bugfix: Do not show log directory/file details if log_destination=syslog

In A008, if Postgres uses syslog for logging, it does not make sense to analyze and show details log directory/file and mount point. Now we skip details in such cases.

Author: dmius

resources/checks/A008_disk_usage_fstype.sh

@@ -20,15 +20,24 @@ PG_STATS_TEMP_DIR=$(${CHECK_HOST_CMD} "${_PSQL} -f -" <<EOF
 EOF
 )
 
-PG_LOG_DIR=$(${CHECK_HOST_CMD} "${_PSQL} -f -" <<EOF
-  show log_directory
+log_destination=$(${CHECK_HOST_CMD} "${_PSQL} -f -" <<EOF
+  show log_destination
 EOF
 )
 
-# process relative paths
-if ! [[ "${PG_LOG_DIR}" =~ ^/ ]]; then
-  PG_LOG_DIR="${PG_DATA_DIR}/${PG_LOG_DIR}"
+if [[ "$log_destination" != "syslog" ]]; then
+  PG_LOG_DIR=$(${CHECK_HOST_CMD} "${_PSQL} -f -" <<EOF
+  show log_directory
+EOF
+)
+  # process relative paths
+  if ! [[ "${PG_LOG_DIR}" =~ ^/ ]]; then
+    PG_LOG_DIR="${PG_DATA_DIR}/${PG_LOG_DIR}"
+  fi
+else
+  PG_LOG_DIR="syslog"
 fi
+
 if ! [[ "${PG_STATS_TEMP_DIR}" =~ ^/ ]]; then
   PG_STATS_TEMP_DIR="${PG_DATA_DIR}/${PG_STATS_TEMP_DIR}"
 fi
@@ -113,6 +122,10 @@ if $(${CHECK_HOST_CMD} "sudo stat \"$PG_LOG_DIR\" >/dev/null 2>&1"); then
   echo ","
   echo "\"log_directory\":"
   print_df "$PG_LOG_DIR"
+elif [[ "$PG_LOG_DIR" == "syslog" ]]; then
+  echo ","
+  echo "\"log_directory\":"
+  df_to_json "syslog" "" "" "" "" "" "" "" ""
 fi
 
 echo "},"