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lib: Create makeScopeWithSplicing

It's ugly as hell, but I suppose it is needed to codify how to make
spliced package sets.
This commit is contained in:
John Ericson 2020-11-18 12:12:34 -05:00
parent f01bfd6843
commit a6218c058b
2 changed files with 28 additions and 1 deletions

View file

@ -217,4 +217,31 @@ rec {
};
in self;
/* Like the above, but aims to support cross compilation. It's still ugly, but
hopefully it helps a little bit. */
makeScopeWithSplicing = splicePackages: newScope: otherSplices: keep: f:
let
spliced = splicePackages {
pkgsBuildBuild = otherSplices.selfBuildBuild;
pkgsBuildHost = otherSplices.selfBuildHost;
pkgsBuildTarget = otherSplices.selfBuildTarget;
pkgsHostHost = otherSplices.selfHostHost;
pkgsHostTarget = self; # Not `otherSplices.selfHostTarget`;
pkgsTargetTarget = otherSplices.selfTargetTarget;
} // keep self;
self = f self // {
newScope = scope: newScope (spliced // scope);
callPackage = newScope spliced; # == self.newScope {};
# N.B. the other stages of the package set spliced in are *not*
# overridden.
overrideScope = g: makeScopeWithSplicing
splicePackages
newScope
otherSplices
keep
(lib.fixedPoints.extends g f);
packages = f;
};
in self;
}

View file

@ -101,7 +101,7 @@ let
noDepEntry fullDepEntry packEntry stringAfter;
inherit (self.customisation) overrideDerivation makeOverridable
callPackageWith callPackagesWith extendDerivation hydraJob
makeScope;
makeScope makeScopeWithSplicing;
inherit (self.meta) addMetaAttrs dontDistribute setName updateName
appendToName mapDerivationAttrset setPrio lowPrio lowPrioSet hiPrio
hiPrioSet;