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# LGPL-2.1-or-later
#
# taken from: https://github.com/NixOS/nix/blob/master/src/libexpr/primops/derivation.nix
#
# TODO: rewrite in native Rust code
/* This is the implementation of the ‘derivation’ builtin function.
It's actually a wrapper around the ‘derivationStrict’ primop. */
drvAttrs @ { outputs ? [ "out" ], ... }:
let
strict = derivationStrict drvAttrs;
commonAttrs = drvAttrs // (builtins.listToAttrs outputsList) //
{
all = map (x: x.value) outputsList;
inherit drvAttrs;
};
outputToAttrListElement = outputName:
{
name = outputName;
value = commonAttrs // {
outPath = builtins.getAttr outputName strict;
drvPath = strict.drvPath;
type = "derivation";
inherit outputName;
};
};
outputsList = map outputToAttrListElement outputs;
in
(builtins.head outputsList).value
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