61 lines
1.7 KiB
Nix
61 lines
1.7 KiB
Nix
let
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drv = derivation {
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name = "fail";
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builder = "/bin/false";
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system = "x86_64-linux";
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outputs = [ "out" "foo" ];
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};
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# Note that this refers to ./in-introspection to nix, which will be copied as `in.nix` in the test environment
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path = "${./in.nix}";
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desired-context = {
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"${builtins.unsafeDiscardStringContext path}" = {
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path = true;
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};
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"${builtins.unsafeDiscardStringContext drv.drvPath}" = {
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outputs = [ "foo" "out" ];
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allOutputs = true;
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};
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};
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combo-path = "${path}${drv.outPath}${drv.foo.outPath}${drv.drvPath}";
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legit-context = builtins.getContext combo-path;
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reconstructed-path = builtins.appendContext
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(builtins.unsafeDiscardStringContext combo-path)
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desired-context;
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# Eta rule for strings with context.
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etaRule = str:
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str == builtins.appendContext
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(builtins.unsafeDiscardStringContext str)
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(builtins.getContext str);
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# Only holds true if string context contains both a `DrvDeep` and
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# `Opaque` element.
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almostEtaRule = str:
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str == builtins.addDrvOutputDependencies
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(builtins.unsafeDiscardOutputDependency str);
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addDrvOutputDependencies_idempotent = str:
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builtins.addDrvOutputDependencies str ==
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builtins.addDrvOutputDependencies (builtins.addDrvOutputDependencies str);
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rules = str: [
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(etaRule str)
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(almostEtaRule str)
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(addDrvOutputDependencies_idempotent str)
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];
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in [
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(legit-context == desired-context)
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(reconstructed-path == combo-path)
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(etaRule "foo")
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(etaRule drv.foo.outPath)
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] ++ builtins.concatMap rules [
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drv.drvPath
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(builtins.addDrvOutputDependencies drv.drvPath)
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(builtins.unsafeDiscardOutputDependency drv.drvPath)
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]
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