package CPANPLUS::Config;
use deprecate;

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];
use version;

use vars qw[$VERSION];
$VERSION = "0.9135";

=pod

=head1 NAME

CPANPLUS::Config - configuration defaults and heuristics for CPANPLUS

=head1 SYNOPSIS

### conf object via CPANPLUS::Backend;
$cb = CPANPLUS::Backend->new;
$conf = $cb->configure_object;

### or as a standalone object
$conf = CPANPLUS::Configure->new;

### values in 'conf' section
$verbose = $conf->get_conf( 'verbose' );
$conf->set_conf( verbose => 1 );

### values in 'program' section
$editor = $conf->get_program( 'editor' );
$conf->set_program( editor => '/bin/vi' );

=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 separately :(
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' => '/',
'host' => 'cpan.hexten.net'
},
{
'scheme' => 'ftp',
'path' => '/CPAN/',
'host' => 'cpan.cpantesters.org'
},
{
'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 allow_unknown_prereqs

Boolean flag to indicate that unresolvable prereqs are acceptable.
If C<true> then only warnings will be issued (the behaviour before 0.9114)
when a module is unresolvable from any our sources (CPAN and/or
C<custom_sources>). If C<false> then an unresolvable prereq will fail
during the C<prepare> stage of distribution installation.
Defaults to C<true>.

=cut

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

=item base

The directory CPANPLUS keeps all its build and state information in.
Defaults to ~/.cpanplus. If L<File::HomeDir> is available, that will
be used to work out your C<HOME> directory. This may be overriden by
setting the C<PERL5_CPANPLUS_HOME> environment variable, see
L<CPANPLUS::Config::HomeEnv> for more details.

=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 enable_custom_sources

Boolean flag indicating whether custom sources should be enabled or
not. See the C<CUSTOM MODULE SOURCES> in C<CPANPLUS::Backend> for
details on how to use them.

Defaults to C<true>

=cut

### this addresses #32248 which requests a possibility to
### turn off custom sources
$Conf->{'conf'}->{'enable_custom_sources'} = 1;

=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 histfile

A string containing the history filename of the CPANPLUS readline instance.

=cut

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

=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 sha256 checks should be done when
an archive is fetched. Defaults to 'true' if you have C<Digest::SHA>
installed, 'false' otherwise.

=cut

$Conf->{'conf'}->{'md5'} = (
check_install( module => 'Digest::SHA' ) ? 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', unless
the perl version is at least 5.10.1 or appropriate versions of L<Module::Build>
and L<CPANPLUS::Dist::Build> are available.

=cut

$Conf->{'conf'}->{'prefer_makefile'} =
( $] >= 5.010001 or
( check_install( module => 'Module::Build', version => '0.32' ) and
check_install( module => INSTALLER_BUILD, version => '0.60' ) )
? 0 : 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;

=item skiptest

A boolean indicating whether or not to skip tests when installing modules.
Defaults to 'false'.

=cut

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

=item storable

A boolean indicating whether or not to use C<Storable> to write compiled
source file information to disk. This makes for faster startup and look
up times, but takes extra diskspace. Defaults to 'true' if you have
C<Storable> installed and 'false' if you don't.

=cut

$Conf->{'conf'}->{'storable'} =
( check_install( module => 'Storable' ) ? 1 : 0 );

=item timeout

Digit indicating the time before a fetch request times out (in seconds).
Defaults to 300.

=cut

$Conf->{'conf'}->{'timeout'} = 300;

=item verbose

A boolean indicating whether or not C<CPANPLUS> runs in verbose mode.
Defaults to 'true' if you have the environment variable
C<PERL5_CPANPLUS_VERBOSE> set to true, 'false' otherwise.

It is recommended you run with verbose enabled, but it is disabled
for historical reasons.

=cut

$Conf->{'conf'}->{'verbose'} = $ENV{PERL5_CPANPLUS_VERBOSE} || 0;

=item write_install_log

A boolean indicating whether or not to write install logs after installing
a module using the interactive shell. Defaults to 'true'.


=cut

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

=item source_engine

Class to use as the source engine, which is generally a subclass of
C<CPANPLUS::Internals::Source>. Default to C<CPANPLUS::Internals::Source::Memory>.

=cut

$Conf->{'conf'}->{'source_engine'} = DEFAULT_SOURCE_ENGINE;

=item cpantest_reporter_args

A hashref of key => value pairs that are passed to the constructor
of C<Test::Reporter>. If you'd want to enable TLS for example, you'd
set it to:

{ transport => 'Net::SMTP::TLS',
transport_args => [ User => 'Joe', Password => '123' ],
}

=cut

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

=back

=head2 Section 'program'

=cut

### Paths get stripped of whitespace on win32 in the constructor
### sudo gets emptied if there's no need for it in the constructor

=over 4

=item editor

A string holding the path to your editor of choice. Defaults to your
$ENV{EDITOR}, $ENV{VISUAL}, 'vi' or 'pico' programs, in that order.

=cut

$Conf->{'program'}->{'editor'} = do {
$ENV{'EDITOR'} || $ENV{'VISUAL'} ||
can_run('vi') || can_run('pico')
};

=item make

A string holding the path to your C<make> binary. Looks for the C<make>
program used to build perl or failing that, a C<make> in your path.

=cut

$Conf->{'program'}->{'make'} =
can_run($Config{'make'}) || can_run('make');

=item pager

A string holding the path to your pager of choice. Defaults to your
$ENV{PAGER}, 'less' or 'more' programs, in that order.

=cut

$Conf->{'program'}->{'pager'} =
$ENV{'PAGER'} || can_run('less') || can_run('more');

### no one uses this feature anyway, and it's only working for EU::MM
### and not for module::build
#'perl' => '',

=item shell

A string holding the path to your login shell of choice. Defaults to your
$ENV{SHELL} setting, or $ENV{COMSPEC} on Windows.

=cut

$Conf->{'program'}->{'shell'} = $^O eq 'MSWin32'
? $ENV{COMSPEC}
: $ENV{SHELL};

=item sudo

A string holding the path to your C<sudo> binary if your install path
requires super user permissions. Looks for C<sudo> in your path, or
remains empty if you do not require super user permissions to install.

=cut

$Conf->{'program'}->{'sudo'} = do {
### let's assume you dont need sudo,
### unless one of the below criteria tells us otherwise
my $sudo = undef;

### you're a normal user, you might need sudo
if( $> ) {

### check for all install dirs!
### you have write permissions to the installdir,
### you don't need sudo
if( -w $Config{'installsitelib'} && -w $Config{'installsitebin'} ) {

### installsiteman3dir is a 5.8'ism.. don't check
### it on 5.6.x...
if( defined $Config{'installsiteman3dir'} ) {
$sudo = -w $Config{'installsiteman3dir'}
? undef
: can_run('sudo');
} else {
$sudo = undef;
}

### you have PERL_MM_OPT set to some alternate
### install place. You probably have write permissions
### to that
} elsif ( $ENV{'PERL_MM_OPT'} and
$ENV{'PERL_MM_OPT'} =~ /INSTALL|LIB|PREFIX/
) {
$sudo = undef;

### you probably don't have write permissions
} else {
$sudo = can_run('sudo');
}
}

### and return the value
$sudo;
};

=item perlwrapper

B<DEPRECATED>

A string holding the path to the C<cpanp-run-perl> utility bundled
with CPANPLUS, which is used to enable autoflushing in spawned processes.

=cut

### perlwrapper that allows us to turn on autoflushing
$Conf->{'program'}->{'perlwrapper'} = sub {
my $name = 'cpanp-run-perl';

my @bins = do{
require Config;
my $ver = $Config::Config{version};

### if we are running with 'versiononly' enabled,
### all binaries will have the perlversion appended
### ie, cpanp will become cpanp5.9.5
### so prefer the versioned binary in that case
$Config::Config{versiononly}
? ($name.$ver, $name)
: ($name, $name.$ver);
};

### patch from Steve Hay Fri 29 Jun 2007 14:26:02 GMT+02:00
### Msg-Id: <[email protected]>
### look for files with a ".bat" extension as well on Win32
@bins = map { $_, "$_.bat" } @bins if $^O eq 'MSWin32';

my $path;
BIN: for my $bin (@bins) {

### parallel to your cpanp/cpanp-boxed
my $maybe = File::Spec->rel2abs(
File::Spec->catfile( dirname($0), $bin )
);
$path = $maybe and last BIN if -f $maybe;

### parallel to your CPANPLUS.pm:
### $INC{cpanplus}/../bin/cpanp-run-perl
$maybe = File::Spec->rel2abs(
File::Spec->catfile(
dirname($INC{'CPANPLUS.pm'}),
'..', # lib dir
'bin', # bin dir
$bin, # script
)
);
$path = $maybe and last BIN if -f $maybe;

