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package Net::OpenSSH::ModuleLoader;
use strict;
use warnings;
use Carp;
our %loaded_module;
use Exporter qw(import);
our @EXPORT = qw(_load_module);
sub _load_module {
my ($module, $version) = @_;
$loaded_module{$module} ||= do {
my $err;
do {
local ($@, $SIG{__DIE__});
my $ok = eval "require $module; 1";
$err = $@;
$ok;
} or croak "unable to load Perl module $module: $err";
};
if (defined $version) {
my $mv = do {
local ($@, $SIG{__DIE__});
eval "\$${module}::VERSION";
} || 0;
(my $mv1 = $mv) =~ s/_\d*$//;
croak "$module version $version required, $mv is available"
if $mv1 < $version;
}
1
}
1;
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