maintainers/scripts/build.nix

   1 { maintainer
   2 , localSystem ? { system = args.system or builtins.currentSystem; }
   3 , system ? localSystem.system
   4 , crossSystem ? localSystem
   5 , ...
   6 }@args:
   7
   8 # based on update.nix
   9 # nix-build build.nix --argstr maintainer <yourname>
  10
  11 # to build for aarch64-linux using boot.binfmt.emulatedSystems:
  12 # nix-build build.nix --argstr maintainer <yourname> --argstr system aarch64-linux
  13
  14 let
  15   pkgs = import ./../../default.nix (removeAttrs args [ "maintainer" ]);
  16   maintainer_ = pkgs.lib.maintainers.${maintainer};
  17   packagesWith = cond: return: set:
  18     (pkgs.lib.flatten
  19       (pkgs.lib.mapAttrsToList
  20         (name: pkg:
  21           let
  22             result = builtins.tryEval
  23               (
  24                 if pkgs.lib.isDerivation pkg && cond name pkg then
  25                   # Skip packages whose closure fails on evaluation.
  26                   # This happens for pkgs like `python27Packages.djangoql`
  27                   # that have disabled Python pkgs as dependencies.
  28                   builtins.seq pkg.outPath
  29                     [ (return name pkg) ]
  30                 else if pkg.recurseForDerivations or false || pkg.recurseForRelease or false
  31                 then packagesWith cond return pkg
  32                 else [ ]
  33               );
  34           in
  35           if result.success then result.value
  36           else [ ]
  37         )
  38         set
  39       )
  40     );
  41 in
  42 packagesWith
  43   (name: pkg:
  44     (
  45       if builtins.hasAttr "meta" pkg && builtins.hasAttr "maintainers" pkg.meta
  46       then (
  47         if builtins.isList pkg.meta.maintainers
  48         then builtins.elem maintainer_ pkg.meta.maintainers
  49         else maintainer_ == pkg.meta.maintainers
  50       )
  51       else false
  52     )
  53   )
  54   (name: pkg: pkg)
  55   pkgs