ProjectVersion によって起動する Unity を変えるやつコマンドライン引数対応版。

unityrun.rb

#!/usr/bin/env ruby

require "yaml"

UNITY_DIR_PREFIX = ENV.fetch("UNITY_DIR_PREFIX", "/Applications/Unity")

unity_args = ARGV.dup
project_path = Dir.getwd
path_arg = ARGV.index("-projectPath")
if path_arg
  project_path = ARGV[path_arg + 1]
else
  unity_args.unshift("-projectPath", project_path)
end

project_settings = File.join(project_path, "ProjectSettings")
raise "#{project_path} は Unity プロジェクトじゃない!" unless Dir.exists?(project_settings)

version_file = File.join(project_settings, "ProjectVersion.txt")

def get_project_version(version_file)
  # ProjectVersion.txt がなかったら 4 系として扱う。
  return "4" unless File.exists?(version_file)

  yaml = YAML.load_file(version_file)
  yaml["m_EditorVersion"]
end

version = get_project_version(version_file)

unity_dir = UNITY_DIR_PREFIX + version
raise "Version #{version} の Unity が #{unity_dir} にインストールされていない!" unless Dir.exists?(unity_dir)
exe_path = File.join(unity_dir, "Unity.app", "Contents", "MacOS", "Unity")

puts "exec '#{exe_path}' #{unity_args}"
exit(system(exe_path, *unity_args))

github に移した。 https://github.com/tmr111116/urun