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- package CPANPLUS::Dist;
-
- use strict;
-
-
- use CPANPLUS::Error;
- use CPANPLUS::Internals::Constants;
-
- use Params::Check qw[check];
- use Module::Load::Conditional qw[can_load check_install];
- use Locale::Maketext::Simple Class => 'CPANPLUS', Style => 'gettext';
- use Object::Accessor;
-
- local $Params::Check::VERBOSE = 1;
-
- my @methods = qw[status parent];
- for my $key ( @methods ) {
- no strict 'refs';
- *{__PACKAGE__."::$key"} = sub {
- my $self = shift;
- $self->{$key} = $_[0] if @_;
- return $self->{$key};
- }
- }
-
- =pod
-
- =head1 NAME
-
- CPANPLUS::Dist
-
- =head1 SYNOPSIS
-
- my $dist = CPANPLUS::Dist->new(
- format => 'build',
- module => $modobj,
- );
-
- =head1 DESCRIPTION
-
- C<CPANPLUS::Dist> is a base class for C<CPANPLUS::Dist::MM>
- and C<CPANPLUS::Dist::Build>. Developers of other C<CPANPLUS::Dist::*>
- plugins should look at C<CPANPLUS::Dist::Base>.
-
- =head1 ACCESSORS
-
- =over 4
-
- =item parent()
-
- Returns the C<CPANPLUS::Module> object that parented this object.
-
- =item status()
-
- Returns the C<Object::Accessor> object that keeps the status for
- this module.
-
- =back
-
- =head1 STATUS ACCESSORS
-
- All accessors can be accessed as follows:
- $deb->status->ACCESSOR
-
- =over 4
-
- =item created()
-
- Boolean indicating whether the dist was created successfully.
- Explicitly set to C<0> when failed, so a value of C<undef> may be
- interpreted as C<not yet attempted>.
-
- =item installed()
-
- Boolean indicating whether the dist was installed successfully.
- Explicitly set to C<0> when failed, so a value of C<undef> may be
- interpreted as C<not yet attempted>.
-
- =item uninstalled()
-
- Boolean indicating whether the dist was uninstalled successfully.
- Explicitly set to C<0> when failed, so a value of C<undef> may be
- interpreted as C<not yet attempted>.
-
- =item dist()
-
- The location of the final distribution. This may be a file or
- directory, depending on how your distribution plug in of choice
- works. This will be set upon a successful create.
-
- =cut
-
- =back
-
- =head2 $dist = CPANPLUS::Dist->new( module => MODOBJ, [format => DIST_TYPE] );
-
- Create a new C<CPANPLUS::Dist> object based on the provided C<MODOBJ>.
- The optional argument C<format> is used to indicate what type of dist
- you would like to create (like C<makemaker> for a C<CPANPLUS::Dist::MM>
- object, C<build> for a C<CPANPLUS::Dist::Build> object, and so on ).
- If not provided, will default to the setting as specified by your
- config C<dist_type>.
-
- Returns a C<CPANPLUS::Dist> object on success and false on failure.
-
- =cut
-
- sub new {
- my $self = shift;
- my %hash = @_;
-
- local $Params::Check::ALLOW_UNKNOWN = 1;
-
- ### first verify we got a module object ###
- my $mod;
- my $tmpl = {
- module => { required => 1, allow => IS_MODOBJ, store => \$mod },
- };
- check( $tmpl, \%hash ) or return;
-
- ### get the conf object ###
- my $conf = $mod->parent->configure_object();
-
- ### figure out what type of dist object to create ###
- my $format;
- my $tmpl2 = {
- format => { default => $conf->get_conf('dist_type'),
- allow => [ __PACKAGE__->dist_types ],
- store => \$format },
- };
- check( $tmpl2, \%hash ) or return;
-
-
- unless( can_load( modules => { $format => '0.0' }, verbose => 1 ) ) {
- error(loc("'%1' not found -- you need '%2' version '%3' or higher ".
