Added SKIP_DELETION support

dev/n_osync.sh

@@ -4,7 +4,7 @@ PROGRAM="osync" # Rsync based two way sync engine with fault tolerance
 AUTHOR="(C) 2013-2016 by Orsiris de Jong"
 CONTACT="http://www.netpower.fr/osync - ozy@netpower.fr"
 PROGRAM_VERSION=1.2-beta2
-PROGRAM_BUILD=2016101704
+PROGRAM_BUILD=2016102101
 IS_STABLE=no
 
 # Execution order						#__WITH_PARANOIA_DEBUG
@@ -170,6 +170,11 @@ function CheckCurrentConfigAll {
 		Logger "Cannot find rsa private key [$SSH_RSA_PRIVATE_KEY] nor password file [$SSH_PASSWORD_FILE]. No authentication method provided." "CRITICAL"
 		exit 1
 	fi
+
+	if [ "$SKIP_DELETION" != "" ] && [ $(arrayContains "${INITIATOR[$__type]}" "${SKIP_DELETION[@]}") -ne 0 ] && [ $(arrayContains "${TARGET[$__type]}" "${SKIP_DELETION[@]}") -ne 0 ]; then
+		Logger "Bogus skip deletion parameter." "CRITICAL"
+		exit 1
+	fi
 }
 
 ###### Osync specific functions (non shared)
@@ -1167,6 +1172,7 @@ function deletionPropagation {
 	#TODO: deletionPropagation replicaType = source replica whereas _deleteXxxxxx replicaType = dest replica
 
 	if [ "$replicaType" == "${INITIATOR[$__type]}" ]; then
+		if [ $(arrayContains "${INITIATOR[$__type]}" "${SKIP_DELETION[@]}") -ne 0 ]; then
 			replicaDir="${INITIATOR[$__replicaDir]}"
 			deleteDir="${INITIATOR[$__deleteDir]}"
 
@@ -1177,6 +1183,10 @@ function deletionPropagation {
 				exit 1
 			fi
 		else
+			Logger "Skipping deletion on replica $replicaType." "NOTICE"
+		fi
+	elif [ "$replicaType" == "${TARGET[$__type]}" ]; then
+		if [ $(arrayContains "${TARGET[$__type]}" "${SKIP_DELETION[@]}") -ne 0 ]; then
 			replicaDir="${TARGET[$__replicaDir]}"
 			deleteDir="${TARGET[$__deleteDir]}"
 
@@ -1198,6 +1208,9 @@ function deletionPropagation {
 				fi
 				exit 1
 			fi
+		else
+			Logger "Skipping deletion on replica $replicaType." "NOTICE"
+		fi
 	fi
 }
 
@@ -1847,6 +1860,7 @@ function Usage {
 	echo "--rsakey=\"\"		Alternative path to rsa private key for ssh connection to target replica"
 	echo "--password-file=\"\"      If no rsa private key is used for ssh authentication, a password file can be used"
 	echo "--instance-id=\"\"	Optional sync task name to identify this synchronization task when using multiple targets"
+	echo "--skip-deletion=\"\"      You may skip deletion propagation on initiator or target. Valid values: initiator target initiator,target"
 	echo ""
 	echo "Additionaly, you may set most osync options at runtime. eg:"
 	echo "SOFT_DELETE_DAYS=365 osync.sh --initiator=/path --target=/other/path"
@@ -1983,6 +1997,11 @@ for i in "$@"; do
 		INSTANCE_ID=${i##*=}
 		opts=$opts" --instance-id=\"$INSTANCE_ID\""
 		;;
+		--skip-deletion=*)
+		#SKIP_DELETION=${i##*=}
+		opts=$opts" --skip-deletion=\"${i##*=}\""
+		IFS=',' read -r -a SKIP_DELETION <<< ${i##*=}
+		;;
 		--on-changes)
 		sync_on_changes=true
 		_NOLOCKS=true

sync.conf.example

@@ -2,7 +2,7 @@
 
 ###### osync - Rsync based two way sync engine with fault tolerance
 ###### (C) 2013-2016 by Orsiris de Jong (www.netpower.fr)
-###### osync v1.1x / v1.2x config file rev 2016101901
+###### osync v1.1x / v1.2x config file rev 2016102101
 
 ## ---------- GENERAL OPTIONS
 
@@ -133,6 +133,9 @@ SOFT_DELETE=yes
 ## Osync will clean deleted files after a given number of days. Setting this to 0 will disable cleaning and keep deleted files forever. Warning: This can be very space consuming.
 SOFT_DELETE_DAYS=30
 
+## Optional deletion skip on replicas. Valid values are "initiator", "target", or "initiator,target"
+SKIP_DELETION=
+
 ## ---------- RESUME OPTIONS
 
 ## Try to resume an aborted sync task

upgrade-v1.0x-v1.2x.sh

@@ -6,7 +6,7 @@ AUTHOR="(C) 2016 by Orsiris de Jong"
 CONTACT="http://www.netpower.fr/osync - ozy@netpower.fr"
 OLD_PROGRAM_VERSION="v1.0x-v1.1x"
 NEW_PROGRAM_VERSION="v1.2x"
-CONFIG_FILE_VERSION=2016101901
+CONFIG_FILE_VERSION=2016102101
 PROGRAM_BUILD=2016101701
 
 ## type -p does not work on platforms other than linux (bash). If if does not work, always assume output is not a zero exitcode
@@ -64,6 +64,7 @@ CONFLICT_BACKUP_DAYS
 CONFLICT_PREVALANCE
 SOFT_DELETE
 SOFT_DELETE_DAYS
+SKIP_DELETION
 RESUME_SYNC
 RESUME_TRY
 FORCE_STRANGER_LOCK_RESUME
@@ -130,6 +131,7 @@ no
 initiator
 yes
 30
+''
 yes
 2
 no