lucca
114 lines
3.4 KiB
Bash
Executable File
114 lines
3.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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# setup-keyboard-remap-poller.sh
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# =============================
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# Installs a systemd user service that polls for keyboard plug-in / KVM switch events
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# and runs ~/sh/keymaps.sh (your xmodmap stuff) when it detects a change.
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#
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# Why polling? Udev is too early / env broken for X11 tools in most cases.
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set -euo pipefail
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SERVICE_NAME="keyboard-remap-poller"
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SERVICE_FILE="$HOME/.config/systemd/user/$SERVICE_NAME.service"
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POLLER_SCRIPT="$HOME/.local/bin/keyboard-remap-poller.sh"
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KEYMAPS_SCRIPT="$HOME/sh/keymaps.sh"
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if [[ ! -x "$KEYMAPS_SCRIPT" ]]; then
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echo "Error: $KEYMAPS_SCRIPT not found or not executable."
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echo "Make sure it exists and chmod +x it."
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exit 1
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fi
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echo "Creating poller script: $POLLER_SCRIPT"
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mkdir -p "$(dirname "$POLLER_SCRIPT")"
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cat > "$POLLER_SCRIPT" << 'EOP'
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#!/usr/bin/env bash
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# keyboard-remap-poller.sh - checks for keyboard/input changes and runs keymaps.sh
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KEYMAPS_SCRIPT="$HOME/sh/keymaps.sh"
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LOG_FILE="$HOME/.local/share/keyboard-remap.log"
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LAST_COUNT_FILE="$HOME/.cache/keyboard-event-count"
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# Initial count of input devices (rough way to detect plug/unplug/KVM)
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get_input_count() {
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ls /dev/input/event* 2>/dev/null | wc -l
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}
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last_count=$(cat "$LAST_COUNT_FILE" 2>/dev/null || echo "0")
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while true; do
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current_count=$(get_input_count)
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if [[ "$current_count" != "$last_count" ]]; then
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echo "$(date '+%Y-%m-%d %H:%M:%S') - Input device count changed ($last_count → $current_count). Running keymaps.sh" >> "$LOG_FILE"
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# Run your script in X session context
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if [[ -n "${DISPLAY:-}" ]]; then
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"$KEYMAPS_SCRIPT" >> "$LOG_FILE" 2>&1
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else
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# Fallback: try common display :0 or :0.0
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DISPLAY=:0 XAUTHORITY="$HOME/.Xauthority" "$KEYMAPS_SCRIPT" >> "$LOG_FILE" 2>&1 || \
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DISPLAY=:0.0 XAUTHORITY="$HOME/.Xauthority" "$KEYMAPS_SCRIPT" >> "$LOG_FILE" 2>&1
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fi
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echo "$(date '+%Y-%m-%d %H:%M:%S') - keymaps.sh finished (exit code $?)" >> "$LOG_FILE"
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echo "$current_count" > "$LAST_COUNT_FILE"
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fi
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last_count="$current_count"
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sleep 8 # Check every 8 seconds - low overhead
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done
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EOP
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chmod +x "$POLLER_SCRIPT"
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echo "Poller script created."
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echo "Creating systemd user service: $SERVICE_FILE"
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mkdir -p "$(dirname "$SERVICE_FILE")"
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cat > "$SERVICE_FILE" << EOF
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[Unit]
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Description=Poll for keyboard plug-in / KVM events and run keymaps.sh
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After=graphical-session.target
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[Service]
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Type=simple
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ExecStart=$POLLER_SCRIPT
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Restart=always
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RestartSec=5
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[Install]
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WantedBy=graphical-session.target
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EOF
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echo "Service file created."
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echo "Enabling and starting the service (user level)..."
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systemctl --user daemon-reload
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systemctl --user enable --now "$SERVICE_NAME.service"
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echo ""
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echo "=== Setup Done ==="
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echo "The service is now running as your user."
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echo ""
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echo "Test it:"
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echo " 1. Switch KVM or plug/unplug a keyboard"
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echo " 2. Wait 10–20 seconds"
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echo " 3. Check if your xmodmap changes applied (e.g. press your remapped keys)"
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echo " 4. Look at log:"
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echo " tail -f $HOME/.local/share/keyboard-remap.log"
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echo ""
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echo "If it doesn't trigger reliably:"
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echo " - Increase sleep 8 → sleep 5 in $POLLER_SCRIPT"
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echo " - Or if DISPLAY is wrong, edit the DISPLAY/XAUTHORITY lines"
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echo ""
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echo "To stop/disable:"
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echo " systemctl --user stop $SERVICE_NAME.service"
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echo " systemctl --user disable $SERVICE_NAME.service"
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echo ""
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echo "Enjoy your remaps without F10 every time!"
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