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{ busybox, contentAddressed ? false }:
with import ./config.nix;
let
caArgs = if contentAddressed then {
outputHashMode = "recursive";
outputHashAlgo = "sha256";
__contentAddressed = true;
} else {};
mkDerivation = args:
derivation ({
inherit system;
builder = busybox;
args = ["sh" "-e" args.builder or (builtins.toFile "builder-${args.name}.sh" "if [ -e .attrs.sh ]; then source .attrs.sh; fi; eval \"$buildCommand\"")];
} // removeAttrs args ["builder" "meta" "passthru"]
// caArgs)
// { meta = args.meta or {}; passthru = args.passthru or {}; };
input1 = mkDerivation {
shell = busybox;
name = "build-remote-input-1";
buildCommand = "echo hi-input1; echo FOO > $out";
requiredSystemFeatures = ["foo"];
};
input2 = mkDerivation {
shell = busybox;
name = "build-remote-input-2";
buildCommand = "echo hi; echo BAR > $out";
requiredSystemFeatures = ["bar"];
};
input3 = mkDerivation {
shell = busybox;
name = "build-remote-input-3";
buildCommand = ''
echo hi-input3
read x < ${input2}
echo $x BAZ > $out
'';
requiredSystemFeatures = ["baz"];
};
in
mkDerivation {
shell = busybox;
name = "build-remote";
passthru = { inherit input1 input2 input3; };
buildCommand =
''
read x < ${input1}
read y < ${input3}
echo "$x $y" > $out
'';
}
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