control tangling from section header

control tangling from section header

[Ken Mankoff]

I'm working with my literate init file (emacs.org), and would like to
have certain sections not tangle. I currently do this with ":tangle no"
at the SRC block level. Is it possible to control tangling with tags at
the header level? It would make it much easier to disable/enable
sections, and see what sections are enabled/disabled, if the tangling
state were more clearly visible like tags are.

  -k.

Re: control tangling from section header

[Daniele Pizzolli]

Hello Ken,

Ken Mankoff writes:

> I'm working with my literate init file (emacs.org), and would like to
> have certain sections not tangle. I currently do this with ":tangle no"
> at the SRC block level. Is it possible to control tangling with tags at
> the header level?

Not with tag but with PROPERTIES:

* outline header
  :PROPERTIES:
  :header-args: :tangle no
  :END:

More at
http://orgmode.org/manual/Header-arguments-in-Org-mode-properties.html

> It would make it much easier to disable/enable sections, and see what
> sections are enabled/disabled, if the tangling state were more clearly
> visible like tags are.

I do not think that this is currently possible.

Best,
Daniele

Re: control tangling from section header

[Rainer M Krug]

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Daniele Pizzolli <dan@toel.it> writes:

> Hello Ken,
>
> Ken Mankoff writes:
>
>> I'm working with my literate init file (emacs.org), and would like to
>> have certain sections not tangle. I currently do this with ":tangle no"
>> at the SRC block level. Is it possible to control tangling with tags at
>> the header level?
>
> Not with tag but with PROPERTIES:
>
> * outline header
>   :PROPERTIES:
>   :header-args: :tangle no
>   :END:
>
> More at
> http://orgmode.org/manual/Header-arguments-in-Org-mode-properties.html
>
>> It would make it much easier to disable/enable sections, and see what
>> sections are enabled/disabled, if the tangling state were more clearly
>> visible like tags are.
>
> I do not think that this is currently possible.

If I am not mistaken, you can mark the header as COMMENT and no code
blocks under this header are tangled.

Cheers,

Rainer

>
> Best,
> Daniele
>
>
>
>
>

-- 
Rainer M. Krug
email: Rainer<at>krugs<dot>de
PGP: 0x0F52F982

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Re: control tangling from section header

[Ken Mankoff]

 
On 2015-02-23 at 09:39, Rainer M Krug <Rainer@krugs.de> wrote: 
>>> I'm working with my literate init file (emacs.org), and would 
>>> like to have certain sections not tangle. I currently do this 
>>> with ":tangle no" at the SRC block level. Is it possible to 
>>> control tangling with tags at the header level? 
> 
> If I am not mistaken, you can mark the header as COMMENT and no 
> code blocks under this header are tangled. 
> 

That would be a great solution, but it does not work on my system
(8.2.10)

  -k.

Re: control tangling from section header

[Rainer M Krug]

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Ken Mankoff <mankoff@gmail.com> writes:

> On 2015-02-23 at 09:39, Rainer M Krug <Rainer@krugs.de> wrote: 
>>>> I'm working with my literate init file (emacs.org), and would like
>>>> to have certain sections not tangle. I currently do this with
>>>> ":tangle no" at the SRC block level. Is it possible to control
>>>> tangling with tags at the header level? 
>>
>> If I am not mistaken, you can mark the header as COMMENT and no code
>> blocks under this header are tangled. 
>>
>
> That would be a great solution, but it does not work on my system
> (8.2.10)

Just confirmed here - works here:

Org-mode version 8.3beta (release_8.3beta-846-g38ab8b @/Users/rainerkrug/.emacs.d/org-mode/lisp/)

GNU Emacs 24.4.1 (x86_64-apple-darwin14.0.0, Carbon Version 157 AppKit 1343.16) of 2015-02-02 on Rainers-MacBook-Pro-4.local

Cheers,

Rainer

>
>  -k.
>
>

-- 
Rainer M. Krug
email: Rainer<at>krugs<dot>de
PGP: 0x0F52F982

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Re: control tangling from section header

[Ken Mankoff]

On 2015-02-23 at 10:03, Rainer M Krug <Rainer@krugs.de> wrote:
>
> Just confirmed here - works here:
>
> Org-mode version 8.3beta (release_8.3beta-846-g38ab8b 
> @/Users/rainerkrug/.emacs.d/org-mode/lisp/)
>

Yes it does. I've upgraded to 8.3 from git.

Thanks,

  -k.

Re: control tangling from section header

[Rasmus]

Daniele Pizzolli <dan@toel.it> writes:

> Hello Ken,
>
> Ken Mankoff writes:
>
>> I'm working with my literate init file (emacs.org), and would like to
>> have certain sections not tangle. I currently do this with ":tangle no"
>> at the SRC block level. Is it possible to control tangling with tags at
>> the header level?
>
> Not with tag but with PROPERTIES:
>
> * outline header
>   :PROPERTIES:
>   :header-args: :tangle no
>   :END:
>
> More at
> http://orgmode.org/manual/Header-arguments-in-Org-mode-properties.html

This is what I would do as well.

>> It would make it much easier to disable/enable sections, and see what
>> sections are enabled/disabled, if the tangling state were more clearly
>> visible like tags are.
>
> I do not think that this is currently possible.

I haven't tried, but maybe one could use org-babel-pre-tangle-hook or
org-export-before-parsing-hook, depending on the context, to set/update
properties based on tags.  

For an init file the timing might matter.  I don't know how init.org
works, but presumably there's a "ignite.el" that starts the init process
using init.org?

—Rasmus

-- 
Need more coffee. . .