99 lines
3.0 KiB
Nix
99 lines
3.0 KiB
Nix
{
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hostPkgs,
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lib,
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config,
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...
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}:
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let
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testDriver = hostPkgs.python3.pkgs.callPackage ./package.nix {
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inherit (config) extraPythonPackages;
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inherit (hostPkgs.pkgs) util-linux systemd;
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};
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containers = map (m: m.system.build.toplevel) (lib.attrValues config.nodes);
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pythonizeName =
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name:
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let
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head = lib.substring 0 1 name;
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tail = lib.substring 1 (-1) name;
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in
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(if builtins.match "[A-z_]" head == null then "_" else head)
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+ lib.stringAsChars (c: if builtins.match "[A-z0-9_]" c == null then "_" else c) tail;
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nodeHostNames =
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let
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nodesList = map (c: c.system.name) (lib.attrValues config.nodes);
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in
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nodesList ++ lib.optional (lib.length nodesList == 1 && !lib.elem "machine" nodesList) "machine";
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machineNames = map (name: "${name}: Machine;") pythonizedNames;
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pythonizedNames = map pythonizeName nodeHostNames;
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in
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{
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driver = lib.mkForce (
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hostPkgs.runCommand "nixos-test-driver-${config.name}"
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{
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nativeBuildInputs = [
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hostPkgs.makeWrapper
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] ++ lib.optionals (!config.skipTypeCheck) [ hostPkgs.mypy ];
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buildInputs = [ testDriver ];
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testScript = config.testScriptString;
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preferLocalBuild = true;
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passthru = config.passthru;
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meta = config.meta // {
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mainProgram = "nixos-test-driver";
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};
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}
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''
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mkdir -p $out/bin
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containers=(${toString containers})
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${lib.optionalString (!config.skipTypeCheck) ''
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# prepend type hints so the test script can be type checked with mypy
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cat "${./test-script-prepend.py}" >> testScriptWithTypes
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echo "${builtins.toString machineNames}" >> testScriptWithTypes
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echo -n "$testScript" >> testScriptWithTypes
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echo "Running type check (enable/disable: config.skipTypeCheck)"
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echo "See https://nixos.org/manual/nixos/stable/#test-opt-skipTypeCheck"
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mypy --no-implicit-optional \
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--pretty \
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--no-color-output \
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testScriptWithTypes
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''}
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echo -n "$testScript" >> $out/test-script
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ln -s ${testDriver}/bin/nixos-test-driver $out/bin/nixos-test-driver
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wrapProgram $out/bin/nixos-test-driver \
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${lib.concatStringsSep " " (map (name: "--add-flags '--container ${name}'") containers)} \
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--add-flags "--test-script '$out/test-script'"
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''
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);
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test = lib.mkForce (
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lib.lazyDerivation {
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# lazyDerivation improves performance when only passthru items and/or meta are used.
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derivation = hostPkgs.stdenv.mkDerivation {
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name = "vm-test-run-${config.name}";
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requiredSystemFeatures = [ "uid-range" ];
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buildCommand = ''
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mkdir -p $out
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# effectively mute the XMLLogger
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export LOGFILE=/dev/null
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${config.driver}/bin/nixos-test-driver -o $out
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'';
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passthru = config.passthru;
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meta = config.meta;
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};
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inherit (config) passthru meta;
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}
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);
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}
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