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org-id: New customization, org-id-locations-file-relative

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* org-id-locations-file-relative

New customization that allows the user to specify that filenames
should be saved relative to the file specified in
org-id-locations-file, instead of being absolute paths.

* org-id-locations-save

Respects new custom variable, org-id-locations-file-relative, and
can save locations with relative filenames.

* org-id-locations-load

Updated to be able to deal with relative filenames if they exist.
This commit is contained in:
Gustav Wikström 2019-08-01 23:00:19 +02:00
parent 9865e6bd8b
commit 9104c0c52d
2 changed files with 37 additions and 1 deletions
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5
etc/ORG-NEWS
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@ -387,6 +387,11 @@ separator using ~org-agenda-breadcrumbs-separator~.
This variable makes it possible to customize the list of commands for
the attachment dispatcher.
*** New customization: ~org-id-locations-relative~
New customization to make the persisting of org-id-locations between
sessions to store links to files as relative instead of absolute. The
links will be stored as relative to the path of org-id-locations-file.
*** ~org-ctrl-c-tab~ is functional before the first headline
I.e. treat the whole file as if it was a subtree.

33
lisp/org-id.el
View File

@ -191,6 +191,22 @@ This variable is only relevant when `org-id-track-globally' is set."
:group 'org-id
:type 'file)
(defcustom org-id-locations-file-relative nil
"Determines if org-id-locations should be stored as relative links.
Non-nil means that links to locations are stored as links
relative to the location of where `org-id-locations-file' is
stored.
Nil means to store absolute paths to files.
This customization is useful when folders are shared across
systems but mounted at different roots. Relative path to
`org-id-locations-file' still has to be maintained across
systems."
:group 'org-id
:type 'boolean
:package-version '(Org . "9.3"))
(defvar org-id-locations nil
"List of files with IDs in those files.")
@ -504,6 +520,16 @@ When FILES is given, scan also these files."
(let ((out (if (hash-table-p org-id-locations)
(org-id-hash-to-alist org-id-locations)
org-id-locations)))
(when (and org-id-locations-file-relative out)
(setq out (mapcar
(lambda (item)
(if (file-name-absolute-p (car item))
(cons (file-relative-name
(car item) (file-name-directory
org-id-locations-file))
(cdr item))
item))
out)))
(with-temp-file org-id-locations-file
(let ((print-level nil)
(print-length nil))
@ -517,7 +543,12 @@ When FILES is given, scan also these files."
(condition-case nil
(progn
(insert-file-contents org-id-locations-file)
(setq org-id-locations (read (current-buffer))))
(setq org-id-locations (read (current-buffer)))
(let ((loc (file-name-directory org-id-locations-file)))
(mapc (lambda (item)
(unless (file-name-absolute-p (car item))
(setf (car item) (expand-file-name (car item) loc))))
org-id-locations)))
(error
(message "Could not read org-id-values from %s. Setting it to nil."
org-id-locations-file))))