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Add mkMesonPackage for local meson packages
This helper makes it easy to use filesets that include files from parent directories, which we'll need more of in https://github.com/NixOS/nix/pull/10973
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@ -10,6 +10,33 @@
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stdenv,
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versionSuffix,
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}:
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let
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inherit (pkgs) lib;
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localSourceLayer = finalAttrs: prevAttrs:
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let
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root = ../.;
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workDirPath =
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# Ideally we'd pick finalAttrs.workDir, but for now `mkDerivation` has
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# the requirement that everything except passthru and meta must be
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# serialized by mkDerivation, which doesn't work for this.
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prevAttrs.workDir;
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workDirSubpath = lib.path.removePrefix root workDirPath;
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sources = assert prevAttrs.fileset._type == "fileset"; prevAttrs.fileset;
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src = lib.fileset.toSource { fileset = sources; inherit root; };
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in
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{
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sourceRoot = "${src.name}/" + workDirSubpath;
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inherit src;
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# Clear what `derivation` can't/shouldn't serialize; see prevAttrs.workDir.
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fileset = null;
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workDir = null;
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};
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in
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scope: {
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inherit stdenv versionSuffix;
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@ -55,4 +82,6 @@ scope: {
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CONFIG_ASH_TEST y
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'';
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});
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mkMesonDerivation = f: stdenv.mkDerivation (lib.extends localSourceLayer f);
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}
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