Re: [O] Set or update timestamp after evaluation of code block?

[John Kitchin]

so picky ;) Maybe something like this will put that stamp in a comment
that won't export.

#+BEGIN_SRC emacs-lisp
(defun j-add-ts ()
  (save-excursion
    (re-search-forward "#\\+END_SRC")
    (forward-line)
    (beginning-of-line)
    (when (looking-at "# Last run:")
      (kill-line))
    (insert (concat
             "# Last run: "
             (format-time-string "[%Y-%m-%d %a %H:%M:%S]" (current-time))))))


(add-hook 'org-babel-after-execute-hook
          'j-add-ts)

;(remove-hook 'org-babel-after-execute-hook
;         'j-add-ts)
#+END_SRC


Rainer M Krug writes:

> John Kitchin <address@hidden> writes:
>
>> Here is one approach:
>>
>> #+name: update-timestamp
>> #+BEGIN_SRC emacs-lisp :var data=""
>> (concat
>>  "Last run: "
>>  (format-time-string "[%Y-%m-%d %a %H:%M:%S]" (current-time))
>>  "\n" data)
>> #+END_SRC
>>
>>
>> #+BEGIN_SRC python :post update-timestamp(data=*this*)
>> print('hello')
>> #+END_SRC
>>
>> #+RESULTS:
>> : Last run: [2015-09-21 Mon 11:09:18]
>> : hello
>
> Thanks John - that looks nice and I like the idea of using
> (current-time) and the possibility to format the time string, but this
> info will be part of the export - and I only would like tho have the
> info in the org file and not in the exported document.
>
>
> Rainer
>
>>
>>
>>
>> Rainer M Krug writes:
>>
>>> Eric S Fraga <address@hidden> writes:
>>>
>>>> On Monday, 21 Sep 2015 at 14:46, Rainer M Krug wrote:
>>>>
>>>> [...]
>>>>
>>>>> Is it possible to set a timestamp (ur update it when it exists already)
>>>>> when a code block has been evaluated, so that I have e record when it
>>>>> was updated?
>>>>
>>>> Could you make use of the :post header argument to invoke emacs lisp and
>>>> execute org-time-stamp-inactive in some way?
>>>
>>> Thanks - sounds possible? But if I just use
>>>
>>> ,----
>>> | :post (org-time-stamp-inactive)
>>> `----
>>>
>>> 1) an input is required and
>>> 2) the time stamp is inserted before the #+begin_src and makes the block
>>> invalid.
>>>
>>> How can I put the time stamp in the line after the #+end_src or possibly
>>> even in the same line, as this does not seem to have an impact on the
>>> source block?
>>>
>>> Thanks,
>>>
>>> Rainer
>>
>> --
>> Professor John Kitchin
>> Doherty Hall A207F
>> Department of Chemical Engineering
>> Carnegie Mellon University
>> Pittsburgh, PA 15213
>> 412-268-7803
>> @johnkitchin
>> http://kitchingroup.cheme.cmu.edu

--
Professor John Kitchin
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
412-268-7803
@johnkitchin
http://kitchingroup.cheme.cmu.edu