mindnode-to-opml

#!/usr/bin/env ruby

require "optparse"
require "pathname"

Options = Struct.new(:help, :filenames)

def main
  options = Options.new(help: false, filename: nil)
  op = OptionParser.new do |opts|
    opts.banner = <<-BANNER
  Usage: mindnode-to-opml filename"
  
  filename accepts MindNode files or "package" directories.
    BANNER
    opts.separator ""
    opts.separator "Options: "


    opts.on("-h", "--help", "Print this help message") do |h|
      options.help = true
    end
  end

  op.parse!
  filenames = ARGV

  filenames.each do |filename|
    path = Pathname.new(filename)
    if path.exist?
      convert(path)
    else
      $stdout.puts "#{filename}: not found"
      exit -1
    end
  end
end

def convert(path)
  input = path.expand_path
  output = (path.dirname + path.basename(".*")).to_s + ".opml"

  osa_script = <<~JS
    const MindNode = Application("MindNode")
    var doc = MindNode.open("#{input}")
    const filename = "#{output}"
    doc.export({to: filename, as: "OPML"})
  JS
  statement_lines = osa_script
                      .split("\n")
                      .map { |l| "-e '#{l}'" }
                      .join(" ")
  cmd = "osascript -l JavaScript #{statement_lines}"

  puts "#{input} -> #{output}"
  Kernel.system(cmd, exception: true)
end

if __FILE__  === $0
  main
end