/usr/share/perl5/Catmandu/Plugin/Readonly.pm is in libcatmandu-perl 1.0700-1.
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  | package Catmandu::Plugin::Readonly;
our $VERSION = '1.07';
use Moo::Role;
use MooX::Aliases;
use Package::Stash;
use namespace::clean;
sub BUILD {
    my ($self) = @_;
    my $name = ref($self->store);
    if ($self->store->does('Catmandu::Droppable')) {
        # Overwrite the drop method of the Catmandu::Store implementation
        my $stash = Package::Stash->new($name);
        $stash->add_symbol(
            '&drop' => sub {
                $self->log->warn("trying to drop a readonly store");
                my $err = Catmandu::NotImplemented->new("$name is readonly");
                return undef, $err;
            }
        );
    }
}
around add => sub {
    my ($orig, $self, $data) = @_;
    my $name = ref($self);
    $self->log->warn("trying to add to readonly store");
    my $err = Catmandu::NotImplemented->new("$name is readonly");
    return undef, $err;
};
around delete => sub {
    my ($orig, $self) = @_;
    my $name = ref($self);
    $self->log->warn("trying to delete from readonly store");
    my $err = Catmandu::NotImplemented->new("$name is readonly");
    return undef, $err;
};
around delete_all => sub {
    my ($orig, $self) = @_;
    my $name = ref($self);
    $self->log->warn("trying to delete_all on readonly store");
    my $err = Catmandu::NotImplemented->new("$name is readonly");
    return undef, $err;
};
around drop => sub {
    my ($orig, $self) = @_;
    my $name = ref($self);
    $self->log->warn("trying to drop a readonly store");
    my $err = Catmandu::NotImplemented->new("$name is readonly");
    return undef, $err;
};
1;
__END__
=pod
=head1 NAME
Catmandu::Plugin::Readonly - Make stores or bags read-only
=head1 SYNOPSIS
 $ cat catmandu.yml
 ---
 store:
  test:
    package: File::Simple
    options:
      default_plugins: [ 'Readonly']
      root: t/data
 # This will  fail, no files can be added to the 'test' store
 $ catmandu stream myfile.txt to test --bag 1 -id myfile.txt
 # This command will succeed only if the 'test' database contains
 # the 'sample.txt' file
 # catmandu stream test --bag 3 --id sample.txt
=head1 DESCRIPTION
The Catmandu::Plugin::Readonly will transform a Catmandu::Store or a Catmandu::Bag
in read-only mode: all writes, deletes and drops will be ignored.
This command will work on L<Catmandu::Store> and L<Catmandu::FileStore>
implementations.
=head1 SEE ALSO
L<Catmandu::Store>, L<Catmandu::Bag>
=cut
 |