Add post-command-hook locally

[xuchunyang]

It seems prodigy-set-default-directory is no use outside the prodigy buffer.

[rejeep]

I'm not sure exactly what this would mean in practice? Also, I don't use the hook so it's difficult for me to verify.

[xuchunyang]

The hook is added once you have invoked M-x prodigy. Since it's not added locally, prodigy-set-default-directory will be called even you're outside the *prodigy* buffer.

How to reproduce:

1. M-x prodigy and kill the buffer *prodigy*
2. C-h v post-command-hook and you should notice prodigy-set-default-directory is in the global value

[rejeep]

Ahh, now I see what you mean. I was a bit quick the first time and thought this was a mode hook for Prodigy. I also see that prodigy-set-default-directory checks the major mode, so it shouldn't be that much of an issue, but I agree it's better to not pollute the global state.

I added you as a collaborator, so feel free to merge.

Thanks! 👍

[xuchunyang]

Thanks. I notice the travis ci is failing but it's a Cask issue, so I've merged this pr.

[Fuco1]

I think the hook is ment to re-set the default directory when you change the active row (iow set it to that process's dd). :+1: