Add basic package for launch integration

.gitignore

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+*~
+*.pyc
+

package.xml

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+<?xml version="1.0"?>
+<?xml-model href="http://download.ros.org/schema/package_format2.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+<package format="2">
+  <name>tracetools_launch</name>
+  <version>0.0.1</version>
+  <description>Launch integration for tracing</description>
+  <maintainer email="fixed-term.christophe.bourquebedard@de.bosch.com">Christophe Bedard</maintainer>
+  <license>TODO</license>
+  <author email="fixed-term.christophe.bourquebedard@de.bosch.com">Christophe Bedard</author>
+
+  <depend>launch</depend>
+  <depend>launch_ros</depend>
+
+  <test_depend>ament_copyright</test_depend>
+  <test_depend>ament_flake8</test_depend>
+  <test_depend>ament_pep257</test_depend>
+  <test_depend>python3-pytest</test_depend>
+
+  <export>
+    <build_type>ament_python</build_type>
+  </export>
+</package>

setup.cfg

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+[develop]
+script-dir=$base/lib/tracetools_launch
+[install]
+install-scripts=$base/lib/tracetools_launch

setup.py

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+from setuptools import find_packages
+from setuptools import setup
+
+package_name = 'tracetools_launch'
+
+setup(
+    name=package_name,
+    version='0.0.1',
+    packages=find_packages(exclude=['test']),
+    data_files=[
+        ('share/' + package_name, ['package.xml']),
+    ],
+    install_requires=['setuptools'],
+    maintainer='Christophe Bedard',
+    maintainer_email='fixed-term.christophe.bourquebedard@de.bosch.com',
+    author='Christophe Bedard',
+    author_email='fixed-term.christophe.bourquebedard@de.bosch.com',
+    # url='',
+    keywords=['ROS'],
+    description='Launch integration for tracing',
+    license='TODO',
+    tests_require=['pytest'],
+)

tracetools_launch/destroy.py

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+
+from typing import List
+from typing import Optional
+from typing import Text
+
+from launch.action import Action
+from launch_context import LaunchContext
+from launch_description_entity import LaunchDescriptionEntity
+
+
+class Destroy(Action):
+    """
+    Action for launch that destroys a tracing session.
+
+    It finalizes and destroys a tracing session that was setup with the Trace action.
+    """
+
+    def __init__(self, session_name: str, **kwargs) -> None:
+        """Constructor."""
+        super().__init__(**kwargs)
+        self.__session_name = session_name
+
+    def execute(self, context: LaunchContext) -> Optional[List[Action]]:
+        pass

tracetools_launch/trace.py

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+
+from typing import List
+from typing import Optional
+from typing import Text
+
+from launch.action import Action
+from launch_context import LaunchContext
+from launch_description_entity import LaunchDescriptionEntity
+
+
+class Trace(Action):
+    """
+    Tracing action for launch.
+
+    Sets up and enables tracing through a launch file description.
+    """
+
+    def __init__(self, *,
+        session_name: str,
+        base_path: str,
+        events_ust: List[str],
+        events_kernel: List[str],
+        **kwargs) -> None:
+        """Constructor."""
+        super().__init__(**kwargs)
+
+    def execute(self, context: LaunchContext) -> Optional[List[Action]]:
+        # TODO
+        pass