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//usr/share/perl5/CPANPLUS/Backend.pm
package CPANPLUS::Backend; use strict; use CPANPLUS::Error; use CPANPLUS::Configure; use CPANPLUS::Internals; use CPANPLUS::Internals::Constants; use CPANPLUS::Module; use CPANPLUS::Module::Author; use CPANPLUS::Backend::RV; use FileHandle; use File::Spec (); use File::Spec::Unix (); use File::Basename (); use Params::Check qw[check]; use Locale::Maketext::Simple Class => 'CPANPLUS', Style => 'gettext'; $Params::Check::VERBOSE = 1; use vars qw[@ISA $VERSION]; @ISA = qw[CPANPLUS::Internals]; $VERSION = $CPANPLUS::Internals::VERSION; ### mark that we're running under CPANPLUS to spawned processes $ENV{'PERL5_CPANPLUS_IS_RUNNING'} = $$; ### XXX version.pm MAY format this version, if it's in use... :( ### so for consistency, just call ->VERSION ourselves as well. $ENV{'PERL5_CPANPLUS_IS_VERSION'} = __PACKAGE__->VERSION; =pod =head1 NAME CPANPLUS::Backend =head1 SYNOPSIS my $cb = CPANPLUS::Backend->new; my $conf = $cb->configure_object; my $author = $cb->author_tree('KANE'); my $mod = $cb->module_tree('Some::Module'); my $mod = $cb->parse_module( module => 'Some::Module' ); my @objs = $cb->search( type => TYPE, allow => [...] ); $cb->flush('all'); $cb->reload_indices; $cb->local_mirror; =head1 DESCRIPTION This module provides the programmer's interface to the C<CPANPLUS> libraries. =head1 ENVIRONMENT When C<CPANPLUS::Backend> is loaded, which is necessary for just about every <CPANPLUS> operation, the environment variable C<PERL5_CPANPLUS_IS_RUNNING> is set to the current process id. Additionally, the environment variable C<PERL5_CPANPLUS_IS_VERSION> will be set to the version of C<CPANPLUS::Backend>. This information might be useful somehow to spawned processes. =head1 METHODS =head2 $cb = CPANPLUS::Backend->new( [CONFIGURE_OBJ] ) This method returns a new C<CPANPLUS::Backend> object. This also initialises the config corresponding to this object. You have two choices in this: =over 4 =item Provide a valid C<CPANPLUS::Configure> object This will be used verbatim. =item No arguments Your default config will be loaded and used. =back New will return a C<CPANPLUS::Backend> object on success and die on failure. =cut sub new { my $class = shift; my $conf; if( $_[0] && IS_CONFOBJ->( conf => $_[0] ) ) { $conf = shift; } else { $conf = CPANPLUS::Configure->new() or return; } my $self = $class->SUPER::_init( _conf => $conf ); return $self; } =pod =head2 $href = $cb->module_tree( [@modules_names_list] ) Returns a reference to the CPANPLUS module tree. If you give it any arguments, they will be treated as module names and C<module_tree> will try to look up these module names and return the corresponding module objects instead. See L<CPANPLUS::Module> for the operations you can perform on a module object. =cut sub module_tree { my $self = shift; my $modtree = $self->_module_tree; if( @_ ) { my @rv; for my $name ( grep { defined } @_) { ### From John Malmberg: This is failing on VMS ### because ODS-2 does not retain the case of ### filenames that are created. ### The problem is the filename is being converted ### to a module name and then looked up in the ### %$modtree hash. ### ### As a fix, we do a search on VMS instead -- ### more cpu cycles, but it gets around the case ### problem --kane my ($modobj) = do { ON_VMS ? $self->search( type => 'module', allow => [qr/^$name$/i], ) : $modtree->{$name} }; push @rv, $modobj || ''; } return @rv == 1 ? $rv[0] : @rv; } else { return $modtree; } } =pod =head2 $href = $cb->author_tree( [@author_names_list] ) Returns a reference to the CPANPLUS author tree. If you give it any arguments, they will be treated as author names and C<author_tree> will try to look up these author names and return the corresponding author objects instead. See L<CPANPLUS::Module::Author> for the operations you can perform on an author object. =cut sub author_tree { my $self = shift; my $authtree = $self->_author_tree; if( @_ ) { my @rv; for my $name (@_) { push @rv, $authtree->{$name} || ''; } return @rv == 1 ? $rv[0] : @rv; } else { return $authtree; } } =pod =head2 $conf = $cb->configure_object; Returns a copy of the C<CPANPLUS::Configure> object. See L<CPANPLUS::Configure> for operations you can perform on a configure object. =cut sub configure_object { return shift->_conf() }; =head2 $su = $cb->selfupdate_object; Returns a copy of the C<CPANPLUS::Selfupdate> object. See the L<CPANPLUS::Selfupdate> manpage for the operations you can perform on the selfupdate object. =cut sub selfupdate_object { return shift->_selfupdate() }; =pod =head2 @mods = $cb->search( type => TYPE, allow => AREF, [data => AREF, verbose => BOOL] ) C<search> enables you to search for either module or author objects, based on their data. The C<type> you can specify is any of the accessors specified in C<CPANPLUS::Module::Author> or C<CPANPLUS::Module>. C<search> will determine by the C<type> you specified whether to search by author object or module object. You have to specify an array reference of regular expressions or strings to match against. The rules used for this array ref are the same as in C<Params::Check>, so read that manpage for details. The search is an C<or> search, meaning that if C<any> of the criteria match, the search is considered to be successful. You can specify the result of a previous search as C<data> to limit the new search to these module or author objects, rather than the entire module or author tree. This is how you do C<and> searches. Returns a list of module or author objects on success and false on failure. See L<CPANPLUS::Module> for the operations you can perform on a module object. See L<CPANPLUS::Module::Author> for the operations you can perform on an author object. =cut sub search { my $self = shift; my $conf = $self->configure_object; my %hash = @_; my ($type); my $args = do { local $Params::Check::NO_DUPLICATES = 0; local $Params::Check::ALLOW_UNKNOWN = 1; my $tmpl = { type => { required => 1, allow => [CPANPLUS::Module->accessors(), CPANPLUS::Module::Author->accessors()], store => \$type }, allow => { required => 1, default => [ ], strict_type => 1 }, }; check( $tmpl, \%hash ) } or return; ### figure out whether it was an author or a module search ### when ambiguous, it'll be an author search. my $aref; if( grep { $type eq $_ } CPANPLUS::Module::Author->accessors() ) { $aref = $self->_search_author_tree( %$args ); } else { $aref = $self->_search_module_tree( %$args ); } return @$aref if $aref; return; } =pod =head2 $backend_rv = $cb->fetch( modules => \@mods ) Fetches a list of modules. C<@mods> can be a list of distribution names, module names or module objects--basically anything that L<parse_module> can understand. See the equivalent method in C<CPANPLUS::Module> for details on other options you can pass. Since this is a multi-module method call, the return value is implemented as a C<CPANPLUS::Backend::RV> object. Please consult that module's documentation on how to interpret the return value. =head2 $backend_rv = $cb->extract( modules => \@mods ) Extracts a list of modules. C<@mods> can be a list of distribution names, module names or module objects--basically anything that L<parse_module> can understand. See the equivalent method in C<CPANPLUS::Module> for details on other options you can pass. Since this is a multi-module method call, the return value is implemented as a C<CPANPLUS::Backend::RV> object. Please consult that module's documentation on how to interpret the return value. =head2 $backend_rv = $cb->install( modules => \@mods ) Installs a list of modules. C<@mods> can be a list of distribution names, module names or module objects--basically anything that L<parse_module> can understand. See the equivalent method in C<CPANPLUS::Module> for details on other options you can pass. Since this is a multi-module method call, the return value is implemented as a C<CPANPLUS::Backend::RV> object. Please consult that module's documentation on how to interpret the return value. =head2 $backend_rv = $cb->readme( modules => \@mods ) Fetches the readme for a list of modules. C<@mods> can