/usr/share/perl5/Module/CPANfile/Environment.pm is in libmodule-cpanfile-perl 1.1002-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 | package Module::CPANfile::Environment;
use strict;
use warnings;
use Module::CPANfile::Prereqs;
use Carp ();
my @bindings = qw(
on requires recommends suggests conflicts
feature
osname
mirror
configure_requires build_requires test_requires author_requires
);
my $file_id = 1;
sub new {
my($class, $file) = @_;
bless {
file => $file,
phase => 'runtime', # default phase
feature => undef,
features => {},
prereqs => Module::CPANfile::Prereqs->new,
mirrors => [],
}, $class;
}
sub bind {
my $self = shift;
my $pkg = caller;
for my $binding (@bindings) {
no strict 'refs';
*{"$pkg\::$binding"} = sub { $self->$binding(@_) };
}
}
sub parse {
my($self, $code) = @_;
my $err;
{
local $@;
$file_id++;
$self->_evaluate(<<EVAL);
package Module::CPANfile::Sandbox$file_id;
no warnings;
BEGIN { \$_environment->bind }
# line 1 "$self->{file}"
$code;
EVAL
$err = $@;
}
if ($err) { die "Parsing $self->{file} failed: $err" };
return 1;
}
sub _evaluate {
my $_environment = $_[0];
eval $_[1];
}
sub prereqs { $_[0]->{prereqs} }
sub mirrors { $_[0]->{mirrors} }
# DSL goes from here
sub on {
my($self, $phase, $code) = @_;
local $self->{phase} = $phase;
$code->();
}
sub feature {
my($self, $identifier, $description, $code) = @_;
# shortcut: feature identifier => sub { ... }
if (@_ == 3 && ref($description) eq 'CODE') {
$code = $description;
$description = $identifier;
}
unless (ref $description eq '' && ref $code eq 'CODE') {
Carp::croak("Usage: feature 'identifier', 'Description' => sub { ... }");
}
local $self->{feature} = $identifier;
$self->prereqs->add_feature($identifier, $description);
$code->();
}
sub osname { die "TODO" }
sub mirror {
my($self, $url) = @_;
push @{$self->{mirrors}}, $url;
}
sub requirement_for {
my($self, $module, @args) = @_;
my $requirement = 0;
$requirement = shift @args if @args % 2;
return Module::CPANfile::Requirement->new(
name => $module,
version => $requirement,
@args,
);
}
sub requires {
my $self = shift;
$self->add_prereq(requires => @_);
}
sub recommends {
my $self = shift;
$self->add_prereq(recommends => @_);
}
sub suggests {
my $self = shift;
$self->add_prereq(suggests => @_);
}
sub conflicts {
my $self = shift;
$self->add_prereq(conflicts => @_);
}
sub add_prereq {
my($self, $type, $module, @args) = @_;
$self->prereqs->add_prereq(
feature => $self->{feature},
phase => $self->{phase},
type => $type,
module => $module,
requirement => $self->requirement_for($module, @args),
);
}
# Module::Install compatible shortcuts
sub configure_requires {
my($self, @args) = @_;
$self->on(configure => sub { $self->requires(@args) });
}
sub build_requires {
my($self, @args) = @_;
$self->on(build => sub { $self->requires(@args) });
}
sub test_requires {
my($self, @args) = @_;
$self->on(test => sub { $self->requires(@args) });
}
sub author_requires {
my($self, @args) = @_;
$self->on(develop => sub { $self->requires(@args) });
}
1;
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