* lisp/ob-R.el (org-babel-R-initiate-session): handle case where the session buffer exists, but does not have a live process
If the session buffer exists, but the user has exited the R process manually, then the (R) command will create a new buffer, then try to rename it over the old buffer, causing an error. The right thing to do is to start R within the existing buffer. --- lisp/ob-R.el | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/lisp/ob-R.el b/lisp/ob-R.el index 9875f81..de9ec5b 100644 --- a/lisp/ob-R.el +++ b/lisp/ob-R.el @@ -209,14 +209,18 @@ This function is called by `org-babel-execute-src-block'." (if (org-babel-comint-buffer-livep session) session (save-window-excursion - (require 'ess) (R) - (rename-buffer - (if (bufferp session) - (buffer-name session) - (if (stringp session) - session - (buffer-name)))) - (current-buffer)))))) + (save-excursion + (when (get-buffer session) + ;; Session buffer exists, but with dead process + (set-buffer session)) + (require 'ess) (R) + (rename-buffer + (if (bufferp session) + (buffer-name session) + (if (stringp session) + session + (buffer-name)))) + (current-buffer))))))) (defun org-babel-R-associate-session (session) "Associate R code buffer with an R session. -- 1.8.2