macOS Launch Daemon to Automatically Update StevenBlack's Host List and Convert to Privoxy Format and Restart Privoxy

adhosts2privoxy.conf

[Ad Hosts]
# /usr/local/sbhosts/adhosts2privoxy.conf
File=/etc/hosts
Keep=1
Type=hosts
Encoding=UTF-8

sb-update-hosts.plist

<?xml version="1.0" encoding="UTF-8"?>
<!-- /Library/LaunchDaemons/sb-update-hosts.plist -->
<!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>sb-update-hosts</string>
    <key>StartInterval</key>
    <integer>43200</integer>
    <key>StandardErrorPath</key>
    <string>/var/log/sbhosts/stderr.log</string>
    <key>StandardOutPath</key>
    <string>/var/log/sbhosts/stdout.log</string>
    <key>RunAtLoad</key>
    <true/>
    <key>WorkingDirectory</key>
    <string>/usr/local/sbhosts</string>
    <key>UserName</key>
    <string>root</string>
    <key>ProgramArguments</key>
    <array>
      <string>/usr/local/sbhosts/bin/update_hosts.sh</string>
    </array>
</dict>
</plist>

setup.sh

#various CLI setup...
sudo mkdir /var/log/sbhosts
sudo chown -R root:wheel /var/log/sbhosts
sudo mkdir -p /usr/local/sbhosts/bin
sudo chown -R root:wheel /usr/local/sbhosts
sudo chown root:wheel ~/bin/update_hosts.sh
cd /usr/local/sbhosts
sudo git clone https://github.com/StevenBlack/hosts.git
sudo wget https://raw.githubusercontent.com/lcferrum/adhosts2privoxy/master/adhosts2privoxy.py

# /Users/$USER/backup/myhosts is a list of local hostnames to resolve...

update_hosts.sh

#!/bin/bash
# /usr/local/sbhosts/bin/update_hosts.sh
# must be run as root because updateHostsFile flushes the DNS cache
cd /usr/local/sbhosts
git fetch --prune
git reset --hard origin/master
git pull
cp /Users/$USER/backup/myhosts /usr/local/sbhosts/myhosts
[ -e /var/log/sbhosts/sbhost.log ] && rm /var/log/sbhosts/sbhost.log
python3 ./updateHostsFile.py -a -f -r -e fakenews > /var/log/sbhosts/sbhost.log
/usr/local/bin/python ./adhosts2privoxy.py /usr/local/sbhosts/adhosts2privoxy.conf
mv sb.action /usr/local/etc/privoxy
launchctl kickstart -k /Library/LaunchDaemons/privoxy.plist