makeapp - スクリプトをMacのアプリケーションにする

makeapp.rb

#!/usr/bin/env ruby
# cf. http://bit.ly/2raKfLZ
# makeapp - スクリプトをMacのアプリケーションにする

if ARGV.length != 2
  abort("Usage: makeapp foo.rb Foo.app")
end

scriptname = ARGV[0]
appname = ARGV[1]
 
system("mkdir -p #{appname}/Contents/MacOS")
system("mkdir -p #{appname}/Contents/Resources")
open("#{appname}/Contents/Info.plist", "w") do |f|
  f.puts <<-"EOD"
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>CFBundleExecutable</key>
    <string>#{scriptname}</string>
  </dict>
</plist>
  EOD
end
system("cp #{scriptname} #{appname}/Contents/MacOS/")
system("chmod +x #{appname}/Contents/MacOS/#{scriptname}")