1c10ce6047
Add several new functions to the C API: StorePath operations: - nix_store_path_hash: Extract the hash part from a store path - nix_store_create_from_parts: Construct a store path from hash and name Derivation operations: - nix_derivation_clone: Clone a derivation - nix_derivation_to_json: Serialize a derivation to JSON Store operations: - nix_store_drv_from_store_path: Load a derivation from a store path Test the new functions, and improve documentation of some existing functions to better distinguish them, also. Co-authored-by: Tristan Ross <tristan.ross@determinate.systems> Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>