Install GAMADV-XTD3 alongside GAM

install_GAMADV-XTD3_alongside_GAM.sh

#!/usr/bin/env bash
#          Name: Install GAMADV-XTD3 alongside GAM
#         Usage: ./install_GAMADV-XTD3_alongside_GAM.sh
#   Description: Installs latest version of GAMADV-XTD3 alongside GAM, and creates 'gam3' alias for it
#        Author: Zoë Kelly (zoe@starshade.ca)
#       License: MIT
#       Created: 2021-12
#       Updated: 
##         Note: For macOS only, and assumes original GAM was installed in the regular way

is_macos() { uname -s | grep -qs "Darwin"; }
shh() { "$@" > /dev/null 2>&1; }
bin_exists() { shh type "$@"; }
bold_and_blue() { tput setaf 4; tput bold; }
bold_and_yellow() { tput setaf 3; tput bold; }
bold_and_red() { tput setaf 1; tput bold; }
reset_font() { tput sgr0; }

bold_and_blue
if ! is_macos; then echo "This script currently only supports macOS"; exit; fi
if ! bin_exists jq; then echo "'jq' binary not found. Please install using 'brew install jq'"; exit; fi
echo "Welcome!"
reset_font

if [[ ! -d "$HOME/gam3_config" ]]; then 
	mkdir "$HOME/gam3_config"
else
	bold_and_red
	read -rp "The gam3_config folder already exists. Do you need to erase and reinstall GAMADV-XTD3 and associated configs? (y/n): " reinstall_choice
	reset_font
	if [[ "$reinstall_choice" == "y" ]]; then
		rm -rf "$HOME/bin/gamadv-xtd3"
		rm -rf "$HOME/gam3_config"
		mkdir "$HOME/gam3_config"
		echo "Reset complete"
	else
		echo "Script aborted."
		exit
	fi
fi

if [[ ! -d "$HOME/GAMWork" ]]; then mkdir "$HOME/GAMWork"; fi

echo "Installing GAMADV-XTD3..."
if [[ ! -f "$HOME/bin/gamadv-xtd3/gam" ]]; then
	curl -L "$(curl -s https://api.github.com/repos/taers232c/GAMADV-XTD3/releases | jq -r '.[0].assets[] | select(.name | contains("macos")) | .browser_download_url')" -o "/tmp/gam3_latest.tar"
	tar -x -f /tmp/gam3_latest.tar -C "$HOME/bin/"
	rm -f /tmp/gam3_latest.tar
fi

export OLDGAMPATH="$HOME/bin/gam"

export GAMCFGDIR="$HOME/gam3_config"
echo "export GAMCFGDIR=\"$HOME/gam3_config\"" >> "$HOME/.zshrc"

alias gam3="$HOME/bin/gamadv-xtd3/gam"
echo "alias gam3=\"$HOME/bin/gamadv-xtd3/gam\"" >> "$HOME/.zshrc"

cd "$HOME/bin/gamadv-xtd3"
echo "Verifying GAMADV-XTD3 conf"
./gam config verify

echo
bold_and_blue; echo "Enter your work email below and follow the remaining prompts."; reset_font
./gam update project

rm -f "$HOME/gam3_config/oauth2.txt"
echo
sleep 1
bold_and_blue; echo "In the next section, enter 'c', press return, then follow the remaining prompts."; reset_font
./gam oauth create

echo
bold_and_yellow; echo "You must close and re-open your Terminal (or run 'source $HOME/.zshrc') before using GAMADV-XTD3"
bold_and_blue; echo "'gam3' should be used instead of 'gam' when following any scripts or steps designed for GAMADV-XTD3"
echo "GAMADV-XTD3 install script complete!"
reset_font