Re: Get =#+RESULTS= without re-evaluating source code block?

[<tomas@tuxteam.de>]

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On Wed, Jan 27, 2021 at 05:14:43PM -0500, doltes wrote:
> Get =#+RESULTS= without re-evaluating source code block?
> 
> Let's suppose I have a code block which requires a long time to finish
> 
> #+NAME: big-computation
> #+begin_src bash
> sleep 5 # Some computation which requires a long time to complete.
> echo a
> #+end_src
> 
> #+RESULTS: big-computation
> #+begin_example
> a
> #+end_example
> 
> I want to use the results of that code block in other code blocks so I
> use a =noweb= reference (see below.)
> 
> #+begin_src bash :noweb yes
> printf "%s\n" <<big-computation()>>
> #+end_src
> 
> #+RESULTS:
> #+begin_example
> a
> 
> #+end_example
> 
> However, doing this (i.e. using a =noweb= reference) would make the
> command to be evaluated whenever getting its results. I don't want
> this, I want the =:noweb= reference to actually use the already
> computed results.
> 
> So, my question is: Is it possible to use the actual =#+RESULTS= code
> block instead of always evaluating it when referencing the results
> through a =:noweb= reference?

Perhaps "Cache results of evaluation" (15.5 Evaluating Code Blocks,
in the Interwebs here [1] is for you.

In short, add a header argument :cache yes to your code block.

Cheers

[1] https://orgmode.org/org.html#Evaluating-Code-Blocks

 - t

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