getContext

builtins.getContext

Primop

Docs pulled from | This Revision | 1 day ago

Takes 1 arguments

Return the string context of s.

The string context tracks references to derivations within a string. It is represented as an attribute set of store derivation paths mapping to output names.

Using string interpolation on a derivation will add that derivation to the string context. For example,

builtins.getContext "${derivation { name = "a"; builder = "b"; system = "c"; }}"

evaluates to

{ "/nix/store/arhvjaf6zmlyn8vh8fgn55rpwnxq0n7l-a.drv" = { outputs = [ "out" ]; }; }

This function is not defined in a .nix file. It is likely a builtins function or an alias of a builtins function. builtins functions are predefined functions provided by Nix.

Implementation

This function is implemented in c++ and is part of the native nix runtime.