- "to detect plugins", $format, 'Module::Pluggable','2.4'));
- return;
- }
-
- ### bless the object in the child class ###
- my $obj = bless { parent => $mod }, $format;
-
- ### check if the format is available in this environment ###
- if( $conf->_get_build('sanity_check') and not $obj->format_available ) {
- error( loc( "Format '%1' is not available",$format) );
- return;
- }
-
- ### create a status object ###
- { my $acc = Object::Accessor->new;
- $obj->status($acc);
-
- ### add minimum supported accessors
- $acc->mk_accessors( qw[prepared created installed uninstalled
- distdir dist] );
- }
-
- ### now initialize it or admit failure
- unless( $obj->init ) {
- error(loc("Dist initialization of '%1' failed for '%2'",
- $format, $mod->module));
- return;
- }
-
- ### return the object
- return $obj;
- }
-
- =head2 @dists = CPANPLUS::Dist->dist_types;
-
- Returns a list of the CPANPLUS::Dist::* classes available
-
- =cut
-
- ### returns a list of dist_types we support
- ### will get overridden by Module::Pluggable if loaded
- ### XXX add support for 'plugin' dir in config as well
- { my $Loaded;
- my @Dists = (INSTALLER_MM);
- my @Ignore = ();
-
- ### backdoor method to add more dist types
- sub _add_dist_types { my $self = shift; push @Dists, @_ };
-
- ### backdoor method to exclude dist types
- sub _ignore_dist_types { my $self = shift; push @Ignore, @_ };
-
- ### locally add the plugins dir to @INC, so we can find extra plugins
- #local @INC = @INC, File::Spec->catdir(
- # $conf->get_conf('base'),
- # $conf->_get_build('plugins') );
-
- ### load any possible plugins
- sub dist_types {
-
- if ( !$Loaded++ and check_install( module => 'Module::Pluggable',
- version => '2.4')
- ) {
- require Module::Pluggable;
-
- my $only_re = __PACKAGE__ . '::\w+$';
-
- Module::Pluggable->import(
- sub_name => '_dist_types',
- search_path => __PACKAGE__,
- only => qr/$only_re/,
- except => [ INSTALLER_MM,
- INSTALLER_SAMPLE,
- INSTALLER_BASE,
- ]
- );
- my %ignore = map { $_ => $_ } @Ignore;
-
- push @Dists, grep { not $ignore{$_} } __PACKAGE__->_dist_types;
- }
-
- return @Dists;
- }
- }
-
- =head2 prereq_satisfied( modobj => $modobj, version => $version_spec )
-
- Returns true if this prereq is satisfied. Returns false if it's not.
- Also issues an error if it seems "unsatisfiable," i.e. if it can't be
- found on CPAN or the latest CPAN version doesn't satisfy it.
-
- =cut
-
- sub prereq_satisfied {
- my $dist = shift;
- my $cb = $dist->parent->parent;
- my %hash = @_;
-
- my($mod,$ver);
- my $tmpl = {
- version => { required => 1, store => \$ver },
- modobj => { required => 1, store => \$mod, allow => IS_MODOBJ },
- };
-
- check( $tmpl, \%hash ) or return;
-
- return 1 if $mod->is_uptodate( version => $ver );
-
- if ( $cb->_vcmp( $ver, $mod->version ) > 0 ) {
-
- error(loc(
- "This distribution depends on %1, but the latest version".
- " of %2 on CPAN (%3) doesn't satisfy the specific version".
- " dependency (%4). You may have to resolve this dependency ".
- "manually.",
- $mod->module, $mod->module, $mod->version, $ver ));
-
- }
-
- return;
- }
-
- =head2 _resolve_prereqs
-
- Makes sure prerequisites are resolved
-
- XXX Need docs, internal use only
-
- =cut
-
- sub _resolve_prereqs {
- my $dist = shift;
- my $self = $dist->parent;
- my $cb = $self->parent;
- my $conf = $cb->configure_object;
- my %hash = @_;
-
- my ($prereqs, $format, $verbose, $target, $force, $prereq_build);
- my $tmpl = {
- ### XXX perhaps this should not be required, since it may not be
- ### packaged, just installed...
