config.pm

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package CPANPLUS::Config;

use strict;
use warnings;

use base 'Object::Accessor';

use base 'CPANPLUS::Internals::Utils';

use Config;
use File::Spec;
use Module::Load;
use CPANPLUS;
use CPANPLUS::Error;
use CPANPLUS::Internals::Constants;

use File::Basename              qw[dirname];
use IPC::Cmd                    qw[can_run];
use Locale::Maketext::Simple    Class => 'CPANPLUS', Style => 'gettext';
use Module::Load::Conditional   qw[check_install];


=pod

=head1 NAME

CPANPLUS::Config

=head1 DESCRIPTION

This module contains defaults and heuristics for configuration 
information for CPANPLUS. To change any of these values, please
see the documentation in C<CPANPLUS::Configure>.

Below you'll find a list of configuration types and keys, and
their meaning.

=head1 CONFIGURATION

=cut

### BAH! you can't have POD interleaved with a hash
### declaration.. so declare every entry seperatedly :(
my $Conf = {
    '_fetch' => {
        'blacklist' => [ 'ftp' ],
    },
    
    ### _source, _build and _mirror are supposed to be static
    ### no changes should be needed unless pause/cpan changes
    '_source' => {
        'hosts'             => 'MIRRORED.BY',
        'auth'              => '01mailrc.txt.gz',
        'stored'            => 'sourcefiles',
        'dslip'             => '03modlist.data.gz',
        'update'            => '86400',
        'mod'               => '02packages.details.txt.gz',
        'custom_index'      => 'packages.txt',
    },
    '_build' => {
        'plugins'           => 'plugins',
        'moddir'            => 'build',
        'startdir'          => '',
        'distdir'           => 'dist',
        'autobundle'        => 'autobundle',
        'autobundle_prefix' => 'Snapshot',
        'autdir'            => 'authors',
        'install_log_dir'   => 'install-logs',
        'custom_sources'    => 'custom-sources',
        'sanity_check'      => 1,
    },
    '_mirror' => {
        'base'              => 'authors/id/',
        'auth'              => 'authors/01mailrc.txt.gz',
        'dslip'             => 'modules/03modlist.data.gz',
        'mod'               => 'modules/02packages.details.txt.gz'
    },
};

=head2 Section 'conf'

=over 4

=item hosts

An array ref containing hosts entries to be queried for packages.

An example entry would like this:

    {   'scheme' => 'ftp',
        'path' => '/pub/CPAN/',
        'host' => 'ftp.cpan.org'
    },

=cut

    ### default host list
    $Conf->{'conf'}->{'hosts'} = [
            {
                'scheme' => 'ftp',
                'path' => '/pub/CPAN/',
                'host' => 'ftp.cpan.org'
            },
            {
                'scheme' => 'http',
                'path' => '/',
                'host' => 'www.cpan.org'
            },
            {
                'scheme' => 'ftp',
                'path' => '/pub/CPAN/',
                'host' => 'ftp.nl.uu.net'
            },
            {
                'scheme' => 'ftp',
                'path' => '/pub/CPAN/',
                'host' => 'cpan.valueclick.com'
            },
            {
                'scheme' => 'ftp',
                'path' => '/pub/languages/perl/CPAN/',
                'host' => 'ftp.funet.fi'
            }
        ];
        
=item allow_build_interactivity

Boolean flag to indicate whether 'perl Makefile.PL' and similar
are run interactively or not. Defaults to 'true'.

=cut

        $Conf->{'conf'}->{'allow_build_interactivity'} = 1;

=item base

The directory CPANPLUS keeps all it's build and state information in.
Defaults to ~/.cpanplus.

=cut

       $Conf->{'conf'}->{'base'} = File::Spec->catdir(
                                        __PACKAGE__->_home_dir, DOT_CPANPLUS );

=item buildflags

Any flags to be passed to 'perl Build.PL'. See C<perldoc Module::Build>
for details. Defaults to an empty string.

=cut

        $Conf->{'conf'}->{'buildflags'} = '';

=item cpantest

Boolean flag to indicate whether or not to mail test results of module
installations to C<http://testers.cpan.org>. Defaults to 'false'.

=cut

        $Conf->{'conf'}->{'cpantest'} = 0;

=item cpantest_mx

String holding an explicit mailserver to use when sending out emails
for C<http://testers.cpan.org>. An empty string will use your system
settings. Defaults to an empty string.

=cut

        $Conf->{'conf'}->{'cpantest_mx'} = '';

=item debug

Boolean flag to enable or disable extensive debuggging information.
Defaults to 'false'.

