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docs: Correctly generate documentation for types `either a (submodule…
… ...)` (#929) This requires pulling quite a lot of code from nixpkgs in order to make the `either` type work correctly, the effects can be seen for example in the documentation of `ollama.promps` and `ollama.actions`
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{ | ||
options-json, | ||
runCommand, | ||
installShellFiles, | ||
nixos-render-docs, | ||
}: | ||
runCommand "nixvim-configuration-reference-manpage" { | ||
nativeBuildInputs = [installShellFiles nixos-render-docs]; | ||
} '' | ||
# Generate man-pages | ||
mkdir -p $out/share/man/man5 | ||
nixos-render-docs -j $NIX_BUILD_CORES options manpage \ | ||
--revision unstable \ | ||
--header ${./nixvim-header.5} \ | ||
--footer ${./nixvim-footer.5} \ | ||
${options-json}/share/doc/nixos/options.json \ | ||
$out/share/man/man5/nixvim.5 | ||
compressManPages $out | ||
'' |
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{ | ||
pkgs, | ||
lib, | ||
modules, | ||
mkOptionsJSON, | ||
runCommand, | ||
nixos-render-docs, | ||
getSubOptions', | ||
}: | ||
with lib; let | ||
options = lib.evalModules { | ||
inherit modules; | ||
specialArgs = {inherit pkgs lib;}; | ||
}; | ||
|
||
mkMDDoc = options: let | ||
optionsJson = mkOptionsJSON options; | ||
in | ||
runCommand "options.md" { | ||
nativeBuildInputs = [nixos-render-docs]; | ||
} '' | ||
nixos-render-docs -j $NIX_BUILD_CORES options commonmark \ | ||
--manpage-urls ${pkgs.path + "/doc/manpage-urls.json"} \ | ||
--revision "" \ | ||
${optionsJson}/share/doc/nixos/options.json \ | ||
$out | ||
''; | ||
|
||
removeUnwanted = attrs: | ||
builtins.removeAttrs attrs [ | ||
"_module" | ||
"_freeformOptions" | ||
"warnings" | ||
"assertions" | ||
"content" | ||
]; | ||
|
||
removeWhitespace = builtins.replaceStrings [" "] [""]; | ||
|
||
getSubOptions = opts: path: removeUnwanted (getSubOptions' opts.type path); | ||
|
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isVisible = opts: | ||
if isOption opts | ||
then attrByPath ["visible"] true opts | ||
else if opts.isOption | ||
then attrByPath ["index" "options" "visible"] true opts | ||
else let | ||
filterFunc = | ||
filterAttrs | ||
( | ||
_: v: | ||
if isAttrs v | ||
then isVisible v | ||
else true | ||
); | ||
|
||
hasEmptyIndex = (filterFunc opts.index.options) == {}; | ||
hasEmptyComponents = (filterFunc opts.components) == {}; | ||
in | ||
!hasEmptyIndex || !hasEmptyComponents; | ||
|
||
wrapModule = path: opts: isOpt: rec { | ||
index = { | ||
options = | ||
if isOpt | ||
then opts | ||
else filterAttrs (_: component: component.isOption && (isVisible component)) opts; | ||
path = removeWhitespace (concatStringsSep "/" path); | ||
}; | ||
|
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components = | ||
if isOpt | ||
then {} | ||
else filterAttrs (_: component: !component.isOption && (isVisible component)) opts; | ||
|
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hasComponents = components != {}; | ||
|
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isOption = isOpt; | ||
}; | ||
|
||
processModulesRec = modules: let | ||
recurse = path: mods: let | ||
g = name: opts: | ||
if !isOption opts | ||
then wrapModule (path ++ [name]) (recurse (path ++ [name]) opts) false | ||
else let | ||
subOpts = getSubOptions opts (path ++ [name]); | ||
in | ||
if subOpts != {} | ||
then | ||
wrapModule | ||
(path ++ [name]) | ||
( | ||
(recurse (path ++ [name]) subOpts) | ||
// { | ||
# This is necessary to include the submodule option's definition in the docs (description, type, etc.) | ||
# For instance, this helps submodules like "autoCmd" to include their base definitions and examples in the docs | ||
# Though there might be a better, less "hacky" solution than this. | ||
${name} = recursiveUpdate opts { | ||
isOption = true; | ||
type.getSubOptions = _: _: {}; # Used to exclude suboptions from the submodule definition itself | ||
}; | ||
} | ||
) | ||
false | ||
else wrapModule (path ++ [name]) opts true; | ||
in | ||
mapAttrs g mods; | ||
in | ||
foldlAttrs | ||
( | ||
acc: name: opts: let | ||
group = | ||
if !opts.hasComponents | ||
