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splice.nix: add convenience functions

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Artturin 2022-12-24 17:33:06 +02:00
parent 0a3d351240
commit 665e15ee40
1 changed files with 18 additions and 0 deletions
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18
pkgs/top-level/splice.nix
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@ -146,6 +146,24 @@ in
newScope = extra: lib.callPackageWith (splicedPackagesWithXorg // extra);
# prefill 2 fields of the function for convenience
makeScopeWithSplicing = lib.makeScopeWithSplicing splicePackages pkgs.newScope;
# generate 'otherSplices' for 'makeScopeWithSplicing'
generateSplicesForMkScope = attr:
let
split = X: lib.splitString "." "${X}.${attr}";
in
{
# nulls should never be reached
selfBuildBuild = lib.attrByPath (split "pkgsBuildBuild") null pkgs;
selfBuildHost = lib.attrByPath (split "pkgsBuildHost") null pkgs;
selfBuildTarget = lib.attrByPath (split "pkgsBuildTarget") null pkgs;
selfHostHost = lib.attrByPath (split "pkgsHostHost") null pkgs;
selfHostTarget = lib.attrByPath (split "pkgsHostTarget") null pkgs;
selfTargetTarget = lib.attrByPath (split "pkgsTargetTarget") { } pkgs;
};
# Haskell package sets need this because they reimplement their own
# `newScope`.
__splicedPackages = splicedPackages // { recurseForDerivations = false; };