Add a script to run tasks locally in butler

src/local/butler/scripts/run_task.py

@@ -0,0 +1,29 @@
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Run a task locally."""
+
+from clusterfuzz._internal.bot.fuzzers import init
+from clusterfuzz._internal.bot.tasks import commands
+from clusterfuzz._internal.system import environment
+
+# from local.butler.run_bot
+
+
+def execute(args):
+  """Build keywords."""
+  environment.set_bot_environment()
+  init.run()
+  commands.process_command_impl('fuzz', 'libFuzzer', 'libfuzzer_asan_log4j2',
+                                True, True)
+  pass