81 lines
2 KiB
Nix
81 lines
2 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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stubType = types.submodule ({ name, ... }: {
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options = {
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name = mkOption {
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type = types.str;
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default = "dummy";
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description = "The stub package name.";
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};
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outPath = mkOption {
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type = types.nullOr types.str;
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default = "@${name}@";
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defaultText = literalExpression ''"@''${name}@"'';
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};
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version = mkOption {
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type = types.nullOr types.str;
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default = null;
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defaultText = literalExpression "pkgs.\${name}.version or null";
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};
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buildScript = mkOption {
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type = types.str;
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default = defaultBuildScript;
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};
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};
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});
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defaultBuildScript = "mkdir $out";
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dummyPackage = pkgs.runCommandLocal "dummy" { meta.mainProgram = "dummy"; }
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defaultBuildScript;
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mkStubPackage = { name ? "dummy", outPath ? null, version ? null
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, buildScript ? defaultBuildScript }:
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let
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pkg = if name == "dummy" && buildScript == defaultBuildScript then
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dummyPackage
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else
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pkgs.runCommandLocal name {
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pname = name;
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meta.mainProgram = name;
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} buildScript;
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in pkg // optionalAttrs (outPath != null) {
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inherit outPath;
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# Prevent getOutput from descending into outputs
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outputSpecified = true;
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# Allow the original package to be used in derivation inputs
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__spliced = {
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buildHost = pkg;
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hostTarget = pkg;
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};
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} // optionalAttrs (version != null) { inherit version; };
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in {
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options.test.stubs = mkOption {
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type = types.attrsOf stubType;
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default = { };
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description =
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"Package attributes that should be replaced by a stub package.";
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};
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config = {
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lib.test.mkStubPackage = mkStubPackage;
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nixpkgs.overlays = mkIf (config.test.stubs != { }) [
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(self: super:
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mapAttrs (n: v:
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mkStubPackage (v // optionalAttrs (v.version == null) {
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version = super.${n}.version or null;
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})) config.test.stubs)
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];
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};
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}
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