From: Tim Cross <theophilusx@gmail.com>
To: emacs-orgmode@gnu.org
Subject: Re: trivial software engineering'ish question: switching org's
Date: Mon, 22 Mar 2021 08:35:00 +1100 [thread overview]
Message-ID: <87mtuwkw3y.fsf@gmail.com> (raw)
In-Reply-To: <705757.1616348671@apollo2.minshall.org>
Greg Minshall <minshall@umich.edu> writes:
> 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".
>
> i'm wondering is there a way people do this other than simply
> installing/deleting the package version?
>
As I understand it, the critical part is when Emacs compiles the org
files to get the *.elc versions. Provided you do not have any org
functionality loaded during that compilation process, everything should
be OK. The 'mixed' versions problem arises because you go to compile a
different version and Emacs includes definitions already loaded from
another version, generating *.elc files with mixed versions.
Once org is compiled, the critical part is having the org version you
want show up first in the load-path, so the problem becomes one of just
managing the load-path entries appropriately. You could just ensure the
version you want is higher in the load-path or you could go the
'paranoid' route and have code which removes the version you don't want
from the load-path.
In the past, what I've done is have the git version of org in a specific
directory which I build with a separate process from the command line
using the make recipes in the repository - essentially just configuring
and running make. I then have some code in my init.el file which sets
that version at the start of my load-path when I want to run it and
which I comment out when I just want to run the version installed by
package.el. I also use the use-package macro to load my org
configuration and have two different blocks for that - one loading the
git repo version and one loading the org-plus-contrib version I
normally use. I just comment out the one I don't want to use. I probably
could write some elisp to automate this, but to be honest, I switch
between org versions so rarely, commenting/uncommenting parts of my
init.el file is easy enough.
I don't do any of that at the moment as I've not needed to run from the
git repo since I switched to spacemacs and the spacemacs setup already
has the necessary workflow to ensure new versions of org are compiled in
a clean environment. Have not yet thought about how I will need to add
git based org when using spacemacs. Suspect All I'll need to do is
adjust the load-path as part of the init to reference the git sources
before any org functionality is loaded.
--
Tim Cross
next prev parent reply other threads:[~2021-03-21 21:58 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-21 17:44 trivial software engineering'ish question: switching org's Greg Minshall
2021-03-21 21:35 ` Tim Cross [this message]
2021-03-22 1:43 ` Gustav Wikström
2021-03-22 7:41 ` Greg Minshall
2021-03-24 2:56 ` straight.el and org info pages? Greg Minshall
2021-03-24 4:49 ` Gustav Wikström
2021-03-24 6:25 ` Greg Minshall
2021-03-24 5:02 ` Richard Kim
2021-03-24 6:23 ` Greg Minshall
2021-03-22 0:40 ` trivial software engineering'ish question: switching org's Anthony Cowley
2021-03-22 12:06 ` Maxim Nikulin
2021-03-24 5:12 ` Greg Minshall
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