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- package CPANPLUS::Internals;
-
- ### we /need/ perl5.6.1 or higher -- we use coderefs in @INC,
- ### and 5.6.0 is just too buggy
- use 5.006001;
-
- use strict;
- use Config;
-
-
- use CPANPLUS::Error;
-
- use CPANPLUS::Selfupdate;
-
- use CPANPLUS::Internals::Source;
- use CPANPLUS::Internals::Extract;
- use CPANPLUS::Internals::Fetch;
- use CPANPLUS::Internals::Utils;
- use CPANPLUS::Internals::Constants;
- use CPANPLUS::Internals::Search;
- use CPANPLUS::Internals::Report;
-
- use Cwd qw[cwd];
- use Params::Check qw[check];
- use Locale::Maketext::Simple Class => 'CPANPLUS', Style => 'gettext';
-
- use Object::Accessor;
-
-
- local $Params::Check::VERBOSE = 1;
-
- use vars qw[@ISA $VERSION];
-
- @ISA = qw[
- CPANPLUS::Internals::Source
- CPANPLUS::Internals::Extract
- CPANPLUS::Internals::Fetch
- CPANPLUS::Internals::Utils
- CPANPLUS::Internals::Search
- CPANPLUS::Internals::Report
- ];
-
- $VERSION = "0.84";
-
- =pod
-
- =head1 NAME
-
- CPANPLUS::Internals
-
- =head1 SYNOPSIS
-
- my $internals = CPANPLUS::Internals->_init( _conf => $conf );
- my $backend = CPANPLUS::Internals->_retrieve_id( $ID );
-
- =head1 DESCRIPTION
-
- This module is the guts of CPANPLUS -- it inherits from all other
- modules in the CPANPLUS::Internals::* namespace, thus defying normal
- rules of OO programming -- but if you're reading this, you already
- know what's going on ;)
-
- Please read the C<CPANPLUS::Backend> documentation for the normal API.
-
- =head1 ACCESSORS
-
- =over 4
-
- =item _conf
-
- Get/set the configure object
-
- =item _id
-
- Get/set the id
-
- =item _lib
-
- Get/set the current @INC path -- @INC is reset to this after each
- install.
-
- =item _perl5lib
-
- Get/set the current PERL5LIB environment variable -- $ENV{PERL5LIB}
- is reset to this after each install.
-
- =cut
-
- ### autogenerate accessors ###
- for my $key ( qw[_conf _id _lib _perl5lib _modules _hosts _methods _status
- _callbacks _selfupdate]
- ) {
- no strict 'refs';
- *{__PACKAGE__."::$key"} = sub {
- $_[0]->{$key} = $_[1] if @_ > 1;
- return $_[0]->{$key};
- }
- }
-
- =pod
-
- =back
-
- =head1 METHODS
-
- =head2 $internals = CPANPLUS::Internals->_init( _conf => CONFIG_OBJ )
-
- C<_init> creates a new CPANPLUS::Internals object.
-
- You have to pass it a valid C<CPANPLUS::Configure> object.
-
- Returns the object on success, or dies on failure.
-
- =cut
- { ### NOTE:
- ### if extra callbacks are added, don't forget to update the
- ### 02-internals.t test script with them!
- my $callback_map = {
- ### name default value
- install_prerequisite => 1, # install prereqs when 'ask' is set?
- edit_test_report => 0, # edit the prepared test report?
- send_test_report => 1, # send the test report?
- # munge the test report
- munge_test_report => sub { return $_[1] },
- # filter out unwanted prereqs
- filter_prereqs => sub { return $_[1] },
- # continue if 'make test' fails?
- proceed_on_test_failure => sub { return 0 },
- munge_dist_metafile => sub { return $_[1] },
- };
-
- my $status = Object::Accessor->new;
- $status->mk_accessors(qw[pending_prereqs]);
-
- my $callback = Object::Accessor->new;
- $callback->mk_accessors(keys %$callback_map);
-
- my $conf;
- my $Tmpl = {
- _conf => { required => 1, store => \$conf,
- allow => IS_CONFOBJ },
- _id => { default => '', no_override => 1 },
- _lib => { default => [ @INC ], no_override => 1 },
- _perl5lib => { default => $ENV{'PERL5LIB'}, no_override => 1 },
- _authortree => { default => '', no_override => 1 },
- _modtree => { default => '', no_override => 1 },
- _hosts => { default => {}, no_override => 1 },
- _methods => { default => {}, no_override => 1 },
- _status => { default => '<empty>', no_override => 1 },
- _callbacks => { default => '<empty>', no_override => 1 },
- };
-
- sub _init {
- my $class = shift;
- my %hash = @_;
-
- ### temporary warning until we fix the storing of multiple id's
- ### and their serialization:
- ### probably not going to happen --kane
- if( my $id = $class->_last_id ) {
- # make it a singleton.
