初次创建仓库提交代码

1. 已经构建好了架子了。
2. 添加了示例的插件

thirdparty/py_trees/logging.py

@@ -0,0 +1,95 @@
+#!/usr/bin/env python
+#
+# License: BSD
+#   https://raw.githubusercontent.com/splintered-reality/py_trees/devel/LICENSE
+#
+##############################################################################
+# Documentation
+##############################################################################
+
+"""
+.. module:: loggers
+   :synopsis: Logging facilities in py_trees.
+
+Oh my spaghettified magnificence,
+Bless my noggin with a tickle from your noodly appendages!
+"""
+
+##############################################################################
+# Imports
+##############################################################################
+
+from enum import IntEnum
+
+from . import console
+
+##############################################################################
+# Logging
+##############################################################################
+
+# I'd really prefer to use python logging facilities, but rospy logging
+# on top of python logging kills it.
+#
+# Could still use it here, and would actually be useful if I could
+# integrate it with nosetests, but for now, this will do.
+# Note, you can get colour with python logging, but its tricky;
+#
+#   http://stackoverflow.com/questions/384076/how-can-i-color-python-logging-output
+#
+# python way:
+#
+#     import logging
+#         logging.getLogger("py_trees.Behaviour")
+#         logging.basicConfig(level=logging.DEBUG)
+#
+##############################################################################
+# Level
+##############################################################################
+
+
+# levels
+class Level(IntEnum):
+    """
+    An enumerator representing the logging level.
+    Not valid if you override with your own loggers.
+    """
+    DEBUG = 0
+    INFO = 1
+    WARN = 2
+    ERROR = 3
+
+
+# module variable
+level = Level.INFO
+
+##############################################################################
+# Logger Class
+##############################################################################
+
+
+class Logger(object):
+    """
+    :cvar override: whether or not the default python logger has been overridden.
+    :vartype override: bool
+    """
+
+    def __init__(self, name=None):
+        self.prefix = '{:<20}'.format(name.replace("\n", " ")) + " : " if name else ""
+
+    def debug(self, msg):
+        global level
+        if level < Level.INFO:
+            console.logdebug(self.prefix + msg)
+
+    def info(self, msg):
+        global level
+        if level < Level.WARN:
+            console.loginfo(self.prefix + msg)
+
+    def warning(self, msg):
+        global level
+        if level < Level.ERROR:
+            console.logwarn(self.prefix + msg)
+
+    def error(self, msg):
+        console.logerror(self.prefix + msg)