Re: remote execution in heterogeneous environment

[Nick Dokos <nicholas.dokos@hp.com>]

Neil Best <nbest@ci.uchicago.edu> wrote:

> I run Macport's Emacs and ELPA's Org on my Mac but my data lives in a
> Red Hat environment.  I thought I could edit locally and compute
> remotely but there seems to be a problem with temp files for executing
> source blocks.
> 
> #+BEGIN_SRC sh :dir /midway:~ echo "Executed by `whoami` on `hostname`
> in `pwd`" #+END_SRC
> 
> Results are empty and in the message buffers appears this:
> 
> executing Sh code block...  Tramp: Opening connection for midway using
> ssh...
> 
> Opening connection for midway using ssh... \ Tramp: Opening connection
> for midway using ssh...done Tramp: Encoding region using function
> `base64-encode-region'...done Tramp: Decoding region into remote file
> /ssh:midway:/var/folders/2y/qrw3hhkx0dlb9sbl51mjy5wm0000gn/T/sh-510999vN...done
> byte-code: Couldn't write region to
> `/ssh:midway:/var/folders/2y/qrw3hhkx0dlb9sbl51mjy5wm0000gn/T/sh-510999vN',
> decode using `base64 -d -i >%s' failed
> 
> I suspect this has something to do with how Emacs asks OSX for temp
> file names.  Can anyone confirm this?  Is there a work-around?
> 

Not sure about this.

> Ultimately I want to inspect the environment where the remote
> execution is happening.  We use a system called Modules [1] to
> customize $PATH, etc. When I try this:
> 
> #+BEGIN_SRC sh :dir /midway:~ module list #+END_SRC
> 
> I get "sh: line 1: module: command not found" which makes me think
> that the command is running on the local system where Modules is not
> installed.  How does this square with the discussion at [2]?
> 

But here you are probably right: see the thread at

    http://thread.gmane.org/gmane.emacs.orgmode/60102

and particularly this post:

    http://thread.gmane.org/gmane.emacs.orgmode/60102/focus=62587

It might be worth trying the fix in that mail (the funcall part),
although it is known to be incomplete (at the very least: there are a
few more things that seem to go wrong).

Nick

> 
> [1] http://modules.sourceforge.net/
> 
> [2]
> http://lists.gnu.org/archive/html/emacs-orgmode/2010-03/msg00071.html
>