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tv slock service: support multiple displays

This commit is contained in:
tv 2019-01-07 11:23:25 +01:00
parent 6e5a61b676
commit 7c84b32f2d
1 changed files with 11 additions and 9 deletions
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20
tv/3modules/slock.nix
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@ -5,10 +5,12 @@ in {
options.tv.slock = {
enable = mkEnableOption "tv.slock";
package = mkOption {
default = pkgs.execBin "slock" rec {
filename = "${pkgs.systemd}/bin/systemctl";
argv = [ filename "start" "slock-${cfg.user.name}.service" ];
};
default = pkgs.writeDashBin "slock" ''
set -efu
display=''${DISPLAY#:}
service=slock-$LOGNAME@$display.service
exec ${pkgs.systemd}/bin/systemctl start "$service"
'';
type = types.package;
};
user = mkOption {
@ -18,16 +20,16 @@ in {
config = mkIf cfg.enable {
security.polkit.extraConfig = /* js */ ''
polkit.addRule(function(action, subject) {
if (action.id == "org.freedesktop.systemd1.manage-units" &&
action.lookup("unit") == "slock-${cfg.user.name}.service" &&
subject.user == ${toJSON cfg.user.name}) {
if (action.id === "org.freedesktop.systemd1.manage-units" &&
subject.user === ${toJSON cfg.user.name} &&
/^slock-${cfg.user.name}@[0-9]+\.service$/.test(action.lookup("unit")) ) {
return polkit.Result.YES;
}
});
'';
systemd.services."slock-${cfg.user.name}" = {
systemd.services."slock-${cfg.user.name}@" = {
environment = {
DISPLAY = ":${toString config.services.xserver.display}";
DISPLAY = ":%I";
LD_PRELOAD = pkgs.runCommandCC "slock-${cfg.user.name}.so" {
passAsFile = ["text"];
text = /* c */ ''