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-package CPANPLUS::Internals::Search;
-use deprecate;
-
-use strict;
-
-use CPANPLUS::Error;
-use CPANPLUS::Internals::Constants;
-use CPANPLUS::Module;
-use CPANPLUS::Module::Author;
-
-use File::Find;
-use File::Spec;
-
-use Params::Check qw[check allow];
-use Locale::Maketext::Simple Class => 'CPANPLUS', Style => 'gettext';
-
-use vars qw[$VERSION];
-$VERSION = "0.9135";
-
-$Params::Check::VERBOSE = 1;
-
-=pod
-
-=head1 NAME
-
-CPANPLUS::Internals::Search - internals for searching for modules
-
-=head1 SYNOPSIS
-
- my $aref = $cpan->_search_module_tree(
- type => 'package',
- allow => [qr/DBI/],
- );
-
- my $aref = $cpan->_search_author_tree(
- type => 'cpanid',
- data => \@old_results,
- verbose => 1,
- allow => [qw|KANE AUTRIJUS|],
- );
-
- my $aref = $cpan->_all_installed( );
-
-=head1 DESCRIPTION
-
-The functions in this module are designed to find module(objects)
-based on certain criteria and return them.
-
-=head1 METHODS
-
-=head2 _search_module_tree( type => TYPE, allow => \@regexes, [data => \@previous_results ] )
-
-Searches the moduletree for module objects matching the criteria you
-specify. Returns an array ref of module objects on success, and false
-on failure.
-
-It takes the following arguments:
-
-=over 4
-
-=item type
-
-This can be any of the accessors for the C<CPANPLUS::Module> objects.
-This is a required argument.
-
-=item allow
-
-A set of rules, or more precisely, a list of regexes (via C<qr//> or
-plain strings), that the C<type> must adhere too. You can specify as
-many as you like, and it will be treated as an C<OR> search.
-For an C<AND> search, see the C<data> argument.
-
-This is a required argument.
-
-=item data
-
-An arrayref of previous search results. This is the way to do an C<AND>
-search -- C<_search_module_tree> will only search the module objects
-specified in C<data> if provided, rather than the moduletree itself.
-
-=back
-
-=cut
-
-# Although the Params::Check solution is more graceful, it is WAY too slow.
-#
-# This sample script:
-#
-# use CPANPLUS::Backend;
-# my $cb = new CPANPLUS::Backend;
-# $cb->module_tree;
-# my @list = $cb->search( type => 'module', allow => [qr/^Acme/] );
-# print $_->module, $/ for @list;
-#
-# Produced the following output using Dprof WITH params::check code
-#
-# Total Elapsed Time = 3.670024 Seconds
-# User+System Time = 3.390373 Seconds
-# Exclusive Times
-# %Time ExclSec CumulS #Calls sec/call Csec/c Name
-# 88.7 3.008 4.463 20610 0.0001 0.0002 Params::Check::check
-# 47.4 1.610 1.610 1 1.6100 1.6100 Storable::net_pstore
-# 25.6 0.869 0.737 20491 0.0000 0.0000 Locale::Maketext::Simple::_default
-# _gettext
-# 23.2 0.789 0.524 40976 0.0000 0.0000 Params::Check::_who_was_it
-# 23.2 0.789 0.677 20610 0.0000 0.0000 Params::Check::_sanity_check
-# 19.7 0.670 0.670 1 0.6700 0.6700 Storable::pretrieve
-# 14.1 0.480 0.211 41350 0.0000 0.0000 Params::Check::_convert_case
-# 11.5 0.390 0.256 20610 0.0000 0.0000 Params::Check::_hashdefs
-# 11.5 0.390 0.255 20697 0.0000 0.0000 Params::Check::_listreqs
-# 11.4 0.389 0.177 20653 0.0000 0.0000 Params::Check::_canon_key
-# 10.9 0.370 0.356 20697 0.0000 0.0000 Params::Check::_hasreq
-# 8.02 0.272 4.750 1 0.2723 4.7501 CPANPLUS::Internals::Search::_sear
-# ch_module_tree
-# 6.49 0.220 0.086 20653 0.0000 0.0000 Params::Check::_iskey
