I am using rbenv on Mac OS X. I have autocomplete functionality already for the gem command:
$ gem
build environment lock query stale
cert fetch mirror rdoc uninstall
check generate_index outdated search unpack
cleanup help owner server update
contents install pristine sources which
dependency list push specification yank
But I often use gem which in order to get the location of an installed gem in order to browse the source. Something like:
gem which sp[tab]
spork-1.0.0rc4 spork-rails-4.0.0 sprockets-2.10.1 sprockets-rails-2.0.1
Mapping directories shouldn't be that hard, but I think that having existing autocomplete functionality may complicate things. I've tried writing custom bash completion functions before but I always get really frustrated with it. This one is also going to have to check the current ruby version with something like rbenv version before picking the directory to check.
- Is it possible to "tack on" this "sub-command" functionality with bash completion?
I recently learned about Thor which seems to make building command-line programs pretty easy by mapping arguments to classes and methods (just a tangentially related example not a solution for this), but
- Are there any good resources or frameworks for creating custom bash completion functions?
...or, if there is no such framework, how can I set up the bash completion function as a script so that I can run it and have it output the results? ( Perhaps using something like inotifywait to run the script when it is changed, passing input like "sp" and using the console to debug the output until it works correctly? ) Just hoping there is an easier way to do it because trying to write bash completion is probably one of the most aggravating things I've worked on.
