系统检测工具ROSWTF

ROSWTF

详细见http://wiki.ros.org/roswtf

roswtf will examine your ROS setup, such as your environment variables, and look for configuration issues. If you have a ROS system online, it will look at it and check for any potential issues.

检查环境变量,配置问题,系统潜在问题等.

$ roscd rosmaster
$ roswtf
输出如下:

Package: rosmaster      //说明roswtf是在rosmaster包目录下启动的
================================================================================
Static checks summary:   //this is a report on any filesystem or any non-runtime (i.e. no roscore required to run) issues. 
No errors or warnings
================================================================================

ROS Master does not appear to be running.
Online graph checks will not be run.
ROS_MASTER_URI is [http://localhost:11311]

测试在线系统（roscore先启动）

$ roscd
$ roswtf

//没在任何一个package目录内启动roswtf
No package or stack in context
======================================================
Static checks summary:

No errors or warnings
======================================================
Beginning tests of your ROS graph. These may take awhile...
analyzing graph...
... done analyzing graph
running graph rules...
... done running graph rules

Online checks summary:

Found 1 warning(s).
Warnings are things that may be just fine, but are sometimes at fault


//roswtf is warning you that the rosout node is subscribed to a topic that no one is publishing to.
WARNING The following node subscriptions are unconnected:
 * /rosout:
   * /rosout

Errors

$ roscd
$ ROS_PACKAGE_PATH=bad:$ROS_PACKAGE_PATH roswtf
输出如下：

Stack: ros
======================================================
Static checks summary:

Found 1 error(s).

ERROR Not all paths in ROS_PACKAGE_PATH [bad] point to an existing directory: 
 * bad

======================================================

Cannot communicate with master, ignoring graph checks