68 lines
2.4 KiB
Nix
68 lines
2.4 KiB
Nix
let
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inherit (builtins) attrValues concatStringsSep isAttrs isBool mapAttrs;
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inherit (import <nix/utils.nix>) concatStrings indent optionalString squash;
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in
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# `inlineHTML` is a hack to accommodate inconsistent output from `lowdown`
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{ prefix, inlineHTML ? true }: settingsInfo:
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let
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showSetting = prefix: setting: { description, documentDefault, defaultValue, aliases, value, experimentalFeature }:
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let
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result = squash ''
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- ${item}
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${indent " " body}
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'';
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item = if inlineHTML
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then ''<span id="${prefix}-${setting}">[`${setting}`](#${prefix}-${setting})</span>''
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else "`${setting}`";
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# separate body to cleanly handle indentation
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body = ''
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${experimentalFeatureNote}
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${description}
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**Default:** ${showDefault documentDefault defaultValue}
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${showAliases aliases}
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'';
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experimentalFeatureNote = optionalString (experimentalFeature != null) ''
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> **Warning**
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>
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> This setting is part of an
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> [experimental feature](@docroot@/contributing/experimental-features.md).
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>
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> To change this setting, make sure the
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> [`${experimentalFeature}` experimental feature](@docroot@/contributing/experimental-features.md#xp-feature-${experimentalFeature})
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> is enabled.
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> For example, include the following in [`nix.conf`](@docroot@/command-ref/conf-file.md):
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>
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> ```
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> extra-experimental-features = ${experimentalFeature}
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> ${setting} = ...
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> ```
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'';
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showDefault = documentDefault: defaultValue:
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if documentDefault then
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# a StringMap value type is specified as a string, but
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# this shows the value type. The empty stringmap is `null` in
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# JSON, but that converts to `{ }` here.
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if defaultValue == "" || defaultValue == [] || isAttrs defaultValue
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then "*empty*"
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else if isBool defaultValue then
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if defaultValue then "`true`" else "`false`"
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else "`${toString defaultValue}`"
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else "*machine-specific*";
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showAliases = aliases:
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optionalString (aliases != [])
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"**Deprecated alias:** ${(concatStringsSep ", " (map (s: "`${s}`") aliases))}";
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in result;
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in concatStrings (attrValues (mapAttrs (showSetting prefix) settingsInfo))
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