爱普生LQ-615KII打印小工具

epson-print

#!/bin/env ruby

require 'open3'
require 'iconv'
require 'shellwords'

$args = ARGV
show_help = $args.include?('-h') || $args.include?('--help') || $args.empty?
if show_help
  puts %{Epson LQ-615KII Print Utility

Usage:
  REPL mode
  #{$0} --repl

  Print PDF file
  #{$0} <predefined-page-size-file> <pdf-file>
}
  exit 1
end

def repl_run
  printer = "epson-gbk"
  puts "输入文本，每行回车后发送到打印机 (Ctrl+D 结束)"

  while (line = gets)
    line.strip!
    unless line.empty?
      puts line
      line = Iconv.conv('GBK', 'UTF-8', line)
      Open3.popen3("lp -d #{printer}") do |stdin, _, _, _|
        stdin.puts line
      end
    end
  end

  puts "打印结束"
end

def print_pdf_run
  fail if $args.length != 2
  size_file = $args[0]
  pdf = $args[1]
  page_size = File.open(size_file).readlines(chomp: true)[0].strip
  system 'lpoptions -p epson -o Resolution=360x180dpi'
  system "lpoptions -p epson -o PageSize=#{Shellwords.escape page_size}"
  system "lpr -P epson #{Shellwords.escape pdf}"
end

if $args[1] == '--repl'
  repl_run
else
  print_pdf_run
end