nix-super/src/nix/path-from-hash-part.md
Eelco Dolstra 61f89e954a
Add command 'nix store path-from-hash-part'
This exposes the Store::queryPathFromHashPart() interface in the CLI.
2022-10-18 16:51:12 +02:00

595 B

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Examples

  • Return the full store path with the given hash part:

    # nix store path-from-hash-part --store https://cache.nixos.org/ 0i2jd68mp5g6h2sa5k9c85rb80sn8hi9
    /nix/store/0i2jd68mp5g6h2sa5k9c85rb80sn8hi9-hello-2.10
    

Description

Given the hash part of a store path (that is, the 32 characters following /nix/store/), return the full store path. This is primarily useful in the implementation of binary caches, where a request for a .narinfo file only supplies the hash part (e.g. https://cache.nixos.org/0i2jd68mp5g6h2sa5k9c85rb80sn8hi9.narinfo).

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