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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙuse 5.006; use strict; use warnings; package CPAN::Meta::Prereqs; our $VERSION = '2.150010'; #pod =head1 DESCRIPTION #pod #pod A CPAN::Meta::Prereqs object represents the prerequisites for a CPAN #pod distribution or one of its optional features. Each set of prereqs is #pod organized by phase and type, as described in L. #pod #pod =cut use Carp qw(confess); use Scalar::Util qw(blessed); use CPAN::Meta::Requirements 2.121; #pod =method new #pod #pod my $prereq = CPAN::Meta::Prereqs->new( \%prereq_spec ); #pod #pod This method returns a new set of Prereqs. The input should look like the #pod contents of the C field described in L, meaning #pod something more or less like this: #pod #pod my $prereq = CPAN::Meta::Prereqs->new({ #pod runtime => { #pod requires => { #pod 'Some::Module' => '1.234', #pod ..., #pod }, #pod ..., #pod }, #pod ..., #pod }); #pod #pod You can also construct an empty set of prereqs with: #pod #pod my $prereqs = CPAN::Meta::Prereqs->new; #pod #pod This empty set of prereqs is useful for accumulating new prereqs before finally #pod dumping the whole set into a structure or string. #pod #pod =cut # note we also accept anything matching /\Ax_/i sub __legal_phases { qw(configure build test runtime develop) } sub __legal_types { qw(requires recommends suggests conflicts) } # expect a prereq spec from META.json -- rjbs, 2010-04-11 sub new { my ($class, $prereq_spec) = @_; $prereq_spec ||= {}; my %is_legal_phase = map {; $_ => 1 } $class->__legal_phases; my %is_legal_type = map {; $_ => 1 } $class->__legal_types; my %guts; PHASE: for my $phase (keys %$prereq_spec) { next PHASE unless $phase =~ /\Ax_/i or $is_legal_phase{$phase}; my $phase_spec = $prereq_spec->{ $phase }; next PHASE unless keys %$phase_spec; TYPE: for my $type (keys %$phase_spec) { next TYPE unless $type =~ /\Ax_/i or $is_legal_type{$type}; my $spec = $phase_spec->{ $type }; next TYPE unless keys %$spec; $guts{prereqs}{$phase}{$type} = CPAN::Meta::Requirements->from_string_hash( $spec ); } } return bless \%guts => $class; } #pod =method requirements_for #pod #pod my $requirements = $prereqs->requirements_for( $phase, $type ); #pod #pod This method returns a L object for the given #pod phase/type combination. If no prerequisites are registered for that #pod combination, a new CPAN::Meta::Requirements object will be returned, and it may #pod be added to as needed. #pod #pod If C<$phase> or C<$type> are undefined or otherwise invalid, an exception will #pod be raised. #pod #pod =cut sub requirements_for { my ($self, $phase, $type) = @_; confess "requirements_for called without phase" unless defined $phase; confess "requirements_for called without type" unless defined $type; unless ($phase =~ /\Ax_/i or grep { $phase eq $_ } $self->__legal_phases) { confess "requested requirements for unknown phase: $phase"; } unless ($type =~ /\Ax_/i or grep { $type eq $_ } $self->__legal_types) { confess "requested requirements for unknown type: $type"; } my $req = ($self->{prereqs}{$phase}{$type} ||= CPAN::Meta::Requirements->new); $req->finalize if $self->is_finalized; return $req; } #pod =method phases #pod #pod my @phases = $prereqs->phases; #pod #pod This method returns the list of all phases currently populated in the prereqs #pod object, suitable for iterating. #pod #pod =cut sub phases { my ($self) = @_; my %is_legal_phase = map {; $_ => 1 } $self->__legal_phases; grep { /\Ax_/i or $is_legal_phase{$_} } keys %{ $self->{prereqs} }; } #pod =method types_in #pod #pod my @runtime_types = $prereqs->types_in('runtime'); #pod #pod This method returns the list of all types currently populated in the prereqs #pod object for the provided phase, suitable for iterating. #pod #pod =cut sub types_in { my ($self, $phase) = @_; return unless $phase =~ /\Ax_/i or grep { $phase eq $_ } $self->__legal_phases; my %is_legal_type = map {; $_ => 1 } $self->__legal_types; grep { /\Ax_/i or $is_legal_type{$_} } keys %{ $self->{prereqs}{$phase} }; } #pod =method with_merged_prereqs #pod #pod my $new_prereqs = $prereqs->with_merged_prereqs( $other_prereqs ); #pod #pod my $new_prereqs = $prereqs->with_merged_prereqs( \@other_prereqs ); #pod #pod This method returns a new CPAN::Meta::Prereqs objects in which all the #pod other prerequisites given are merged into the current set. This is primarily #pod provided for combining a distribution's core prereqs with the prereqs of one of #pod its optional features. #pod #pod The new prereqs object has no ties to the originals, and altering it further #pod will not alter them. #pod #pod =cut sub with_merged_prereqs { my ($self, $other) = @_; my @other = blessed($other) ? $other : @$other; my @prereq_objs = ($self, @other); my %new_arg; for my $phase (__uniq(map { $_->phases } @prereq_objs)) { for my $type (__uniq(map { $_->types_in($phase) } @prereq_objs)) { my $req = CPAN::Meta::Requirements->new; for my $prereq (@prereq_objs) { my $this_req = $prereq->requirements_for($phase, $type); next unless $this_req->required_modules; $req->add_requirements($this_req); } next unless $req->required_modules; $new_arg{ $phase }{ $type } = $req->as_string_hash; } } return (ref $self)->new(\%new_arg); } #pod =method merged_requirements #pod #pod my $new_reqs = $prereqs->merged_requirements( \@phases, \@types ); #pod my $new_reqs = $prereqs->merged_requirements( \@phases ); #pod my $new_reqs = $prereqs->merged_requirements(); #pod #pod This method joins together all requirements across a number of phases #pod and types into a new L object. If arguments #pod are omitted, it defaults to "runtime", "build" and "test" for phases #pod and "requires" and "recommends" for types. #pod #pod =cut sub merged_requirements { my ($self, $phases, $types) = @_; $phases = [qw/runtime build test/] unless defined $phases; $types = [qw/requires recommends/] unless defined $types; confess "merged_requirements phases argument must be an arrayref" unless ref $phases eq 'ARRAY'; confess "merged_requirements types argument must be an arrayref" unless ref $types eq 'ARRAY'; my $req = CPAN::Meta::Requirements->new; for my $phase ( @$phases ) { unless ($phase =~ /\Ax_/i or grep { $phase eq $_ } $self->__legal_phases) { confess "requested requirements for unknown phase: $phase"; } for my $type ( @$types ) { unless ($type =~ /\Ax_/i or grep { $type eq $_ } $self->__legal_types) { confess "requested requirements for unknown type: $type"; } $req->add_requirements( $self->requirements_for($phase, $type) ); } } $req->finalize if $self->is_finalized; return $req; } #pod =method as_string_hash #pod #pod This method returns a hashref containing structures suitable for dumping into a #pod distmeta data structure. It is made up of hashes and strings, only; there will #pod be no Prereqs, CPAN::Meta::Requirements, or C objects inside it. #pod #pod =cut sub as_string_hash { my ($self) = @_; my %hash; for my $phase ($self->phases) { for my $type ($self->types_in($phase)) { my $req = $self->requirements_for($phase, $type); next unless $req->required_modules; $hash{ $phase }{ $type } = $req->as_string_hash; } } return \%hash; } #pod =method is_finalized #pod #pod This method returns true if the set of prereqs has been marked "finalized," and #pod cannot be altered. #pod #pod =cut sub is_finalized { $_[0]{finalized} } #pod =method finalize #pod #pod Calling C on a Prereqs object will close it for further modification. #pod Attempting to make any changes that would actually alter the prereqs will #pod result in an exception being thrown. #pod #pod =cut sub finalize { my ($self) = @_; $self->{finalized} = 1; for my $phase (keys %{ $self->{prereqs} }) { $_->finalize for values %{ $self->{prereqs}{$phase} }; } } #pod =method clone #pod #pod my $cloned_prereqs = $prereqs->clone; #pod #pod This method returns a Prereqs object that is identical to the original object, #pod but can be altered without affecting the original object. Finalization does #pod not survive cloning, meaning that you may clone a finalized set of prereqs and #pod then modify the clone. #pod #pod =cut sub clone { my ($self) = @_; my $clone = (ref $self)->new( $self->as_string_hash ); } sub __uniq { my (%s, $u); grep { defined($_) ? !