From: Dan Davison <davison@stats.ox.ac.uk>
To: "Rémi Vanicat" <vanicat@debian.org>
Cc: emacs-orgmode@gnu.org
Subject: Re: Re: [babel] using tramp when tangling
Date: Wed, 17 Mar 2010 21:08:54 -0400 [thread overview]
Message-ID: <87aau6jv15.fsf@stats.ox.ac.uk> (raw)
In-Reply-To: <87k4ta202m.dlv@debian.org> ("Rémi Vanicat"'s message of "Wed, 17 Mar 2010 20:57:21 +0100")
vanicat@debian.org (Rémi Vanicat) writes:
> Maurizio Vitale <mav@cuma.i-did-not-set--mail-host-address--so-tickle-me> writes:
>
>> I'd find useful to use tramp syntax in the :tangle specification.
>> In my case it would be to specify sudo when tangling config files that
>> are supposed to go to areas not writable by the user running Emacs.
>> Something like:
>>
>> #+begin_src sh :tangle /sudo::/etc/my_config_file
>> ...
>> #+end_src
>>
>> other people might be interested in remote access to tangle targets.
>>
>> Is there a way to achieve the above?
>>
>> If I try to tangle the above, I get something along the lines that
>> "tramp cannot append to file". Would it be possible to have org-babel to
>> (optionally) tangle to a buffer and then save to file in one go?
>
> It's a bug of append-file. We could not use it: (code by Alexey Voinov,
> stolen from magit):
Well that was solved quickly. Thanks Rémi, I've applied that with a
couple of minor changes.
Dan
>
> diff --git a/contrib/babel/lisp/org-babel-tangle.el b/contrib/babel/lisp/org-babel-tangle.el
> index dd76195..c4ea0d8 100644
> --- a/contrib/babel/lisp/org-babel-tangle.el
> +++ b/contrib/babel/lisp/org-babel-tangle.el
> @@ -127,7 +127,12 @@ exported source code blocks by language."
> (insert (concat she-bang "\n"))
> (setq she-banged (cons file-name she-banged)))
> (org-babel-spec-to-string spec)
> - (append-to-file nil nil file-name))
> + (let ((content (buffer-string)))
> + (with-temp-buffer
> + (insert-file-contents file-name)
> + (goto-char (point-max))
> + (insert content)
> + (write-region nil nil ignore-file))))
> ;; update counter
> (setq block-counter (+ 1 block-counter))
> (add-to-list 'path-collector file-name)))))
next prev parent reply other threads:[~2010-03-18 1:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-17 18:39 [babel] using tramp when tangling Maurizio Vitale
2010-03-17 19:57 ` Rémi Vanicat
2010-03-18 1:08 ` Dan Davison [this message]
2010-03-17 20:06 ` Dan Davison
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