Re: Move or rename a file in a link

[João Pedro de Amorim Paula]

On 19 March 2022 11:25, Juan Manuel Macías <maciaschain@posteo.net> wrote:

> #+begin_src emacs-lisp
>   (defun my-org-rename-link-file-at-point ()
>     (interactive)
>     (let* ((curr-dir (if (equal (org-element-property :type 
> (org-element-context)) "attachment")
>                        (concat (abbreviate-file-name (org-attach-dir)) "/")
>                      (abbreviate-file-name default-directory)))
>          (current-path (if (equal (org-element-property :type 
> (org-element-context)) "attachment")
>                            (concat curr-dir (org-element-property :path 
> (org-element-context)))
>                          (org-element-property :path (org-element-context))))
>          (new-path (read-file-name "Rename file at point to: " current-path)))
>       (rename-file current-path new-path)
>       (message (concat "moved to: " new-path))
>       (if (directory-name-p new-path)
>         (setq new-path (concat new-path (file-name-nondirectory 
> current-path)))
>       (setq new-path new-path))
>       (if (equal (org-element-property :type (org-element-context)) 
> "attachment")
>         (my-org-replace-link-file (file-name-nondirectory current-path)
>                                   (replace-regexp-in-string
>                                    curr-dir "" new-path))
>       (my-org-replace-link-file current-path
>                                 (replace-regexp-in-string
>                                  curr-dir "" new-path)))))
>
>   (defun my-org-replace-link-file (from to)
>     (save-excursion
>       (goto-char (point-min))
>       (while (re-search-forward org-bracket-link-regexp nil t)
>       (cond ((string-match-p (concat "attachment:" from) (match-string 1))
>              (replace-match (concat "[[attachment:" to "]]")))
>             ((string-match-p from (match-string 1))
>              (replace-match (concat "[[file:" to "]]")))))))
> #+end_src

Just a couple of fixes and it seems to be working fine.

diff -u a/org-rename-link.el b/org-rename-link.el

--- a/org-rename-link.el        2022-03-22 12:08:45.790727092 -0300
+++ b/org-rename-link.el        2022-03-22 12:25:31.500218923 -0300
@@ -23,8 +23,11 @@
 (defun my-org-replace-link-file (from to)
   (save-excursion
     (goto-char (point-min))
-    (while (re-search-forward org-bracket-link-regexp nil t)
-      (cond ((string-match-p (concat "attachment:" from) (match-string 1))
-             (replace-match (concat "[[attachment:" to "]]")))
-            ((string-match-p from (match-string 1))
-             (replace-match (concat "[[file:" to "]]")))))))
+    (while (re-search-forward org-link-bracket-re nil t)
+      (replace-match
+       (cond
+        ((string-match-p (format "^attachment:%s\\'" from) (match-string 1))
+         (format "attachment:%s" (file-name-nondirectory to)))
+        ((string-match-p (format "^file.*:%s\\'" from) (match-string 1))
+         (format "file:%s" to)))
+       nil nil nil 1))))

Diff finished.  Tue Mar 22 12:26:56 2022

All this patch does is to remove the directory name from the
=attachment:file.ext= -- given that the path is calculated by org-attach
--, and use the group 1 of the match string (as well as updating the use
of an obsolete variable), which corresponds to the actual link portion,
leaving the description unchanged.

Cordially,

-- 
João Pedro de A. Paula
IT undergraduate at Universidade Federal do Rio Grande do Norte (UFRN)