Re: [O] How to end a :session?

[Andreas Leha]

Rainer M Krug <address@hidden> writes:
> Andreas Leha <address@hidden> writes:
>
>> Hi Rainer,
>>
>> Rainer M Krug <address@hidden> writes:
>>> Andreas Leha <address@hidden> writes:
>>>
>>>> Hi Rainer,
>>>
>>> Hi Andreas,
>>>
>>>>
>>>> Rainer M Krug <address@hidden> writes:
>>>>> Christopher Witte <address@hidden> writes:
>>>>>
>>>>>> perhaps what you want is a named session, see
>>>>>> http://orgmode.org/manual/session.html
>>>>>
>>>>> Sure - that's what I have.
>>>>>
>>>>> But how can I close the named session when I don't need it anymore, or
>>>>> want to start, the next time I use the named session, with a new
>>>>> session?
>>>>>
>>>>>
>>>>>>
>>>>>> On 28 May 2015 at 10:44, Rainer M Krug <address@hidden> wrote:
>>>>>>
>>>>>>> Hi
>>>>>>>
>>>>>>> I can start a session as follow:
>>>>>>>
>>>>>>> --8<---------------cut here---------------start------------->8---
>>>>>>> #+begin_src R :session Test
>>>>>>> cat("Session Test\n")
>>>>>>> #+end_src
>>>>>>> --8<---------------cut here---------------end--------------->8---
>>>>>>>
>>>>>>> Now I hava an R session named *Test*. But how can I closes this session?
>>>>>>> I thought about just quitting R
>>>>>>>
>>>>>>> --8<---------------cut here---------------start------------->8---
>>>>>>> #+begin_src R :session Test
>>>>>>> q(save = "no)
>>>>>>> #+end_src
>>>>>>> --8<---------------cut here---------------end--------------->8---
>>>>>>>
>>>>>>> but this does not return as ESS is waiting for the prompt (">").
>>>>>>>
>>>>>>> Is there a way of closing the session *Test* and close the buffer?
>>>>>>>
>>>>>>> My reasoning is that I want to do different longer analysis in one org
>>>>>>> file and start each in its own session, i.e. clean R. But as they
>>>>>>> involve several steps, I don't want to put them into one code block.
>>>>>>>
>>>>>>> So I have several code blocks which I want to execute in a "throw away
>>>>>>> session" which I would like to discard afterwards.
>>>>>>>
>>>>>>> So I am looking for something like
>>>>>>>
>>>>>>> #+CLOSE_SESSION Test
>>>>>>>
>>>>>>> which would then close the session *Test*
>>>>>>>
>>>>>>> Is something like this possible at the moment?
>>>>>>>
>>>>
>>>> How about
>>>>
>>>> #+name: killRsession
>>>> #+begin_src emacs-lisp :var rsession="*myR*" :results none
>>>> (progn
>>>>   (switch-to-buffer rsession)
>>>>   (ess-quit)
>>>>   (sleep-for 1)
>>>>   (kill-buffer))
>>>> #+end_src
>>>>
>>>>
>>>> #+call: killRsession("*myR*") :results none
>>>
>>> Thanks - this works. But I get an error which says:
>>>
>>> ,----
>>> | save-excursion: Wrong type argument: integer-or-marker-p, nil
>>> `----
>>>
>>> Any suggestion on how to avoid this?
>>>
>>
>> I do not see that error, so hard to say.  Do you have a backtrace?  Wild
>> guess: Maybe the ess-quit changed?  What version of ess are you using?
>
> ess-15.03
>

I am on ess-15.09-devel.

>>
>> Note, that this could be improved by replacing the (sleep-for 1) with
>> something that actually waits until R has quit...
>
> I can live with the error for now, but I might look into it some time
> later.
>

Fine.

Andreas