org-unique-id/README.org

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#+title: org-unique-id
#+author: Lucien Cartier-Tilet
#+email: lucien@phundrak.com
[[https://github.com/Phundrak/org-unique-id/actions/workflows/workflow.yml][file:https://github.com/Phundrak/org-unique-id/actions/workflows/workflow.yml/badge.svg]]
* Introduction
~org-unique-id~ is a utility package for org users that are tired
dealing with random org IDs for their headers that change on each org
to HTML export (and other kinds of exports). This package creates
meaningful custom IDs for org headers that wont change unless the
user modifies them manually.
* Table of Contents :TOC_2_gh:
- [[#introduction][Introduction]]
- [[#installation][Installation]]
- [[#usage][Usage]]
- [[#contributing][Contributing]]
- [[#license][License]]
* Installation
This package can be installed like any other simple package. Your
first option is to download ~org-unique-id~ or clone this package in
your ~load-path~ and add the following to your configuration:
#+begin_src emacs-lisp
(require 'org-unique-id)
(add-hook 'before-save-hook #'org-unique-id-maybe)
#+end_src
You can also use a package manager such as Quelpa or Straight in order
to load automatically your package. In my case, I prefer the latter
with its ~use-package~ integration:
#+begin_src emacs-lisp
(use-package org-unique-id
:require t
:after org
:straight (org-unique-id :type git
:host github
:repo "Phundrak/org-unique-id")
:init (add-hook 'before-save-hook #'org-unique-id-maybe))
#+end_src
I personally add ~:build t~ to my straight recipe to ensure my package is compiled.
If you know how to handle this with a pure Straight recipe, or with a
Quelpa recipe, dont hesitate to submit a PR to add it to this README!
* Usage
While ~org-unique-id~ may be installed on your Emacs instance, it is not
active by default. This is because it can take some time to generate
all the required IDs in your org file which may hang your Emacs
instance for a bit. Therefore, automatic IDs are enabled on a per-file
basis with the option ~auto-id~.
Here is an example of an org buffer with ~org-unique-id~ enabled:
#+begin_src org
,#+title: Test file
,#+options: auto-id:t
,* Test level 1
:PROPERTIES:
:CUSTOM_ID: Test-level-1-zmb40t305kj0
:END:
,** Test level 2
:PROPERTIES:
:CUSTOM_ID: Test-level-1-Test-level-2-spn40t305kj0
:END:
,* Test level 1
:PROPERTIES:
:CUSTOM_ID: Test-level-1-1nx40t305kj0
:END:
#+end_src
The ~CUSTOM_ID~ properties are generated on save and only once. Once the
~CUSTOM_ID~ of a heading is set, the package will not modify it even if
the name of the heading itself is modified. To regenerate it, delete
the ~CUSTOM_ID~ and let ~org-unique-id~ regenerate it. If you dont like
the ~CUSTOM_ID~ generated by ~org-unique-id~, you can overwrite it
yourself and ~org-unique-id~ will not modify it.
Note that ~auto-id:t~ is absolutely required in order to get these
~CUSTOM_ID~. Here is the same buffer after save without this option:
#+begin_src org
,#+title: Test file
,* Test level 1
,** Test level 2
,* Test level 1
#+end_src
It is also possible to manually call ~org-unique-id~ (interactively or
not) on the current buffer. This will not check the value of the
~auto-id~ option.
* Contributing
See [[file:CONTRIBUTING.org]].
* License
~org-unique-id~ is available under the GNU GPL-3.0 license. You can find
the full text in [[file:LICENSE.md][LICENSE.md]].