Ruby spawn a process that outlives the lifetime of the program-CodePudding

I have a program, where I am starting a program called mpv. I want to use the shell to start mpv with a video, and then exit my ruby program. My problem is that currently, the mpv instance is killed the the ruby program ends. How can I fix this?

# do some stuff
system 'mpv \"#{video_url}" & disown'
# end of program

I have also tried using

pid = Process.spawn "mpv \"#{video_url}\""
Process.detach pid

The program is that both of these will make the mpv process be killed immediately. If I do not exit, or if I sleep at the end of the program, the video plays until the program ends. How can I make spawning of mpv last longer than my ruby program?

CodePudding user response：

You can just use exec(). It will terminate your ruby program and execute the given command

exec('mpv \"#{video_url}\"')

or you can use spawn too

spawn exec "mpv \"#{video_url}\" &"