all-packages: Rewrite packageOverrides to use fix'/extends
This way is cleaner, slightly faster (as shown by some quick tests) and causes no rebuilds. It could cause some evaluation errors though.
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Mathnerd314
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80131f4731
commit
9c0121be81
1 changed files with 42 additions and 54 deletions
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@ -64,7 +64,7 @@ let
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# { /* the config */ } and
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# { pkgs, ... } : { /* the config */ }
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if builtins.isFunction configExpr
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then configExpr { inherit pkgs; }
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then configExpr { pkgs = pkgsFinal; }
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else configExpr;
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# Allow setting the platform in the config file. Otherwise, let's use a reasonable default (pc)
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@ -83,51 +83,38 @@ let
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platform = if platform_ != null then platform_
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else config.platform or platformAuto;
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# Helper functions that are exported through `pkgs'.
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helperFunctions =
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stdenvAdapters //
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(import ../build-support/trivial-builders.nix { inherit lib; inherit (pkgs) stdenv; inherit (pkgs.xorg) lndir; });
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# The complete set of packages, after applying the overrides
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pkgsFinal = lib.fix' (lib.extends configOverrides (lib.extends stdenvOverrides pkgsFun));
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stdenvAdapters =
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import ../stdenv/adapters.nix pkgs;
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stdenvOverrides =
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# We don't want stdenv overrides in the case of cross-building,
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# or otherwise the basic overrided packages will not be built
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# with the crossStdenv adapter.
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if crossSystem == null
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then self: super: lib.optionalAttrs (super.stdenv ? overrides) (super.stdenv.overrides super)
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else self: super: {};
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# Allow packages to be overriden globally via the `packageOverrides'
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# Packages can be overriden globally via the `packageOverrides'
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# configuration option, which must be a function that takes `pkgs'
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# as an argument and returns a set of new or overriden packages.
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# The `packageOverrides' function is called with the *original*
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# (un-overriden) set of packages, allowing packageOverrides
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# attributes to refer to the original attributes (e.g. "foo =
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# ... pkgs.foo ...").
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pkgs = applyGlobalOverrides (config.packageOverrides or (pkgs: {}));
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mkOverrides = pkgsOrig: overrides: overrides //
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(lib.optionalAttrs (pkgsOrig.stdenv ? overrides && crossSystem == null) (pkgsOrig.stdenv.overrides pkgsOrig));
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# Return the complete set of packages, after applying the overrides
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# returned by the `overrider' function (see above). Warning: this
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# function is very expensive!
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applyGlobalOverrides = overrider:
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let
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# Call the overrider function. We don't want stdenv overrides
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# in the case of cross-building, or otherwise the basic
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# overrided packages will not be built with the crossStdenv
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# adapter.
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overrides = mkOverrides pkgsOrig (overrider pkgsOrig);
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# The un-overriden packages, passed to `overrider'.
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pkgsOrig = pkgsFun pkgs {};
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# The overriden, final packages.
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pkgs = pkgsFun pkgs overrides;
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in pkgs;
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# The recommended usage follows this snippet:
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# packageOverrides = super: let self = super.pkgs in ...
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# `super' is the *original* (un-overriden) set of packages,
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# while `self' refers to the final (overriden) set of packages.
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configOverrides =
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if config ? packageOverrides && bootStdenv == null # don't apply config overrides in stdenv boot
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then self: config.packageOverrides
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else self: super: {};
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# The package compositions. Yes, this isn't properly indented.
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pkgsFun = pkgs: overrides:
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with helperFunctions;
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let defaultScope = pkgs // pkgs.xorg; self = self_ // overrides;
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self_ = with self; helperFunctions // {
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pkgsFun = pkgs:
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let defaultScope = pkgs // pkgs.xorg;
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helperFunctions = pkgs_.stdenvAdapters // pkgs_.trivial-builders;
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pkgsRet = helperFunctions // pkgs_;
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pkgs_ = with pkgs; {
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# Helper functions that are exported through `pkgs'.
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trivial-builders = import ../build-support/trivial-builders.nix { inherit lib; inherit stdenv; inherit (xorg) lndir; };
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stdenvAdapters = import ../stdenv/adapters.nix pkgs;
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# Make some arguments passed to all-packages.nix available
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inherit system platform;
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@ -157,11 +144,7 @@ let
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#
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# The result is `pkgs' where all the derivations depending on `foo'
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# will use the new version.
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overridePackages = f:
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let
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newpkgs = pkgsFun newpkgs overrides;
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overrides = mkOverrides pkgs (f newpkgs pkgs);
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in newpkgs;
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overridePackages = f: lib.fix' (lib.extends f pkgs.__unfix__);
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# Override system. This is useful to build i686 packages on x86_64-linux.
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forceSystem = system: kernel: (import ./all-packages.nix) {
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@ -183,7 +166,7 @@ let
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### Helper functions.
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inherit lib config stdenvAdapters;
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inherit lib config;
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inherit (lib) lowPrio hiPrio appendToName makeOverridable;
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inherit (misc) versionedDerivation;
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@ -214,7 +197,8 @@ let
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allPackages = args: import ./all-packages.nix ({ inherit config system; } // args);
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};
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defaultStdenv = allStdenvs.stdenv // { inherit platform; };
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# We use pkgs_ because accessing pkgs would lead to an infinite recursion in stdenvOverrides
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defaultStdenv = pkgs_.allStdenvs.stdenv // { inherit platform; };
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stdenvCross = lowPrio (makeStdenvCross defaultStdenv crossSystem binutilsCross gccCrossStageFinal);
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@ -234,7 +218,7 @@ let
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};
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}
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else
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defaultStdenv;
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pkgs_.defaultStdenv;
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forceNativeDrv = drv : if crossSystem == null then drv else
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(drv // { crossDrv = drv.nativeDrv; });
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@ -5927,8 +5911,8 @@ let
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gotty = goPackages.gotty.bin // { outputs = [ "bin" ]; };
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gradleGen = callPackage ../development/tools/build-managers/gradle { };
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gradle = self.gradleGen.gradleLatest;
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gradle25 = self.gradleGen.gradle25;
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gradle = gradleGen.gradleLatest;
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gradle25 = gradleGen.gradle25;
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gperf = callPackage ../development/tools/misc/gperf { };
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@ -11761,7 +11745,7 @@ let
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AppKit Carbon Cocoa IOKit OSAKit Quartz QuartzCore WebKit
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ImageCaptureCore GSS ImageIO;
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});
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emacs24Macport = self.emacs24Macport_24_5;
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emacs24Macport = emacs24Macport_24_5;
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emacs25pre = lowPrio (callPackage ../applications/editors/emacs-25 {
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# use override to enable additional features
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@ -16103,12 +16087,13 @@ let
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mg = callPackage ../applications/editors/mg { };
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}; # self_ =
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};
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# end pkgs_ =
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### Deprecated aliases - for backward compatibility
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aliases = with self; rec {
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aliases = with pkgs; {
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accounts-qt = qt5.accounts-qt; # added 2015-12-19
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adobeReader = adobe-reader;
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arduino_core = arduino-core; # added 2015-02-04
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@ -16195,4 +16180,7 @@ tweakAlias = _n: alias: with lib;
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removeAttrs alias ["recurseForDerivations"]
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else alias;
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in lib.mapAttrs tweakAlias aliases // self; in pkgs
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in lib.mapAttrs tweakAlias aliases // pkgsRet;
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# end pkgsFun
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in pkgsFinal
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