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nix/doc/manual/src/language/constructs/lookup-path.md
Valentin Gagarin 4956e7c44c
add cross-references to nix-path overriding (#11288) 
* add cross-references to `nix-path` overriding

while this information is already present in the settings, it's more
likely to be first accessed through the "lookup path" page, which
currently requires following two links to get to the practically
important bits.

Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2024-08-13 19:22:32 +02:00

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Lookup path

Syntax

lookup-path = < identifier [ / identifier ]... >

A lookup path is an identifier with an optional path suffix that resolves to a path value if the identifier matches a search path entry in builtins.nixPath. The algorithm for lookup path resolution is described in the documentation on builtins.findFile.

Example

<nixpkgs>

/nix/var/nix/profiles/per-user/root/channels/nixpkgs

Example

<nixpkgs/nixos>

/nix/var/nix/profiles/per-user/root/channels/nixpkgs/nixos