nixstore: Nix expression for generating a nixpkgs index #885
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This expression generates a JSON blob containing the metadata for every derivation in nixpkgs, similar to that of hydra's
packages.json
. It differs in that it also includes the store path for each package and contains the system that generated the index. The system field lets us know which packages can actually be evaluated for a given system, which tends to differ from the systems that claim to be supported in the metadata.This isn't used anywhere yet, but it can be manually called as a script to generate the JSON for prototyping or debugging.