this post was submitted on 18 Nov 2023
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Advice from elisp hackers on improvemenets to tuedachu/ytdl? (alien.top)
submitted 1 year ago by camber-weaver@alien.top to c/emacs@communick.news
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Hey hey.

I use the heck out of tuedachu/ytdl. One thing I would like to improve about it is that when you queue a download with ytdl-download it appears to be a synchronous call and it freezes emacs until youtube-dl/yt-dlp is able to start the actual download.

I've yet to dive into the code to see what synchronous function is being called -- I'm very aware of the "single-threaded" nature of Emacs -- but I use other libraries that are likely shelling and they do not hang like this and so I would like to see if there's a way to I can bring whatever technique they are using over to a PR against tuedachu/ytdl.

Appreciate any advice from the crew here.

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[–] noooit@alien.top 1 points 1 year ago

Multi-processing is the only way for staying asynchronous.

[–] xenodium@alien.top 1 points 1 year ago

I use dwim shell command for these things (async by default). For example https://github.com/xenodium/dwim-shell-command/blob/e4a139fe181ed1b576302fb36f3761fbf9914580/dwim-shell-commands.el#L83C7-L83C7

Disclosure: authored the package