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-rw-r--r--lib/default.nix3
-rw-r--r--lib/eval-source.nix17
2 files changed, 20 insertions, 0 deletions
diff --git a/lib/default.nix b/lib/default.nix
index 803a614a1..4c54f60aa 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -1,6 +1,9 @@
let
nixpkgs-lib = import <nixpkgs/lib>;
lib = with lib; nixpkgs-lib // builtins // {
+
+ evalSource = import ./eval-source.nix;
+
git = import ./git.nix { inherit lib; };
shell = import ./shell.nix { inherit lib; };
types = nixpkgs-lib.types // import ./types.nix { inherit lib; };
diff --git a/lib/eval-source.nix b/lib/eval-source.nix
new file mode 100644
index 000000000..de5f0b43c
--- /dev/null
+++ b/lib/eval-source.nix
@@ -0,0 +1,17 @@
+with import <stockholm/lib>;
+let
+ eval = _file: source: evalModules {
+ modules = singleton {
+ inherit _file;
+ options.source = mkOption {
+ type = types.attrsOf types.source;
+ default = {};
+ };
+ config = {
+ inherit source;
+ };
+ };
+ };
+in
+ # This function's return value can be used as pkgs.populate input.
+ _file: source: (eval _file source).config.source