- warn loc(q[%1 currently only supports one %2 object per ] .
- qq[running program\n], 'CPANPLUS', $class);
-
- return $class->_retrieve_id( $id );
- }
-
- my $args = check($Tmpl, \%hash)
- or die loc(qq[Could not initialize '%1' object], $class);
-
- bless $args, $class;
-
- $args->{'_id'} = $args->_inc_id;
- $args->{'_status'} = $status;
- $args->{'_callbacks'} = $callback;
-
- ### initialize callbacks to default state ###
- for my $name ( $callback->ls_accessors ) {
- my $rv = ref $callback_map->{$name} ? 'sub return value' :
- $callback_map->{$name} ? 'true' : 'false';
-
- $args->_callbacks->$name(
- sub { msg(loc("DEFAULT '%1' HANDLER RETURNING '%2'",
- $name, $rv), $args->_conf->get_conf('debug'));
- return ref $callback_map->{$name}
- ? $callback_map->{$name}->( @_ )
- : $callback_map->{$name};
- }
- );
- }
-
- ### create a selfupdate object
- $args->_selfupdate( CPANPLUS::Selfupdate->new( $args ) );
-
- ### initalize it as an empty hashref ###
- $args->_status->pending_prereqs( {} );
-
- ### allow for dirs to be added to @INC at runtime,
- ### rather then compile time
- push @INC, @{$conf->get_conf('lib')};
-
- ### add any possible new dirs ###
- $args->_lib( [@INC] );
-
- $conf->_set_build( startdir => cwd() ),
- or error( loc("couldn't locate current dir!") );
-
- $ENV{FTP_PASSIVE} = 1, if $conf->get_conf('passive');
-
- my $id = $args->_store_id( $args );
-
- unless ( $id == $args->_id ) {
- error( loc("IDs do not match: %1 != %2. Storage failed!",
- $id, $args->_id) );
- }
-
- return $args;
- }
-
- =pod
-
- =head2 $bool = $internals->_flush( list => \@caches )
-
- Flushes the designated caches from the C<CPANPLUS> object.
-
- Returns true on success, false if one or more caches could not be
- be flushed.
-
- =cut
-
- sub _flush {
- my $self = shift;
- my %hash = @_;
-
- my $aref;
- my $tmpl = {
- list => { required => 1, default => [],
- strict_type => 1, store => \$aref },
- };
-
- my $args = check( $tmpl, \%hash ) or return;
-
- my $flag = 0;
- for my $what (@$aref) {
- my $cache = '_' . $what;
-
- ### set the include paths back to their original ###
- if( $what eq 'lib' ) {
- $ENV{PERL5LIB} = $self->_perl5lib || '';
- @INC = @{$self->_lib};
-
- ### give all modules a new status object -- this is slightly
- ### costly, but the best way to make sure all statusses are
- ### forgotten --kane
- } elsif ( $what eq 'modules' ) {
- for my $modobj ( values %{$self->module_tree} ) {
- $modobj->_flush;
- }
-
- ### blow away the methods cache... currently, that's only
- ### File::Fetch's method fail list
- } elsif ( $what eq 'methods' ) {
-
- ### still fucking p4 :( ###
- $File'Fetch::METHOD_FAIL = $File'Fetch::METHOD_FAIL = {};
-
- ### blow away the m::l::c cache, so modules can be (re)loaded
- ### again if they become available
- } elsif ( $what eq 'load' ) {
- undef $Module::Load::Conditional::CACHE;
-
- } else {
- unless ( exists $self->{$cache} && exists $Tmpl->{$cache} ) {
- error( loc( "No such cache: '%1'", $what ) );
- $flag++;
- next;
- } else {
- $self->$cache( {} );
- }
- }
- }
- return !$flag;
- }
-
- ### NOTE:
- ### if extra callbacks are added, don't forget to update the
- ### 02-internals.t test script with them!
-
- =pod
-
- =head2 $bool = $internals->_register_callback( name => CALLBACK_NAME, code => CODEREF );
-
- Registers a callback for later use by the internal libraries.
-
- Here is a list of the currently used callbacks:
-
- =over 4
-
- =item install_prerequisite
-
- Is called when the user wants to be C<asked> about what to do with
- prerequisites. Should return a boolean indicating true to install
- the prerequisite and false to skip it.
-
- =item send_test_report
-
- Is called when the user should be prompted if he wishes to send the
- test report. Should return a boolean indicating true to send the
- test report and false to skip it.
-
- =item munge_test_report
-
- Is called when the test report message has been composed, giving
- the user a chance to programatically alter it. Should return the
- (munged) message to be sent.
