Re: Erroneous "No such file or directory" with babel and remote dir

["Loris Bennett" <loris.bennett@fu-berlin.de>]

Achim Gratz <Stromeko@nexgo.de> writes:

> Loris Bennett writes:
>> OK, I must have goofed.  What I did after starting the bisection was
>>
>> - run 'make autoload'
>> - open test file in emacs with minimal .emacs
>> - test
>> - end emacs
>> - mark bisection good or bad
>>
>> I then repeated this for the next commit.
>
> This would be the correct thing to do, yes.
>
>> Is something missing here, or did I just incorrectly mark a commit?
>
> I really don't know, I'm just guessing… :-)
>
> It may be more informative if you traced the invocation of the remote
> execution in both a failing and a working version in the debugger and
> look for any differences as the arguments are cobbled together.  Once
> you find where an how these diverge it would be much easier to find the
> code that is responsible for it (if it wasn't glaringly obvious from the
> trace already).
>
>
> Regards,
> Achim.

[Sorry if this appears twice - Gnus got the better of me]

So just as a reminder:

Back in the days of release_7.01h, the following used to work:

,------------------------------------------
| #+begin_src sh :dir /loris@othercomputer:
| hostname
| #+end_src
`------------------------------------------

Currently it produces the error:

,---------------------------------------------------
| apply: Wrong type argument: number-or-marker-p, ""
`---------------------------------------------------

I have had another go at bisecting this problem and came up with this:

,-------------------------------------------------------------------------------------------------------------
| 9c878a8290c071fbe5e97bc33c300ef2f07d6153 is the first bad commit
| commit 9c878a8290c071fbe5e97bc33c300ef2f07d6153
| Author: Dan Davison <davison@stats.ox.ac.uk>
| Date:   Mon Aug 30 09:34:05 2010 -0700
| 
|     babel: Fix temporary file processing in the remote execution case.
|     
|         * ob.el (org-babel-temp-file): Don't use babel temporary
|         directory in remote case; use make-temp-file with remote file
|         name so that temp file is guaranteed not to exist previously
|         on remote machine.
|         (org-babel-tramp-localname): New function to return local name
|         portion of possibly remote file specification
|     
|         * ob-R.el (org-babel-R-evaluate-external-process): Respond to
|         changes in `org-babel-temp-file'; pass local file name to
|         remote R process.
|         (org-babel-R-evaluate-session) Respond to
|         changes in `org-babel-temp-file'; pass local file name to
|         remote R process.
| 
| :040000 040000 b31e072cf6b2951e95b7956d907303e7a04a8cfd 5f794ada52cceb0614fe7962a399f7e549759003 M      lisp
`-------------------------------------------------------------------------------------------------------------

Does that help anyone any further?

Cheers,

Loris

PS: I am amazed there aren't any more peasants like myself with torches
and pitchforks beating on the gates of Castle Org about this - remote
execution is/was such great feature!
Dr. Loris Bennett (Mr.)
ZEDAT, Freie Universität Berlin         Email loris.bennett@fu-berlin.de