change backup.sh to be more general

backup.cron

@@ -1 +1 @@
-14 4 * * * root /srv/backup/backup.sh 2>&1 |tee /root/cron-backup.log
+14 4 * * * root /srv/backup/backup.sh -r "/srv/fsback" docker 2>&1 |tee /srv/fsback/$(date +%^a).log

backup.sh

@@ -1,9 +1,49 @@
 #!/bin/bash
 
-pushd /srv/backup && \
-  printf "Backup start: $(date)\n" && \
-  ./vvv.sh docker && \
-  nice ./v2b.sh -u backup && \
-  rsync -av --mkpath ./_vols_/ "/srv/fsback/docker/$(date +%^a)/" && \
+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 [[ $# -lt 1 ]]; then
+  pexit "Error: missing project(s)"
+fi
+
+HN=$(hostname -f)
+if [[ ! $HN =~ "." ]]; then
+  pexit "Error: fully quaififed hostname required (add to /etc/hosts - 127.0.0.11)"
+fi
+
+printf "Hostname: ${HN}\n"
+
+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: $(date)\n" && \
-  popd
+popd || pexit "Error: using popd"
+
+
+
+# e.g. rsync -av --mkpath ./_vols_/ "/srv/fsback/${HN}/$(date +%^a)/"