### you installed CPANPLUS in a custom prefix,
### so go parallel to /that/. PREFIX=/tmp/cp
### would put cpanp-run-perl in /tmp/cp/bin and
### CPANPLUS.pm in
### /tmp/cp/lib/perl5/site_perl/5.8.8
$maybe = File::Spec->rel2abs(
File::Spec->catfile(
dirname( $INC{'CPANPLUS.pm'} ),
'..', '..', '..', '..', # 4x updir
'bin', # bin dir
$bin, # script
)
);
$path = $maybe and last BIN if -f $maybe;

### in your path -- take this one last, the
### previous two assume extracted tarballs
### or user installs
### note that we don't use 'can_run' as it's
### not an executable, just a wrapper...
### prefer anything that's found in the path paralel to your $^X
for my $dir (File::Spec->rel2abs( dirname($^X) ),
split(/\Q$Config::Config{path_sep}\E/, $ENV{PATH}),
File::Spec->curdir,
) {

### On VMS the path could be in UNIX format, and we
### currently need it to be in VMS format
$dir = VMS::Filespec::vmspath($dir) if ON_VMS;

$maybe = File::Spec->catfile( $dir, $bin );
$path = $maybe and last BIN if -f $maybe;
}
}

### we should have a $path by now ideally, if so return it
return $path if defined $path;

### CPANPLUS::Dist::MM doesn't require this anymore
### but CPANPLUS::Dist::Build might if it is less than 0.60
my $cpdb = check_install( module => INSTALLER_BUILD );
return '' unless
$cpdb and eval { version->parse($cpdb->{version}) < version->parse('0.60') };

### if not, warn about it and give sensible default.
### XXX try to be a no-op instead then..
### cross your fingers...
### pass '-P' to perl: "run program through C
### preprocessor before compilation"
### XXX using -P actually changes the way some Makefile.PLs
### are executed, so don't do that... --kane
error(loc(
"Could not find the '%1' binary in your path".
"--this may be a problem.\n".
"Please locate this program and set ".
"your '%2' config entry to its path.\n".
"From the default shell, you can do this by typing:\n\n".
" %3\n".
" %4\n",
$name, 'perlwrapper',
's program perlwrapper FULL_PATH_TO_CPANP_RUN_PERL',
's save'
));
return '';
}->();

=back

=cut

sub new {
my $class = shift;
my $obj = $class->SUPER::new;

$obj->mk_accessors( keys %$Conf );

for my $acc ( keys %$Conf ) {
my $subobj = Object::Accessor->new;
$subobj->mk_accessors( keys %{$Conf->{$acc}} );

### read in all the settings from the sub accessors;
for my $subacc ( $subobj->ls_accessors ) {
$subobj->$subacc( $Conf->{$acc}->{$subacc} );
}

### now store it in the parent object
$obj->$acc( $subobj );
}

$obj->_clean_up_paths;

### shut up IPC::Cmd warning about not findin IPC::Run on win32
$IPC::Cmd::WARN = 0;

return $obj;
}

sub _clean_up_paths {
my $self = shift;

### clean up paths if we are on win32
if( $^O eq 'MSWin32' ) {
for my $pgm ( $self->program->ls_accessors ) {
my $path = $self->program->$pgm;

### paths with whitespace needs to be shortened
### for shell outs.
if ($path and $path =~ /\s+/) {
my($prog, $args);

### patch from Steve Hay, 13nd of June 2007
### msg-id: <[email protected]>
### windows directories are not allowed to end with
### a space, so any occurrence of '\w\s+/\w+' means
### we're dealing with arguments, not directory
### names.
if ($path =~ /^(.*?)(\s+\/.*$)/) {
($prog, $args) = ($1, $2);

### otherwise, there are no arguments
} else {
($prog, $args) = ($path, '');
}

$prog = Win32::GetShortPathName( $prog );
$self->program->$pgm( $prog . $args );
}
}
}

return 1;
}

1;

=pod

=head1 BUG REPORTS

Please report bugs or other issues to E<lt>[email protected]<gt>.

=head1 AUTHOR

This module by Jos Boumans E<lt>[email protected]<gt>.

=head1 COPYRIGHT

The CPAN++ interface (of which this module is a part of) is copyright (c)
2001 - 2007, Jos Boumans E<lt>[email protected]<gt>. All rights reserved.

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

=head1 SEE ALSO

L<CPANPLUS::Backend>, L<CPANPLUS::Configure::Setup>, L<CPANPLUS::Configure>

=cut

# Local variables:
# c-indentation-style: bsd
# c-basic-offset: 4
# indent-tabs-mode: nil
# End:
# vim: expandtab shiftwidth=4: