urbit/nix/lib/make-release-tarball.nix

31 lines
696 B
Nix

{ lib, stdenvNoCC, coreutils }:
{ name, extension ? "tgz", contents # { target = source, ... }
}:
let
transforms = builtins.concatStringsSep " " (lib.mapAttrsToList
(target: source: ''--transform "s,${source},${target},"'') contents);
sources = builtins.concatStringsSep " "
(lib.mapAttrsToList (_target: source: "${source}") contents);
in stdenvNoCC.mkDerivation {
name = "${name}.${extension}";
phases = [ "buildPhase" ];
nativeBuildInputs = [ coreutils ];
buildPhase = ''
tar -vczf $out \
--owner=0 --group=0 --mode=u+rw,uga+r \
--absolute-names \
--hard-dereference \
${transforms} \
${sources}
'';
preferLocalBuild = true;
}