Extract args parsing method

tracetools_trace/tools/args.py

@@ -0,0 +1,34 @@
+import argparse
+import time
+
+from . import names
+
+
+def parse_args():
+    """
+    Parse args for tracing.
+    """
+    parser = argparse.ArgumentParser(description='Setup and launch an LTTng tracing session.')
+    parser.add_argument(
+        '--session-name', '-s', dest='session_name',
+        default=f'session-{time.strftime("%Y%m%d%H%M%S")}',
+        help='the name of the tracing session (default: session-YYYYMMDDHHMMSS)')
+    parser.add_argument(
+        '--path', '-p', dest='path',
+        default='/tmp',
+        help='path of the base directory for trace data (default: %(default)s)')
+    parser.add_argument(
+        '--ust', '-u', nargs='*', dest='events_ust', default=names.DEFAULT_EVENTS_ROS,
+        help='the ROS UST events to enable (default: all events) '
+            '[to disable all UST events, '
+            'provide this flag without any event name]')
+    parser.add_argument(
+        '--kernel', '-k', nargs='*', dest='events_kernel',
+        default=names.DEFAULT_EVENTS_KERNEL,
+        help='the kernel events to enable (default: all events) '
+            '[to disable all UST events, '
+            'provide this flag without any event name]')
+    parser.add_argument(
+        '--list', '-l', dest='list', action='store_true',
+        help='display lists of enabled events (default: %(default)s)')
+    return parser.parse_args()