$s{$_}++ : !$u++ } @_; } 1; # ABSTRACT: a set of distribution prerequisites by phase and type =pod =encoding UTF-8 =head1 NAME CPAN::Meta::Prereqs - a set of distribution prerequisites by phase and type =head1 VERSION version 2.150010 =head1 DESCRIPTION A CPAN::Meta::Prereqs object represents the prerequisites for a CPAN distribution or one of its optional features. Each set of prereqs is organized by phase and type, as described in L. =head1 METHODS =head2 new my $prereq = CPAN::Meta::Prereqs->new( \%prereq_spec ); This method returns a new set of Prereqs. The input should look like the contents of the C field described in L, meaning something more or less like this: my $prereq = CPAN::Meta::Prereqs->new({ runtime => { requires => { 'Some::Module' => '1.234', ..., }, ..., }, ..., }); You can also construct an empty set of prereqs with: my $prereqs = CPAN::Meta::Prereqs->new; This empty set of prereqs is useful for accumulating new prereqs before finally dumping the whole set into a structure or string. =head2 requirements_for my $requirements = $prereqs->requirements_for( $phase, $type ); This method returns a L object for the given phase/type combination. If no prerequisites are registered for that combination, a new CPAN::Meta::Requirements object will be returned, and it may be added to as needed. If C<$phase> or C<$type> are undefined or otherwise invalid, an exception will be raised. =head2 phases my @phases = $prereqs->phases; This method returns the list of all phases currently populated in the prereqs object, suitable for iterating. =head2 types_in my @runtime_types = $prereqs->types_in('runtime'); This method returns the list of all types currently populated in the prereqs object for the provided phase, suitable for iterating. =head2 with_merged_prereqs my $new_prereqs = $prereqs->with_merged_prereqs( $other_prereqs ); my $new_prereqs = $prereqs->with_merged_prereqs( \@other_prereqs ); This method returns a new CPAN::Meta::Prereqs objects in which all the other prerequisites given are merged into the current set. This is primarily provided for combining a distribution's core prereqs with the prereqs of one of its optional features. The new prereqs object has no ties to the originals, and altering it further will not alter them. =head2 merged_requirements my $new_reqs = $prereqs->merged_requirements( \@phases, \@types ); my $new_reqs = $prereqs->merged_requirements( \@phases ); my $new_reqs = $prereqs->merged_requirements(); This method joins together all requirements across a number of phases and types into a new L object. If arguments are omitted, it defaults to "runtime", "build" and "test" for phases and "requires" and "recommends" for types. =head2 as_string_hash This method returns a hashref containing structures suitable for dumping into a distmeta data structure. It is made up of hashes and strings, only; there will be no Prereqs, CPAN::Meta::Requirements, or C objects inside it. =head2 is_finalized This method returns true if the set of prereqs has been marked "finalized," and cannot be altered. =head2 finalize Calling C on a Prereqs object will close it for further modification. Attempting to make any changes that would actually alter the prereqs will result in an exception being thrown. =head2 clone my $cloned_prereqs = $prereqs->clone; This method returns a Prereqs object that is identical to the original object, but can be altered without affecting the original object. Finalization does not survive cloning, meaning that you may clone a finalized set of prereqs and then modify the clone. =head1 BUGS Please report any bugs or feature using the CPAN Request Tracker. Bugs can be submitted through the web interface at L When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature. =head1 AUTHORS =over 4 =item * David Golden =item * Ricardo Signes =item * Adam Kennedy =back =head1 COPYRIGHT AND LICENSE This software is copyright (c) 2010 by David Golden, Ricardo Signes, Adam Kennedy and Contributors. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. =cut __END__ # vim: ts=2 sts=2 sw=2 et :