129 lines
4.7 KiB
Nix
129 lines
4.7 KiB
Nix
{ supportedSystems, packageSet ? (import ./all-packages.nix) }:
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rec {
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# Ensure that we don't build packages marked as unfree.
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allPackages = args: packageSet (args // {
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config.allowUnfree = false;
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});
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pkgs = allPackages { system = "x86_64-linux"; };
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/* !!! Hack: poor man's memoisation function. Necessary to prevent
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Nixpkgs from being evaluated again and again for every
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job/platform pair. */
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pkgsFor = system:
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if system == "x86_64-linux" then pkgs_x86_64_linux
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else if system == "i686-linux" then pkgs_i686_linux
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else if system == "x86_64-darwin" then pkgs_x86_64_darwin
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else if system == "x86_64-freebsd" then pkgs_x86_64_freebsd
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else if system == "i686-freebsd" then pkgs_i686_freebsd
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else if system == "i686-cygwin" then pkgs_i686_cygwin
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else abort "unsupported system type: ${system}";
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pkgs_x86_64_linux = allPackages { system = "x86_64-linux"; };
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pkgs_i686_linux = allPackages { system = "i686-linux"; };
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pkgs_x86_64_darwin = allPackages { system = "x86_64-darwin"; };
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pkgs_x86_64_freebsd = allPackages { system = "x86_64-freebsd"; };
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pkgs_i686_freebsd = allPackages { system = "i686-freebsd"; };
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pkgs_i686_cygwin = allPackages { system = "i686-cygwin"; };
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/* The working or failing mails for cross builds will be sent only to
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the following maintainers, as most package maintainers will not be
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interested in the result of cross building a package. */
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crossMaintainers = with pkgs.lib.maintainers; [ viric ];
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toJob = x: if builtins.isAttrs x then x else
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{ type = "job"; systems = x; };
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/* Build a package on the given set of platforms. The function `f'
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is called for each supported platform with Nixpkgs for that
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platform as an argument . We return an attribute set containing
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a derivation for each supported platform, i.e. ‘{ x86_64-linux =
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f pkgs_x86_64_linux; i686-linux = f pkgs_i686_linux; ... }’. */
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testOn = systems: f: pkgs.lib.genAttrs
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(pkgs.lib.filter (x: pkgs.lib.elem x supportedSystems) systems)
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(system: f (pkgsFor system));
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/* Similar to the testOn function, but with an additional
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'crossSystem' parameter for allPackages, defining the target
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platform for cross builds. */
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testOnCross = crossSystem: systems: f: {system ? builtins.currentSystem}:
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if pkgs.lib.elem system systems
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then f (allPackages { inherit system crossSystem; })
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else {};
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/* Map an attribute of the form `foo = [platforms...]' to `testOn
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[platforms...] (pkgs: pkgs.foo)'. */
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mapTestOn = pkgs.lib.mapAttrsRecursiveCond
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(as: as.type or "" != "job")
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(path: value:
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let
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job = toJob value;
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getPkg = pkgs: pkgs.lib.getAttrFromPath path pkgs;
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in testOn job.systems getPkg);
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/* Similar to the testOn function, but with an additional 'crossSystem'
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* parameter for allPackages, defining the target platform for cross builds,
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* and triggering the build of the host derivation (cross built - crossDrv). */
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mapTestOnCross = crossSystem: pkgs.lib.mapAttrsRecursiveCond
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(as: as.type or "" != "job")
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(path: value:
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let
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job = toJob value;
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getPkg = pkgs: pkgs.lib.addMetaAttrs { maintainers = crossMaintainers; }
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(pkgs.lib.getAttrFromPath path pkgs);
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in testOnCross crossSystem job.systems getPkg);
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/* Find all packages that have a meta.platforms field listing the
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supported platforms. */
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packagesWithMetaPlatform = attrSet:
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let pairs = pkgs.lib.concatMap
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(x:
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let pair = builtins.tryEval
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(let
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attrVal = (builtins.getAttr x attrSet);
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in
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{ val = processPackage attrVal;
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attrVal = attrVal;
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attrValIsAttrs = builtins.isAttrs attrVal;
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});
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success = (builtins.tryEval pair.value.attrVal).success;
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in
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pkgs.lib.optional (success && pair.value.attrValIsAttrs && pair.value.val != [])
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{ name = x; value = pair.value.val; })
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(builtins.attrNames attrSet);
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in
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builtins.listToAttrs pairs;
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# May fail as much as it wishes, we will catch the error.
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processPackage = attrSet:
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if attrSet.recurseForDerivations or false then
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packagesWithMetaPlatform attrSet
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else if attrSet.recurseForRelease or false then
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packagesWithMetaPlatform attrSet
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else if attrSet.meta.broken or false then
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[]
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else
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attrSet.meta.hydraPlatforms or (attrSet.meta.platforms or []);
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/* Common platform groups on which to test packages. */
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inherit (pkgs.lib.platforms) unix linux darwin cygwin allBut all mesaPlatforms;
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/* Platform groups for specific kinds of applications. */
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x11Supported = linux;
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gtkSupported = linux;
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ghcSupported = linux;
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}
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