/usr/share/perl5/Catmandu/Fix/retain.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 | package Catmandu::Fix::retain;
use Catmandu::Sane;
our $VERSION = '1.07';
use Moo;
use namespace::clean;
use Catmandu::Fix::Has;
with 'Catmandu::Fix::Base';
has paths => (fix_arg => 'collect', default => sub {[]});
sub emit {
my ($self, $fixer) = @_;
my $paths = $self->paths;
my $var = $fixer->var;
my $tmp_var = $fixer->generate_var;
my $perl = $fixer->emit_declare_vars($tmp_var, '{}');
for (@$paths) {
my $path = $fixer->split_path($_);
my $key = pop @$path;
$perl .= $fixer->emit_walk_path(
$var, $path,
sub {
my ($var) = @_;
$fixer->emit_get_key(
$var, $key,
sub {
my ($var) = @_;
$fixer->emit_create_path(
$tmp_var,
[@$path, $key],
sub {
my ($tmp_var) = @_;
"${tmp_var} = ${var};";
}
);
}
);
}
);
}
# clear data
$perl .= $fixer->emit_clear_hash_ref($var);
# copy tmp data
$perl .= $fixer->emit_foreach_key(
$tmp_var,
sub {
my ($key) = @_;
"${var}\->{${key}} = ${tmp_var}\->{${key}};";
}
);
# free tmp data
$perl .= "undef ${tmp_var};";
$perl;
}
1;
__END__
=pod
=head1 NAME
Catmandu::Fix::retain - delete everything except the paths given
=head1 SYNOPSIS
# Keep the field _id , name , title
retain(_id , name, title)
# Delete everything except foo.bar
# {bar => { x => 1} , foo => {bar => 1, y => 2}}
# to
# {foo => {bar => 1}}
retain(foo.bar)
=head1 SEE ALSO
L<Catmandu::Fix>
=cut
|