From mboxrd@z Thu Jan  1 00:00:00 1970
From: Amin Bandali <aminb@gnu.org>
Subject: Re: Feature request: Maintaining multiple init files with one org
 file
Date: Sat, 28 Jul 2018 09:53:54 -0400
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To: Sven Bretfeld <sven.bretfeld@ntnu.no>, Org-mode <emacs-orgmode@gnu.org>

Hello,

Indeed, a tag-based solution (e.g. with :office:, :home:, etc)
would be great; but what I do right now looks something like
this:

,----
| #+property: header-args :tangle ~/.emacs
|
| * Default Frame
|
| ** All computers
| #+begin_src emacs-lisp
| (defvar myvar "testing")
| #+end_src
|
| ** Office Computer
| #+begin_src emacs-lisp :tangle (when (string= (system-name) "officepc") "~/.emacs")
| (setq default-frame-alist '(
| 	  (font . "-PfEd-DejaVu Sans Mono-normal-normal-normal-*-26-*-*-*-m-0-iso10646-1")
| 	  (width . 102)
| 	  (height . 41))
| #+end_src
|
| ** Laptop
| #+begin_src emacs-lisp :tangle (when (string= (system-name) "mylaptop") "~/.emacs")
| (setq default-frame-alist '(
| 	  (font . "-PfEd-DejaVu Sans Mono-normal-normal-normal-*-12-*-*-*-m-0-iso10646-1")
| 	  (width . 80)
| 	  (height . 30))
| #+end_src
|
| ** More stuff for all computers
|
| #+begin_src emacs-lisp
| (message myvar)
| #+end_src
`----

In other words, I use `when' and `string=' (from subr.el) and
`system-name' to check the hostname.  If it matches what I want,
I return the "~/.emacs" filename, nil otherwise.  Alternatively,
you could probably use `if' and return "no" when it doesn't
match, but :tangle nil seems to work just fine so I went with
`when'.

Hope that helps.

Best,

-amin