I installed input-remapper. I was able to create and apply a configuration using the GUI. But each time and log out or my machine goes to sleep, I have to restart the application to apply the configuration again.
How can the changes be permanent, so my mapping continues to work after a log-out or a sleep?
Here is my solution. I made two services in my Nixos config file :
systemd.services.StartInputRemapperDaemonAtLogin = {
enable = true;
description = "Start input-remapper daemon after login";
unitConfig = {
Type = "simple";
};
script = lib.getExe(pkgs.writeShellApplication {
name = "start-input-mapper-daemon";
runtimeInputs = with pkgs; [input-remapper procps su];
text = ''
until pgrep -u pierre; do
sleep 1
done
sleep 2
until [ $(pgrep -c -u root "input-remapper") -eq 4 ]; do
input-remapper-service&
sleep 1
input-remapper-helper&
sleep 1
done
su pierre -c "input-remapper-control --command stop-all"
su pierre -c "input-remapper-control --command autoload"
sleep infinity
'';
});
wantedBy = [ "default.target" ];
};
systemd.services.ReloadInputRemapperAfterSleep = {
enable = true;
description = "Reload input-remapper config after sleep";
after = [ "suspend.target" ];
unitConfig = {
Type = "forking";
};
serviceConfig.User = "pierre";
script = lib.getExe(pkgs.writeShellApplication {
name = "reload-input-mapper-config";
runtimeInputs = with pkgs; [input-remapper ps gawk];
text = ''
until [[ $(ps aux | awk '$11~"input-remapper" && $12="<defunct>" {print $0}' | wc -l) -eq 0 ]]; do
input-remapper-control --command stop-all
input-remapper-control --command autoload
sleep 1
done
'';
});
wantedBy = [ "suspend.target" ];
};
Now, my mouse buttons are mapped automatically when I log in, and I don’t lose my mapping when my machine comes back from sleep.
When I log in, for a few seconds, I must both move my mouse because otherwise it is not always detected properly, and also avoid clicking mouse buttons for the mapping to work properly.
