Various optimisations

birdnet-pi/rootfs/helpers/timedatectl

@@ -0,0 +1,71 @@
+#!/bin/bash
+
+# Function to show the current timezone, with two alternative methods
+show_timezone() {
+    # Check if the /etc/timezone file exists
+    if [ -f /etc/timezone ]; then
+        timezone=$(cat /etc/timezone)
+    elif [ -f /etc/localtime ]; then
+        timezone=$(readlink /etc/localtime)
+        timezone=${timezone/\/usr\/share\/zoneinfo\//}
+    else
+        timezone="Cannot determine timezone."
+    fi
+    echo "$timezone"
+}
+
+# Function to set the timezone
+set_timezone() {
+    new_timezone="$1"
+    echo "$new_timezone" | sudo tee /etc/timezone >/dev/null
+    sudo ln -sf /usr/share/zoneinfo/"$new_timezone" /etc/localtime
+    if [ -f /etc/environment ]; then sudo sed -i "/TZ/c\TZ=$new_timezone" /etc/environment; fi
+    if [ -d /var/run/s6/container_environment ]; then sudo echo "$new_timezone" > /var/run/s6/container_environment/TZ; fi
+    echo "$new_timezone"
+}
+
+# Main script
+case "$1" in
+    "set-ntp")
+        case "$2" in
+            "false")
+                sudo systemctl disable systemd-timesyncd
+                echo "NTP disabled"
+                ;;
+            "true")
+                sudo systemctl enable systemd-timesyncd
+                sudo systemctl start systemd-timesyncd
+                echo "NTP enabled"
+                ;;
+            *)
+                echo "Invalid argument for set-ntp. Use 'false' or 'true'."
+                ;;
+        esac
+        ;;
+    "show --value --property=Timezone")
+        show_timezone
+        ;;
+    "set-timezone")
+        set_timezone "$2"
+        ;;
+    *)
+        # Get values
+        local_time="$(date)"
+        utc_time="$(date -u)"
+        time_zone="$(show_timezone)"
+        # Check if NTP is used
+        if sudo systemctl status systemd-timesyncd | grep -q "active"; then
+            ntp_status="yes"
+            ntp_service="active"
+        else
+            ntp_status="no"
+            ntp_service="inactive"
+        fi
+        # Print the information
+        echo "Local time: $local_time"
+        echo "Universal time: $utc_time"
+        echo "Time zone: $time_zone"
+        echo "Network time on: $ntp_status"
+        echo "NTP service: $ntp_service"
+        ;;
+esac