version bump

btrbk-cron

@@ -1,6 +1,7 @@
 #!/bin/bash
 
 CONF=/etc/btrbk/btrbk-cron.conf
+LOCKFILE=/run/btrbk/btrbk.lock
 LOGFILE=$(mktemp)
 trap 'rm -f -- "${LOGFILE}"' EXIT
 
@@ -16,6 +17,7 @@ fi
 
 HEALTHCHECK_URL=${HEALTHCHECK_URL:-http://127.0.0.1}
 HEALTHCHECK_ENABLE=${HEALTHCHECK_ENABLE:-false}
+FAIL_IF_TARGET_UNREACHABLE=${FAIL_IF_TARGET_UNREACHABLE:-true}
 CURLOPTS=(-fsS -m 10 --retry 5)
 
 if [[ ! -d /run/btrbk ]] ; then
@@ -29,6 +31,15 @@ else
   echo "Info: Healthchecks disabled"
 fi
 
+if [[ -f "${LOCKFILE}" ]] ; then
+  echo "Another instance is still running" | tee -a "${LOGFILE}"
+  if [[ "${HEALTHCHECK_ENABLE}" = "true" ]] ; then
+    curl "${CURLOPTS[@]}" --data-binary "@${LOGFILE}" "${HEALTHCHECK_URL}/log"
+  fi
+  rm -f -- "${LOGFILE}"
+  exit 0
+fi
+
 HOST=$(grep -E '^[\ \t]*target[\ \t]+send-receive' /etc/btrbk/btrbk.conf)
 # TODO: support for dashes in hostname and IPv6 ("[2001:db8::7]")
 HOST=$(echo "${HOST}" | sed -r 's/.*ssh:\/\/([0-9\.a-zA-Z]+).*/\1/g' )
@@ -47,7 +58,11 @@ if [[ "${SSH_OK}" = "" ]] ; then
     curl "${CURLOPTS[@]}" --data-binary "@${LOGFILE}" "${HEALTHCHECK_URL}/log"
   fi
   rm -f -- "${LOGFILE}"
-  exit 1
+  if [[ "${FAIL_IF_TARGET_UNREACHABLE}" = "true" ]] ; then
+    exit 1
+  else
+    exit 0
+  fi
 fi
 
 echo "Start backup: $(date||true)" | tee -a "${LOGFILE}"

btrbk-cron.conf.example

@@ -1,2 +1,3 @@
 HEALTHCHECK_ENABLE=true
 HEALTHCHECK_URL=https://my.selfhosted.healthcheck.com/ping/e48e4add-c17c-467c-9a91-7b245ad57fe8
+FAIL_IF_TARGET_UNREACHABLE=true

debian/changelog

@@ -1,3 +1,10 @@
+btrbk-cron (0.3) stable; urgency=medium
+
+  * clean exit if lockfile present
+  * added FAIL_IF_TARGET_UNREACHABLE setting
+
+ -- Paolo Asperti <paolo@asperti.com>  Mon, 14 Oct 2024 17:33:58 +0200
+
 btrbk-cron (0.2) stable; urgency=medium
 
   * Added destination aliveness check