* Experiences with "literate elisp" and ob-tangle?
@ 2011-08-22 14:20 John Wiegley
2011-08-22 17:09 ` Eric Schulte
0 siblings, 1 reply; 3+ messages in thread
From: John Wiegley @ 2011-08-22 14:20 UTC (permalink / raw)
To: emacs-orgmode
Hi all, I'm considering switching my lengthy .emacs over to a literate Org
file, using ob-tangle, and as I was wondering if others had any experience
with this, and if so, does it slow down startup much? Is there a way to get
ob-tangle to compile the resulting Elisp file? I'm guessing it does not
regenerate the .el file if no changes have been made to the .org, right?
Thanks,
John
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Experiences with "literate elisp" and ob-tangle?
2011-08-22 14:20 Experiences with "literate elisp" and ob-tangle? John Wiegley
@ 2011-08-22 17:09 ` Eric Schulte
2011-08-22 18:18 ` Darlan Cavalcante Moreira
0 siblings, 1 reply; 3+ messages in thread
From: Eric Schulte @ 2011-08-22 17:09 UTC (permalink / raw)
To: John Wiegley; +Cc: emacs-orgmode
Hi John,
John Wiegley <jwiegley@gmail.com> writes:
> Hi all, I'm considering switching my lengthy .emacs over to a literate Org
> file, using ob-tangle, and as I was wondering if others had any experience
> with this, and if so, does it slow down startup much?
The first load after a .org file is changed will require re-tangling of
the file, but in most cases the .el files are loaded directly and there
should be no slowdown. I've been using this for over a year now with no
noticable slowdown. For an example of a large config structured using
.org files and based on Emacs24 see [1].
> Is there a way to get ob-tangle to compile the resulting Elisp file?
Yes, see the makefile in the repo I pointed to above [2].
>
> I'm guessing it does not regenerate the .el file if no changes have
> been made to the .org, right?
>
That is correct, the `org-babel-load-file' function compares the
modification dates of the .el and .org file to see if re-tangling is
required.
Best of luck -- Eric
>
> Thanks,
> John
>
>
Footnotes:
[1] https://github.com/eschulte/emacs24-starter-kit
[2] https://github.com/eschulte/emacs24-starter-kit/blob/master/Makefile
--
Eric Schulte
http://cs.unm.edu/~eschulte/
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Experiences with "literate elisp" and ob-tangle?
2011-08-22 17:09 ` Eric Schulte
@ 2011-08-22 18:18 ` Darlan Cavalcante Moreira
0 siblings, 0 replies; 3+ messages in thread
From: Darlan Cavalcante Moreira @ 2011-08-22 18:18 UTC (permalink / raw)
To: Eric Schulte; +Cc: John Wiegley, emacs-orgmode
I've been using the Emacs starter kit for some time and I must say it is
excellent. Before making the change, I already had my Emacs initialization
broken-down into smaller .el files that were loaded by the master file. It
was as much organized as I could be, but not enough. It always required
more work when I needed to make any changes than I would like.
With the starter-kit I now use only a single org file for everything. The
outline-structure of org-mode allows me to have my initialization broken
down into smaller pieces in a more natural way without any extra
work. Also, it is much easier to locate any part of my initialization that
I want to change, since everything is in a single file and now I have tags.
Another bonus feature is that I can easily disable/enable parts of my
initialization simple by setting the tangle property of a sub-tree to
"nil", as well as putting "COMMENT" in the beginning of it (COMMENT will be
red, but has no effect besides identify a disabled sub-tree). This is
better than locating and commenting the undesired/desired lisp code in my
previous .el files. This allowed me to identify bottlenecks and optimize my
Emacs initialization.
--
Darlan
At Mon, 22 Aug 2011 11:09:17 -0600,
Eric Schulte wrote:
>
> Hi John,
>
> John Wiegley <jwiegley@gmail.com> writes:
>
> > Hi all, I'm considering switching my lengthy .emacs over to a literate Org
> > file, using ob-tangle, and as I was wondering if others had any experience
> > with this, and if so, does it slow down startup much?
>
> The first load after a .org file is changed will require re-tangling of
> the file, but in most cases the .el files are loaded directly and there
> should be no slowdown. I've been using this for over a year now with no
> noticable slowdown. For an example of a large config structured using
> .org files and based on Emacs24 see [1].
>
> > Is there a way to get ob-tangle to compile the resulting Elisp file?
>
> Yes, see the makefile in the repo I pointed to above [2].
>
> >
> > I'm guessing it does not regenerate the .el file if no changes have
> > been made to the .org, right?
> >
>
> That is correct, the `org-babel-load-file' function compares the
> modification dates of the .el and .org file to see if re-tangling is
> required.
>
> Best of luck -- Eric
>
> >
> > Thanks,
> > John
> >
> >
>
>
> Footnotes:
> [1] https://github.com/eschulte/emacs24-starter-kit
>
> [2] https://github.com/eschulte/emacs24-starter-kit/blob/master/Makefile
>
> --
> Eric Schulte
> http://cs.unm.edu/~eschulte/
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2011-08-22 14:20 Experiences with "literate elisp" and ob-tangle? John Wiegley
2011-08-22 17:09 ` Eric Schulte
2011-08-22 18:18 ` Darlan Cavalcante Moreira
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