#!/usr/bin/env ruby

require "liquidscript"

if ARGV.length < 1
  puts "Usage: #{File.basename($0)} infile [outfile]"
  exit 1
end

infile = ARGV.shift
outfile = ARGV.shift || infile.gsub(/\.liq\Z/, ".js")

if infile == '-'
  infile = $stdin
else
  infile = File.open(infile, "r")
end

if outfile == '-'
  outfile = $stdout
else
  outfile = File.open(outfile, "w")
end

begin
  out = Liquidscript.compile(infile.read)
  outfile.write(out)
rescue StandardError => e
    $stderr.puts "ERROR: #{e.class}: #{e.message}"
    $stderr.puts e.backtrace[0..5].map { |s| "\t#{s.gsub(/^.*?\/lib\/liquidscript\//, "")}" }.join("\n")
ensure
  [infile, outfile].each(&:close)
end