#!/usr/bin/perl

use strict;
use warnings;

use Piny;

my ( $reponame, $attr, $value ) = @ARGV;

if ( not defined $reponame or not defined $attr ) {
  die "Usage: $0 reponame tweakable [value]\n";
};

$attr = lc $attr;
$attr =~ s/\./_/g;

my $repo = Piny::Repo->new( $reponame );

if ( defined $value ) {
  undef $@;
  eval {
    $repo->config->$attr( $value );
  };
  if ( $@ ) {
    print STDERR "$attr is not a legal tweakable, or $value is not a legal value for that tweakable.\n$@\n";
  };
  if ( $value ne $repo->config->$attr ) {
    print STDERR "Failed to set $attr (perhaps an override is in place)\n";
  };
};

undef $@;
eval {
  print "$attr = " . $repo->config->$attr . "\n";
};
if ( $@ ) {
  print STDERR "$attr is not a legal tweakable, or its current value is illegal.\n$@\n";
};