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Improve description of 'extraPackages' option

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Thomas Schwanberger 2024-06-03 00:19:46 +02:00
parent 4715b1e127
commit cdd7af00b8
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@ -100,12 +100,25 @@ in {
type = hm.types.selectorFunction; type = hm.types.selectorFunction;
defaultText = "epkgs: [ ]"; defaultText = "epkgs: [ ]";
example = literalExpression example = literalExpression
"epkgs: [ epkgs.vterm epkgs.treesit-grammars.with-all-grammars ]"; "epkgs: [ epkgs.treesit-grammars.with-all-grammars ]";
description = '' description = ''
Extra packages available to Doom Emacs. Extra Emacs packages from nixpkgs available to Doom Emacs,
To let nix handle a doom dependency '(package! ...)' we can leverage the ':built-in t' argument unless that packages is handled by Doom Emacs.
Consider the following example for 'vterm' in the doom config packages.el:
(package! vterm :built-in t) If Doom Emacs specifies a package,
then that specific package and version will be exactly as Doom specifies even if it's
included in 'extraPackages'.
To use 'extraPackages' to override a specific package otherwise specified by Doom Emacs,
it is required that the Doom Emacs config use the following arguments for the package:
'(package! ... :built-in t)'
This allows nix to be used to apply patches to an Emacs package.
Some Emacs packages from nixpkgs have additional side-effects specific to nix,
consider the Emacs Package 'treesit-grammars.with-all-grammars'.
It downloads all treesitter grammars defined in nixpkgs at build time and makes them
available on path for Emacs at runtime.
Doom cannot specify that package using the '(package! ...)' syntax.
''; '';
}; };
}; };