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lib/options: add literalExpression and literalDocBook, deprecate literalExample

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This commit is contained in:
Naïm Favier 2021-10-03 17:19:19 +02:00
parent c3bf08d1b0
commit 52a2e4136e
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2 changed files with 21 additions and 7 deletions
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4
lib/default.nix
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@ -123,8 +123,8 @@ let
inherit (self.options) isOption mkEnableOption mkSinkUndeclaredOptions
mergeDefaultOption mergeOneOption mergeEqualOption getValues
getFiles optionAttrSetToDocList optionAttrSetToDocList'
scrubOptionValue literalExample showOption showFiles
unknownModule mkOption;
scrubOptionValue literalExpression literalExample literalDocBook
showOption showFiles unknownModule mkOption;
inherit (self.types) isType setType defaultTypeMerge defaultFunctor
isOptionType mkOptionType;
inherit (self.asserts)

24
lib/options.nix
View File

@ -54,7 +54,7 @@ rec {
Example:
mkOption { } // => { _type = "option"; }
mkOption { defaultText = "foo"; } // => { _type = "option"; defaultText = "foo"; }
mkOption { default = "foo"; } // => { _type = "option"; default = "foo"; }
*/
mkOption =
{
@ -212,11 +212,25 @@ rec {
else x;
/* For use in the `example` option attribute. It causes the given
text to be included verbatim in documentation. This is necessary
for example values that are not simple values, e.g., functions.
/* For use in the `defaultText` and `example` option attributes. Causes the
given string to be rendered verbatim in the documentation as Nix code. This
is necessary for complex values, e.g. functions, or values that depend on
other values or packages.
*/
literalExample = text: { _type = "literalExample"; inherit text; };
literalExpression = text:
if ! isString text then throw "literalExpression expects a string."
else { _type = "literalExpression"; inherit text; };
literalExample = lib.warn "literalExample is deprecated, use literalExpression instead, or use literalDocBook for a non-Nix description." literalExpression;
/* For use in the `defaultText` and `example` option attributes. Causes the
given DocBook text to be inserted verbatim in the documentation, for when
a `literalExpression` would be too hard to read.
*/
literalDocBook = text:
if ! isString text then throw "literalDocBook expects a string."
else { _type = "literalDocBook"; inherit text; };
# Helper functions.