Re: Custom git completion

> "Shawn O. Pearce" <spearce@spearce.org> writes:
> 
> > David Rhodes Clymer <david@zettazebra.com> wrote:
> >> Unless I read it incorrectly, the completion script included with
> >> git-core does not make it easy for users to write completion scripts
> >> for custom git commands. I can extend git itself by creating a command
> >> "git-foo", and placing it in my path.
> >
> > git config --global alias.foo /home/me/bin/my-git-foo
> >
> > git foo will now complete correctly.  No need to modify the
> > completion code.
> 
> Yes.  Aliases and custom subcommands are found from 'git help" output just
> fine (you need to install new subcommand in exec-path).
> 
> But.
> 
> How does the completion code learn what options and arguments such aliases
> and subcommands (e.g. "git foo") take without being told?

> An alias that uses another git subcommand (i.e. the ones that do not start
> with a bang "!") seems to be handled correctly, but one of my aliases is
> this:
> 
>     [alias]
> 	lgm = "!sh -c 'GIT_NOTES_REF=refs/notes/amlog git log \"$@\" || :' -"