Reviewing Vapor-generated files

After using the preceding steps to create a boilerplate helloWorld project, use the ls -a command in the helloWorld project directory to list all files and child directories:

# List all files and directories, including the hidden ones
ls -a

The -a flag is used here so you can view all files, including hidden files and directories:

.                 .build          .gitignore                  Package.swift         README.md            Tests               cloud.yml
 ..                .git               Package.resolved     Public Sources       circle.yml

Vapor generates some hidden directories, such as .build and .git.

The .build directory contains all the dependencies and temporary files when you build your project. If you execute the vapor clean Vapor CLI command, the .build directory will be removed. Then you have to use vapor build to fetch...