Release 2.14 (2023-02-28)
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A new function
builtins.readFileTypeis available. It is similar tobuiltins.readDirbut acts on a single file or directory. -
In flakes, the
.outPathattribute of a flake now always refers to the directory containing theflake.nix. This was not the case for whenflake.nixwas in a subdirectory of e.g. a Git repository. The root of the source of a flake in a subdirectory is still available in.sourceInfo.outPath. -
In derivations that use structured attributes, you can now use
unsafeDiscardReferencesto disable scanning a given output for runtime dependencies:__structuredAttrs = true; unsafeDiscardReferences.out = true;This is useful e.g. when generating self-contained filesystem images with their own embedded Nix store: hashes found inside such an image refer to the embedded store and not to the host's Nix store.
This requires the
discard-referencesexperimental feature.