detect if compinit was run and rerun

[Paul Seyfert <pseyfert.mathphys@gmail.com>]

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Dear all,

We are working on a small script that is supposed to be sourced to set
up some environment for a user. I.e. it mostly prepends to PATH,
LD_LIBRARY_PATH, MANPATH, PYTHONPATH, CMAKE_PREFIX_PATH.

For the additional commands, we would also like to provide tab
completions. The plan is atm to have them all in one directory which
would be prepended (appended?) to $fpath.

As far as I see, manipulating $fpath doesn't change the completion
behaviour until `compinit` is run. As far as I know it corresponds the
zsh design to not force completion on the user unless they ask for it,
therefore I don't want to blindly run compinit in the script (if a user
does not call `compinit`, I don't do it for them). On the other hand I
don't want to annoy users with "yes, you already called `compinit` in
your .zshrc, but you need to do it again".

I am therefore wondering if I can detect if `compinit` has already been
called and rerun it if so.

Do you have suggestions how to approach this?



I drafted:

( compdef ) ; [ $? != 127 ] && compinit ;

Ideally I would reuse its settings. I.e. if a user ran `compinit` with
-i or -C originally, our script shouldn't run `compinit` w/o.

Thanks,
Paul

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