دانلود کتاب Powerful Command-Line Applications in Go

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Contents & Extracts Foreword Acknowledgments Preface What’s in This Book How to Use This Book About the Example Code Go Modules Online Resources Your First Command-Line Program in Go Building the Basic Word Counter Testing the Basic Word Counter Adding Command-Line Flags Compiling Your Tool for Different Platforms Exercises Wrapping Up Interacting with Your Users Organizing Your Code Defining the To-Do API Creating the Initial To-Do Command-Line Tool Testing the Initial CLI Implementation Handling Multiple Command-Line Options Display Command-Line Tool Usage Improving the List Output Format Increasing Flexibility with Environment Variables Capturing Input from STDIN Exercises Wrapping Up Working with Files in Go Creating a Basic Markdown Preview Tool Writing Tests for the Markdown Preview Tool Adding Temporary Files to the Markdown Preview Tool Using Interfaces to Automate Tests Adding an Auto-Preview Feature Cleaning Up Temporary Files Improving the Markdown Preview Tool with Templates Exercises Wrapping Up Navigating the File System Developing a File System Crawler Testing with Table-Driven Testing Deleting Matched Files Testing with the Help of Test Helpers Logging Deleted Files Archiving Files Exercises Wrapping Up Improving the Performance of Your CLI Tools Developing the Initial Version of colStats Writing Tests for colStats Benchmarking Your Tool Profiling Your Tool Reducing Memory Allocation Tracing Your Tool Improving the colStats Tool to Process Files Concurrently Reduce Scheduling Contention Exercises Wrapping Up Controlling Processes Executing External Programs Handling Errors Writing Tests for Goci Defining a Pipeline Adding Another Step to the Pipeline Handling Output from External Programs Running Commands with Contexts Integration Tests with a Local Git Server Testing Commands with Mock Resources Handling Signals Exercises Wrapping Up Using the Cobra CLI Framework Starting Your Cobra Application Navigating Your New Cobra Application Adding the First Subcommand to Your Application Starting the Scan Package Creating the Subcommands to Manage Hosts Testing the Manage Hosts Subcommands Adding the Port Scanning Functionality Using Viper for Configuration Management Generating Command Completion and Documentation Exercises Wrapping Up Talking to REST APIs Developing a REST API Server Testing the REST API Server Completing the REST API Server Developing the Initial Client for the REST API Testing the Client Without Connecting to the API Viewing a Single Item Adding an Item Testing HTTP Requests Locally Completing and Deleting Items Executing Integration Tests Exercises Wrapping Up Developing Interactive Terminal Tools Initializing the Pomodoro Application Storing Data with the Repository Pattern Testing the Pomodoro Functionality Building the Interface Widgets Organizing the Interface’s Layout Building the Interactive Interface Initializing the CLI with Cobra Exercises Wrapping Up Persisting Data in a SQL Database Getting Started with SQLite Go, SQL, and SQLite Persisting Data in the Database Testing the Repository with SQLite Updating the Application to Use the SQLite Repository Displaying a Summary to the Users Exercises Wrapping Up Distributing Your Tool Starting the Notify Package Including OS-Specific Data Including OS-Specific Files in the Build Testing the Notify Package Conditionally Building Your Application Cross-Compiling Your Application Compiling Your Go Application for Containers Distributing Your Application as Source Code Exercises Wrapping Up