[maleldil]

spf13/cobra and urfave/cli are fine, I think. As sibling said, you can't expect Go to have something like Rust's clap because the metaprogramming capabilities are so different.

On the other hand, I find it sad how terrible stdlib's flag library is. I'd love to have something like Python's argparse, which is not perfect but enough for most of the time. Go's flag doesn't even work well for small programs. It should've been more like spf13/pflag, but as we've often seen with Go, they went "screw decades-old conventions" and did something strictly worse.

[majewsky]

As far as I understand, they respected decades-old conventions. Just not the ones we needed (Plan9 instead of POSIX/GNU getopt).

[sureglymop]

I have tried all of these. They all have their niceties but they also have their problems. They do not come close to clap in flexibility though. Argparse from python is nice, you're right. Thanks for explaining that, i'll look into how different the metaprogramming capabilities are.

[bbkane]

On the other hand, if you're looking for a side project, writing your own flag parsing library is a lot of fun! I've been sinking time into mine for a few years and it's always really satisfying to use in my CLIs