- ### Let it be empty as well -- that means the $modobj->install
- ### routine will figure it out, which is fine if we didn't have any
- ### very specific wishes (it will even detect the favourite
- ### dist_type).
- format => { required => 1, store => \$format,
- allow => ['',__PACKAGE__->dist_types], },
- prereqs => { required => 1, default => { },
- strict_type => 1, store => \$prereqs },
- verbose => { default => $conf->get_conf('verbose'),
- store => \$verbose },
- force => { default => $conf->get_conf('force'),
- store => \$force },
- ### make sure allow matches with $mod->install's list
- target => { default => '', store => \$target,
- allow => ['',qw[create ignore install]] },
- prereq_build => { default => 0, store => \$prereq_build },
- };
-
- check( $tmpl, \%hash ) or return;
-
- ### so there are no prereqs? then don't even bother
- return 1 unless keys %$prereqs;
-
- ### so you didn't provide an explicit target.
- ### maybe your config can tell us what to do.
- $target ||= {
- PREREQ_ASK, TARGET_INSTALL, # we'll bail out if the user says no
- PREREQ_BUILD, TARGET_CREATE,
- PREREQ_IGNORE, TARGET_IGNORE,
- PREREQ_INSTALL, TARGET_INSTALL,
- }->{ $conf->get_conf('prereqs') } || '';
-
- ### XXX BIG NASTY HACK XXX FIXME at some point.
- ### when installing Bundle::CPANPLUS::Dependencies, we want to
- ### install all packages matching 'cpanplus' to be installed last,
- ### as all CPANPLUS' prereqs are being installed as well, but are
- ### being loaded for bootstrapping purposes. This means CPANPLUS
- ### can find them, but for example cpanplus::dist::build won't,
- ### which gets messy FAST. So, here we sort our prereqs only IF
- ### the parent module is Bundle::CPANPLUS::Dependencies.
- ### Really, we would wnat some sort of sorted prereq mechanism,
- ### but Bundle:: doesn't support it, and we flatten everything
- ### to a hash internally. A sorted hash *might* do the trick if
- ### we got a transparent implementation.. that would mean we would
- ### just have to remove the 'sort' here, and all will be well
- my @sorted_prereqs;
-
- ### use regex, could either be a module name, or a package name
- if( $self->module =~ /^Bundle(::|-)CPANPLUS(::|-)Dependencies/ ) {
- my (@first, @last);
- for my $mod ( sort keys %$prereqs ) {
- $mod =~ /CPANPLUS/
- ? push @last, $mod
- : push @first, $mod;
- }
- @sorted_prereqs = (@first, @last);
- } else {
- @sorted_prereqs = sort keys %$prereqs;
- }
-
- ### first, transfer this key/value pairing into a
- ### list of module objects + desired versions
- my @install_me;
-
- for my $mod ( @sorted_prereqs ) {
- my $version = $prereqs->{$mod};
- my $modobj = $cb->module_tree($mod);
-
- #### XXX we ignore the version, and just assume that the latest
- #### version from cpan will meet your requirements... dodgy =/
- unless( $modobj ) {
- error( loc( "No such module '%1' found on CPAN", $mod ) );
- next;
- }
-
- ### it's not uptodate, we need to install it
- if( !$dist->prereq_satisfied(modobj => $modobj, version => $version)) {
- msg(loc("Module '%1' requires '%2' version '%3' to be installed ",
- $self->module, $modobj->module, $version), $verbose );
-
- push @install_me, [$modobj, $version];
-
- ### it's not an MM or Build format, that means it's a package
- ### manager... we'll need to install it as well, via the PM
- } elsif ( INSTALL_VIA_PACKAGE_MANAGER->($format) and
- !$modobj->package_is_perl_core and
- ($target ne TARGET_IGNORE)
- ) {
- msg(loc("Module '%1' depends on '%2', may need to build a '%3' ".
- "package for it as well", $self->module, $modobj->module,
- $format));
- push @install_me, [$modobj, $version];
- }
- }
-
-
-
- ### so you just want to ignore prereqs? ###
- if( $target eq TARGET_IGNORE ) {
-
- ### but you have modules you need to install
- if( @install_me ) {
- msg(loc("Ignoring prereqs, this may mean your install will fail"),
- $verbose);
- msg(loc("'%1' listed the following dependencies:", $self->module),
- $verbose);
-
- for my $aref (@install_me) {
- my ($mod,$version) = @$aref;
-
- my $str = sprintf "\t%-35s %8s\n", $mod->module, $version;
- msg($str,$verbose);
- }
-
- return;
-
- ### ok, no problem, you have all needed prereqs anyway
- } else {
- return 1;
- }
- }
-
- my $flag;
- for my $aref (@install_me) {
- my($modobj,$version) = @$aref;
-
- ### another prereq may have already installed this one...
- ### so dont ask again if the module turns out to be uptodate
- ### see bug [#11840]
- ### if either force or prereq_build are given, the prereq
- ### should be built anyway
- next if (!$force and !$prereq_build) &&
- $dist->prereq_satisfied(modobj => $modobj, version => $version);
-
- ### either we're told to ignore the prereq,
- ### or the user wants us to ask him
- if( ( $conf->get_conf('prereqs') == PREREQ_ASK and not
- $cb->_callbacks->install_prerequisite->($self, $modobj)
- )
- ) {
- msg(loc("Will not install prerequisite '%1' -- Note " .
- "that the overall install may fail due to this",
- $modobj->module), $verbose);
- next;
- }
-
- ### value set and false -- means failure ###
- if( defined $modobj->status->installed
- && !$modobj->status->installed
- ) {
- error( loc( "Prerequisite '%1' failed to install before in " .
- "this session", $modobj->module ) );
- $flag++;
- last;
- }
-
- ### part of core?
- if( $modobj->package_is_perl_core ) {
- error(loc("Prerequisite '%1' is perl-core (%2) -- not ".
- "installing that. Aborting install",
- $modobj->module, $modobj->package ) );
- $flag++;
- last;
- }
-
- ### circular dependency code ###
- my $pending = $cb->_status->pending_prereqs || {};
-
- ### recursive dependency ###
- if ( $pending->{ $modobj->module } ) {
- error( loc( "Recursive dependency detected (%1) -- skipping",
- $modobj->module ) );
- next;
- }
-
- ### register this dependency as pending ###
- $pending->{ $modobj->module } = $modobj;
- $cb->_status->pending_prereqs( $pending );
-
-
- ### call $modobj->install rather than doing
- ### CPANPLUS::Dist->new and the like ourselves,
- ### since ->install will take care of fetch &&
- ### extract as well
- my $pa = $dist->status->_prepare_args || {};
- my $ca = $dist->status->_create_args || {};
- my $ia = $dist->status->_install_args || {};
-
- unless( $modobj->install( %$pa, %$ca, %$ia,
- force => $force,
- verbose => $verbose,
- format => $format,
- target => $target )
- ) {
- error(loc("Failed to install '%1' as prerequisite " .
- "for '%2'", $modobj->module, $self->module ) );
- $flag++;
- }
-
- ### unregister the pending dependency ###
- $pending->{ $modobj->module } = 0;
- $cb->_status->pending_prereqs( $pending );
-
- last if $flag;
-
- ### don't want us to install? ###
- if( $target ne TARGET_INSTALL ) {
- my $dir = $modobj->status->extract
- or error(loc("No extraction dir for '%1' found ".
- "-- weird", $modobj->module));
-
- $modobj->add_to_includepath();
-
- next;
- }
- }
-
- ### reset the $prereqs iterator, in case we bailed out early ###
- keys %$prereqs;
-
- return 1 unless $flag;
- return;
- }
-
- 1;
-
- # Local variables:
- # c-indentation-style: bsd
- # c-basic-offset: 4
- # indent-tabs-mode: nil
- # End:
- # vim: expandtab shiftwidth=4:
-