Default to gazebo harmonic

Signed-off-by: Ryan Friedman <[email protected]>

CMakeLists.txt

@@ -18,7 +18,7 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 # Find gz-sim and dependencies.
 
 # Harmonic
-if("$ENV{GZ_VERSION}" STREQUAL "harmonic")
+if("$ENV{GZ_VERSION}" STREQUAL "harmonic" OR NOT DEFINED "ENV{GZ_VERSION}")
   find_package(gz-cmake3 REQUIRED)
   set(GZ_CMAKE_VER ${gz-cmake3_VERSION_MAJOR})
 
@@ -33,7 +33,7 @@ if("$ENV{GZ_VERSION}" STREQUAL "harmonic")
 
   message(STATUS "Compiling against Gazebo Harmonic")
 # Garden (default)
-elseif("$ENV{GZ_VERSION}" STREQUAL "garden" OR NOT DEFINED "ENV{GZ_VERSION}")
+elseif("$ENV{GZ_VERSION}" STREQUAL "garden")
   find_package(gz-cmake3 REQUIRED)
   set(GZ_CMAKE_VER ${gz-cmake3_VERSION_MAJOR})
 

README.md

@@ -24,6 +24,7 @@ The project comprises a Gazebo plugin to connect to ArduPilot SITL
 ## Prerequisites
 
 Gazebo Garden or Harmonic is supported on Ubuntu 22.04 (Jammy).
+Harmonic is recommended.
 If you are running Ubuntu as a virtual machine you will need at least
 Ubuntu 20.04 in order to have the OpenGL support required for the
 `ogre2` render engine. Gazebo and ArduPilot SITL will also run on macOS
@@ -43,14 +44,27 @@ Install additional dependencies:
 
 ### Ubuntu
 
-Gazebo Garden:
+Recommended - Use rosdep with
+[osrf's rosdep rules](https://github.com/osrf/osrf-rosdep?tab=readme-ov-file#1-use-rosdep-to-resolve-gazebo-libraries)
+to manage all dependencies. This is driven off of the environment variable `GZ_VERSION`.
+
+```bash
+export GZ_VERSION=harmonic # or garden
+sudo bash -c 'wget https://raw.githubusercontent.com/osrf/osrf-rosdep/master/gz/00-gazebo.list -O /etc/ros/rosdep/sources.list.d/00-gazebo.list'
+rosdep update
+rosdep resolve gz-harmonic
+# Navigate to your ROS workspace before the next command.
+rosdep install --from-paths src --ignore-src -y
+```
+
+Manual - Gazebo Garden Dependencies:
 
 ```bash
 sudo apt update
 sudo apt install libgz-sim7-dev rapidjson-dev
 ```
 
-Or Gazebo Harmonic:
+Manual - Gazebo Harmonic Dependencies:
 
 ```bash
 sudo apt update

package.xml

@@ -12,14 +12,14 @@
 
   <build_depend>rapidjson-dev</build_depend>  
 
-  <!-- Harmonic -->
+  <!-- Harmonic (default) -->
   <depend condition="$GZ_VERSION == harmonic">gz-cmake3</depend>
   <depend condition="$GZ_VERSION == harmonic">gz-sim8</depend>
-  <!-- Garden (default) -->
+  <depend condition="$GZ_VERSION == ''">gz-cmake3</depend>
+  <depend condition="$GZ_VERSION == ''">gz-sim8</depend>
+  <!-- Garden -->
   <depend condition="$GZ_VERSION == garden">gz-cmake3</depend>
   <depend condition="$GZ_VERSION == garden">gz-sim7</depend>
-  <depend condition="$GZ_VERSION == ''">gz-cmake3</depend>
-  <depend condition="$GZ_VERSION == ''">gz-sim7</depend>
 
   <test_depend>ament_lint_auto</test_depend>