eldritch horrors
9eb58f5209
structured attrs: improve support / usage of NIX_ATTRS_{SH,JSON}_FILE
(cherry picked from commit 3c042f3b0b0a7ef9c47bf049f5410dbd4aac9e90)
Change-Id: I7e41838338ee1edf31fff6f9e354c3db2bba6c0e
59 lines
1.4 KiB
Nix
59 lines
1.4 KiB
Nix
{ busybox, seed }:
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with import ./config.nix;
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let
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contentAddressedByDefault = builtins.getEnv "NIX_TESTS_CA_BY_DEFAULT" == "1";
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caArgs = if contentAddressedByDefault then {
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__contentAddressed = true;
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outputHashMode = "recursive";
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outputHashAlgo = "sha256";
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} else {};
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mkDerivation = args:
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derivation ({
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inherit system;
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builder = busybox;
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args = ["sh" "-e" args.builder or (builtins.toFile "builder-${args.name}.sh" ''
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if [ -e "$NIX_ATTRS_SH_FILE" ]; then source $NIX_ATTRS_SH_FILE; fi;
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eval "$buildCommand"
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'')];
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} // removeAttrs args ["builder" "meta" "passthru"]
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// caArgs)
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// { meta = args.meta or {}; passthru = args.passthru or {}; };
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input1 = mkDerivation {
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shell = busybox;
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name = "hermetic-input-1";
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buildCommand = "echo hi-input1 seed=${toString seed}; echo FOO > $out";
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};
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input2 = mkDerivation {
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shell = busybox;
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name = "hermetic-input-2";
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buildCommand = "echo hi; echo BAR > $out";
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};
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input3 = mkDerivation {
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shell = busybox;
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name = "hermetic-input-3";
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buildCommand = ''
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echo hi-input3
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read x < ${input2}
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echo $x BAZ > $out
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'';
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};
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in
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mkDerivation {
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shell = busybox;
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name = "hermetic";
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passthru = { inherit input1 input2 input3; };
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buildCommand =
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''
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read x < ${input1}
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read y < ${input3}
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echo "$x $y" > $out
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'';
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}
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