{stdenv, mercurial, nix}: {name ? null, url, rev ? null, md5 ? null, sha256 ? null}: # TODO: statically check if mercurial as the https support if the url starts woth https. stdenv.mkDerivation { name = "hg-archive" + (if name != null then "-${name}" else ""); builder = ./builder.sh; buildInputs = [mercurial]; # Nix <= 0.7 compatibility. id = md5; outputHashAlgo = if md5 != null then "md5" else "sha256"; outputHashMode = "recursive"; outputHash = if md5 != null then md5 else sha256; inherit url rev; preferLocalBuild = true; }