I'm dusting off a Rust project from 2016, and it's striking how much the ecosystem has grown. For example, I used getopts then whereas clap is delightful and does so much now.
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Porting my 2016 Rust project from getopts to clap, and it's amazing how far the ecosystem has come.
clap gives me a nicer help, automatic value validation, and can even generate completions for shells!
First screenshot is getopts, second is clap.
Emacs is still becoming *more* customisable over time! For example, in 2016, the backtrace function became a user-level function. https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=27cada035a79b633e856a437dd0e037acc1d61c6
This allows users to introspect, debug or write their own!
Looks like it was difficult for GitHub to maintain independence: it wasn't profitable for much of 2016:
