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feat(lib): add mapModules to map func over modules

nixos
Moritz Böhme 2023-03-11 16:56:22 +01:00
parent b81735b885
commit 19fd153a6d
Signed by: moritz
GPG Key ID: 970C6E89EB0547A9
1 changed files with 30 additions and 0 deletions
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30
lib/default.nix
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@ -13,4 +13,34 @@ lib.makeExtensible (self: rec {
rev = input.shortRev or "dirty";
in
"unstable-${date}_${rev}";
mapModules = f: dir:
let
filter = name: type:
let
isPublic = !(lib.hasPrefix "_" name);
isSomething = type != null;
isModule =
let
path = "${toString dir}/${name}";
isDefault = type == "directory" && builtins.pathExists "${path}/default.nix";
isFile = type == "regular" && lib.hasSuffix ".nix" name && name != "default.nix";
in
isDefault || isFile;
in
isPublic && isSomething && isModule;
mkModule = name: _:
let
path = "${toString dir}/${name}";
normalizedName =
if name == "default.nix"
then name
else lib.removeSuffix ".nix" name;
in
lib.nameValuePair normalizedName (f path);
in
lib.mapAttrs' mkModule (lib.filterAttrs filter (builtins.readDir dir));
mapModules' = f: dir: lib.attrValues (mapModules f dir);
})