back to source install gazebo harmonic

Author: woensug-choi

README.md

@@ -54,10 +54,22 @@ The reasons for installing ROS2 Jazzy natively on Apple Silicon Macbooks are:
   6. Post Installation
     - Generate a config file in the workspace
     - Make source script
-  
-### Gazebo Harmonic Installation
-  - Install the binary package provided by the OSRF with homebrew
-  - If fails, try reinstall with `brew reinstall $(brew deps gz-harmonic) gz-harmonic`
+
+### Gazebo Harmonic Installation (`gz_install.sh`)
+  1. Checking System Requirements
+    - Create a workspace for Gazebo Harmonic (default: `~/gz_harmonic`)
+    - Check the Python virtual environment
+  2. Install Dependencies
+    - Install Brew dependencies
+    - Install Python dependencies
+    - Set environmetnal variables for brew packages
+    - Install xquartz
+  3. Download Gazebo Harmonic Source Code
+    - Clone Gazebo Harmonic Source Code
+  4. Compile Gazebo Harmonic
+  5. Post Installation
+    - Read/append to the config file in the workspace
+    - Regenerate source script
 
 ## Notes
 - `eclipse-cyclonedds` is excluded from the installation process