Fetch flake outputs and display them

2025-08-24 15:36:47 +02:00
parent 5171770f1a
commit b0079a2756
7 changed files with 165 additions and 12 deletions
--- a/figure-out-flake-outputs.nix
+++ b/figure-out-flake-outputs.nix
@@ -0,0 +1,36 @@
+outputAttrs: let
+
+  attrNamePathToString = attrNamePath: builtins.concatStringsSep "." attrNamePath;
+
+  outputInfo = drv: builtins.listToAttrs (builtins.map (outputName: {
+    name = outputName;
+    value = {
+      store_path = drv."${outputName}".outPath;
+    };
+  }) drv.outputs);
+
+  recurseAttrs = attrs: attrNamePath: builtins.concatLists (builtins.attrValues (
+    builtins.mapAttrs (attrName: attrValue:
+      if builtins.typeOf attrValue == "set" then
+        if builtins.hasAttr "type" attrValue then
+          if attrValue.type == "derivation" then
+            [ {
+              name = attrNamePathToString (attrNamePath ++ [ attrName ]);
+              value = {
+                name = attrValue.name;
+                derivation_path = attrValue.drvPath;
+                system = attrValue.system;
+                outputs = outputInfo attrValue;
+              };
+            } ]
+          else
+            [ "unknown type" ]
+        else
+          recurseAttrs attrValue (attrNamePath ++ [ attrName ])
+      else
+        []
+    ) attrs
+  ));
+
+in
+  builtins.listToAttrs (recurseAttrs outputAttrs [])