add mechanism for handling meta.sourceProvenance attributes

heavily based on patterns used by licenses infrastructure, so may
appear overengineered for its initial level of use

1 files changed, 25 insertions, 0 deletions

diff --git a/lib/source-types.nix b/lib/source-types.nix
new file mode 100644
index 00000000000..8a4ab540b9d
--- /dev/null
+++ b/lib/source-types.nix
@@ -0,0 +1,25 @@
+{ lib }:
+
+lib.mapAttrs (tname: tset: let
+  defaultSourceType = {
+    shortName = tname;
+    isSource = false;
+  };
+
+  mkSourceType = sourceTypeDeclaration: let
+    applyDefaults = sourceType: defaultSourceType // sourceType;
+  in lib.pipe sourceTypeDeclaration [
+    applyDefaults
+  ];
+in mkSourceType tset) {
+
+  fromSource = {
+    isSource = true;
+  };
+
+  binaryNativeCode = {};
+
+  binaryBytecode = {};
+
+  binaryFirmware = {};
+}