cvs-like file completion

cvs-like file completion

[Chris Johnson]

Hi.  Anyone familiar with the intimacies of completion know how I could
make completion work like it does after "cvs add", but for a custom
shell script?

That is, I want to complete for a script cvsvimdiff all files that need
committing to the cvs repository.  Something like:

   compdef cvsvimdiff="cvs add"

This isn't legal, of course, but that's the idea.

Thanks for any input!

-- 
Chris Johnson
cjohnson@cs.utk.edu
http://www.cs.utk.edu/~cjohnson

Re: cvs-like file completion

[Frank Terbeck]

Chris Johnson <cjohnson@cs.utk.edu>:
> Hi.  Anyone familiar with the intimacies of completion know how I could
> make completion work like it does after "cvs add", but for a custom
> shell script?
> 
> That is, I want to complete for a script cvsvimdiff all files that need
> committing to the cvs repository.  Something like:
> 
>    compdef cvsvimdiff="cvs add"
> 
> This isn't legal, of course, but that's the idea.

If the cvs completion function file _cvs is already loaded (and not
only marked for autoloading by compinit), you could do:

  % compdef _cvs_files_unmaintained cvsvimdiff

That means, if you didn't use '_cvs' completion yet, you will get:

(eval):1: command not found: _cvs_files_unmaintained

To cure this, use '_cvs' by doing '_cvs add <TAB>', or source the
'_cvs' file by hand (and ignore the error message):

[snip]
% source /usr/share/zsh/4.3.4/functions/Completion/Unix/_cvs
_arguments:comparguments:303: can only be called from completion function
[snap]

Note, that AFAICS this only works, because '_cvs' creates a function,
that is dedicated to the task of finding uncommited files. For other
commands, this idea might not work.

Regards, Frank

PS: I don't know if there are better solutions for this problem. :-)

-- 
In protocol design, perfection has been reached not when there is
nothing left to add, but when there is nothing left to take away.
                                                  -- RFC 1925

Re: cvs-like file completion

[Frank Terbeck]

Frank Terbeck <ft@bewatermyfriend.org>:
[...]
>   % compdef _cvs_files_unmaintained cvsvimdiff
> 
> That means, if you didn't use '_cvs' completion yet, you will get:
> 
> (eval):1: command not found: _cvs_files_unmaintained
[...]

Just a clarification:
You get the error, when you try completion for cvsvimdiff (without
'_cvs' being loaded), not when entering the 'compdef' command.

Regards, Frank

-- 
In protocol design, perfection has been reached not when there is
nothing left to add, but when there is nothing left to take away.
                                                  -- RFC 1925

Re: cvs-like file completion

[Peter Stephenson]

Frank Terbeck wrote:
> Chris Johnson <cjohnson@cs.utk.edu>:
> > That is, I want to complete for a script cvsvimdiff all files that need
> > committing to the cvs repository.  Something like:
> > 
> >    compdef cvsvimdiff="cvs add"
> > 
> 
> If the cvs completion function file _cvs is already loaded (and not
> only marked for autoloading by compinit), you could do:

  autoload +X _cvs

will load the _cvs completion.

  _cvs_only_add() {
    autoload +X _cvs
    _cvs_files_unmaintained "$@"
  }
  compdef _cvs_only_add cvsvimdiff

would do the trick, E&OE.

-- 
Peter Stephenson <pws@csr.com>                  Software Engineer
CSR PLC, Churchill House, Cambridge Business Park, Cowley Road
Cambridge, CB4 0WZ, UK                          Tel: +44 (0)1223 692070


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Re: cvs-like file completion

[Chris Johnson]

Peter Stephenson sent me the following 1.0K:

> > > That is, I want to complete for a script cvsvimdiff all files that need
> > > committing to the cvs repository.  Something like:
> > > 
> > >    compdef cvsvimdiff="cvs add"
>
>   _cvs_only_add() {
>     autoload +X _cvs
>     _cvs_files_unmaintained "$@"
>   }
>   compdef _cvs_only_add cvsvimdiff

Thanks, Frank and Peter.  This works just great.  I mistyped above,
though, with the "cvs add".  I intended "cvs commit", for which I can
use the _cvs_files_modified function.

-- 
Chris Johnson
cjohnson@cs.utk.edu
http://www.cs.utk.edu/~cjohnson