File migrate_redis_to_valkey.bash of Package valkey

#!/bin/bash

# Identify whether any config files exist
configfiles=($(find /etc/redis -maxdepth 1 -name "*.conf"))
redisunits=($(find /etc/systemd/system/redis.target.wants -maxdepth 1 -name "redis@*.service" -execdir basename {} \;))
sentinelunits=($(find /etc/systemd/system/redis.target.wants -maxdepth 1 -name "redis-sentinel@*.service" -execdir basename {} \;))

if [ ${#configfiles[@]} -gt 0 ]; then
  for configfile in ${configfiles[@]}
  do
      configfilename=$(basename "$configfile")
      cp $configfile /etc/valkey/$configfilename
      chown root:valkey /etc/valkey/$configfilename
      if [[ $configfilename == sentinel-*.conf ]]; then
        # Sentinel config files need to be writable by valkey group
        chmod 660 /etc/valkey/$configfilename
      fi
      mv $configfile ${configfile}.bak
  done
  sed -e 's|^dir\s.*|dir /var/lib/valkey|g' -i /etc/valkey/*.conf
  sed -e 's|^logfile\s/var/log/redis/|logfile /var/log/valkey/|g' -i /etc/valkey/*.conf
  echo "/etc/redis/*.conf has been copied to /etc/valkey.  Manual review of adjusted configs is strongly suggested."
fi
if test -x /usr/bin/systemctl; then
  if [ ${#redisunits[@]} -gt 0 ]; then
    for redisunit in ${redisunits[@]}
    do
        systemctl disable "${redisunit}"
        systemctl enable "valkey@${redisunit##*@}"
    done
  fi
  if [ ${#sentinelunits[@]} -gt 0 ]; then
    for sentinelunit in ${sentinelunits[@]}
    do
        systemctl disable "${sentinelunit}"
        systemctl enable "valkey-sentinel@${sentinelunit##*@}"
    done
  fi
fi
if [ -d /var/lib/redis ]; then
  cp -r /var/lib/redis/* /var/lib/valkey/
  chown -R valkey:valkey /var/lib/valkey
  mv /var/lib/redis /var/lib/redis.bak
  echo "On-disk redis dumps copied from /var/lib/redis/ to /var/lib/valkey"
fi