I just realized my patch had an issue where it freezes if there is an
error in the source block.
I'm attaching a second patch, to be applied on top of the first one, that fixes
the issue.
diff --git a/lisp/ob-R.el b/lisp/ob-R.el
index b37e3965a..5ddf0ebd1 100644
--- a/lisp/ob-R.el
+++ b/lisp/ob-R.el
@@ -441,7 +441,7 @@ (defun org-babel-R-evaluate-session
(output
(let* ((tmp-file (org-babel-temp-file "R-")))
(with-temp-file tmp-file
- (insert (concat body "\n" org-babel-R-eoe-indicator)))
+ (insert body))
(with-current-buffer session
(let* ((process (get-buffer-process (current-buffer)))
(string-buffer "")
@@ -450,8 +450,9 @@ (defun org-babel-R-evaluate-session
(concat string-buffer text)))
comint-output-filter-functions)))
(ess-send-string
- process (format "source('%s', print.eval=TRUE)"
- (org-babel-process-file-name tmp-file 'noquote)))
+ process (format "tryCatch(source('%s', print.eval=TRUE), finally=print(%s))"
+ (org-babel-process-file-name tmp-file 'noquote)
+ org-babel-R-eoe-indicator))
(while (not (string-match (regexp-quote org-babel-R-eoe-output)
string-buffer))
(accept-process-output process))
