#!/usr/bin/env ruby
# encoding: UTF-8

require 'optparse'
require 'restartable'

options = {}
option_parser = OptionParser.new do |op|
  op.banner = <<-TEXT
#{op.program_name} v#{Restartable.version}

Usege:
  #{op.program_name} [options] command [arg…]

  TEXT

  op.on('-r', '--on-restart CMD', 'Run CMD on restart') do |cmd|
    (options[:on_restart] ||= []) << proc{ system cmd }
  end

  op.separator nil

  op.on_tail('-h', '--help', 'Show full help') do
    puts option_parser.help
    exit
  end

  op.on_tail('--version', 'Show version') do
    puts Restartable.version
    exit
  end
end

begin
  option_parser.order!
  fail OptionParser::ParseError, 'No command to run' if ARGV.empty?
rescue OptionParser::ParseError => e
  abort "#{e}\n\n#{option_parser.help}"
end

Restartable.new(options) do
  exec(*ARGV)
end