/
Install.pm
172 lines (125 loc) · 3.87 KB
/
Install.pm
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#line 1 "inc/Module/Install.pm - /Library/Perl/5.8.1/Module/Install.pm"
# $File: //depot/cpan/Module-Install/lib/Module/Install.pm $ $Author: autrijus $
# $Revision: #69 $ $Change: 2301 $ $DateTime: 2004/07/13 07:16:40 $ vim: expandtab shiftwidth=4
package Module::Install;
$VERSION = '0.35';
die << "." unless $INC{join('/', inc => split(/::/, __PACKAGE__)).'.pm'};
Please invoke ${\__PACKAGE__} with:
use inc::${\__PACKAGE__};
not:
use ${\__PACKAGE__};
.
use strict 'vars';
use Cwd ();
use File::Find ();
use File::Path ();
@inc::Module::Install::ISA = 'Module::Install';
*inc::Module::Install::VERSION = *VERSION;
#line 132
sub import {
my $class = shift;
my $self = $class->new(@_);
if (not -f $self->{file}) {
require "$self->{path}/$self->{dispatch}.pm";
File::Path::mkpath("$self->{prefix}/$self->{author}");
$self->{admin} =
"$self->{name}::$self->{dispatch}"->new(_top => $self);
$self->{admin}->init;
@_ = ($class, _self => $self);
goto &{"$self->{name}::import"};
}
*{caller(0) . "::AUTOLOAD"} = $self->autoload;
# Unregister loader and worker packages so subdirs can use them again
delete $INC{"$self->{file}"};
delete $INC{"$self->{path}.pm"};
}
#line 159
sub autoload {
my $self = shift;
my $caller = caller;
my $cwd = Cwd::cwd();
my $sym = "$caller\::AUTOLOAD";
$sym->{$cwd} = sub {
my $pwd = Cwd::cwd();
if (my $code = $sym->{$pwd}) {
goto &$code unless $cwd eq $pwd; # delegate back to parent dirs
}
$$sym =~ /([^:]+)$/ or die "Cannot autoload $caller";
unshift @_, ($self, $1);
goto &{$self->can('call')} unless uc($1) eq $1;
};
}
#line 184
sub new {
my ($class, %args) = @_;
return $args{_self} if $args{_self};
$args{dispatch} ||= 'Admin';
$args{prefix} ||= 'inc';
$args{author} ||= '.author';
$args{bundle} ||= 'inc/BUNDLES';
$class =~ s/^\Q$args{prefix}\E:://;
$args{name} ||= $class;
$args{version} ||= $class->VERSION;
unless ($args{path}) {
$args{path} = $args{name};
$args{path} =~ s!::!/!g;
}
$args{file} ||= "$args{prefix}/$args{path}.pm";
bless(\%args, $class);
}
#line 213
sub call {
my $self = shift;
my $method = shift;
my $obj = $self->load($method) or return;
unshift @_, $obj;
goto &{$obj->can($method)};
}
#line 228
sub load {
my ($self, $method) = @_;
$self->load_extensions(
"$self->{prefix}/$self->{path}", $self
) unless $self->{extensions};
foreach my $obj (@{$self->{extensions}}) {
return $obj if $obj->can($method);
}
my $admin = $self->{admin} or die << "END";
The '$method' method does not exist in the '$self->{prefix}' path!
Please remove the '$self->{prefix}' directory and run $0 again to load it.
END
my $obj = $admin->load($method, 1);
push @{$self->{extensions}}, $obj;
$obj;
}
#line 258
sub load_extensions {
my ($self, $path, $top_obj) = @_;
unshift @INC, $self->{prefix}
unless grep { $_ eq $self->{prefix} } @INC;
local @INC = ($path, @INC);
foreach my $rv ($self->find_extensions($path)) {
my ($file, $pkg) = @{$rv};
next if $self->{pathnames}{$pkg};
eval { require $file; 1 } or (warn($@), next);
$self->{pathnames}{$pkg} = delete $INC{$file};
push @{$self->{extensions}}, $pkg->new( _top => $top_obj );
}
}
#line 282
sub find_extensions {
my ($self, $path) = @_;
my @found;
File::Find::find(sub {
my $file = $File::Find::name;
return unless $file =~ m!^\Q$path\E/(.+)\.pm\Z!is;
return if $1 eq $self->{dispatch};
$file = "$self->{path}/$1.pm";
my $pkg = "$self->{name}::$1"; $pkg =~ s!/!::!g;
push @found, [$file, $pkg];
}, $path) if -d $path;
@found;
}
1;
__END__
#line 620