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Fix sh block execution in session

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Hi,

When evaluating shell code blocks in org-babel, the execution seems to hang
indefinitely. The following patch is trying to fix this problem by modifying
the way shell code is send to comint and the way the end-of-evaluation
indicator is looking for.

As I am far from an emacs lisp expert and as the patch modifies the widely use
org-babel-comint-with-output function, it certainly needs some testing. I've
made some tests with shell and R code blocks, but I'm not sure it's enough.

Thanks !

Julien

Fix sh block execution in a session

* lisp/ob-sh.el (org-babel-sh-evaluate) : when sending input to comint, wait
until previous line execution is finished
* lisp/ob-comint.el (org-babel-comint-with-output) : when looking for
end-of-evaluation indicator, search forward for the indicator before searching
forward for the prompt
This commit is contained in:
Julien Barnier 2011-06-03 14:26:48 +00:00 committed by Eric Schulte
parent 648affcbd4
commit c227da352a
2 changed files with 9 additions and 3 deletions
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4
lisp/ob-comint.el
View file

@ -93,9 +93,9 @@ or user `keyboard-quit' during execution of body."
(goto-char comint-last-input-end)
(not (save-excursion
(and (re-search-forward
comint-prompt-regexp nil t)
(regexp-quote ,eoe-indicator) nil t)
(re-search-forward
(regexp-quote ,eoe-indicator) nil t)))))
comint-prompt-regexp nil t)))))
(accept-process-output (get-buffer-process (current-buffer)))
;; thought the following this would allow async
;; background running, but I was wrong...

8
lisp/ob-sh.el
View file

@ -170,7 +170,13 @@ return the value of the last statement in BODY."
(session org-babel-sh-eoe-output t body)
(mapc
(lambda (line)
(insert line) (comint-send-input nil t) (sleep-for 0.25))
(insert line)
(comint-send-input nil t)
(while (save-excursion
(goto-char comint-last-input-end)
(not (re-search-forward
comint-prompt-regexp nil t)))
(accept-process-output (get-buffer-process (current-buffer)))))
(append
(split-string (org-babel-trim body) "\n")
(list org-babel-sh-eoe-indicator))))