56 lines
1.7 KiB
Nix
56 lines
1.7 KiB
Nix
{ lib, pkgs, stdenvNoCC }:
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let
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tests =
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let
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p = pkgs.python3Packages.xpybutil.overridePythonAttrs (_: { dontWrapPythonPrograms = true; });
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in
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[
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({
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name = "overridePythonAttrs";
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expr = !lib.hasInfix "wrapPythonPrograms" p.postFixup;
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expected = true;
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})
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({
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name = "repeatedOverrides-pname";
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expr = repeatedOverrides.pname == "a-better-hello-with-blackjack";
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expected = true;
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})
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({
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name = "repeatedOverrides-entangled-pname";
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expr = repeatedOverrides.entangled.pname == "a-better-figlet-with-blackjack";
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expected = true;
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})
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];
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addEntangled = origOverrideAttrs: f:
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origOverrideAttrs (
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lib.composeExtensions f (self: super: {
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passthru = super.passthru // {
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entangled = super.passthru.entangled.overrideAttrs f;
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overrideAttrs = addEntangled self.overrideAttrs;
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};
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})
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);
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entangle = pkg1: pkg2: pkg1.overrideAttrs (self: super: {
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passthru = super.passthru // {
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entangled = pkg2;
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overrideAttrs = addEntangled self.overrideAttrs;
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};
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});
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example = entangle pkgs.hello pkgs.figlet;
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overrides1 = example.overrideAttrs (_: super: { pname = "a-better-${super.pname}"; });
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repeatedOverrides = overrides1.overrideAttrs (_: super: { pname = "${super.pname}-with-blackjack"; });
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in
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stdenvNoCC.mkDerivation {
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name = "test-overriding";
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passthru = { inherit tests; };
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buildCommand = ''
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touch $out
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'' + lib.concatMapStringsSep "\n" (t: "([[ ${lib.boolToString t.expr} == ${lib.boolToString t.expected} ]] && echo '${t.name} success') || (echo '${t.name} fail' && exit 1)") tests;
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}
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