-# 6.19 0.210 0.077 20488 0.0000 0.0000 Params::Check::_store_error
-# 5.01 0.170 0.036 20680 0.0000 0.0000 CPANPLUS::Module::__ANON__
-#
-# and this output /without/
-#
-# Total Elapsed Time = 2.803426 Seconds
-# User+System Time = 2.493426 Seconds
-# Exclusive Times
-# %Time ExclSec CumulS #Calls sec/call Csec/c Name
-# 56.9 1.420 1.420 1 1.4200 1.4200 Storable::net_pstore
-# 25.6 0.640 0.640 1 0.6400 0.6400 Storable::pretrieve
-# 9.22 0.230 0.096 20680 0.0000 0.0000 CPANPLUS::Module::__ANON__
-# 7.06 0.176 0.272 1 0.1762 0.2719 CPANPLUS::Internals::Search::_sear
-# ch_module_tree
-# 3.21 0.080 0.098 10 0.0080 0.0098 IPC::Cmd::BEGIN
-# 1.60 0.040 0.205 13 0.0031 0.0158 CPANPLUS::Internals::BEGIN
-# 1.20 0.030 0.030 29 0.0010 0.0010 vars::BEGIN
-# 1.20 0.030 0.117 10 0.0030 0.0117 Log::Message::BEGIN
-# 1.20 0.030 0.029 9 0.0033 0.0033 CPANPLUS::Internals::Search::BEGIN
-# 0.80 0.020 0.020 5 0.0040 0.0040 DynaLoader::dl_load_file
-# 0.80 0.020 0.127 10 0.0020 0.0127 CPANPLUS::Module::BEGIN
-# 0.80 0.020 0.389 2 0.0099 0.1944 main::BEGIN
-# 0.80 0.020 0.359 12 0.0017 0.0299 CPANPLUS::Backend::BEGIN
-# 0.40 0.010 0.010 30 0.0003 0.0003 Config::FETCH
-# 0.40 0.010 0.010 18 0.0006 0.0005 Locale::Maketext::Simple::load_loc
-#
-
-sub _search_module_tree {
-
- my $self = shift;
- my $conf = $self->configure_object;
- my %hash = @_;
-
- my($mods,$list,$verbose,$type);
- my $tmpl = {
- data => { default => [],
- strict_type=> 1, store => \$mods },
- allow => { required => 1, default => [ ], strict_type => 1,
- store => \$list },
- verbose => { default => $conf->get_conf('verbose'),
- store => \$verbose },
- type => { required => 1, allow => [CPANPLUS::Module->accessors()],
- store => \$type },
- };
-
- my $args = do {
- ### don't check the template for sanity
- ### -- we know it's good and saves a lot of performance
- local $Params::Check::SANITY_CHECK_TEMPLATE = 0;
-
- check( $tmpl, \%hash );
- } or return;
-
- ### a list of module objects was supplied
- if( @$mods ) {
- local $Params::Check::VERBOSE = 0;
-
- my @rv;
- for my $mod (@$mods) {
- #push @rv, $mod if check(
- # { $type => { allow => $list } },
- # { $type => $mod->$type() }
- # );
- push @rv, $mod if allow( $mod->$type() => $list );
-
- }
- return \@rv;
-
- } else {
- my @rv = $self->_source_search_module_tree(
- allow => $list,
- type => $type,
- );
- return \@rv;
- }
-}
-
-=pod
-
-=head2 _search_author_tree( type => TYPE, allow => \@regexex, [data => \@previous_results ] )
-
-Searches the authortree for author objects matching the criteria you
-specify. Returns an array ref of author objects on success, and false
-on failure.
-
-It takes the following arguments:
-
-=over 4
-
-=item type
-
-This can be any of the accessors for the C<CPANPLUS::Module::Author>
-objects. This is a required argument.
-
-=item allow
-
-
-A set of rules, or more precisely, a list of regexes (via C<qr//> or
-plain strings), that the C<type> must adhere too. You can specify as
-many as you like, and it will be treated as an C<OR> search.
-For an C<AND> search, see the C<data> argument.
-
-This is a required argument.
-
-=item data
-
-An arrayref of previous search results. This is the way to do an C<and>
-search -- C<_search_author_tree> will only search the author objects
-specified in C<data> if provided, rather than the authortree itself.
