Bash autocompletion

[kerscher]

For interactive users, it would be useful to provide shell completion.
GNU Bash is widespread and a good candidate for first implementation.

I can help by providing a PR, but would need to know if this is useful to spend time on or not.
If so I’ll sign the CLA and send the request.

[csstaub]

Yeah, that'd nice. We could get it for free if we migrate to using kingpin for flags, I think.

[kerscher]

Would the bash_profile version where you have to eval $(certstrap --completion-script-bash) be acceptable? This avoids having to change any installation routines and affecting the user global state.

Reference: https://github.com/alecthomas/kingpin#bashzsh-shell-completion

[kerscher]

Migrating to kingpin seems like a medium-size change and not a simple addition of a bash script. Is this in the roadmap, just a general idea, or something one could possibly work in parallel and merge afterwards?

[mcpherrinm]

I think migrating to kingpin is on our immediate short-term roadmap -- I was hoping to do it sometime this month. And then we get it for free.

All our other go command line tools use it, so it would make maintenance easier for us.

[mweissbacher]

I looked into this and the single dash multiple character flags ( -help vs --help ) are not supported in kingpin and would break backwards compatibility.