precommit mercurial hook to stop commits to the wrong branch

[Mads Kiilerich]

On 10/09/2013 11:09 AM, Faheem Mitha wrote:
> Ry4an kindly replied with a bash solution. I think I would prefer a 
> Python version, but that would use the Mercurial "not-an-api", as 
> Ry4an put it. Does this look practical? If anyone feels like taking 
> the time to sketch an approach, I'd appreciate it. Regardless, any 
> comments would be appreciated, Thanks.

You mention the reasons that a small script probably is the best 
solution. It could be implemented in python but be launched as a 
separate command without using the internal API.

That is not perfect but that is how it is.


However, a development idea / "feature request":

Introduce a new hook type that takes a revset in the hook configuration. 
Perhaps with different variants/configurations for rejecting when either 
none, any or all revisions is matching. Perhaps also with a template for 
which message should be shown to the user.

This would essentially be very much like something like
   myhook = ! ( hg log -r "..." --template "...\n" | grep . )
but cross platform and more efficient and very easy to configure.

My gut feeling is that it would be so generic and useful that it would 
have a good chance of getting accepted upstream.

/Mads