From dd3d5b8f7ee8874fedd67d6cc3b2ec53364fd6ac Mon Sep 17 00:00:00 2001
From: Martin Winkler <efelon@winklerfamilie.eu>
Date: Wed, 22 Feb 2023 12:43:17 +0100
Subject: [PATCH] backup - enhanced seq budir to support custom rsync flags
 (default is the same)

---
 seqs/backup.sh | 69 ++++++++++++++++++++++++++++++++++----------------
 1 file changed, 47 insertions(+), 22 deletions(-)

diff --git a/seqs/backup.sh b/seqs/backup.sh
index 3f585b4..1c5ea8e 100755
--- a/seqs/backup.sh
+++ b/seqs/backup.sh
@@ -44,61 +44,84 @@ step_1() {
 
 step_3_info() {
   # Backup single directory recursively
-  local opt=
+  local opt=()
   local dir='<SOURCE>'
   local tar='[TARGET]'
-  local exc=
+  local tarOpt=0
+  local exc=()
   shift
-  if [ "${1:-}" == "-t" ] ; then
-    opt=" -t     "
-    shift
-  fi
+  while [[ "${1:-}" =~ ^- ]] ; do
+    case "${1}" in 
+      --)
+        shift && break;;
+      -f)
+        opt+=("${1:-}" "'${2:-}'")
+        shift 2;;
+      -t)
+        tarOpt=1
+        shift;;
+      -*)
+        opt+=("${1}")
+        shift ;;
+    esac
+  done
   if [ -n "${1:-}" ] ; then
     dir="$1"
     shift
-    if [ -z "$opt" ] && [ -n "$1" ] ; then
-      tar="$1"
-      shift
-    else
+    if (( tarOpt )) ; then
       tar="$BACKUP_TARGET"
-    fi
-    if [ -n "${1:-}" ] ; then
-      exc="$*"
     else
-      exc="[NO EXCLUDES]"
+      tar="${1:-}"
+      shift
     fi
+    for arg in "$@" ; do
+      exc+=("'$arg'")
+    done
+    (( ${#exc[@]} )) || exc=("[NO EXCLUDES]")
   fi
-  echo     "Backup $opt $dir $tar $exc"
+  echo     "Backup ${opt[*]} '$dir' '$tar' ${exc[*]}"
+  echoinfo " -f : Replace default flags (can be used multiple times)"
+  echoinfo "      (default: ${sq_rsyncFlags[*]})"
+  echoinfo " -n : No remount to rw"
   echoinfo " -t : Using configuration value as TARGET"
   echoinfo "      <DIRECTORY> [EXCLUDES...]"
   echoinfo "EXCLUDES path notation starts within $dir"
   echoinfo " e.g. to exclude $dir/a:"
   echoinfo " $0 budir $dir $tar /a"
 }
+sq_rsyncFlags=("-avxHAX" "--delete")
 step_3_options() { echo "[OPTION] <DIRECTORY> [TARGET] [EXCLUDES...]"; }
 step_3_alias() { echo "budir"; }
 step_3() {
   local configTarget=0
-  local noRemount=0
+  local remount=1
   local buSource=
   local buTarget=
   local buExcludes=
   local buLog=
+  local customFlags=()
   # don't use step number
   shift
 
   for _ in "$@"; do
     case "$1" in
+      --)
+        shift && break;;
       -t)
         configTarget=1
         shift;;
       -n)
-        noRemount=1
+        remount=0
+        shift;;
+      -f)
+        shift
+        customFlags+=("${1:-}")
         shift;;
     esac
   done
 
-  if [ -z "$1" ] ; then
+  (( "${#customFlags[@]}" )) || customFlags=("${sq_rsyncFlags[@]}")
+  if [ -z "${1:-}" ] ; then
     error -e "Nothing found to backup $1"
     exit 1
   fi
@@ -149,7 +172,7 @@ step_3() {
     tmpTarget="${buTarget}/"
   fi
 
-  if [ $noRemount -eq 0 ]; then
+  if (( remount )) ; then
     # remount target to be writable
     exep "mount -o rw,remount '${buTarget}' >>/dev/null 2>&1"
     endReturn "Remount (${buTarget}) to be writable failed"
@@ -161,12 +184,14 @@ step_3() {
   fi
 
   checkInstalled
-  exep "mv -f ${buTarget}/${buLog}0.log /tmp/${buLog}1.log 2>/dev/null"
-  exep "${sq_toolBin} -avxHAX --delete --info=stats2 ${buExcludes[*]} ${tmpSource} ${tmpTarget} > /tmp/${buLog}0.log"
+  exep "mv -f '${buTarget}/${buLog}0.log' '/tmp/${buLog}1.log' 2>/dev/null"
+  exep "'${sq_toolBin}' ${customFlags[*]} --info=stats2 ${buExcludes[*]} '${tmpSource}' '${tmpTarget}' > '/tmp/${buLog}0.log'"
 
   exe mv -f /tmp/"${buLog}"*.log "${buTarget}"
   exe sync
-  exep "mount -o ro,remount '${buTarget}' >>/dev/null 2>&1"
+  if (( remount )) ; then
+    exep "mount -o ro,remount '${buTarget}' >>/dev/null 2>&1"
+  fi
 }
 
 step_100_info() { echo "Install ${sq_toolBin}"; }