Unload environment with envrc--update when there is no envrc file

[jellelicht]

Is this hideous? Yes. Is this correct? No.

Does this work? It does, for me 😄

Fwiw, adding envrc—update to both eshell-load-hook and eshell-directory-change-hook make this fairly convenient to work with from eshell.

[purcell]

Thanks, but please could you explain the scenario this fixes, ie. with a sequence of actions and observed/expected results?

[jellelicht]

My example is about eshell, but it should really work with any buffer that can have changes to the value of its default-directory. Right now, after ‘activating’ a direnv environment with envrc-reload or envrc-load, you are stuck with it; you can either choose to ‘reload’ a different environment, or disable envrc entirely.

Imagine I have an .envrc in ~/Documents:

• M-x eshell
• cd ~/Documents
• M-x envrc-allow
• M-x envrc-load

Now I have my envrc environment available;

• cd ..
• what now? How do I unload the direnv environment, as it would be in a normal shell?

[purcell]

Great, yes, that makes sense. Merged, thank you!