Bash/ZSH for changing git/npm/global proxy info based on current Wifi SSID on Mac

proxy_switch.sh

alias airport="/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport"

CURRENT_WIFI_SSID=$(eval airport -I | grep '^[[:space:]]*SSID' | sed -e 's/^.*SSID: //g')

proxy() {
  export addy='http://www-west.sony.com:80'
  git config --global http.proxy $addy
  git config --global https.proxy $addy
  npm config set http-proxy $addy
  npm config set https-proxy $addy
  export HTTP_PROXY=$addy
  export HTTPS_PROXY=$addy
  export http_proxy=$HTTP_PROXY
  echo 'Using proxy'
}

noproxy() {
  export addy=''
  git config --global --unset-all http.proxy
  git config --global --unset-all https.proxy
  npm config delete http-proxy
  npm config delete https-proxy
  export HTTP_PROXY=$addy
  export HTTPS_PROXY=$addy
  export http_proxy=$HTTP_PROXY
  echo 'Not using proxy'
}

[[ $CURRENT_WIFI_SSID != 'SWing' ]] && noproxy > /dev/null
[[ $CURRENT_WIFI_SSID == 'SWing' ]] && proxy > /dev/null