From: CS Suehs <skelter.net@gmail.com>
To: Nick Daly <nick+orgmode@despisinggravity.com>
Cc: emacs-orgmode@gnu.org
Subject: Re: plantuml, png and caching
Date: Thu, 15 Apr 2021 12:46:53 -0500 [thread overview]
Message-ID: <CAJbc-DLwrqNQzVXUDjzBGW9kfJ+bdJFQ1fJmd4Ryb2neTt=jzQ@mail.gmail.com> (raw)
In-Reply-To: <87a6q12019.fsf@europa>
Nick,
I had the :cache yes on the same line with #+BEGIN like
#+BEGIN_SRC plantuml :file helloworld.png :cache yes
When I change to your method, caching seems to work.
It looks like setting it as a section property also works.
Thank you.
Should I expect the setting on the BEGIN_SRC line to work?
On Tue, Apr 13, 2021 at 7:16 PM Nick Daly
<nick+orgmode@despisinggravity.com> wrote:
>
> CS Suehs <skelter.net@gmail.com> writes:
>
> > Should I expect PlantUML source blocks and their resulting images to
> > be cached and respect `:cache true` ?
>
> Yes.
>
> > In my experience they regenerate every export, even with :cache true.
>
> Can you provide an example?
>
> This example caches correctly for me on v9.1.14.
>
> #+name: helloworld
> #+header: :cache yes
> #+BEGIN_SRC plantuml :file helloworld.png
> @startuml
> Hello --> World
> @enduml
> #+END_SRC
>
> #+RESULTS[f29ead8751dde1b4c4ee1b8fcb97e133c75eed0d]: helloworld
> [[file:helloworld.png]]
>
> The only time I've seen caching break is if the diagram imports an
> external file. In that case, the diagram doesn't regenerate often
> enough, because org doesn't notice that the external file changed. The
> fix to that is to include the hash of the external file as a dependent
> var.
>
> #+name: md5
> #+BEGIN_SRC shell :cache no :var afile="PLACEHOLDER"
> md5sum $afile
> #+END_SRC
>
> #+name: cache-correctly
> #+header: :var md5input=md5("data.txt")
> #+BEGIN_SRC R :exports results :results output graphics :file data.svg
> aData <- read.csv("data.txt")
> ggplot(data = aData,
> mapping = aes(x = aData$id, y = aData$value))
> #+END_SRC
>
> Thanks,
> Nick
next prev parent reply other threads:[~2021-04-15 17:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-13 21:54 plantuml, png and caching CS Suehs
2021-04-14 0:16 ` Nick Daly
2021-04-15 17:46 ` CS Suehs [this message]
2021-04-15 18:33 ` George Mauer
2021-04-18 18:10 ` Nick Daly
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