Re: org-file using tramp + babel?

["Charles C. Berry" <ccberry@ucsd.edu>]

On Thu, 14 Jan 2016, John Kitchin wrote:

> Hi, I opened an org file using tramp on a remote server. It opened fine,
> and I had no trouble writing text and saving it. For fun I tried running
> a src block (a shell block that just returned the hostname), and got
> this error:
>
>> %s'...failed
> tramp-file-name-handler: Couldn't write region to
> `/scp:jkitchin@gilgamesh.cheme.cmu.edu:/var/folders/5q/lllv2yf95hg_n6h6kjttbmdw0000gn/T/ob-input-30024dza',
> decode using `base64 -d -i >%s' failed
>
> Should this have worked? It looks like it tried to write a local path
> from my Mac to the server, and that path doesn't exist there.

This works for me from my mac on a remote Centos system.

I think this tripped me up in the past, but my notes do not reveal the fix 
I used.

I think this is a temporary-file-directory issue, but nothing in my init 
pertains to that variable or tramp.

In my emacs-init.org, I do have

#+BEGIN_SRC emacs-lisp
(setq default-directory "/Users/cberry/")
#+END_SRC

and I see a lot of references to this in tramp-compat.el. So, maybe 
setting it is enough to get emacs and/or tramp to use my local client for 
temp files.

In *Messages* I see this after running the src block:

--8<---------------cut here---------------start------------->8---
Evaluate this shell code block on your system? (y or n) y
executing Shell code block...
Tramp: Encoding local file `/var/folders/kb/2hchpbyj7lb6z76l0q73w_fh0000gn/T/tramp.560h4h' using `base64-encode-region'...done
Tramp: Decoding remote file `/scp:<me at remote host>:/tmp/ob-input-560Uub' using `base64 -d -i >%s'...done
Tramp: Encoding local file `/var/folders/kb/2hchpbyj7lb6z76l0q73w_fh0000gn/T/tramp.5607Mu' using `base64-encode-region'...done
Tramp: Decoding remote file `/scp:<me at remote host>:/tmp/ob-error-560uCo' using `base64 -d -i >%s'...done
...<and more cycles like that>
--8<---------------cut here---------------end--------------->8---


and when I issue `C-h v temporary-file-directory RET' in the buffer of the remote file,
I get the same `/var/folders/...' which is what `echo $TMPDIR' shows locally.

HTH,

Chuck