- (let ((params (org-babel-process-params
- (org-babel-merge-params
- org-babel-default-header-args
- (org-babel-params-from-buffer)
- (org-babel-params-from-properties)
- (org-babel-parse-header-arguments
- (org-babel-clean-text-properties
- (concat ":var results="
- (mapconcat #'identity (butlast info) " "))))))))
- (org-babel-execute-src-block
- nil (list "emacs-lisp" "results" params nil nil (nth 2 info)))))
+ (let* ((mkinfo (lambda (p) (list "emacs-lisp" "results" p nil nil (nth 2 info))))
+ (pre-params (org-babel-merge-params
+ org-babel-default-header-args
+ (org-babel-params-from-properties)
+ (org-babel-parse-header-arguments
+ (org-no-properties
+ (concat ":var results="
+ (mapconcat #'identity (butlast info) " "))))))
+ (pre-info (funcall mkinfo pre-params))
+ (cache? (and (cdr (assoc :cache pre-params))
+ (string= "yes" (cdr (assoc :cache pre-params)))))
+ (new-hash (when cache? (org-babel-sha1-hash pre-info)))
+ (old-hash (when cache? (org-babel-current-result-hash))))
+ (if (and cache? (equal new-hash old-hash))
+ (save-excursion (goto-char (org-babel-where-is-src-block-result))
+ (forward-line 1)
+ (message "%S" (org-babel-read-result)))
+ (prog1 (org-babel-execute-src-block
+ nil (funcall mkinfo (org-babel-process-params pre-params)))
+ ;; update the hash
+ (when new-hash (org-babel-set-current-result-hash new-hash))))))