update of PATH

[tcurdt]

I have a dep that updates /etc/profile and adds something to the PATH.

Somehow I need to source /etc/profile to verify it made it into the PATH (with in_path?).

But I am not really sure how to do this as this cannot be done through a sub shell. Any thoughts?

cheers,

Torsten

[Ben Hoskings]

This might be possible with #login_shell, or some variation on it. The mechanics around starting new sessions are really tricky, though.

(On OS X, you can use `login -f` to start a new session with an arbitrary command, much like `zsh -c ls` or similar. That lets you easily check the state of things under a fresh session, like shell configuration, etc. Unfortunately, the default `login` on a Linux box doesn't support arbitrary commands via '-f'.)

- Ben

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