dotfiles/extra-builtins.nix

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{ exec, ... }: {
secrets = exec [ "cat" "/etc/nixos/private/default.nix" ] {
# compress and base64 the file to make it representable in nix,
# then decompress it back in a derivation (shouldn't there be a better way...)
copyToStore = pkgs: path:
let
archive = exec [
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"/bin/sh" "-c"
"echo '\"' && (cd /etc/nixos/private && tar czv ${path} 2>/dev/null | base64 -w0) && echo '\"'"
];
in "${pkgs.stdenvNoCC.mkDerivation {
name = "private";
unpackPhase = "true";
buildPhase = "true";
installPhase = ''
mkdir -p $out
cd $out
echo "${archive}" | base64 -d | tar xzv
'';
url = builtins.toFile "private.tar.gz.base64" archive;
}}/${path}";
};
}