-
-=back
-
-=cut
-
-sub _search_author_tree {
- my $self = shift;
- my $conf = $self->configure_object;
- my %hash = @_;
-
- my($authors,$list,$verbose,$type);
- my $tmpl = {
- data => { default => [],
- strict_type=> 1, store => \$authors },
- allow => { required => 1, default => [ ], strict_type => 1,
- store => \$list },
- verbose => { default => $conf->get_conf('verbose'),
- store => \$verbose },
- type => { required => 1, allow => [CPANPLUS::Module::Author->accessors()],
- store => \$type },
- };
-
- my $args = check( $tmpl, \%hash ) or return;
-
- if( @$authors ) {
- local $Params::Check::VERBOSE = 0;
-
- my @rv;
- for my $auth (@$authors) {
- #push @rv, $auth if check(
- # { $type => { allow => $list } },
- # { $type => $auth->$type }
- # );
- push @rv, $auth if allow( $auth->$type() => $list );
- }
- return \@rv;
- } else {
- my @rv = $self->_source_search_author_tree(
- allow => $list,
- type => $type,
- );
- return \@rv;
- }
-}
-
-=pod
-
-=head2 _all_installed()
-
-This function returns an array ref of module objects of modules that
-are installed on this system.
-
-=cut
-
-sub _all_installed {
- my $self = shift;
- my $conf = $self->configure_object;
- my %hash = @_;
-
- ### File::Find uses follow_skip => 1 by default, which doesn't die
- ### on duplicates, unless they are directories or symlinks.
- ### Ticket #29796 shows this code dying on Alien::WxWidgets,
- ### which uses symlinks.
- ### File::Find doc says to use follow_skip => 2 to ignore duplicates
- ### so this will stop it from dying.
- my %find_args = ( follow_skip => 2 );
-
- ### File::Find uses lstat, which quietly becomes stat on win32
- ### it then uses -l _ which is not allowed by the statbuffer because
- ### you did a stat, not an lstat (duh!). so don't tell win32 to
- ### follow symlinks, as that will break badly
- $find_args{'follow_fast'} = 1 unless ON_WIN32;
-
- ### never use the @INC hooks to find installed versions of
- ### modules -- they're just there in case they're not on the
- ### perl install, but the user shouldn't trust them for *other*
- ### modules!
- ### XXX CPANPLUS::inc is now obsolete, remove the calls
- #local @INC = CPANPLUS::inc->original_inc;
-
- my %seen; my @rv;
- for my $dir (@INC ) {
- next if $dir eq '.';
-
- ### not a directory after all
- ### may be coderef or some such
- next unless -d $dir;
-
- ### make sure to clean up the directories just in case,
- ### as we're making assumptions about the length
- ### This solves rt.cpan issue #19738
-
- ### John M. notes: On VMS cannonpath can not currently handle
- ### the $dir values that are in UNIX format.
- $dir = File::Spec->canonpath( $dir ) unless ON_VMS;
-
- ### have to use F::S::Unix on VMS, or things will break
- my $file_spec = ON_VMS ? 'File::Spec::Unix' : 'File::Spec';
-
- ### XXX in some cases File::Find can actually die!
- ### so be safe and wrap it in an eval.
- eval { File::Find::find(
- { %find_args,
- wanted => sub {
-
- return unless /\.pm$/i;
- my $mod = $File::Find::name;
-
- ### make sure it's in Unix format, as it
- ### may be in VMS format on VMS;
- $mod = VMS::Filespec::unixify( $mod ) if ON_VMS;
-
- $mod = substr($mod, length($dir) + 1, -3);
- $mod = join '::', $file_spec->splitdir($mod);
-
- return if $seen{$mod}++;
-
- my $modobj = $self->module_tree($mod);
-
- ### separate return, a list context return with one ''
- ### in it, is also true!
- return unless $modobj;
-
- push @rv, $modobj;
- },
- }, $dir
- ) };
-
- ### report the error if file::find died
- error(loc("Error finding installed files in '%1': %2", $dir, $@)) if $@;
- }
-
- return \@rv;
-}
-
-1;
-
-# Local variables:
-# c-indentation-style: bsd
-# c-basic-offset: 4
-# indent-tabs-mode: nil
-# End:
-# vim: expandtab shiftwidth=4: