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76 { pkgs, ... }:
{
launchd.user.agents.locationchanger = {
serviceConfig = {
Label = "org.nixos.locationchanger";
RunAtLoad = true;
WatchPaths = [ "/Library/Preferences/SystemConfiguration" ];
};
script = ''
# 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] $*"
}
ID=`whoami`
if [ "$ID" == "root" ]; then
ts "Running as root will read a bad config, exiting."
exit 1;
fi
SSID=`networksetup -listallhardwareports | awk '/Wi-Fi/{getline; print $2}' | xargs networksetup -getairportnetwork | awk '{print $NF}'`
LOCATION_NAMES=`networksetup -listlocations`
CURRENT_LOCATION=`networksetup -getcurrentlocation`
CONFIG_FILE=$HOME/.locations/locations.conf
ts "Connected to '$SSID'"
ts "Probing '$CONFIG_FILE'"
if [ -f $CONFIG_FILE ]; then
ts "Reading to '$CONFIG_FILE'"
ESSID=`echo "$SSID" | sed 's/[.[\*^$]/\\\\&/g'`
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
else
ts "Will switch the location to '$SSID'"
fi
fi
ESSID=`echo "$SSID" | sed 's/[.[\*^$]/\\\\&/g'`
if echo "$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
'';
};
}