Files
nix/users/configs/gpg-agent/default.nix
2024-06-21 23:39:18 +03:00

66 lines
1.9 KiB
Nix

{ user ? throw "user argument is required" }: { config, lib, pkgs, ... }:
let
hmConfig = config.home-manager.users."${user.name}";
gpgPath = "${hmConfig.xdg.dataHome}/gnupg";
in
{
home-manager.users."${user.name}" = {
programs.gpg = {
enable = true;
homedir = gpgPath;
};
services.gpg-agent = {
enable = true;
defaultCacheTtl = 31536000;
maxCacheTtl = 31536000;
};
systemd.user = {
services.gpg-agent-import = let
init = pkgs.writeShellScriptBin "import-gpg-keys" ''
export GNUPGHOME=${gpgPath}
for keyfile in "${user.home}"/.config/sops-nix/secrets/gpg-agent/*.key; do
passfile="''${keyfile%.key}.pass"
if [ -f "$passfile" ]; then
${pkgs.gnupg}/bin/gpg2 --batch --yes --pinentry-mode loopback --passphrase-file "$passfile" --import "$keyfile"
else
${pkgs.gnupg}/bin/gpg2 --batch --yes --import "$keyfile"
fi
${pkgs.gnupg}/bin/gpg2 --with-colons --import-options show-only --import "$keyfile" | grep '^fpr' | cut -d: -f10 | while read -r KEY_ID; do
echo "$KEY_ID:6:" >> "${gpgPath}"/otrust.txt
done
done
${pkgs.gnupg}/bin/gpg2 --import-ownertrust "${gpgPath}"/otrust.txt
rm "${gpgPath}"/otrust.txt
'';
in {
Unit = {
Description = "Auto-import GPG keys";
Requires = [ "sops-nix.service" "gpg-agent.socket" ];
After = [ "sops-nix.service" "gpg-agent.socket" ];
};
Service = {
Type = "oneshot";
ExecStart = "${init}/bin/import-gpg-keys";
};
Install = { WantedBy = [ "default.target" ]; };
};
tmpfiles.rules = [ "d ${hmConfig.xdg.dataHome}/gnupg 0700 ${user.name} users -" ];
};
sops.secrets = {
"gpg-agent/pgp.key" = { };
"gpg-agent/pgp.pass" = { };
};
};
}