Toggling Proxy Settings for Git, NPM, Bower and Package Control (Mac OS X) automatically

set_proxy.sh

#! /bin/sh

# Configure the below variables with your respective Keychain and proxy information
# Grabs your user password from Keychain
export SECRET="`security find-generic-password -w -s <PASSWORD_PROFILE>`"
AUTH="$USER:$SECRET"
PROXY='<http://PROXY:PORT>'
AUTH_PROXY=<'http://'$AUTH'@PROXY:PORT>'

if [ "$1" == "on" ]; then

  echo "Exporting proxy."
  export http_proxy=$AUTH_PROXY
  export https_proxy=$AUTH_PROXY

  echo "Setting git proxy to $AUTH_PROXY."
  git config --global http.proxy $AUTH_PROXY
  git config --global https.proxy $AUTH_PROXY

  echo "Setting npm proxy to $AUTH_PROXY."
  npm config set proxy $AUTH_PROXY
  npm config set https-proxy $AUTH_PROXY

  echo "Setting bower proxy to $AUTH_PROXY."
  sed -i.bak 's|"proxy": ""|"proxy": "'"$AUTH_PROXY"'"|g' $HOME/.bowerrc
  sed -i.bak 's|"https-proxy": ""|"https-proxy": "'"$AUTH_PROXY"'"|g' $HOME/.bowerrc

  echo "Setting Package Control proxy to $AUTH_PROXY."
  sed -i.bak 's|"http_proxy": ""|"http_proxy": "'"$PROXY"'"|g' "$HOME/Library/Application Support/Sublime Text 3/Packages/User/Package Control.sublime-settings"
  sed -i.bak 's|"https_proxy": ""|"https_proxy": "'"$PROXY"'"|g' "$HOME/Library/Application Support/Sublime Text 3/Packages/User/Package Control.sublime-settings"
  sed -i.bak 's|"proxy_username": ""|"proxy_username": "'"$USER"'"|g' "$HOME/Library/Application Support/Sublime Text 3/Packages/User/Package Control.sublime-settings"
  sed -i.bak 's|"proxy_password": ""|"proxy_password": "'"$SECRET"'"|g' "$HOME/Library/Application Support/Sublime Text 3/Packages/User/Package Control.sublime-settings"

else

  echo "Resetting proxy."
  export http_proxy=
  export https_proxy=

  echo "Resetting git proxy."
  git config --global --unset http.proxy > /dev/null 2>&1
  git config --global --unset https.proxy > /dev/null 2>&1

  echo "Resetting npm proxy."
  npm config rm proxy > /dev/null 2>&1
  npm config rm https-proxy > /dev/null 2>&1

  echo "Resetting bower proxy."
  sed -i.bak 's|"proxy": "'"$AUTH_PROXY"'"|"proxy": ""|g' $HOME/.bowerrc
  sed -i.bak 's|"https-proxy": "'"$AUTH_PROXY"'"|"https-proxy": ""|g' $HOME/.bowerrc

  echo "Resetting Package Control proxy."
  sed -i.bak 's|"http_proxy": "'"$PROXY"'"|"http_proxy": ""|g' "$HOME/Library/Application Support/Sublime Text 3/Packages/User/Package Control.sublime-settings"
  sed -i.bak 's|"https_proxy": "'"$PROXY"'"|"https_proxy": ""|g' "$HOME/Library/Application Support/Sublime Text 3/Packages/User/Package Control.sublime-settings"
  sed -i.bak 's|"proxy_username": "'"$USER"'"|"proxy_username": ""|g' "$HOME/Library/Application Support/Sublime Text 3/Packages/User/Package Control.sublime-settings"
  sed -i.bak 's|"proxy_password": "'"$SECRET"'"|"proxy_password": ""|g' "$HOME/Library/Application Support/Sublime Text 3/Packages/User/Package Control.sublime-settings"

fi

Modified for proper package control configuration and variabilizing sensitive information.

I'm not sure if sed is correctly implemented here--providing a regular expression might prove a better alternative in substitutions than doing a static check against strings.