Check 'follows' inputs

1 files changed, 7 insertions, 2 deletions

diff --git a/src/libexpr/flake/lockfile.hh b/src/libexpr/flake/lockfile.hh
index 04ac80f56..5e7cfda3e 100644
--- a/src/libexpr/flake/lockfile.hh
+++ b/src/libexpr/flake/lockfile.hh
@@ -67,6 +67,13 @@ struct LockFile
     bool operator ==(const LockFile & other) const;
 
     std::shared_ptr<Node> findInput(const InputPath & path);
+
+    std::map<InputPath, Node::Edge> getAllInputs() const;
+
+    static std::string diff(const LockFile & oldLocks, const LockFile & newLocks);
+
+    /* Check that every 'follows' input target exists. */
+    void check();
 };
 
 std::ostream & operator <<(std::ostream & stream, const LockFile & lockFile);
@@ -75,6 +82,4 @@ InputPath parseInputPath(std::string_view s);
 
 std::string printInputPath(const InputPath & path);
 
-std::string diffLockFiles(const LockFile & oldLocks, const LockFile & newLocks);
-
 }