Hi, I'm Shuoyen, This is Swift Argument Parser(SAP) introduction, I hope you will like it.

1. Swift Argument Parser
CocoaHeads Taipei Aug 13
By Danishuo

2. Danishuo 碩彥 🇹🇼 🇬🇧
iOS Developer 💻 🏍 🎾 ☕ 🍜 📘
Medium: https://medium.com/@yusatrtru
Github: https://github.com/danishuotw

3. Agenda
• What’s Swift Argument Parser?
• How to use it?
• Property wrapper
• Customizing help
• Validation
• Subcommands
• Demo

4. What’s Swift Argument Parser
• New framework package in Swift
• Allow you to create command line tools

6. Property Wrapper
• % example iOS Android Fultter
• % example –-count 1
• % example –-toggle

7. Customizing Help

8. Validation

9. How to make commands like git?
• git add .
• git push <remote> - tags
• git remote prune origin

10. Subcommands

11. Demo

12. Appendix: Swift Package Commands
• swift package init --type executable
• swift package generate-xcodeproj

13. Appendix: Reference
• GitHub: Swift Argument Parser
• swift.org: Announcing ArgumentParser

14. Metrics: Pods vs Carthage vs SPM
https://www.innominds.com/blog/a-new-approach-to-managing-dependencies-in-ios-development-with-
swift-package-manager

15. Note:
Decimal conform to ExpressibleByArgument

16. Note:
How to get Unix executable file
• -> swift -c release
• -> cd .build
• -> cd release
• -> find <project> exec file