Re: _git Completion and custom commands

["Benjamin R. Haskell" <zsh@benizi.com>]

On Tue, 28 Sep 2010, Sebastian Stark wrote:

>
> Am 28.09.2010 um 06:06 schrieb Benjamin R. Haskell:
>>> My question is then: how would I add my custom commands' names to 
>>> the list already completed by _git (without completely overriding or 
>>> modifying the system-wide configuration)?
>>
>> This has bothered me for a while, too.  I think _git should include 
>> these by default.  But, it's pretty easy to add:
>>
>> zstyle ':completion:*:git:*' user-commands ${${(k)commands[(I)git-*]}#git-}
>>
>> (I've found _git to be very about what it allows you to override via zstyles)

                               ^ (very good about)

>>
>> Explanation of the '${${(k)commands[(I)git-*]}#git-}' portion:
>>
>> $commands is a built-in associative array that maps basenames to 
>> their full paths.
>>
>> E.g. one of my custom git- commands that it picks up is:
>> commands[git-build-zsh]=/home/bhaskell/bin/git-build-zsh
>>
>> So, we're looking for the keys '(k)'.  And we only want entries in 
>> the hash that have (I)ndexes matching 'git-*'.  Then we want to 
>> remove the leading 'git-' portion ( ${...#git-} ).
>
> All this is just because then you can type "git bu<TAB>" instead of 
> "git-bu<TAB>"?

Roughly, yes.  But "all this" is really just adding a line to a startup 
file.  The rest was just over-explanation (since the OP mentioned just 
switching from bash).


> Or is there more to it? Perhaps I do not understand.

If you started learning git before all the git-cmd -style commands were 
no longer in path, maybe that git-bu<tab> seems natural, but I don't 
like that style at all.  And personally, typing 'git ' is becoming so 
common I may alias it to 'g '.

The other portion not mentioned is that commands thus added show up in 
the normal list:

git <tab>

produces lots of output, but ends with my custom commands all grouped at 
the end.

-- 
Best,
Ben