Re: trivial software engineering'ish question: switching org's

[Maxim Nikulin <manikulin@gmail.com>]

On 22/03/2021 00:44, Greg Minshall wrote:
> hi.  i occasionally want to switch from the org package to a git
> version, then back again.  and, i want to avoid the dread "mixed
> installation".

Do you really need to switch or just to launch it a couple of times? Is 
it required to run namely compiled version?

Actually I am unsure if the following way is reliable or it has some 
problems that I have not discovered yet.

emacs -q -L ~/src/org-mode/lisp -L ~/src/org-mode/contrib/lisp file.org

Unfortunately -L (--directory) options are processed after 
~/.emacs.d/init.el, that is why -q (--no-init-file) is added. I had 
(require 'org-protocol) in init.el file and a part of org bundled with 
emacs were loaded before processing of -L. If there is no setup for 
alternative org version, the file could be loaded after -L options using 
-l ~/emacs.d/init.el (--load), alternatively a bit cleaned variant of 
init.el from another directory could be specified.

I do not recommend to skip contrib directory. I noticed that due to 
system-wide configs some files could be loaded from older org contrib.