libstore-c: Add new derivation and store path functions#14555
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Ericson2314 merged 2 commits intomasterfrom Nov 25, 2025
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OK I moved some of the new stuff in to https://github.com/NixOS/nix/tree/more-store-ffi-2 so this is smaller in scope. |
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🎉 All dependencies have been resolved ! |
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Per https://en.cppreference.com/w/cpp/memory/new/operator_new.html, it can throw if the allocation fails.
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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>
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Motivation
Trying out new and improved FFI with new and improved bindings + Harmonia.
Context
Rebase of #14031
Depends on #14560
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