cobra

README

Cobra

Cobra is both a library for creating powerful modern CLI applications as well as a program to generate applications and command files. Cobra is also an application that will generate your application scaffolding to rapidly develop a Cobra-based application.

Notes

• Easy subcommand-based CLIs: app server, app fetch, etc.
• Fully POSIX-compliant flags (including short & long versions)
• Nested subcommands
• Global, local and cascading flags
• Easy generation of applications & commands with cobra create appname & cobra add cmdname
• Intelligent suggestions (app srver... did you mean app server?)
• Automatic help generation for commands and flags
• Automatic detailed help for app help [command]
• Automatic help flag recognition of -h, --help, etc.
• Automatically generated bash autocomplete for your application
• Automatically generated man pages for your application
• Command aliases so you can change things without breaking them
• The flexibilty to define your own help, usage, etc.
• Optional tight integration with viper for 12-factor apps

Links

https://github.com/spf13/cobra

http://spf13.com/post/announcing-cobra/

Code Review

main

commands

create command

Exercises

Exercise 1

Add a new user command called get to retrieve a user record by email. For now reuse the User type and create a value and return some fake data. Then display the user value in the terminal. The purpose of the exercise it to wire up a new command. Use the create command as your template.

Answer

---

All material is licensed under the Apache License Version 2.0, January 2004.

Documentation

Overview

This program provides a sample building cli tooling.