nix registry pin: Mark the resulting registry entry as exact #12581
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Since the resulting target flakeref contains attributes like "lastModified" or "narHash", it's not suitable for overriding. This led to errors like $ nix build nixpkgs/24.05#hello error: 'lastModified' attribute mismatch in input 'github:NixOS/nixpkgs/63dacb46bf939521bdc93981b4cbb7ecb58427a0', expected 1728538411, got 1717179513 after doing `nix registry pin nixpkgs`.
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What is exact? It's not documented in the manual or on the C++ field. |
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It means that the registry entry is only used to rewrite the given flakeref if it's exactly equal to the |
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backport 2.28-maintenance
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Apr 9, 2025
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Added a test in #13229 |
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Motivation
Since the resulting target flakeref contains attributes like
lastModifiedornarHash, it's not suitable for overriding. This led to errors likeafter doing
nix registry pin nixpkgs.Context
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