165 lines
6 KiB
Nix
165 lines
6 KiB
Nix
{ supportedSystems
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, packageSet ? (import ../..)
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, scrubJobs ? true
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, # Attributes passed to nixpkgs. Don't build packages marked as unfree.
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nixpkgsArgs ? { config = { allowUnfree = false; inHydra = true; }; }
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}:
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let
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lib = import ../../lib;
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in with lib;
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rec {
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pkgs = packageSet (lib.recursiveUpdate { system = "x86_64-linux"; config.allowUnsupportedSystem = true; } nixpkgsArgs);
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inherit lib;
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hydraJob' = if scrubJobs then hydraJob else id;
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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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mkPkgsFor = crossSystem: let
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packageSet' = args: packageSet (args // { inherit crossSystem; } // nixpkgsArgs);
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pkgs_x86_64_linux = packageSet' { system = "x86_64-linux"; };
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pkgs_i686_linux = packageSet' { system = "i686-linux"; };
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pkgs_aarch64_linux = packageSet' { system = "aarch64-linux"; };
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pkgs_armv6l_linux = packageSet' { system = "armv6l-linux"; };
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pkgs_armv7l_linux = packageSet' { system = "armv7l-linux"; };
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pkgs_x86_64_darwin = packageSet' { system = "x86_64-darwin"; };
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pkgs_x86_64_freebsd = packageSet' { system = "x86_64-freebsd"; };
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pkgs_i686_freebsd = packageSet' { system = "i686-freebsd"; };
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pkgs_i686_cygwin = packageSet' { system = "i686-cygwin"; };
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pkgs_x86_64_cygwin = packageSet' { system = "x86_64-cygwin"; };
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in 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 == "aarch64-linux" then pkgs_aarch64_linux
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else if system == "armv6l-linux" then pkgs_armv6l_linux
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else if system == "armv7l-linux" then pkgs_armv7l_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 if system == "x86_64-cygwin" then pkgs_x86_64_cygwin
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else abort "unsupported system type: ${system}";
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pkgsFor = pkgsForCross null;
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# More poor man's memoisation
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pkgsForCross = let
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examplesByConfig = lib.flip lib.mapAttrs'
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(builtins.removeAttrs lib.systems.examples [ "riscv" ])
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(_: crossSystem: nameValuePair crossSystem.config {
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inherit crossSystem;
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pkgsFor = mkPkgsFor crossSystem;
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});
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native = mkPkgsFor null;
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in crossSystem: let
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candidate = examplesByConfig.${crossSystem.config} or null;
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in if crossSystem == null
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then native
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else if candidate != null && lib.matchAttrs crossSystem candidate.crossSystem
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then candidate.pkgsFor
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else mkPkgsFor crossSystem; # uncached fallback
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# Given a list of 'meta.platforms'-style patterns, return the sublist of
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# `supportedSystems` containing systems that matches at least one of the given
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# patterns.
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#
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# This is written in a funny way so that we only elaborate the systems once.
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supportedMatches = let
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supportedPlatforms = map
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(system: lib.systems.elaborate { inherit system; })
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supportedSystems;
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in metaPatterns: let
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anyMatch = platform:
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lib.any (lib.meta.platformMatch platform) metaPatterns;
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matchingPlatforms = lib.filter anyMatch supportedPlatforms;
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in map ({ system, ...}: system) matchingPlatforms;
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assertTrue = bool:
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if bool
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then pkgs.runCommand "evaluated-to-true" {} "touch $out"
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else pkgs.runCommand "evaluated-to-false" {} "false";
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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 = [ maintainers.viric ];
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# Generate attributes for all supported systems.
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forAllSystems = genAttrs supportedSystems;
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# Generate attributes for all sytems matching at least one of the given
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# patterns
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forMatchingSystems = metaPatterns: genAttrs (supportedMatches metaPatterns);
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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 = testOnCross null;
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/* Similar to the testOn function, but with an additional
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'crossSystem' parameter for packageSet', defining the target
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platform for cross builds. */
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testOnCross = crossSystem: metaPatterns: f: forMatchingSystems metaPatterns
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(system: hydraJob' (f (pkgsForCross crossSystem system)));
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/* Given a nested set where the leaf nodes are lists of platforms,
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map each leaf node to `testOn [platforms...] (pkgs:
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pkgs.<attrPath>)'. */
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mapTestOn = _mapTestOnHelper id null;
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_mapTestOnHelper = f: crossSystem: mapAttrsRecursive
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(path: metaPatterns: testOnCross crossSystem metaPatterns
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(pkgs: f (getAttrFromPath path pkgs)));
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/* Similar to the testOn function, but with an additional 'crossSystem'
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* parameter for packageSet', defining the target platform for cross builds,
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* and triggering the build of the host derivation. */
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mapTestOnCross = _mapTestOnHelper
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(addMetaAttrs { maintainers = crossMaintainers; });
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/* Recursively map a (nested) set of derivations to an isomorphic
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set of meta.platforms values. */
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packagePlatforms = mapAttrs (name: value:
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let res = builtins.tryEval (
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if isDerivation value then
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value.meta.hydraPlatforms
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or (supportedMatches (value.meta.platforms or [ "x86_64-linux" ]))
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else if value.recurseForDerivations or false || value.recurseForRelease or false then
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packagePlatforms value
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else
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[]);
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in if res.success then res.value else []
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);
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/* Common platform groups on which to test packages. */
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inherit (platforms) unix linux darwin cygwin 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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