lib/Kalamar/Plugin/StartWithBackend.pm

package Kalamar::Plugin::StartWithBackend;
use Mojo::Base 'Mojolicious::Plugin';
use Mojo::Base -strict;

sub register {
  my ($plugin, $mojo) = @_;
  my $java = `sh -c 'command -v java'`;
  chomp $java;
  if ($java eq '') {
    warn('No java executable found in PATH. ' . __PACKAGE__ . ' requires a JVM.');
    return 0;
  };
  # Add additional command path
  push(@{$mojo->commands->namespaces}, __PACKAGE__);
  return 1;
};

1;