This should give more appropriate results when completing multi-level
commands. It's a bit of a hack but should be good enough most of the times.

I.e., currently:

$ darcs show repo <TAB>
--help        contents      files         patch-index   repo
authors       dependencies  index         pristine      tags

with this completion:

$ darcs show repo <TAB>
--debug               --no-posthook         --run-posthook
--debug-http          --no-prehook          --run-prehook
--disable             --posthook            --standard-verbosity
--files               --prehook             --timings
--help                --prompt-posthook     --verbose
--list-options        --prompt-prehook      --xml-output
--no-cache            --quiet
--no-files            --repodir

Also supports 'help' and 'setpref' once (if) issue2525 is solved.

1 patch for repository valentina:var/repos/darcs/screened:

patch dd660f6b34d4e4775db2984c55f1a5568a482adc
Author: Gian Piero Carrubba <gpiero@rm-rf.it>
Date:   Thu Mar  9 12:04:53 CET 2017
  * bash_completion: better support for multi-level commands

Attachments

• bash_completion_-better-support-for-multi_level-commands.dpatch
• patch-preview.txt

Thanks, applied (just to screened, for the moment, as I am not good at
reading much less understanding bash completion...).

* [Wed, Mar 15, 2017 at 04:55:53PM +0000] Ben Franksen:
>Thanks, applied (just to screened, for the moment, as I am not good at
>reading much less understanding bash completion...).

Oops, was going to send an amended patch that copied the approach used 
by the zsh completion as it is much cleaner. Attaching a new patch that 
cleanly apply to current screened, instead.

Best,
Gian Piero.

Attachments

• bash_completion_-copy-the-approach-used-by-the-zsh-completion.dpatch

No problem. The simplification is appreciated ;-)

(I am a bit surprised that this works, I thought zsh and bash were
completely different here.)

Looks good to me (I've read it and tried it out), thanks!