Merge pull request NixOS#10624 from edolstra/flake-root-tests

Add tests for dirOf/baseNameOf on the root of a flake

src/libfetchers/path.cc

@@ -54,6 +54,7 @@ struct PathInputScheme : InputScheme
             "narHash",
         };
     }
+
     std::optional<Input> inputFromAttrs(const Attrs & attrs) const override
     {
         getStrAttr(attrs, "path");

tests/functional/flakes/common.sh

@@ -21,6 +21,10 @@ writeSimpleFlake() {
 
     # To test "nix flake init".
     legacyPackages.$system.hello = import ./simple.nix;
+
+    parent = builtins.dirOf ./.;
+
+    baseName = builtins.baseNameOf ./.;
   };
 }
 EOF

tests/functional/flakes/flakes.sh

@@ -231,6 +231,12 @@ nix build -o "$TEST_ROOT/result" --expr "(builtins.getFlake \"$flake1Dir\").pack
 # 'getFlake' on a locked flakeref should succeed even in pure mode.
 nix build -o "$TEST_ROOT/result" --expr "(builtins.getFlake \"git+file://$flake1Dir?rev=$hash2\").packages.$system.default"
 
+# Regression test for dirOf on the root of the flake.
+[[ $(nix eval --json flake1#parent) = \""$NIX_STORE_DIR"\" ]]
+
+# Regression test for baseNameOf on the root of the flake.
+[[ $(nix eval --raw flake1#baseName) =~ ^[a-z0-9]*-source$ ]]
+
 # Building a flake with an unlocked dependency should fail in pure mode.
 (! nix build -o "$TEST_ROOT/result" flake2#bar --no-registries)
 (! nix build -o "$TEST_ROOT/result" flake2#bar --no-use-registries)