fallback to previous directory

Signed-off-by: tison <[email protected]>

bin/pulsar

@@ -180,14 +180,20 @@ fi
 # find pulsar sql trino distribution location
 check_trino_libraries() {
     if [ ! -d "${TRINO_HOME}" ]; then
-        BUILT_TRINO_HOME="${SQL_HOME}/presto-distribution/target/pulsar-presto-distribution"
-        if [ ! -d "${BUILT_TRINO_HOME}" ]; then
-            echo "\nCouldn't find trino distribution.";
-            echo "Make sure you've run 'mvn package'\n";
-            exit 1;
+        # TODO: Refactor when we drop this backward compatibility.
+        FALLBACK_PRESTO_HOME="${PULSAR_HOME}/lib/presto"
+        if [ ! -d "${FALLBACK_PRESTO_HOME}" ]; then
+          BUILT_TRINO_HOME="${SQL_HOME}/presto-distribution/target/pulsar-presto-distribution"
+          if [ ! -d "${BUILT_TRINO_HOME}" ]; then
+              echo "\nCouldn't find trino distribution.";
+              echo "Make sure you've run 'mvn package'\n";
+              exit 1;
+          fi
+          TRINO_HOME=${BUILT_TRINO_HOME}
+          PULSAR_TRINO_CONF=${BUILT_TRINO_HOME}/conf
+        else
+          TRINO_HOME=${FALLBACK_PRESTO_HOME}
         fi
-        TRINO_HOME=${BUILT_TRINO_HOME}
-        PULSAR_TRINO_CONF=${BUILT_TRINO_HOME}/conf
     fi
 }
 
@@ -259,6 +265,10 @@ fi
 
 if [ -z "$PULSAR_TRINO_CONF" ]; then
     PULSAR_TRINO_CONF=$DEFAULT_PULSAR_TRINO_CONF
+    # TODO: Refactor to remove when we drop this backward compatibility.
+    if [ ! -d "${PULSAR_TRINO_CONF}" ]; then
+      FALLBACK_PULSAR_PRESTO_CONF=${PULSAR_HOME}/conf/presto
+    fi
 fi
 
 if [ -z "$FUNCTIONS_LOG_CONF"]; then