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lix/tests/lang/eval-okay-context-introspection.nix
Shea Levy b30be6b450
Add builtins.appendContext.
A partner of builtins.getContext, useful for the same reasons.
2019-01-31 08:52:23 -05:00

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Nix

let
drv = derivation {
name = "fail";
builder = "/bin/false";
system = "x86_64-linux";
outputs = [ "out" "foo" ];
};
path = "${./eval-okay-context-introspection.nix}";
desired-context = {
"${builtins.unsafeDiscardStringContext path}" = {
path = true;
};
"${builtins.unsafeDiscardStringContext drv.drvPath}" = {
outputs = [ "foo" "out" ];
allOutputs = true;
};
};
legit-context = builtins.getContext "${path}${drv.outPath}${drv.foo.outPath}${drv.drvPath}";
constructed-context = builtins.getContext (builtins.appendContext "" desired-context);
in legit-context == constructed-context