UpdateBrewDaily

init.sh

ln -s $Path/AutoUpdateBrew/launchd.plist ~/Library/LaunchAgents/sh.brew.update
launchctl load ~/Library/LaunchAgents/sh.brew.update

launchd.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>Label</key>
	<string>sh.brew.update</string>
	<key>ProgramArguments</key>
	<array>
		<string>$Path/AutoUpdateBrew/launchd.sh</string>
	</array>
	<key>StartCalendarInterval</key>
	<dict>
		<key>Day</key>
		<string>7</string>
		<key>Minute</key>
		<integer>0</integer>
		<key>Hour</key>
		<integer>10</integer>
	</dict>
	<key>StandardOutPath</key>
	<string>$Path/AutoUpdateBrew/launchd.log</string>
	<key>StandardErrorPath</key>
	<string>$Path/AutoUpdateBrew/launchdErr.log</string>
    <key>RunAtLoad</key>
    <true/>
</dict>
</plist>

launchd.sh

#!/bin/zsh

/bin/zsh
. ~/.zshrc

brew cleanup
brew doctor

brew update
brew upgrade

brew cleanup
brew doctor