#!/bin/bash

usage () { 
  printf "Usage: backup.sh <options> <project> [<project>]\n"
  printf "  project = Compose project folder(s).\n"
  printf "  Option r <location>: rsync to another location - will make path (rsync mkpath option used)\n"
}

pexit () {
  printf "${1}\n"
  exit 1
}

RSYNC=""
while getopts ':r:' OPT; do
  case $OPT in
    r) RSYNC="${OPTARG}";;
    \?) usage; exit;;
  esac
done
shift $((OPTIND -1))

if [[ $# -lt 1 ]]; then
  pexit "Error: missing project(s)"
fi

if  [[ -n $RSYNC ]]; then
  HN=$(hostname -f)
  if [[ ! $HN =~ "." ]]; then
    pexit "Error: fully quaififed hostname required (add to /etc/hosts - 127.0.0.11)"
  fi
  printf "Hostname: ${HN}\n"
fi

pushd /srv/backup || pexit "Error: changing to backup directory"
printf "Backup start: $(date)\n"
for PROJECT in $@; do
  ./vvv.sh "${PROJECT}" || pexit "Error: using vvv.sh ${PROJECT}"
done
nice ./v2b.sh -u backup || pexit "Error: using v2b.sh -u backup"
if [[ -n $RSYNC ]]; then
  RSYNC="${RSYNC}/${HN}/$(date +%^a)"
  rsync -av --mkpath ./_vols_/ "${RSYNC}/" || pexit "Error: using rsync -av --mkpath ./_vols_/ ${RSYNC}/"
fi
printf "Backup end: $(date)\n" && \
popd || pexit "Error: using popd"



# e.g. rsync -av --mkpath ./_vols_/ "/srv/fsback/${HN}/$(date +%^a)/"