ruby - 打开文件后检查文件是否在关闭时被修改

Question

我想知道我的做法是否正确。

def checkout
  clone = system( "svn export #{file} tmp/" )
  open_file = system( "start tmp/#{@file}" )
end

现在，我可以使用默认编辑器打开我想要的文件，但如何记录文件在关闭前是否被修改。

我应该创建一个 Process 并执行 Process.wait 还是什么？

谢谢你的帮助

Answer 1

使用File::mtime方法相同。

Returns the modification time for the named file as a Time object.

file_time_before_opening = File.mtime('your file/path')
# do file operation as you like
file_time_after_closing = File.mtime('your file/path')
# now compare file_time_before_opening and file_time_after_closing to know
# if it is modified or not.