Bash Proxy Script for Corporate Networks

proxy.sh

#!/bin/bash

PROXY=<PROXY>
BYPASS_PROXY="localhost,127.0.0.1,<BYPASS_PROXY>"
ENTERPRISE_GITHUB="<ENTERPRISE_GITHUB>"

if [[ "$1" = "on" ]]; then
    # Configure CLI Proxy Settings for Corporate Network
    echo -n "Turning on proxy..."

    # Set Proxy Environment Variables
    export http_proxy=$PROXY
    export HTTP_PROXY=$PROXY
    export https_proxy=$PROXY
    export HTTPS_PROXY=$PROXY
    export no_proxy=$BYPASS_PROXY
    export NO_PROXY=$BYPASS_PROXY

    # Set npm Proxy Settings
    npm config set proxy $PROXY
    npm config set https-proxy $PROXY

    # Clear git Proxy Tunnel Settings (from `proxy tunnel`)
    git config --global --unset http.https://$ENTERPRISE_GITHUB.proxy
    git config --global --remove-section http.https://$ENTERPRISE_GITHUB > /dev/null 2>&1 # Suppress fatal: No such section!
    git config --global --unset url.https://$ENTERPRISE_GITHUB/.insteadOf
    git config --global --remove-section url.https://$ENTERPRISE_GITHUB/ > /dev/null 2>&1 # Suppress fatal: No such section!

    # Set git Proxy Settings
    git config --global url.ssh://$ENTERPRISE_GITHUB/.insteadOf https://$ENTERPRISE_GITHUB/
    git config --global http.proxy $PROXY

    echo "done."
elif [[ "$1" = "off" ]]; then
    # Configure CLI Proxy Settings for Non-Corporate Networks
    echo -n "Turning off proxy..."

    # Clear Proxy Environment Variables
    unset http_proxy
    unset HTTP_PROXY
    unset https_proxy
    unset HTTPS_PROXY
    unset no_proxy
    unset NO_PROXY

    # Clear npm Proxy Settings
    npm config delete proxy
    npm config delete https-proxy

    # Clear git Corporate Proxy Settings (from `proxy on`)
    git config --global --unset http.proxy
    git config --global --remove-section http > /dev/null 2>&1 # Suppress fatal: No such section!
    git config --global --unset url.ssh://$ENTERPRISE_GITHUB/.insteadOf
    git config --global --remove-section url.ssh://$ENTERPRISE_GITHUB/ > /dev/null 2>&1 # Suppress fatal: No such section!
    
    # Clear git Proxy Tunnel Settings (from `proxy tunnel`)
    git config --global --unset http.https://$ENTERPRISE_GITHUB.proxy
    git config --global --remove-section http.https://$ENTERPRISE_GITHUB > /dev/null 2>&1 # Suppress fatal: No such section!
    git config --global --unset url.https://$ENTERPRISE_GITHUB/.insteadOf
    git config --global --remove-section url.https://$ENTERPRISE_GITHUB/ > /dev/null 2>&1 # Suppress fatal: No such section!

    echo "done."
else
    echo "Usage: proxy [on|off]"
fi