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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.karabiner-elements;
parentAppDir = "/Applications/.Nix-Karabiner";
in
{
options.services.karabiner-elements = {
enable = mkEnableOption "Karabiner-Elements";
package = mkPackageOption pkgs "karabiner-elements" { };
};
config = mkIf cfg.enable {
environment.systemPackages = [ cfg.package ];
system.activationScripts.preActivation.text = ''
rm -rf ${parentAppDir}
mkdir -p ${parentAppDir}
# Kernel extensions must reside inside of /Applications, they cannot be symlinks
cp -r ${cfg.package.driver}/Applications/.Karabiner-VirtualHIDDevice-Manager.app ${parentAppDir}
'';
system.activationScripts.postActivation.text = ''
echo "attempt to activate karabiner system extension and start daemons" >&2
launchctl unload /Library/LaunchDaemons/org.nixos.start_karabiner_daemons.plist
launchctl load -w /Library/LaunchDaemons/org.nixos.start_karabiner_daemons.plist
'';
# We need the karabiner_grabber and karabiner_observer daemons to run after the
# Nix Store has been mounted, but we can't use wait4path as they need to be
# executed directly for the Input Monitoring permission. We also want these
# daemons to auto restart but if they start up without the Nix Store they will
# refuse to run again until they've been unloaded and loaded back in so we can
# use a helper daemon to start them. We also only want to run the daemons after
# the system extension is activated, so we can call activate from the manager
# which will block until the system extension is activated.
launchd.daemons.start_karabiner_daemons = {
script = ''
${parentAppDir}/.Karabiner-VirtualHIDDevice-Manager.app/Contents/MacOS/Karabiner-VirtualHIDDevice-Manager activate
launchctl kickstart system/org.pqrs.karabiner.karabiner_grabber
launchctl kickstart system/org.pqrs.karabiner.karabiner_observer
'';
serviceConfig.Label = "org.nixos.start_karabiner_daemons";
serviceConfig.RunAtLoad = true;
};
launchd.daemons.karabiner_grabber = {
serviceConfig.ProgramArguments = [
"${cfg.package}/Library/Application Support/org.pqrs/Karabiner-Elements/bin/karabiner_grabber"
];
serviceConfig.ProcessType = "Interactive";
serviceConfig.Label = "org.pqrs.karabiner.karabiner_grabber";
serviceConfig.KeepAlive.SuccessfulExit = true;
serviceConfig.KeepAlive.Crashed = true;
serviceConfig.KeepAlive.AfterInitialDemand = true;
};
launchd.daemons.karabiner_observer = {
serviceConfig.ProgramArguments = [
"${cfg.package}/Library/Application Support/org.pqrs/Karabiner-Elements/bin/karabiner_observer"
];
serviceConfig.Label = "org.pqrs.karabiner.karabiner_observer";
serviceConfig.KeepAlive.SuccessfulExit = true;
serviceConfig.KeepAlive.Crashed = true;
serviceConfig.KeepAlive.AfterInitialDemand = true;
};
launchd.daemons.Karabiner-DriverKit-VirtualHIDDeviceClient = {
command = "\"${cfg.package.driver}/Library/Application Support/org.pqrs/Karabiner-DriverKit-VirtualHIDDevice/Applications/Karabiner-DriverKit-VirtualHIDDeviceClient.app/Contents/MacOS/Karabiner-DriverKit-VirtualHIDDeviceClient\"";
serviceConfig.ProcessType = "Interactive";
serviceConfig.Label = "org.pqrs.Karabiner-DriverKit-VirtualHIDDeviceClient";
serviceConfig.KeepAlive = true;
};
# Normally karabiner_console_user_server calls activate on the manager but
# because we use a custom location we need to call activate manually.
launchd.user.agents.activate_karabiner_system_ext = {
serviceConfig.ProgramArguments = [
"${parentAppDir}/.Karabiner-VirtualHIDDevice-Manager.app/Contents/MacOS/Karabiner-VirtualHIDDevice-Manager" "activate"
];
serviceConfig.RunAtLoad = true;
};
# We need this to run every reboot as /run gets nuked so we can't put this
# inside the preActivation script as it only gets run on darwin-rebuild switch.
launchd.daemons.setsuid_karabiner_session_monitor = {
script = ''
rm -rf /run/wrappers
mkdir -p /run/wrappers/bin
install -m4555 "${cfg.package}/Library/Application Support/org.pqrs/Karabiner-Elements/bin/karabiner_session_monitor" /run/wrappers/bin
'';
serviceConfig.RunAtLoad = true;
serviceConfig.KeepAlive.SuccessfulExit = false;
};
launchd.user.agents.karabiner_session_monitor = {
serviceConfig.ProgramArguments = [
"/bin/sh" "-c"
"/bin/wait4path /run/wrappers/bin && /run/wrappers/bin/karabiner_session_monitor"
];
serviceConfig.Label = "org.pqrs.karabiner.karabiner_session_monitor";
serviceConfig.KeepAlive = true;
};
environment.userLaunchAgents."org.pqrs.karabiner.agent.karabiner_grabber.plist".source = "${cfg.package}/Library/LaunchAgents/org.pqrs.karabiner.agent.karabiner_grabber.plist";
environment.userLaunchAgents."org.pqrs.karabiner.agent.karabiner_observer.plist".source = "${cfg.package}/Library/LaunchAgents/org.pqrs.karabiner.agent.karabiner_observer.plist";
environment.userLaunchAgents."org.pqrs.karabiner.karabiner_console_user_server.plist".source = "${cfg.package}/Library/LaunchAgents/org.pqrs.karabiner.karabiner_console_user_server.plist";
};
}
|
