fgm / subcommands_demo

A tutorial for the github.com/google/subcommands package

Multi-level demo for github.com/google/subcommands

This tutorial contains one branch per topic.

Usage

Checkout each branch in turn to learn one level at a time.

• Ensure you have already installed:
  • A working Go SDK
  • The staticcheck linting tool
  • The make command
• Run make to see the new features in that branch

Contents

1. simple subcommands
   1. basic usage with builtin commands
   2. creating commands with the procedural API
   3. passing non-CLI arguments
   4. command groups
   5. adding command flags
   6. marking flags as important
2. reusing command code
3. commanders
   1. procedural vs object API
   2. creating commands with custom commanders
   3. creating a testable command structure
4. creating nested commands
5. beyond NewCommander
   1. controlling output
   2. introspecting commanders
   3. replacing builtins