cover of episode Crawl, walk & run your way to usable CLIs in Go

Crawl, walk & run your way to usable CLIs in Go

2024/11/12
logo of podcast Go Time: Golang, Software Engineering

Go Time: Golang, Software Engineering
AI Deep Dive AI Chapters Transcript
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M
Magic Founder & CTO of Fly.io
W
Wesley Beary
Topics
Fly.io 的创始人兼 CTO 阐述了 Fly.io 平台的优势，强调其灵活性和可扩展性，能够满足不同世代开发者的需求，并支持复杂的应用特性，例如机器学习模型的本地运行和全球部署。他以自身经验为例，说明了 Fly.io 如何解决传统平台在扩展性和地理位置部署方面的局限性。 Anchor 的 Wesley Beary 分享了团队在 Go 语言环境下开发 CLI 的经验，重点在于如何快速迭代、追求最佳用户体验以及解决测试覆盖率等挑战。他详细描述了团队在测试策略上的演变，从最初的单元测试到采用“golden file”测试方法，并对该方法进行了改进，以解决时间相关的竞争条件问题。他还介绍了团队如何利用契约式设计和 mock server (Prism) 来实现 API 和 CLI 的并行开发，以及如何利用 schema 校验来保证数据一致性和减少错误。此外，他还探讨了版本兼容性问题，以及团队如何通过版本控制和最小可接受版本来管理 API 和 CLI 的更新。 Wesley Beary 详细介绍了 Anchor CLI 的设计理念，强调了用户体验的重要性。他阐述了团队如何通过主动引导用户完成登录和配置等操作，以及提供交互式反馈机制来提升用户体验，避免了传统 CLI 工具中常见的错误提示和复杂操作流程。他还分享了团队在 CLI 设计中的一些经验，例如如何利用交互式模式来简化复杂操作，以及如何设计 API 风格的低级别命令来满足高级用户的需求。同时，他还表达了对 CLI 测试的看法，认为在多命令 CLI 中，应该避免使用位置参数，而应使用标志参数，以提高代码的可读性和可维护性，并使学习曲线更平缓。

Deep Dive

Chapters
Wesley Beary discusses how he tailors his explanation of Fly.io based on the audience, emphasizing its flexibility and developer-friendly features.
  • Fly.io offers a platform with primitives that allow developers to build their own missions.
  • The platform is designed to be flexible and scalable, allowing apps to be deployed globally with ease.

Shownotes Transcript

With the number of libraries available to Go developers these days, you’d think building a CLI app was now a trivial matter. But like many things in software development, it depends. In this episode, we explore the challenges that arose during one team’s journey towards a production-ready CLI.

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