What does rosinstall do?

What does rosinstall do?

rosinstall is a tool to check out ROS source code (or any source code, really) from multiple version control repositories and updating these checkouts. rosinstall file that specifies where to get code, rosinstall will check out a working copy for you.

What is a rosinstall file?

The rosinstall file format is a yaml document. It is a list of top level dictionaries. Each top level dictionary is expected to have one of the vcs type keys and no other keys. Inside every top level dictionary there is one required key, local-name this represents the path where to install files.

How do I download a ROS package?

Install Package from apt Repository

1. Open a terminal window.
2. Type apt install ros-melodic-calibration-msgs.
3. Type sudo apt install ros-melodic-calibration-msgs.
4. Type roscd calibration_msgs again.
5. Type sudo apt remove ros-melodic-calibration-msgs to remove the package.
6. Type cd ~ to return to your home directory.

What is rosdep update?

rosdep update fetches the new rosdep definition files and stores them somewhere too. Other than that, rosdep does nothing as long as you don’t do a rosdep install . This will then install the required dependencies that are specified in the package.

What is Rospy?

rospy is a pure Python client library for ROS. The rospy client API enables Python programmers to quickly interface with ROS Topics, Services, and Parameters. Many of the ROS tools, such as rostopic and rosservice, are built on top of rospy.

What is Rosnode?

A ROS node, according to ROS wiki, is basically a process that performs computation. It is an executable program running inside your application. Nodes are combined into a graph and communicate with each other using ROS topics, services, actions, etc.

What does rosdep init do?

rosdep init initialize rosdep sources in /etc/ros/rosdep. May require sudo. rosdep update update the local rosdep database based on the rosdep sources. Since rosdep update is not run with sudo , it cannot affect apt ‘s package management.

What is Catkin_make?

catkin_make is a convenience tool for building code in a catkin workspace. catkin_make follows the standard layout of a catkin workspace, as described in REP-128.

What is a ROS subscriber?

A ROS Node can be a Publisher or a Subscriber. A Publisher is the one puts the messages of some standard Message Type to a particular Topic. The Subscriber on the other hand subscribes to the Topic so that it receives the messages whenever any message is published to the Topic.

What is rosdep?

rosdep is a command-line tool for installing system dependencies.

What does the rosinstall_generator do?

The rosinstall_generator generates rosinstall files containing information about repositories with ROS packages/stacks. It always returns information about released packages – either to the gbp repositories for wet packages or to the tarball of dry stacks from the SVN release repository.

How to generate a rosinstall file with desktop_full packages?

To generate a rosinstall file with all packages and stacks contained in the desktop-full variant for Hydro invoke: Since for Groovy not all packages of desktop_full have been catkinized you might want to generate two separate rosinstall files for wet and dry. Thereby you can checkout these two sets of packages into different locations:

How do I access the source repository of a ROS package/stack?

If you want to access the source repository of a package/stack you should use roslocate instead. The rosinstall_generator can be installed via a Debian package from the ROS repositories: For other platforms (where the Debian package is not available) it can be installed from PyPI using pip.

Where can I find more information about roslocate?

For information on roslocate and how it is used, we recommend reading the roslocate page. To report a bug or request an enhancement visit the issue tracker on GitHub. Please see the ROS Installation page for up-to-date instructions on using rosinstall with current configurations.