I use babel mostly for shell scripts. I wrote a patch to allow toggling the
handling of errors & std err. I prefer standard error just get printed with
everything else, the same as calling a script from a terminal. Doing this
properly
with header arguments etc. has been discussed before (google org-babel stderr),
and just hasn't gotten done yet. Until then, this works great, so I'm putting it
out there in case anyone wants to use it.
---
lisp/ob-eval.el | 18 ++++++++++++++----
1 file changed, 14 insertions(+), 4 deletions(-)
diff --git a/lisp/ob-eval.el b/lisp/ob-eval.el
index 057590f..fdc6da5 100644
--- a/lisp/ob-eval.el
+++ b/lisp/ob-eval.el
@@ -31,6 +31,14 @@
(eval-when-compile (require 'cl))
(defvar org-babel-error-buffer-name "*Org-Babel Error Output*")
+(defcustom org-babel-use-error-buffer t
+ "When evaluating a code block, if nil and an error is returned
+,no error buffer is created and. Standard error
+is redirected to standard out."
+:group 'org-babel
+:version "24.1"
+:type 'boolean)
+
(declare-function org-babel-temp-file "ob-core" (prefix &optional suffix))
(defun org-babel-eval-error-notify (exit-code stderr)
@@ -46,14 +54,16 @@
"Run CMD on BODY.
If CMD succeeds then return its results, otherwise display
STDERR with `org-babel-eval-error-notify'."
- (let ((err-buff (get-buffer-create " *Org-Babel Error*")) exit-code)
- (with-current-buffer err-buff (erase-buffer))
+ (let ((err-buff (if org-babel-use-error-buffer
+ (get-buffer-create " *Org-Babel Error*")))
+ exit-code)
+ (if err-buff (with-current-buffer err-buff (erase-buffer)))
(with-temp-buffer
(insert body)
(setq exit-code
(org-babel--shell-command-on-region
(point-min) (point-max) cmd err-buff))
- (if (or (not (numberp exit-code)) (> exit-code 0))
+ (if (and err-buff (or (not (numberp exit-code)) (> exit-code 0)))
(progn
(with-current-buffer err-buff
(org-babel-eval-error-notify exit-code (buffer-string)))
@@ -90,7 +100,7 @@ function in various versions of Emacs.
;; This is fixed in Emacs trunk as of 2012-12-21; let's use this
;; workaround for now.
(unless (file-remote-p default-directory)
- (delete-file error-file))
+ (if error-file (delete-file error-file)))
;; we always call this with 'replace, remove conditional
;; Replace specified region with output from command.
(let ((swap (< start end)))
--
1.7.10.4
