skip couchdb backup if seq id is ureadable

plugins/localdump/couchdb2.sh

@@ -4,7 +4,11 @@
 # LOCALDUMP :: COUCHDB2 - using nodejs tools couchbackup and couchrestore
 # https://github.com/cloudant/couchbackup
 #
-# creates gzipped plain text backups (JSON) from each scheme
+# Backup:
+# - creates gzipped plain text backups (JSON) from each scheme
+# - write sequence id into a text file
+# - store extra file with security infos
+# - latest backup set is written to archive
 #
 # --------------------------------------------------------------------------------
 # ah - Axel Hahn <axel.hahn@iml.unibe.ch>
@@ -22,6 +26,7 @@
 # 2022-04-21         v1.7  restore security infos
 # 2022-10-07  ah     v1.8  unescape regex with space to prevent "grep: warning: stray \ before white space"
 # 2023-06-06  ah     v1.9  show a warning if the sequence id was not fetched
+# 2023-06-12  ah     v1.10 skip couchdb dump if no sequence id was detected (=db deleted since fetching list of all dbs)
 # ================================================================================
 
 if [ -z "$BACKUP_TARGETDIR" ]; then
@@ -223,31 +228,31 @@ function _doBackupOfSingleInstance(){
         echo "WARNING: unable to fetch current sequence ID - maybe the database was deleted."
       else
         echo
-      fi
-      echo "update_seq --+-- current [${sSequenceCurrent}]" 
-      echo "             +-- backup  [${sSequenceLast}]"
-      echo -n "Need to backup ... "
-      couchbackup --db "${dbname}" >"${OUTFILE}".progress 2>/dev/null && mv "${OUTFILE}".progress "${OUTFILE}"
-      fetchrc
-
-      # $myrc is last returncode - set in fetchrc
-      if [ $myrc -eq 0 ]; then
-        echo -n "gzip ... "
-        compress_file "$OUTFILE"
+        echo "update_seq --+-- current [${sSequenceCurrent}]" 
+        echo "             +-- backup  [${sSequenceLast}]"
+        echo -n "Need to backup ... "
+        couchbackup --db "${dbname}" >"${OUTFILE}".progress 2>/dev/null && mv "${OUTFILE}".progress "${OUTFILE}"
         fetchrc
+
+        # $myrc is last returncode - set in fetchrc
         if [ $myrc -eq 0 ]; then
-          iDbCount+=1
-          cp "${OUTFILE}"* "${ARCHIVFILE}"                             \
-            && echo "${sSequenceCurrent}">"${SEQFILE}"                 \
-            && _couchapi GET "${dbname}/_security" > "${SECURITYFILE}"
-          ls -l "${ARCHIVFILE}" "${SEQFILE}" "${SECURITYFILE}"
+          echo -n "gzip ... "
+          compress_file "$OUTFILE"
+          fetchrc
+          if [ $myrc -eq 0 ]; then
+            iDbCount+=1
+            cp "${OUTFILE}"* "${ARCHIVFILE}"                             \
+              && echo "${sSequenceCurrent}">"${SEQFILE}"                 \
+              && _couchapi GET "${dbname}/_security" > "${SECURITYFILE}"
+            ls -l "${ARCHIVFILE}" "${SEQFILE}" "${SECURITYFILE}"
+          fi
+        else
+          echo "ERROR occured while dumping - abort"
         fi
-      else
-        echo "ERROR occured while dumping - abort"
-      fi
-      ls -l "$OUTFILE"*
-      echo
-    fi
+        ls -l "$OUTFILE"*
+        echo
+      fi # if [ -z "$sSequenceCurrent" ]; then
+    fi # if [ "${sSequenceCurrent}" = "${sSequenceLast}" ] ...
   done
   rm -f "$dblist"
   echo "__DB__$SERVICENAME backup INFO: ${COUCHDB_INSTANCE} - backed up $iDbCount dbs of $iDbTotal total"