Book Image

The Go Workshop

By : Delio D'Anna, Andrew Hayes, Sam Hennessy, Jeremy Leasor, Gobin Sougrakpam, Dániel Szabó
5 (2)
Book Image

The Go Workshop

5 (2)
By: Delio D'Anna, Andrew Hayes, Sam Hennessy, Jeremy Leasor, Gobin Sougrakpam, Dániel Szabó

Overview of this book

The Go Workshop will take the pain out of learning the Go programming language (also known as Golang). It is designed to teach you to be productive in building real-world software. Presented in an engaging, hands-on way, this book focuses on the features of Go that are used by professionals in their everyday work. Each concept is broken down, clearly explained, and followed up with activities to test your knowledge and build your practical skills. Your first steps will involve mastering Go syntax, working with variables and operators, and using core and complex types to hold data. Moving ahead, you will build your understanding of programming logic and implement Go algorithms to construct useful functions. As you progress, you'll discover how to handle errors, debug code to troubleshoot your applications, and implement polymorphism using interfaces. The later chapters will then teach you how to manage files, connect to a database, work with HTTP servers and REST APIs, and make use of concurrent programming. Throughout this Workshop, you'll work on a series of mini projects, including a shopping cart, a loan calculator, a working hours tracker, a web page counter, a code checker, and a user authentication system. By the end of this book, you'll have the knowledge and confidence to tackle your own ambitious projects with Go.
Table of Contents (21 chapters)
Free Chapter
1. Variables and Operators
2. Logic and Loops

Wildcard Pattern

The go tool has a number of commands to help you with your code development. For example, the go list command helps you list Go files in your current directory, and the go test command helps you run test files in your current directory.

Your project may be structured in multiple subdirectories to help organize your code logically. If you wanted to use the go tool to run commands over your whole codebase at once, it supports a wildcard pattern that helps you do just that.

To list all the .go files in your current directory and its subdirectories, you can use the following relative pattern:

go list ./...

Similarly, if you wanted to run all the tests in your current directory and subdirectories, the same pattern can be used:

go test ./...

If you are still using vendor directories, the good thing is that this pattern will ignore the ./vendor directories.

Let's try the wildcard patterns on the Go workshop repository.

To list all the .go files...