✨ Add script to update location dynamically

bin/locationchanger.sh

@@ -0,0 +1,98 @@
+#!/bin/bash
+
+# Script from eprev with small modification
+# Original script: https://github.com/eprev/locationchanger
+
+INSTALL_DIR=/usr/local/bin
+SCRIPT_NAME=$INSTALL_DIR/locationchanger
+LAUNCH_AGENTS_DIR=$HOME/Library/LaunchAgents
+PLIST_NAME=$LAUNCH_AGENTS_DIR/LocationChanger.plist
+
+sudo -v
+
+sudo mkdir -p $INSTALL_DIR
+cat << "EOT" | sudo tee $SCRIPT_NAME > /dev/null
+#!/bin/bash
+
+# This script changes network location based on the name of Wi-Fi network.
+
+exec 2>&1 >> $HOME/Library/Logs/LocationChanger.log
+
+sleep 3
+
+ts() {
+    date +"[%Y-%m-%d %H:%M] $*"
+}
+
+SSID=`/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -I | grep ' SSID' | cut -d : -f 2- | sed 's/^[ \t]*//'`
+
+LOCATION_NAMES=`scselect | tail -n +2 | cut -d \( -f 2- | sed 's/)$//'`
+CURRENT_LOCATION=`scselect | tail -n +2 | egrep '^\ +\*' | cut -d \( -f 2- | sed 's/)$//'`
+
+ts "Connected to '$SSID'"
+
+CONFIG_FILE=$HOME/.locations/locations.conf
+
+ESSID=`echo "$SSID" | sed 's/[.[\*^$]/\\\\&/g'`
+
+if [ -f $CONFIG_FILE ]; then
+    NEW_SSID=`grep "^$ESSID=" $CONFIG_FILE | cut -d = -f 2`
+    if [ "$NEW_SSID" != "" ]; then
+        ts "Will switch the location to '$NEW_SSID' (configuration file)"
+        SSID=$NEW_SSID
+        ESSID=$NEW_SSID
+      else
+        ts "Will switch the location to '$SSID'"
+    fi
+fi
+
+if echo "$LOCATION_NAMES" | grep -q "^$ESSID$"; then
+    NEW_LOCATION="$SSID"
+  else
+    if echo "$LOCATION_NAMES" | grep -q "^Automatic$"; then
+        NEW_LOCATION=Automatic
+        ts "Location '$SSID' was not found. Will default to 'Automatic'"
+    else
+        ts "Location '$SSID' was not found. The following locations are available: $LOCATION_NAMES"
+        exit 1
+    fi
+fi
+
+if [ "$NEW_LOCATION" != "" ]; then
+    if [ "$NEW_LOCATION" != "$CURRENT_LOCATION" ]; then
+        ts "Changing the location to '$NEW_LOCATION'"
+        scselect "$NEW_LOCATION"
+        SCRIPT="$HOME/.locations/$NEW_LOCATION"
+        if [ -f "$SCRIPT" ]; then
+            ts "Running '$SCRIPT'"
+            "$SCRIPT"
+        fi
+    else
+        ts "Already at '$NEW_LOCATION'"
+    fi
+fi
+EOT
+
+sudo chmod +x $SCRIPT_NAME
+
+mkdir -p $LAUNCH_AGENTS_DIR
+cat > $PLIST_NAME << EOT
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>Label</key>
+    <string>locationchanger</string>
+    <key>ProgramArguments</key>
+    <array>
+        <string>/usr/local/bin/locationchanger</string>
+    </array>
+    <key>WatchPaths</key>
+    <array>
+        <string>/Library/Preferences/SystemConfiguration/com.apple.airport.preferences.plist</string>
+    </array>
+</dict>
+</plist>
+EOT
+
+launchctl load $PLIST_NAME