add borg backup to pfsense-backup script

borgBackup.sh

@@ -0,0 +1,53 @@
+#!/bin/sh
+function create_borg_backup {
+  # $1 = ARCHIVE NAME
+  # $2 = FOLDER TO BACKUP
+  local ARCHIVE_NAME="$1"
+  local FOLDER_TO_BACKUP="$2"
+
+  if [ -z "$ARCHIVE_NAME" ]; then
+    echo "No archive name provided"
+    return 1
+  fi
+  if [ -z "$FOLDER_TO_BACKUP" ]; then
+    echo "No folder to backup provided"
+    return 1
+  fi
+  if [ -z "$BORG_CREATE_PARAMS" ]; then
+    echo "No borg create params provided"
+    return 1
+  fi
+
+  wait_for_borg_backup_done
+  echo "Creating Borg Backup from $FOLDER_TO_BACKUP into the Archive: $ARCHIVE_NAME"
+  borg create "${BORG_CREATE_PARAMS[@]}" "$BORG_REPO"::"$ARCHIVE_NAME-{now:%d.%m.%Y_%H:%M}" "$FOLDER_TO_BACKUP"
+}
+
+function purge_borg_backup {
+  # $1 = ARCHIVE NAME
+  local ARCHIVE_NAME="$1"
+
+  if [ -z "$ARCHIVE_NAME" ]; then
+    echo "No archive name provided"
+    return 1
+  fi
+  if [ -z "$BORG_PRUNE_PARAMS" ]; then
+    echo "No borg purge params provided"
+    return 1
+  fi
+
+  wait_for_borg_backup_done
+  echo "Purging Borg Backup Archive: $ARCHIVE_NAME"
+  borg prune -a "$ARCHIVE_NAME-*" "${BORG_PRUNE_PARAMS[@]}"
+}
+
+function wait_for_borg_backup_done {
+  local text_output=1
+  while pidof -x borg >/dev/null; do
+    if [ $text_output -eq 1 ]; then
+      echo "Borg already running, waiting that it finishes..."
+      text_output=0
+    fi
+    sleep 10
+  done
+}