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Diffstat (limited to 'Master/tlpkg/tlperl0/lib/CPANPLUS/Internals/Search.pm')
-rwxr-xr-x | Master/tlpkg/tlperl0/lib/CPANPLUS/Internals/Search.pm | 363 |
1 files changed, 363 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl0/lib/CPANPLUS/Internals/Search.pm b/Master/tlpkg/tlperl0/lib/CPANPLUS/Internals/Search.pm new file mode 100755 index 00000000000..63c4da64d92 --- /dev/null +++ b/Master/tlpkg/tlperl0/lib/CPANPLUS/Internals/Search.pm @@ -0,0 +1,363 @@ +package CPANPLUS::Internals::Search; + +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'; + +$Params::Check::VERBOSE = 1; + +=pod + +=head1 NAME + +CPANPLUS::Internals::Search + +=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); + + ### seperate 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: |