then "Neovim Options" | ||
else "none"; | ||
|
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last = | ||
acc.${group} | ||
or { | ||
index = { | ||
options = {}; | ||
path = removeWhitespace "${group}"; | ||
}; | ||
components = {}; | ||
isGroup = true; | ||
hasComponents = false; | ||
}; | ||
|
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isOpt = !opts.hasComponents && (isOption opts.index.options); | ||
in | ||
acc | ||
// { | ||
${group} = recursiveUpdate last { | ||
index.options = optionalAttrs isOpt { | ||
${name} = opts.index.options; | ||
}; | ||
|
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components = optionalAttrs (!isOpt) { | ||
${name} = recursiveUpdate opts { | ||
index.path = | ||
removeWhitespace | ||
( | ||
concatStringsSep "/" | ||
( | ||
(optional (group != "none") group) ++ [opts.index.path] | ||
) | ||
); | ||
hasComponents = true; | ||
}; | ||
}; | ||
|
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hasComponents = last.components != {}; | ||
}; | ||
} | ||
) | ||
{} | ||
(recurse [] modules); | ||
|
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mapModulesToString = f: modules: let | ||
recurse = mods: let | ||
g = name: opts: | ||
if (opts ? "isGroup") | ||
then | ||
if name != "none" | ||
then (f name opts) + ("\n" + recurse opts.components) | ||
else recurse opts.components | ||
else if opts.hasComponents | ||
then (f name opts) + ("\n" + recurse opts.components) | ||
else f name opts; | ||
in | ||
concatStringsSep "\n" (mapAttrsToList g mods); | ||
in | ||
recurse modules; | ||
|
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docs = rec { | ||
modules = processModulesRec (removeUnwanted options.options); | ||
commands = | ||
mapModulesToString | ||
( | ||
name: opts: let | ||
isBranch = | ||
if (hasSuffix "index" opts.index.path) | ||
then true | ||
else opts.hasComponents; | ||
path = | ||
if isBranch | ||
then "${opts.index.path}/index.md" | ||
else "${opts.index.path}.md"; | ||
in | ||
(optionalString isBranch | ||
"mkdir -p ${opts.index.path}\n") | ||
+ "cp ${mkMDDoc opts.index.options} ${path}" | ||
) | ||
modules; | ||
}; | ||
|
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mdbook = { | ||
nixvimOptions = | ||
mapModulesToString | ||
( | ||
name: opts: let | ||
isBranch = | ||
if name == "index" | ||
then true | ||
else opts.hasComponents && opts.index.options != {}; | ||
|
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path = | ||
if isBranch | ||
then "${opts.index.path}/index.md" | ||
else if !opts.hasComponents | ||
then "${opts.index.path}.md" | ||
else ""; | ||
|
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indentLevel = with builtins; length (filter isString (split "/" opts.index.path)) - 1; | ||
|
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padding = concatStrings (builtins.genList (_: "\t") indentLevel); | ||
in "${padding}- [${name}](${path})" | ||
) | ||
docs.modules; | ||
}; | ||
|
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prepareMD = '' | ||
# Copy inputs into the build directory | ||
cp -r --no-preserve=all $inputs/* ./ | ||
cp ${../../CONTRIBUTING.md} ./CONTRIBUTING.md | ||
# Copy the generated MD docs into the build directory | ||
# Using pkgs.writeShellScript helps to avoid the "bash: argument list too long" error | ||
bash -e ${pkgs.writeShellScript "copy_docs" docs.commands} | ||
# Prepare SUMMARY.md for mdBook | ||
# Using pkgs.writeText helps to avoid the same error as above | ||
substituteInPlace ./SUMMARY.md \ | ||
--replace "@NIXVIM_OPTIONS@" "$(cat ${pkgs.writeText "nixvim-options-summary.md" mdbook.nixvimOptions})" | ||
''; | ||
in | ||
pkgs.stdenv.mkDerivation { | ||
name = "nixvim-docs"; | ||
|
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phases = ["buildPhase"]; | ||
|
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buildInputs = [pkgs.mdbook]; | ||
inputs = sourceFilesBySuffices ./. [".md" ".toml" ".js"]; | ||
|
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buildPhase = '' | ||
dest=$out/share/doc | ||
mkdir -p $dest | ||
${prepareMD} | ||
mdbook build | ||
cp -r ./book/* $dest | ||
''; | ||
} |
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