be a list of distribution names, module names or module objects--basically anything that L<parse_module> can understand. See the equivalent method in C<CPANPLUS::Module> for details on other options you can pass. Since this is a multi-module method call, the return value is implemented as a C<CPANPLUS::Backend::RV> object. Please consult that module's documentation on how to interpret the return value. =head2 $backend_rv = $cb->files( modules => \@mods ) Returns a list of files used by these modules if they are installed. C<@mods> can be a list of distribution names, module names or module objects--basically anything that L<parse_module> can understand. See the equivalent method in C<CPANPLUS::Module> for details on other options you can pass. Since this is a multi-module method call, the return value is implemented as a C<CPANPLUS::Backend::RV> object. Please consult that module's documentation on how to interpret the return value. =head2 $backend_rv = $cb->distributions( modules => \@mods ) Returns a list of module objects representing all releases for this module on success. C<@mods> can be a list of distribution names, module names or module objects, basically anything that L<parse_module> can understand. See the equivalent method in C<CPANPLUS::Module> for details on other options you can pass. Since this is a multi-module method call, the return value is implemented as a C<CPANPLUS::Backend::RV> object. Please consult that module's documentation on how to interpret the return value. =cut ### XXX add direcotry_tree, packlist etc? or maybe remove files? ### for my $func (qw[fetch extract install readme files distributions]) { no strict 'refs'; *$func = sub { my $self = shift; my $conf = $self->configure_object; my %hash = @_; my ($mods); my $args = do { local $Params::Check::NO_DUPLICATES = 1; local $Params::Check::ALLOW_UNKNOWN = 1; my $tmpl = { modules => { default => [], strict_type => 1, required => 1, store => \$mods }, }; check( $tmpl, \%hash ); } or return; ### make them all into module objects ### my %mods = map { $_ => $self->parse_module(module => $_) || '' } @$mods; my $flag; my $href; while( my($name,$obj) = each %mods ) { $href->{$name} = IS_MODOBJ->( mod => $obj ) ? $obj->$func( %$args ) : undef; $flag++ unless $href->{$name}; } return CPANPLUS::Backend::RV->new( function => $func, ok => !$flag, rv => $href, args => \%hash, ); } } =pod =head2 $mod_obj = $cb->parse_module( module => $modname|$distname|$modobj|URI|PATH ) C<parse_module> tries to find a C<CPANPLUS::Module> object that matches your query. Here's a list of examples you could give to C<parse_module>; =over 4 =item Text::Bastardize =item Text-Bastardize =item Text-Bastardize-1.06 =item AYRNIEU/Text-Bastardize =item AYRNIEU/Text-Bastardize-1.06 =item AYRNIEU/Text-Bastardize-1.06.tar.gz =item http://example.com/Text-Bastardize-1.06.tar.gz =item file:///tmp/Text-Bastardize-1.06.tar.gz =item /tmp/Text-Bastardize-1.06 =item ./Text-Bastardize-1.06 =item . =back These items would all come up with a C<CPANPLUS::Module> object for C<Text::Bastardize>. The ones marked explicitly as being version 1.06 would give back a C<CPANPLUS::Module> object of that version. Even if the version on CPAN is currently higher. The last three are examples of PATH resolution. In the first, we supply an absolute path to the unwrapped distribution. In the second the distribution is relative to the current working directory. In the third, we will use the current working directory. If C<parse_module> is unable to actually find the module you are looking for in its module tree, but you supplied it with an author, module and version part in a distribution name or URI, it will create a fake C<CPANPLUS::Module> object for you, that you can use just like the real thing. See L<CPANPLUS::Module> for the operations you can perform on a module object. If even this fancy guessing doesn't enable C<parse_module> to create a fake module object for you to use, it will warn about an error and return false. =cut sub parse_module { my $self = shift; my $conf = $self->configure_object; my %hash = @_; my $mod; my $tmpl = { module => { required => 1, store => \$mod }, }; my $args = check( $tmpl, \%hash ) or return; return $mod if IS_MODOBJ->( module => $mod ); ### ok, so it's not a module object, but a ref nonetheless? ### what are you smoking? if( ref $mod ) { error(loc("Can not parse module string from reference '%1'", $mod )); return; } ### check only for allowed characters in a module name unless( $mod =~ /[^\w:]/ ) { ### perhaps we can find it in the module tree? my $maybe = $self->module_tree($mod); return $maybe if IS_MODOBJ->( module => $maybe ); } ### Special case arbitary file paths such as '.' etc. if (-d File::Spec->rel2abs($mod) ) { my $dir = File::Spec->rel2abs($mod); my $parent = File::Spec->rel2abs( File::Spec->catdir( $dir, '..' ) ); ### fix paths on VMS if (ON_VMS) { $dir = VMS::Filespec::unixify($dir); $parent = VMS::Filespec::unixify($parent); } my $dist = $mod = File::Basename::basename($dir); $dist .= '-0' unless $dist =~ /\-[0-9._]+$/; $dist .= '.tar.gz' unless $dist =~ /\.[A-Za-z]+$/; my $modobj = CPANPLUS::Module::Fake->new( module => $mod, version => 0, package => $dist, path => $parent, author => CPANPLUS::Module::Author::Fake->new ); ### better guess for the version $modobj->version( $modobj->package_version ) if defined $modobj->package_version; ### better guess at module name, if possible if ( my $pkgname = $modobj->package_name ) { $pkgname =~ s/-/::/g; ### no sense replacing it unless we changed something $modobj->module( $pkgname ) if ($pkgname ne $modobj->package_name) || $pkgname !~ /-/; } $modobj->status->fetch( $parent ); $modobj->status->extract( $dir ); $modobj->get_installer_type; return $modobj; } ### ok, so it looks like a distribution then? my @parts = split '/', $mod; my $dist = pop @parts; ### ah, it's a URL if( $mod =~ m|\w+://.+| ) { my $modobj = CPANPLUS::Module::Fake->new( module => $dist, version => 0, package => $dist, path => File::Spec::Unix->catdir( $conf->_get_mirror('base'), UNKNOWN_DL_LOCATION ), author => CPANPLUS::Module::Author::Fake->new ); ### set the fetch_from accessor so we know to by pass the ### usual mirrors $modobj->status->_fetch_from( $mod ); ### better guess for the version $modobj->version( $modobj->package_version ) if defined $modobj->package_version; ### better guess at module name, if possible if ( my $pkgname = $modobj->package_name ) { $pkgname =~ s/-/::/g; ### no sense replacing it unless we changed something $modobj->module( $pkgname ) if ($pkgname ne $modobj->package_name) || $pkgname !~ /-/; } return $modobj; } ### perhaps we can find it's a third party module? { my $modobj = CPANPLUS::Module::Fake->new( module => $mod, version => 0, package => $dist, path => File::Spec::Unix->catdir( $conf->_get_mirror('base'), UNKNOWN_DL_LOCATION ), author => CPANPLUS::Module::Author::Fake->new ); if( $modobj->is_third_party ) { my $info = $modobj->third_party_information; $modobj->author->author( $info->{author} ); $modobj->author->email( $info->{author_url} ); $modobj->description( $info->{url} ); return $modobj; } } unless( $dist ) { error( loc("%1 is not a proper distribution name!", $mod) ); return; } ### there's wonky uris out there, like this: ### E/EY/EYCK/Net/Lite/Net-Lite-FTP-0.091 ### compensate for that my $author; ### you probably have an A/AB/ABC/....../Dist.tgz type uri if( (defined $parts[0] and length $parts[0] == 1) and (defined $parts[1] and length $parts[1] == 2) and $parts[2] =~ /^$parts[0]/i and $parts[2] =~ /^$parts[1]/i ) { splice @parts, 0, 2; # remove the first 2 entries from the list $author = shift @parts; # this is the actual author name then ### we''ll assume a ABC/..../Dist.tgz } else { $author = shift @parts || ''; } my($pkg, $version, $ext, $full) = $self->_split_package_string( package => $dist ); ### translate a distribution into a module name ### my $guess = $pkg; $guess =~ s/-/::/g if $guess; my $maybe = $self->module_tree( $guess ); if( IS_MODOBJ->( module => $maybe ) ) { ### maybe you asked for a package instead if ( $maybe->package eq $mod ) { return $maybe; ### perhaps an outdated version instead? } elsif ( $version ) { my $auth_obj; my $path; ### did you give us an author part? ### if( $author ) { $auth_obj = CPANPLUS::Module::Author::Fake->new( _id => $maybe->_id, cpanid => uc $author, author => uc $author, ); $path = File::Spec::Unix->catdir( $conf->_get_mirror('base'), substr(uc $author, 0, 1), substr(uc $author, 0, 2), uc $author, @parts, #possible sub dirs ); } else { $auth_obj = $maybe->author; $path = $maybe->path; } if( $maybe->package_name eq $pkg ) { my $modobj = CPANPLUS::Module::Fake->new( module => $maybe->module, version => $version, ### no extension? use the extension the original package ### had instead package => do { $ext ? $full : $full .'.'. $maybe->package_extension }, path => $path, author => $auth_obj, _id => $maybe->_id ); return $modobj; ### you asked for a specific version? ### assume our $maybe is the one you wanted, ### and fix up the version.. } else { my $modobj = $maybe->clone; $modobj->version( $version ); $modobj->package( $maybe->package_name .'-'. $version .'.'. $maybe->package_extension ); ### you wanted a specific author, but it's not the one ### from the module tree? we'll fix it up if( $author and $author ne $modobj->author->cpanid ) { $modobj->author( $auth_obj ); $modobj->path( $path ); } return $modobj; } ### you didn't care about a version, so just return the object then } elsif ( !$version ) { return $maybe; } ### ok, so we can't find it, and it's not an outdated dist either ### perhaps we can fake one based on the author name and so on } elsif ( $author and $version ) { ### be extra friendly and pad the .tar.gz suffix where needed ### it's just a guess of course, but most dists are .tar.gz $dist .= '.tar.gz' unless $dist =~ /\.[A-Za-z]+$/; ### XXX duplication from above for generating author obj + path... my $modobj = CPANPLUS::Module::Fake->new( module => $guess, version => $version, package => $dist, author => CPANPLUS::Module::Author::Fake->new( author => uc $author, cpanid => uc $author, _id => $self->_id, ), path => File::Spec::Unix->catdir( $conf->_get_mirror('base'), substr(uc $author, 0, 1), substr(uc $author, 0, 2), uc $author, @parts, #possible subdirs ), _id => $self->_id, ); return $modobj; ### face it, we have /no/ idea what he or she wants... ### let's start putting the blame somewhere } else { unless( $author ) { error( loc( "'%1' does not contain an author part", $mod ) ); } error( loc( "Cannot find '%1' in the module tree", $mod ) ); } return; } =pod =head2 $bool = $cb->reload_indices( [update_source => BOOL, verbose => BOOL] ); This method reloads the source files. If C<update_source> is set to true, this will fetch new source files from your CPAN mirror. Otherwise, C<reload_indices> will do its usual cache checking and only update them if they are out of date. By default, C<update_source> will be false. The verbose setting defaults to what you have specified in your config file. Returns true on success and false on failure. =cut sub reload_indices { my $self = shift; my %hash = @_; my $conf = $self->configure_object; my $tmpl = { update_source => { default => 0, allow => [qr/^\d$/] }, verbose => { default => $conf->get_conf('verbose') }, }; my $args = check( $tmpl, \%hash ) or return; ### make a call to the internal _module_tree, so it triggers cache ### file age my $uptodate = $self->_check_trees( %$args ); return 1 if $self->_build_trees( uptodate => $uptodate, use_stored => 0, verbose => $conf->get_conf('verbose'), ); error( loc( "Error rebuilding source trees!" ) ); return; } =pod =head2 $bool = $cb->flush(CACHE_NAME) This method allows flushing of caches. There are several things which can be flushed: =over 4 =item * C<methods> The return status of methods which have been attempted, such as different ways of fetching files. It is recommended that automatic flushing be used instead. =item * C<hosts> The return status of URIs which have been attempted, such as different hosts of fetching files. It is recommended that automatic flushing be used instead. =item * C<modules> Information about modules such as prerequisites and whether installation succeeded, failed, or was not attempted. =item * C<lib> This resets PERL5LIB, which is changed to ensure that while installing modules they are in our @INC. =item * C<load> This resets the cache of modules we've attempted to load, but failed. This enables you to load them again after a failed load, if they somehow have become available. =item * C<all> Flush all of the aforementioned caches. =back Returns true on success and false on failure. =cut sub flush { my $self = shift; my $type = shift or return; my $cache = { methods => [ qw( methods load ) ], hosts => [ qw( hosts ) ], modules => [ qw( modules lib) ], lib => [ qw( lib ) ], load => [ qw( load ) ], all => [ qw( hosts lib modules methods load ) ], }; my $aref = $cache->{$type} or ( error( loc("No such cache '%1'", $type) ), return ); return $self->_flush( list => $aref ); } =pod =head2 @mods = $cb->installed() Returns a list of module objects of all your installed modules. If an error occurs, it will return false. See L<CPANPLUS::Module> for the operations you can perform on a module object. =cut sub installed { my $self = shift; my $aref = $self->_all_installed; return @$aref if $aref; return; } =pod =head2 $bool = $cb->local_mirror([path => '/dir/to/save/to', index_files => BOOL, force => BOOL, verbose => BOOL] ) Creates a local mirror of CPAN, of only the most recent sources in a location you specify. If you set this location equal to a custom host in your C<CPANPLUS::Config> you can use your local mirror to install from. It takes the following arguments: =over 4 =item path The location where to create the local mirror. =item index_files Enable/disable fetching of index files. You can disable fetching of the index files if you don't plan to use the local mirror as your primary site, or if you'd like up-to-date index files be fetched from elsewhere. Defaults to true. =item force Forces refetching of packages, even if they are there already. Defaults to whatever setting you have in your C<CPANPLUS::Config>. =item verbose Prints more messages about what its doing. Defaults to whatever setting you have in your C<CPANPLUS::Config>. =back Returns true on success and false on error. =cut sub local_mirror { my $self = shift; my $conf = $self->configure_object; my %hash = @_; my($path, $index, $force, $verbose); my $tmpl = { path => { default => $conf->get_conf('base'), store => \$path }, index_files => { default => 1, store => \$index }, force => { default => $conf->get_conf('force'), store => \$force }, verbose => { default => $conf->get_conf('verbose'), store => \$verbose }, }; check( $tmpl, \%hash ) or return; unless( -d $path ) { $self->_mkdir( dir => $path ) or( error( loc( "Could not create '%1', giving up", $path ) ), return ); } elsif ( ! -w _ ) { error( loc( "Could not write to '%1', giving up", $path ) ); return; } my $flag; AUTHOR: { for my $auth ( sort { $a->cpanid cmp $b->cpanid } values %{$self->author_tree} ) { MODULE: { my $i; for my $mod ( $auth->modules ) { my $fetchdir = File::Spec->catdir( $path, $mod->path ); my %opts = ( verbose => $verbose, force => $force, fetchdir => $fetchdir, ); ### only do this the for the first module ### unless( $i++ ) { $mod->_get_checksums_file( %opts ) or ( error( loc( "Could not fetch %1 file, " . "skipping author '%2'", CHECKSUMS, $auth->cpanid ) ), $flag++, next AUTHOR ); } $mod->fetch( %opts ) or( error( loc( "Could not fetch '%1'", $mod->module ) ), $flag++, next MODULE ); } } } } if( $index ) { for my $name (qw[auth dslip mod]) { $self->_update_source( name => $name, verbose => $verbose, path => $path, ) or ( $flag++, next ); } } return !