $f->{"min"}->{"package"} if $f->{"min"}  }' \
                    | sort \
                    | uniq \
                    | xargs echo apt-get install
            # print out all dependencies of an unpacked distribution that are not packaged for Debian
            perl -MDebian::Apt::PM -MModule::Depends -le \
                    '$apm=Debian::Apt::PM->new();$md=Module::Depends->new->dist_dir(".")->find_modules; %r=(%{$md->requires},%{$md->build_requires}); while (($m, $v) = each %r) { $f=$apm->find($m, $v); print $m, " ", $v if not $f->{"min"}  }'

    Module:

            my $aptpm = Debian::Apt::PM->new(sources => [ 'PerlPackages.bz2' ])
            $aptpm->update;
            my %moose_locations = $aptpm->find('Moose');

USAGE
  COMMAND-LINE USAGE
    Add sources for Debian releases and components. Here is the complete
    list that can be reduced just to the wanted ones:

            cat >> /etc/apt/sources.list << __END__
            # for apt-pm
            deb http://alioth.debian.org/~jozef-guest/pmindex/     lenny   main contrib non-free
            deb http://alioth.debian.org/~jozef-guest/pmindex/     squeeze main contrib non-free
            deb http://alioth.debian.org/~jozef-guest/pmindex/     wheezy  main contrib non-free
            deb http://alioth.debian.org/~jozef-guest/pmindex/     sid     main contrib non-free

            __END__

    Fetch the indexes:

            apt-pm update

    Look for the CPAN modules:

            apt-pm find Moose
            # libmoose-perl_0.17-1_all: Moose 0.17
            # libmoose-perl_0.94-1_i386: Moose 0.94
            # libmoose-perl_0.97-1_i386: Moose 0.97
            # libmoose-perl_0.54-1_all: Moose 0.54

    Look for the non-CPAN modules:

            apt-pm find Purple        
            # libpurple0_2.4.3-4lenny5_i386: Purple 0.01
        
            apt-pm find Dpkg::Version
            # dpkg-dev_1.14.28_all: Dpkg::Version 0

METHODS
  new()
    Object constructor.

    PROPERTIES
    sources
        `isa => 'ArrayRef'' of files that will be read to construct the
        lookup. By default it is filled with files from
        /var/cache/apt/apt-pm/.

    cachedir
        Is the folder where indexes cache files will be stored. Default is
        /var/cache/apt/apt-pm/deb/.

    repo_type
        `deb|deb-src'

    packages_dependencies
        Path to `02packages.dependencies.txt(.gz)?' file.

  find($module_name, [$min_version])
    Returns hash with Perl versions as key and hash value having Debian
    version and package name. Example:

            {
                    '0.94' => {
                            'version' => '0.94-1',
                            'package' => 'libmoose-perl'
                            'arch'    => 'i386'
                    },
                    '0.97' => {
                            'version' => '0.97-1',
                            'package' => 'libmoose-perl'
                            'arch'    => 'i386'
                    },
                    '0.54' => {
                            'version' => '0.54-1',
                            'package' => 'libmoose-perl'
                            'arch'    => 'i386'
                    },
            };

    If `$min_version' is set, returns `min' and `max' keys. `max' has always
    the highest version:

            'max' => {
                    'version' => '0.97-1',
                    'package' => 'libmoose-perl'
                    'arch'    => 'i386'
            },

    `min' is changing depending on `$min_version'. Examples:

            $min_version = '0.01';
            'min' => {
                    'version' => '0.54-1',
                    'package' => 'libmoose-perl'
                    'arch'    => 'i386'
            },
            $min_version = '0.93';
            'min' => {
                    'version' => '0.94-1',
                    'package' => 'libmoose-perl'
                    'arch'    => 'i386'
            },
            $min_version = '1.00';
            'min' => undef,

  update
    Scans the /etc/apt/sources.list and /etc/apt/sources.list.d/*.list
    repositories for PerlPackages.bz2 and prepares them to be used for find.
    All PerlPackages.bz2 are stored to /var/cache/apt/apt-pm/.

    It also fetches
    http://pkg-perl.alioth.debian.org/cpan2deb/CPAN/02packages.dependencies.
    txt.gz to be used by `apt-cpan'.

  clean
    Remove all files from cache folder.

  resolve_install_depends($force_all, @modules)
    Returns two array references one with Debian packages, the other with
    CPAN packages that needs to be installed on current system for the given
    list of `@modules'.

    Option `$force_all' (true/false) choose to include all dependencies not
    just the ones that needs to be installed.

  module_depends($module)
    Return all Perl modules and Debian packages `$module' has as dependency.

SEE ALSO
    http://pkg-perl.alioth.debian.org/cpan2deb/

AUTHOR
    jozef@kutej.net, `<jkutej at cpan.org>'

BUGS
    Please report any bugs or feature requests to `bug-debian-apt-pm at
    rt.cpan.org', or through the web interface at
    http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Debian-Apt-PM. I will be
    notified, and then you'll automatically be notified of progress on your
    bug as I make changes.

SUPPORT
    You can find documentation for this module with the perldoc command.

        perldoc Debian::Apt::PM

    You can also look for information at:

    * RT: CPAN's request tracker
        http://rt.cpan.org/NoAuth/Bugs.html?Dist=Debian-Apt-PM

    * AnnoCPAN: Annotated CPAN documentation
        http://annocpan.org/dist/Debian-Apt-PM

    * CPAN Ratings
        http://cpanratings.perl.org/d/Debian-Apt-PM

    * Search CPAN
        http://search.cpan.org/dist/Debian-Apt-PM/

ACKNOWLEDGEMENTS
LICENSE AND COPYRIGHT
    Copyright 2010 jkutej@cpan.org.

    This program is free software; you can redistribute it and/or modify it
    under the terms of either: the GNU General Public License as published
    by the Free Software Foundation; or the Artistic License.

    See http://dev.perl.org/licenses/ for more information.

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