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Write Professional Command-line Programs in Go

Gain insights into writing professional command-line programs in Go. Delve into structuring Go programs, writing idiomatic code, testing effectively, and impressing users and managers.

Intermediate

63 Lessons

28h 30min

Certificate of Completion

Gain insights into writing professional command-line programs in Go. Delve into structuring Go programs, writing idiomatic code, testing effectively, and impressing users and managers.

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This course includes

64 Playgrounds

24 Quizzes

Course Overview

Course Content

Course Overview

In this course you will learn why Go is an awesome language for writing command-line programs. You will learn how to structure your Go programs, how to write idiomatic Go code, how to test your programs and how to amaze your users, peers and managers. The focus is on command-line programs in order to keep the course down to earth, but most of the principles and best practices you will learn apply to any Go program.

Course Content

Overview

7 Lessons

Learn how to use Go to build versatile and efficient command-line programs.

What's a Command-Line Program?

Why Go?

Lightning Quick Introduction to Go

Ten Popular Go Projects

Introducing Multi-git 0.1

Analyzing Multi-git 0.1

Improving Multi-git

Restructuring multi-git

5 Lessons

Unpack the core of restructuring multi-git for better code organization and collaboration.

The foundations of a Go Program

Creating the Directory Structure

Refactoring the Core Logic

Adding a Helpers Package

Refactoring the Command-Line interface

Testing 1,2,3...

11 Lessons

Examine Go's testing capabilities, tools like Ginkgo and Gomega, and comprehensive e2e testing.

Introducing the Built-in Go Testing Support

Running Go Tests

Checking Test Coverage

Quick introduction to Ginkgo and Gomega

Writing BDD Tests for Multi-git

Running Unit Tests for Multi-git

Preparing for End-to-End Tests

Building the Foundation for End to End Tests

Writing End-to-End Tests

Running End-to-End Tests

Debugging With Tests

Adding Smart Command-Line Parsing

13 Lessons

Grasp the fundamentals of using Cobra for structured command-line applications in Go.

Introduction to Cobra

Comparing Cobra to Alternatives

Working with Cobra - The Root Command

Working with Cobra - The Sub-commands

Working with Cobra - Flags

Understanding the Cobra Generator

Creating an Application Skeleton With the Cobra Generator

Adding Commands With the Cobra Generator

Building the Application on Top of the Skeleton

Finalizing the Cobra-generated Application

Refactoring Multi-git to use Cobra - The Plan

Refactoring Multi-git to use Cobra - The Root Command

Finalizing the Integration of Cobra into Multi-git

Adding Advanced Configuration

13 Lessons

Harness advanced configuration techniques in Go, using Viper and Cobra for flexible and efficient command-line programs.

Understanding Program Configuration

Taking Advantage of Sophisticated Configuration

Introduction to Viper

Viper and Environment Variables

Locating Configuration Files

Reading and Writing Configuration Files

Watching Configuration Files

Understanding Remote Configuration

Dynamic Remote Configuration with Viper

Understanding the Synergy Between Cobra and Viper

Integrating Cobra and Viper

Refactoring Multi-git to use Viper

Adding a Configuration File to Multi-git

Adding Bells and Whistles

13 Lessons

See how it works to enhance Go command-line programs with builds, linking, CI/CD, and Docker.

Understanding the Go Build Process

Building Go Packages

Linking Go Programs

Embedding Data Into Go Programs

Introduction to Self-Updating Programs and GitHub Actions

Making a CI/CD Pipeline for multi-git

Creating GitHub Releases for Multi-git

Transforming multi-git to a Self-Updateable Program

Introduction to Containers and Docker

Using a multi-Stage Dockerfile

Dockerizing multi-git

Introduction to Makefiles

Adding a Makefile for Multi-git

Summary

1 Lessons

Build on developing versatile Go command-line programs, testing, and cloud-related technologies.

Course Recap

Course Author

Gigi Sayfan

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