Add trace script to setup/enable tracing through Python bindings

trace.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+# Entrypoint/script to setup and start an LTTng tracing session
+# TODO
+
+import sys
+import time
+from tracetools_analysis.tracing.lttng import *
+
+def main(argv=sys.argv):
+    if len(argv) != 3:
+        print("usage: session-name /path")
+        exit(1)
+
+    session_name = argv[1]
+    path = argv[2]
+    # TODO fix kernel tracing
+    lttng_setup(session_name, path, kernel_events=None)
+    lttng_start(session_name)
+    print('tracing session started')
+
+    # TODO integrate this with launch + ROS shutdown
+    time.sleep(5)
+
+    print('stopping & destroying tracing session')
+    lttng_stop(session_name)
+    lttng_destroy(session_name)