=cut

        $Conf->{'conf'}->{'debug'} = 0;

=item dist_type

Default distribution type to use when building packages. See C<cpan2dist>
or C<CPANPLUS::Dist> for details. An empty string will not use any 
package building software. Defaults to an empty string.

=cut

        $Conf->{'conf'}->{'dist_type'} = '';

=item email

Email address to use for anonymous ftp access and as C<from> address
when sending emails. Defaults to an C<example.com> address.

=cut

        $Conf->{'conf'}->{'email'} = DEFAULT_EMAIL;

=item extractdir

String containing the directory where fetched archives should be 
extracted. An empty string will use a directory under your C<base>
directory. Defaults to an empty string.

=cut

        $Conf->{'conf'}->{'extractdir'} = '';

=item fetchdir

String containing the directory where fetched archives should be 
stored. An empty string will use a directory under your C<base>
directory. Defaults to an empty string.

=cut

        $Conf->{'conf'}->{'fetchdir'} = '';

=item flush

Boolean indicating whether build failures, cache dirs etc should
be flushed after every operation or not. Defaults to 'true'.

=cut

        $Conf->{'conf'}->{'flush'} = 1;

=item force

Boolean indicating whether files should be forcefully overwritten
if they exist, modules should be installed when they fail tests,
etc. Defaults to 'false'.

=cut

        $Conf->{'conf'}->{'force'} = 0;

=item lib

An array ref holding directories to be added to C<@INC> when CPANPLUS
starts up. Defaults to an empty array reference.

=cut

        $Conf->{'conf'}->{'lib'} = [];

=item makeflags

A string holding flags that will be passed to the C<make> program
when invoked. Defaults to an empty string.

=cut

        $Conf->{'conf'}->{'makeflags'} = '';

=item makemakerflags

A string holding flags that will be passed to C<perl Makefile.PL>
when invoked. Defaults to an empty string.

=cut

        $Conf->{'conf'}->{'makemakerflags'} = '';

=item md5

A boolean indicating whether or not md5 checks should be done when
an archive is fetched. Defaults to 'true' if you have C<Digest::MD5>
installed, 'false' otherwise.

=cut

        $Conf->{'conf'}->{'md5'} = ( 
                            check_install( module => 'Digest::MD5' ) ? 1 : 0 );

=item no_update

A boolean indicating whether or not C<CPANPLUS>' source files should be
updated or not. Defaults to 'false'.

=cut

        $Conf->{'conf'}->{'no_update'} = 0;

=item passive

A boolean indicating whether or not to use passive ftp connections.
Defaults to 'true'.

=cut

        $Conf->{'conf'}->{'passive'} = 1;

=item prefer_bin

A boolean indicating whether or not to prefer command line programs 
over perl modules. Defaults to 'false' unless you do not have 
C<Compress::Zlib> installed (as that would mean we could not extract
C<.tar.gz> files)

=cut
        ### if we dont have c::zlib, we'll need to use /bin/tar or we
        ### can not extract any files. Good time to change the default
        $Conf->{'conf'}->{'prefer_bin'} = 
                                (eval {require Compress::Zlib; 1} ? 0 : 1 );

=item prefer_makefile

A boolean indicating whether or not prefer a C<Makefile.PL> over a 
C<Build.PL> file if both are present. Defaults to 'true'.

=cut

        $Conf->{'conf'}->{'prefer_makefile'} = 1;

=item prereqs

A digit indicating what to do when a package you are installing has a
prerequisite. Options are:

    0   Do not install
    1   Install
    2   Ask
    3   Ignore  (dangerous, install will probably fail!)

The default is to ask.

=cut

        $Conf->{'conf'}->{'prereqs'} = PREREQ_ASK;

=item shell

A string holding the shell class you wish to start up when starting
C<CPANPLUS> in interactive mode.

Defaults to C<CPANPLUS::Shell::Default>, the default CPANPLUS shell.

=cut

        $Conf->{'conf'}->{'shell'} = 'CPANPLUS::Shell::Default';

=item show_startup_tip

A boolean indicating whether or not to show start up tips in the 
interactive shell. Defaults to 'true'.

=cut

        $Conf->{'conf'}->{'show_startup_tip'} = 1;

=item signature

A boolean indicating whether or not check signatures if packages are
signed. Defaults to 'true' if you have C<gpg> or C<Crypt::OpenPGP> 
installed, 'false' otherwise.

=cut

        $Conf->{'conf'}->{'signature'} = do {
            check_install( module => 'Module::Signature', version => '0.06' )
            and ( can_run('gpg') || 
                  check_install(module => 'Crypt::OpenPGP')
            );
        } ? 1 : 0;