docs/packages/doc-locations-json/default.nix
2024-06-30 17:43:38 -04:00

82 lines
2.2 KiB
Nix

{ pkgs, ... }:
let
revision = pkgs.lib.trivial.revisionWithDefault (pkgs.rev or "master");
libDefPos =
prefix: set:
builtins.concatMap (
name:
[
{
name = builtins.concatStringsSep "." (prefix ++ [ name ]);
location = builtins.unsafeGetAttrPos name set;
}
]
++ nixpkgsLib.optionals (builtins.length prefix == 0 && builtins.isAttrs set.${name}) (
libDefPos (prefix ++ [ name ]) set.${name}
)
) (builtins.attrNames set);
libset =
toplib:
builtins.map (subsetname: {
subsetname = subsetname;
functions = libDefPos [ ] toplib.${subsetname};
}) (builtins.map (x: x.name) pkgs.libsets);
nixpkgsLib = pkgs.lib;
flattenedLibSubset =
{ subsetname, functions }:
builtins.map (fn: {
name = "lib.${subsetname}.${fn.name}";
value = fn.location;
}) functions;
locatedlibsets = libs: builtins.map flattenedLibSubset (libset libs);
removeFilenamePrefix =
prefix: filename:
let
prefixLen = (builtins.stringLength prefix) + 1; # +1 to remove the leading /
filenameLen = builtins.stringLength filename;
substr = builtins.substring prefixLen filenameLen filename;
in
substr;
removeNixpkgs = removeFilenamePrefix (builtins.toString pkgs.path);
liblocations = builtins.filter (elem: elem.value != null) (
nixpkgsLib.lists.flatten (locatedlibsets nixpkgsLib)
);
fnLocationRelative =
{ name, value }:
{
inherit name;
value = value // {
file = removeNixpkgs value.file;
};
};
relativeLocs = (builtins.map fnLocationRelative liblocations);
sanitizeId = builtins.replaceStrings [ "'" ] [ "-prime" ];
urlPrefix = "https://github.com/NixOS/nixpkgs/blob/${revision}";
jsonLocs = builtins.listToAttrs (
builtins.map (
{ name, value }:
{
name = sanitizeId name;
value =
let
text = "${value.file}:${builtins.toString value.line}";
target = "${urlPrefix}/${value.file}#L${builtins.toString value.line}";
in
"[${text}](${target}) in `<nixpkgs>`";
}
) relativeLocs
);
in
pkgs.writeText "locations.json" (builtins.toJSON jsonLocs)