$flag; } =pod =head2 $file = $cb->autobundle([path => OUTPUT_PATH, force => BOOL, verbose => BOOL]) Writes out a snapshot of your current installation in C<CPAN> bundle style. This can then be used to install the same modules for a different or on a different machine by issuing the following commands: ### using the default shell: CPAN Terminal> i file://path/to/Snapshot_XXYY.pm ### using the API $modobj = $cb->parse_module( module => 'file://path/to/Snapshot_XXYY.pm' ); $modobj->install; It will, by default, write to an 'autobundle' directory under your cpanplus homedirectory, but you can override that by supplying a C<path> argument. It will return the location of the output file on success and false on failure. =cut sub autobundle { my $self = shift; my $conf = $self->configure_object; my %hash = @_; my($path,$force,$verbose); my $tmpl = { force => { default => $conf->get_conf('force'), store => \$force }, verbose => { default => $conf->get_conf('verbose'), store => \$verbose }, path => { default => File::Spec->catdir( $conf->get_conf('base'), $self->_perl_version( perl => $^X ), $conf->_get_build('distdir'), $conf->_get_build('autobundle') ), store => \$path }, }; check($tmpl, \%hash) or return; unless( -d $path ) { $self->_mkdir( dir => $path ) or( error(loc("Could not create directory '%1'", $path ) ), return ); } my $name; my $file; { ### default filename for the bundle ### my($year,$month,$day) = (localtime)[5,4,3]; $year += 1900; $month++; my $ext = 0; my $prefix = $conf->_get_build('autobundle_prefix'); my $format = "${prefix}_%04d_%02d_%02d_%02d"; BLOCK: { $name = sprintf( $format, $year, $month, $day, $ext); $file = File::Spec->catfile( $path, $name . '.pm' ); -f $file ? ++$ext && redo BLOCK : last BLOCK; } } my $fh; unless( $fh = FileHandle->new( ">$file" ) ) { error( loc( "Could not open '%1' for writing: %2", $file, $! ) ); return; } ### make sure we load the module tree *before* doing this, as it ### starts to chdir all over the place $self->module_tree; my $string = join "\n\n", map { join ' ', $_->module, ($_->installed_version(verbose => 0) || 'undef') } sort { $a->module cmp $b->module } $self->installed; my $now = scalar localtime; my $head = '=head1'; my $pkg = __PACKAGE__; my $version = $self->VERSION; my $perl_v = join '', `$^X -V`; print $fh <<EOF; package $name; \$VERSION = '0.01'; 1; __END__ $head NAME $name - Snapshot of your installation at $now $head SYNOPSIS To install the modules from this snapshot, run: cpanp -i file://full/path/to/${name}.pm $head CONTENTS $string $head CONFIGURATION $perl_v $head AUTHOR This bundle has been generated autotomatically by $pkg $version EOF close $fh; return $file; } =head2 $bool = $cb->save_state Explicit command to save memory state to disk. This can be used to save information to disk about where a module was extracted, the result of C<make test>, etc. This will then be re-loaded into memory when a new session starts. The capability of saving state to disk depends on the source engine being used (See C<CPANPLUS::Config> for the option to choose your source engine). The default storage engine supports this option. Most users will not need this command, but it can handy for automated systems like setting up CPAN smoke testers. The method will return true if it managed to save the state to disk, or false if it did not. =cut sub save_state { my $self = shift; return $self->_save_state( @_ ); } ### XXX these wrappers are not individually tested! only the underlying ### code through source.t and indirectly trought he CustomSource plugin. =pod =head1 CUSTOM MODULE SOURCES Besides the sources as provided by the general C<CPAN> mirrors, it's possible to add your own sources list to your C<CPANPLUS> index. The methodology behind this works much like C<Debian's apt-sources>. The methods below show you how to make use of this functionality. Also note that most of these methods are available through the default shell plugin command C</cs>, making them available as shortcuts through the shell and via the commandline. =head2 %files = $cb->list_custom_sources Returns a mapping of registered custom sources and their local indices as follows: /full/path/to/local/index => http://remote/source Note that any file starting with an C<#> is being ignored. =cut sub list_custom_sources { return shift->__list_custom_module_sources( @_ ); } =head2 $local_index = $cb->add_custom_source( uri => URI, [verbose => BOOL] ); Adds an C<URI> to your own sources list and mirrors its index. See the documentation on C<< $cb->update_custom_source >> on how this is done. Returns the full path to the local index on success, or false on failure. Note that when adding a new C<URI>, the change to the in-memory tree is not saved until you rebuild or save the tree to disk again. You can do this using the C<< $cb->reload_indices >> method. =cut sub add_custom_source { return shift->_add_custom_module_source( @_ ); } =head2 $local_index = $cb->remove_custom_source( uri => URI, [verbose => BOOL] ); Removes an C<URI> from your own sources list and removes its index. To find out what C<URI>s you have as part of your own sources list, use the C<< $cb->list_custom_sources >> method. Returns the full path to the deleted local index file on success, or false on failure. =cut ### XXX do clever dispatching based on arg number? sub remove_custom_source { return shift->_remove_custom_module_source( @_ ); } =head2 $bool = $cb->update_custom_source( [remote => URI] ); Updates the indexes for all your custom sources. It does this by fetching a file called C<packages.txt> in the root of the custom sources's C<URI>. If you provide the C<remote> argument, it will only update the index for that specific C<URI>. Here's an example of how custom sources would resolve into index files: file:///path/to/sources => file:///path/to/sources/packages.txt http://example.com/sources => http://example.com/sources/packages.txt ftp://example.com/sources => ftp://example.com/sources/packages.txt The file C<packages.txt> simply holds a list of packages that can be found under the root of the C<URI>. This file can be automatically generated for you when the remote source is a C<file:// URI>. For C<http://>, C<ftp://>, and similar, the administrator of that repository should run the method C<< $cb->write_custom_source_index >> on the repository to allow remote users to index it. For details, see the C<< $cb->write_custom_source_index >> method below. All packages that are added via this mechanism will be attributed to the author with C<CPANID> C<LOCAL>. You can use this id to search for all added packages. =cut sub update_custom_source { my $self = shift; ### if it mentions /remote/, the request is to update a single uri, ### not all the ones we have, so dispatch appropriately my $rv = grep( /remote/i, @_) ? $self->__update_custom_module_source( @_ ) : $self->__update_custom_module_sources( @_ ); return $rv; } =head2 $file = $cb->write_custom_source_index( path => /path/to/package/root, [to => /path/to/index/file, verbose => BOOL] ); Writes the index for a custom repository root. Most users will not have to worry about this, but administrators of a repository will need to make sure their indexes are up to date. The index will be written to a file called C<packages.txt> in your repository root, which you can specify with the C<path> argument. You can override this location by specifying the C<to> argument, but in normal operation, that should not be required. Once the index file is written, users can then add the C<URI> pointing to the repository to their custom list of sources and start using it right away. See the C<< $cb->add_custom_source >> method for user details. =cut sub write_custom_source_index { return shift->__write_custom_module_index( @_ ); } 1; =pod =head1 BUG REPORTS Please report bugs or other issues to E<lt>bug-cpanplus@rt.cpan.org<gt>. =head1 AUTHOR This module by Jos Boumans E<lt>kane@cpan.orgE<gt>. =head1 COPYRIGHT The CPAN++ interface (of which this module is a part of) is copyright (c) 2001 - 2007, Jos Boumans E<lt>kane@cpan.orgE<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::Configure>, L<CPANPLUS::Module>, L<CPANPLUS::Module::Author>, L<CPANPLUS::Selfupdate> =cut # Local variables: # c-indentation-style: bsd # c-basic-offset: 4 # indent-tabs-mode: nil # End: # vim: expandtab shiftwidth=4: __END__ todo: sub dist { # not sure about this one -- probably already done enough in Module.pm sub reports { # in Module.pm, wrapper here
