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-rw-r--r--lib/eval-source.nix15
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/eval-source.nix b/lib/eval-source.nix
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index 000000000..468fc92d1
--- /dev/null
+++ b/lib/eval-source.nix
@@ -0,0 +1,15 @@
+with import <stockholm/lib>;
+let
+ eval = _file: source: evalModules {
+ modules = singleton {
+ inherit _file;
+ imports = map (source: { inherit source; }) (toList source);
+ options.source = mkOption {
+ type = types.attrsOf types.source;
+ default = {};
+ };
+ };
+ };
+in
+ # This function's return value can be used as pkgs.populate input.
+ _file: source: (eval _file source).config.source