Implemented "nix flake info"

src/libexpr/primops/flake.cc

@@ -141,19 +141,6 @@ static FlakeSourceInfo fetchFlake(EvalState & state, const FlakeRef & flakeRef)
     else abort();
 }
 
-struct Flake
-{
-    FlakeId id;
-    std::string description;
-    Path path;
-    std::vector<FlakeRef> requires;
-    std::unique_ptr<FlakeRegistry> lockFile;
-    Value * vProvides; // FIXME: gc
-    // commit hash
-    // date
-    // content hash
-};
-
 static Flake getFlake(EvalState & state, const FlakeRef & flakeRef)
 {
     auto sourceInfo = fetchFlake(state, flakeRef);

src/libexpr/primops/flake.hh

@@ -21,4 +21,18 @@ Value * makeFlakeRegistryValue(EvalState & state);
 
 Value * makeFlakeValue(EvalState & state, std::string flakeUri, Value & v);
 
+struct Flake
+{
+    FlakeId id;
+    std::string description;
+    Path path;
+    std::vector<FlakeRef> requires;
+    std::unique_ptr<FlakeRegistry> lockFile;
+    Value * vProvides; // FIXME: gc
+    // commit hash
+    // date
+    // content hash
+};
+
+static Flake getFlake(EvalState & state, const FlakeRef & flakeRef);
 }