Wrapping Up
Powerful Command-Line Applications in Go — by Ricardo Gerardi (71 / 127)
👈 Exercises | TOC | Chapter 7 Using the Cobra CLI Framework 👉
In this chapter, you designed and built a flexible tool that uses other tools and commands to execute specialized tasks in an automated way. You executed external commands, managed their error conditions, captured their output, and handled long-running processes appropriately. You tested your application using two different strategies: using a test helper to build a temporary local infrastructure, and mocking the external command. Finally, you ensured your application handles the operating system signal in a clean way to correctly communicate status to downstream applications and to prevent data loss.
In the next chapter, you’ll use the Cobra CLI framework to help you develop a command-line network port scanner by generating the boilerplate code for the application and handling flags and configuration in a more comprehensive way.
Footnotes
[31] https://pkg.go.dev/errors
[32] https://blog.golang.org/go1.13-errors
[33] https://golang.org/cmd/gofmt/
[35] https://git-scm.com/book/en/v3/Git-on-the-Server-The-Protocols
