add patterns to extract various warning pattern

[dirk-thomas]

Fixes #418.

Atm various kind of warnings are present in the job output (specifically the stderr log of the test invocation) but being ignored.

This patch adds multiple patterns to each job to match different kinds of warnings:

• memory leaks reported by foonathan
• pytest warnings - with/without a reference to a specific file:lineno
• Python deprecation warnings

These pattern cover all the cases mentioned in #447 (comment):

• https://ci.ros2.org/view/All/job/test_ci_linux/41/
• https://ci.ros2.org/view/All/job/test_ci_windows/196/

In order to work the Jenkins master needs to define the following custom Groovy parsers in io.jenkins.plugins.analysis.warnings.groovy.ParserConfiguration.xml:

<?xml version='1.1' encoding='UTF-8'?>
<io.jenkins.plugins.analysis.warnings.groovy.ParserConfiguration plugin="warnings-ng@8.1.0">
  <parsers>
    <io.jenkins.plugins.analysis.warnings.groovy.GroovyParser>
      <id>foonathan-memory-leaks</id>
      <name>foonathan memory leaks</name>
      <regexp>^\[foonathan::memory\] Allocator foonathan::memory::(?&lt;allocator&gt;[^ ]+).* leaked (?&lt;amount&gt;.+)\.$</regexp>
      <script>import edu.hm.hafner.analysis.Severity
builder.setCategory(&quot;foonathan::memory&quot;)
    .setMessage(matcher.group(&quot;amount&quot;))
    .setSeverity(Severity.WARNING_NORMAL)
    .setType(matcher.group(&quot;allocator&quot;))
return builder.buildOptional();</script>
      <example>[foonathan::memory] Allocator foonathan::memory::new_allocator (at 0000000000000000) leaked 3840 bytes.</example>
    </io.jenkins.plugins.analysis.warnings.groovy.GroovyParser>
    <io.jenkins.plugins.analysis.warnings.groovy.GroovyParser>
      <id>pytest-warnings</id>
      <name>pytest warnings</name>
      <regexp>^(?&lt;path&gt;[^ ]+\.py)::(?&lt;function&gt;[^ ]+)\n  Warning: (?&lt;message&gt;.+)\n$</regexp>
      <script>import edu.hm.hafner.analysis.Severity
builder.setFileName(matcher.group(&quot;path&quot;))
    .setCategory(matcher.group(&quot;function&quot;))
    .setMessage(matcher.group(&quot;message&quot;))
    .setSeverity(Severity.WARNING_NORMAL)
    .setType(&quot;Warning&quot;)
return builder.buildOptional();</script>
      <example>test/test_launch_ros/actions/test_composable_node_container.py::test_composable_node_container
  Warning: unclosed event loop &lt;ProactorEventLoop running=False closed=False debug=False&gt;

</example>
    </io.jenkins.plugins.analysis.warnings.groovy.GroovyParser>
    <io.jenkins.plugins.analysis.warnings.groovy.GroovyParser>
      <id>pytest-warnings-with-location</id>
      <name>pytest warnings with location</name>
      <regexp>^(?&lt;testpath&gt;[^ ]+\.py)::(?&lt;function&gt;[^ ]+)\n  (?&lt;path&gt;[^:]*.py):(?&lt;lineno&gt;\d+): (?&lt;type&gt;[^:]+Warning): (?&lt;message&gt;.+(\n    .+)*)\n$</regexp>
      <script>import edu.hm.hafner.analysis.Severity
builder.setFileName(matcher.group(&quot;path&quot;))
        .setLineStart(Integer.parseInt(matcher.group(&quot;lineno&quot;)))
        .setCategory(matcher.group(&quot;function&quot;))
        .setMessage(matcher.group(&quot;message&quot;))
        .setSeverity(Severity.WARNING_NORMAL)
        .setType(matcher.group(&quot;type&quot;))
return builder.buildOptional();</script>
      <example>test/test_launch_ros/actions/test_node.py::TestNode::test_launch_node_with_parameter_descriptions
  /home/jenkins-agent/workspace/nightly_linux_debug/ws/src/ros2/launch_ros/test_launch_ros/test/test_launch_ros/actions/test_node.py:186: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
    parameters.append((name, yaml.load(value)))
</example>
    </io.jenkins.plugins.analysis.warnings.groovy.GroovyParser>
    <io.jenkins.plugins.analysis.warnings.groovy.GroovyParser>
      <id>python-deprecation-warnings</id>
      <name>Python deprecation warnings</name>
      <regexp>^Warning: (?&lt;message&gt;.+ is deprecated.+(\n.+)*)\n$</regexp>
      <script>import edu.hm.hafner.analysis.Severity
builder.setCategory(&quot;Python deprecation warning&quot;)
    .setMessage(matcher.group(&quot;message&quot;))
    .setSeverity(Severity.WARNING_NORMAL)
return builder.buildOptional();</script>
      <example>Warning: The TerminalReporter.writer attribute is deprecated, use TerminalReporter._tw instead at your own risk.
See https://docs.pytest.org/en/stable/deprecations.html#terminalreporter-writer for more information.
</example>
    </io.jenkins.plugins.analysis.warnings.groovy.GroovyParser>
  </parsers>
</io.jenkins.plugins.analysis.warnings.groovy.ParserConfiguration>

Before this change can be merged the reported errors should be addressed to not regress the job states:

• https://ci.ros2.org/view/All/job/test_ci_linux/42/
• https://ci.ros2.org/view/All/job/test_ci_osx/326/
• https://ci.ros2.org/view/All/job/test_ci_windows/197/
• https://ci.ros2.org/view/All/job/test_ci_windows/198/

[dirk-thomas]

Tickets which need to be resolved before this can be merged without resulting in job state regressions:

• fix domain coordinator API ament_cmake_ros#9
• Address security bug in yaml loading launch_ros#175
• Windows docker image uses pyreadline causing deprecation warnings #511
• foonathan reports memory leaks (e.g. https://ci.ros2.org/view/All/job/test_ci_linux/46/foonathan-memory-leaks/) foonathan memory leak reported rclcpp#1288