L2SS-394: Remove need for LOFAR20_DIR from integration test.

devices/integration_test/README.md

@@ -16,8 +16,7 @@ are running and are in the required state.
 **Warning running these tests will make changes to your CDB database config!**
 
 ```shell
-source bootstrap/etc/lofar20rc.sh
-$LOFAR20_DIR/sbin/run_integration_test.sh
+sbin/run_integration_test.sh
 ```
 
 ## Limitations

devices/test/README.md

@@ -120,7 +120,7 @@ Docker container. A simple interactive Docker exec is enough to access them:
 
 ```sh
 docker exec -it device-sdp /bin/bash
-cd /opt/lofar2.0/tango/devices/
+cd /opt/lofar/tango/devices/
 tox
 ```
 

sbin/run_integration_test.sh

 #!/bin/bash
 
-# Check if lofar20rc.sh is sourced and environment variables are set.
-if [ -z "$LOFAR20_DIR" ]; then
-  echo "\$LOFAR20_DIR is unset or blank, is lofar20rc.sh sourced correctly?"
-  exit 1
+if [ -z "$LOFA20_DIR"]; then
+    # We assume we aren't in the PATH, so we can derive our path.
+    # We need our parent directory.
+    LOFAR20_DIR_RELATIVE=`dirname "$0"`/..
+
+    # As an absolute path
+    LOFAR20_DIR=`readlink -f "${LOFAR20_DIR_RELATIVE}"`
 fi
 
 # Start and stop sequence
@@ -15,7 +18,6 @@ make start databaseds dsconfig jupyter elk
 sleep 15
 
 # Update the dsconfig
-cd "$TANGO_LOFAR_LOCAL_DIR" || exit 1
 sbin/update_ConfigDb.sh CDB/integration_ConfigDb.json
 
 cd "$LOFAR20_DIR/docker-compose" || exit 1