-
- =item edit_test_report
-
- Is called when the user should be prompted to edit test reports
- about to be sent out by Test::Reporter. Should return a boolean
- indicating true to edit the test report in an editor and false
- to skip it.
-
- =item proceed_on_test_failure
-
- Is called when 'make test' or 'Build test' fails. Should return
- a boolean indicating whether the install should continue even if
- the test failed.
-
- =item munge_dist_metafile
-
- Is called when the C<CPANPLUS::Dist::*> metafile is created, like
- C<control> for C<CPANPLUS::Dist::Deb>, giving the user a chance to
- programatically alter it. Should return the (munged) text to be
- written to the metafile.
-
- =back
-
- =cut
-
- sub _register_callback {
- my $self = shift or return;
- my %hash = @_;
-
- my ($name,$code);
- my $tmpl = {
- name => { required => 1, store => \$name,
- allow => [$callback->ls_accessors] },
- code => { required => 1, allow => IS_CODEREF,
- store => \$code },
- };
-
- check( $tmpl, \%hash ) or return;
-
- $self->_callbacks->$name( $code ) or return;
-
- return 1;
- }
-
- # =head2 $bool = $internals->_add_callback( name => CALLBACK_NAME, code => CODEREF );
- #
- # Adds a new callback to be used from anywhere in the system. If the callback
- # is already known, an error is raised and false is returned. If the callback
- # is not yet known, it is added, and the corresponding coderef is registered
- # using the
- #
- # =cut
- #
- # sub _add_callback {
- # my $self = shift or return;
- # my %hash = @_;
- #
- # my ($name,$code);
- # my $tmpl = {
- # name => { required => 1, store => \$name, },
- # code => { required => 1, allow => IS_CODEREF,
- # store => \$code },
- # };
- #
- # check( $tmpl, \%hash ) or return;
- #
- # if( $callback->can( $name ) ) {
- # error(loc("Callback '%1' is already registered"));
- # return;
- # }
- #
- # $callback->mk_accessor( $name );
- #
- # $self->_register_callback( name => $name, code => $code ) or return;
- #
- # return 1;
- # }
-
- }
-
- =pod
-
- =head2 $bool = $internals->_add_to_includepath( directories => \@dirs )
-
- Adds a list of directories to the include path.
- This means they get added to C<@INC> as well as C<$ENV{PERL5LIB}>.
-
- Returns true on success, false on failure.
-
- =cut
-
- sub _add_to_includepath {
- my $self = shift;
- my %hash = @_;
-
- my $dirs;
- my $tmpl = {
- directories => { required => 1, default => [], store => \$dirs,
- strict_type => 1 },
- };
-
- check( $tmpl, \%hash ) or return;
-
- for my $lib (@$dirs) {
- push @INC, $lib unless grep { $_ eq $lib } @INC;
- }
-
- { local $^W; ### it will be complaining if $ENV{PERL5LIB]
- ### is not defined (yet).
- $ENV{'PERL5LIB'} .= join '', map { $Config{'path_sep'} . $_ } @$dirs;
- }
-
- return 1;
- }
-
- =pod
-
- =head2 $id = CPANPLUS::Internals->_last_id
-
- Return the id of the last object stored.
-
- =head2 $id = CPANPLUS::Internals->_store_id( $internals )
-
- Store this object; return its id.
-
- =head2 $obj = CPANPLUS::Internals->_retrieve_id( $ID )
-
- Retrieve an object based on its ID -- return false on error.
-
- =head2 CPANPLUS::Internals->_remove_id( $ID )
-
- Remove the object marked by $ID from storage.
-
- =head2 @objs = CPANPLUS::Internals->_return_all_objects
-
- Return all stored objects.
-
- =cut
-
-
- ### code for storing multiple objects
- ### -- although we only support one right now
- ### XXX when support for multiple objects comes, saving source will have
- ### to change
- {
- my $idref = {};
- my $count = 0;
-
- sub _inc_id { return ++$count; }
-
- sub _last_id { $count }
-
- sub _store_id {
- my $self = shift;
- my $obj = shift or return;
-
- unless( IS_INTERNALS_OBJ->($obj) ) {
- error( loc("The object you passed has the wrong ref type: '%1'",
- ref $obj) );
- return;
- }
-
- $idref->{ $obj->_id } = $obj;
- return $obj->_id;
- }
-
- sub _retrieve_id {
- my $self = shift;
- my $id = shift or return;
-
- my $obj = $idref->{$id};
- return $obj;
- }
-
- sub _remove_id {
- my $self = shift;
- my $id = shift or return;
-
- return delete $idref->{$id};
- }
-
- sub _return_all_objects { return values %$idref }
- }
-
- 1;
-
- # Local variables:
- # c-indentation-style: bsd
- # c-basic-offset: 4
- # indent-tabs-mode: nil
- # End:
- # vim: expandtab shiftwidth=4:
-