Sync Homebrew installations via Microsoft OneDrive

brew-sync.sh

#!/bin/bash

# Sync Homebrew installations via Microsoft OneDrive
#

# Colored Output
b='\033[1;34m' # Blue
w='\033[1;30m' # White
c='\033[0m' # No Color

BREW="/usr/local/bin/brew"
ONEDRIVE="$HOME/OneDrive/.backup/Homebrew"
CASK="$BREW cask"
LIST="$BREW list"

# First get local settings...
echo -e "${w}➔ ${b}Reading local settings ...${c}"
rm -f /tmp/brew-sync.*
$BREW tap > /tmp/brew-sync.taps
$BREW list > /tmp/brew-sync.installed
$CASK list > /tmp/brew-cask.installed

# ...then combine it with list in OneDrive
echo -e "${w}➔ ${b}Reading settings from OneDrive ...${c}"
[ -e "$ONEDRIVE"/brew-sync.taps ] && cat "${ONEDRIVE}"/brew-sync.taps >> /tmp/brew-sync.taps
[ -e "$ONEDRIVE"/brew-sync.installed ] && cat "${ONEDRIVE}"/brew-sync.installed >> /tmp/brew-sync.installed
[ -e "${ONEDRIVE}"/brew-cask.installed ] && cat "${ONEDRIVE}"/brew-cask.installed >> /tmp/brew-cask.installed

# Make the lists unique and sync into OneDrive
echo -e "${w}➔ ${b}Syncing to OneDrive ...${c}"
mkdir -p "${ONEDRIVE}"
cat /tmp/brew-sync.taps | sort | uniq > "${ONEDRIVE}"/brew-sync.taps
cat /tmp/brew-sync.installed | sort | uniq > "${ONEDRIVE}"/brew-sync.installed
cat /tmp/brew-cask.installed | sort | uniq > "${ONEDRIVE}"/brew-cask.installed

# Set taps
echo -e "${w}➔ ${b}Setting taps ...${c}"
grep -v '^ *#' < "${ONEDRIVE}"/brew-sync.taps | while IFS= read -r TAP
do
	$BREW tap "${TAP}" > /dev/null
done

# Install missing Homebrew packages
echo -e "${w}➔ ${b}Installing missing packages ...${c}"
grep -v '^ *#' < "${ONEDRIVE}"/brew-sync.installed | while IFS= read -r PACKAGE
do
	$LIST "${PACKAGE}" > /dev/null
	[ "$?" != "0" ] && $BREW install "${PACKAGE}"
done

# Install missing Homebrew Cask applications
echo -e "${w}➔ ${b}Install missing packages ...${c}"
grep -v '^ *#' < "${ONEDRIVE}"/brew-cask.installed | while IFS= read -r PACKAGE
do
	$LIST "${PACKAGE}" > /dev/null
	[ "$?" != "0" ] && $CASK install "${PACKAGE}"
done

# Update and clean everything
echo -e "${w}➔ ${b}Finishing ...${c}"
brew update && brew upgrade brew-cask && brew cask update && brew cleanup && brew cask cleanup