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config/literate

Table of Contents

Description

This module enables support for a literate config.

A literate config consists of a DOOMDIR/config.org. All src blocks within are tangled DOOMDIR/config.el, by default, when doom sync is executed.

Maintainers

This module has no dedicated maintainers.

Module Flags

This module provides no flags.

Plugins

This module installs no plugins.

Prerequisites

This module has no prerequisites.

Features

  • Automatically tangles config.org to config.el when saving. See Troubleshooting section belong on how to disable it.

Configuration

Change the location of config.org

The +literate-config-file variable controls where to look for your config.org. To change this it must be modified early – in DOOMDIR/init.el or DOOMDIR/cli.el.

Source blocks needs to be in some language to be automatically tangled, for example #+BEGIN_SRC elisp, but it doesn’t matter what language is used. All blocks are tangled to config.el, but elisp gives correct syntax highlighting. If you don’t want to specify language in block you can also enforce tangling by adding #+BEGIN_SRC :tangle yes

Change where src blocks are tangled or prevent it entirely

By default, this module tangles all src emacs-lisp blocks to config.el unless otherwise specified.

To specify otherwise use the :tangle parameter to:

  • Specify a destination other than config.el: :tangle packages.el
  • Disable tangling of the block altogether with :tangle no
  • Or force non-elisp src blocks to tangle somewhere

For example:

#+BEGIN_SRC elisp :tangle no
(message "Don't tangle me")
#+END_SRC

#+BEGIN_SRC elisp :tangle packages.el
(package! my-package)
(package! other-package)
#+END_SRC

#+BEGIN_SRC sh :tangle ~/.dotfiles/bin/script.sh :tangle-mode (identity #o755)
#!/usr/bin/env bash
echo Hello world
#+END_SRC

#+BEGIN_SRC sh :tangle ~/.dotfiles/bin/script.sh :shebang "#!/usr/bin/env bash"
echo Hello world
#+END_SRC

You’ll find more information about babel src blocks and what parameters they support in the manual.

Troubleshooting

How to tangle to DOOMDIR/init.el

If your literate needs are more complex (e.g. you want to make your init.el literate), this module won’t cut it. init.el is loaded long before config.org is tangled in the doom sync process.

However, Doom comes with a bin/org-tangle script which can be used to tangle arbitrary org files from the command line. Use it to create your own compilation workflows. This is much faster than using org-babel-load-file directly to load your literate config every time Doom is started.

How to disable tangle-on-save

There are occasions where tangling on save may be undesirable. Maybe it’s too slow, produces too much noise, or happens too often (on unrelated org files in your DOOMDIR). This behavior can be disabled with:

;; add to DOOMDIR/config.el
(remove-hook 'org-mode-hook #'+literate-enable-recompile-h)