Question: Order of output from the -e, -g, etc cmd line options?

[joeschmoe40]

I have a script where I use youtube-dl to generate the title, the (long) URL, and the duration of a video. I use the options: -e, --get-duration, and -g

It works fine, but I've noticed that the output (which is redirected to a file with ">") always comes out in the order (3 lines in the output file):

title
url
duration

regardless of the order of the command line options. I.e., I can use the order I listed above (-e first, then --get-duration, then -g) or any other order, but it always come out in the order shown above.

This is fine, of course, and obviously not a bug, but I want to know a) Why this is and b) Can I rely on it (always coming out in that order) ?

Version is 2020.09.06, running under Windows 10.

[joeschmoe40]

Bueller? Bueller?

[dstftw]

These options are not supposed to be used together in the first place, you should use JSON output instead.

[joeschmoe40]

I have used JSON output from youtube-dl on prior occasions. But that adds complexity.

Is it documented anywhere that you aren't supposed to use more than one of these at a time? Or is that just an opinion?

Anyway, still curious about the answer. Is it deterministic what order they will come out in?