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Александр Воронов | Building CLI with Swift
The document discusses building command-line interfaces (CLI) using Swift, covering topics such as CLI arguments, standard I/O, Unix pipelines, and compiling executable scripts. It details how to manage dependencies, parse arguments, and utilize various libraries like CocoaPods, Carthage, and Swift Package Manager. Real-world examples and methods for scaling a CLI project with multiple files are also included.
Александр Воронов | Building CLI with Swift
- 1. IT Saturday •@aleks_voronov • Stanfy BUILDING CLI WITH SWIFT ALEXANDER VORONOV, STANFY @aleks_voronov
- 2. IT Saturday •@aleks_voronov • Stanfy REASON WHY?
- 3. IT Saturday •@aleks_voronov • Stanfy OTHER PLATFORMS
- 4. IT Saturday •@aleks_voronov • Stanfy JAVASCRIPT NODEJS NPM BOWER GULP GRUNT
- 5. IT Saturday •@aleks_voronov • Stanfy RUBY RACK RAILS SINATRA RUBYGEMS RAKE
- 6. IT Saturday •@aleks_voronov • Stanfy PYTHON PYPI PIP …
- 7. IT Saturday •@aleks_voronov • Stanfy SWIFT COCOAPODS CARTHAGE SPM PERFECT COMMANDANT
- 8. IT Saturday •@aleks_voronov • Stanfy FULLSTACK MULTIPLATFORM
- 9. IT Saturday •@aleks_voronov • Stanfy FULLSTACK MULTIPLATFORM
- 10. IT Saturday •@aleks_voronov • Stanfy WHAT IS CLI?
- 11. IT Saturday •@aleks_voronov • Stanfy WHAT IS CLI?
- 12. IT Saturday •@aleks_voronov • Stanfy CLI ARGUMENTS
- 13. IT Saturday •@aleks_voronov • Stanfy POSIX STANDARD 📘 SHORT FLAGS $ ls -a $ ruby -v $ git commit -m "..."
- 14. IT Saturday •@aleks_voronov • Stanfy GNU STANDARD 📙 LONG FLAGS $ ls --all $ ruby --version $ git commit --message "..."
- 15. IT Saturday •@aleks_voronov • Stanfy COMBINED FLAGS 🏴 $ git commit -a -m "..." $ git commit -am "..."
- 16. IT Saturday •@aleks_voronov • Stanfy SUBCOMMANDS 🏘 $ git log -2 $ git status $ git commit -am "..."
- 17. IT Saturday •@aleks_voronov • Stanfy STANDARD IO 📥📤 0 - STDIN 1 - STDOUT 2 - STDERR
- 18. IT Saturday •@aleks_voronov • Stanfy 0 - STDIN 1 - STDOUT 2 - STDERR $ cat nofile > cat: nofile: No such file or directory
- 19. IT Saturday •@aleks_voronov • Stanfy 0 - STDIN 1 - STDOUT 2 - STDERR $ cat nofile 2>>err.log
- 20. IT Saturday •@aleks_voronov • Stanfy 0 - STDIN 1 - STDOUT 2 - STDERR $ cat nofile 2>&1
- 21. IT Saturday •@aleks_voronov • Stanfy 0 - STDIN 1 - STDOUT 2 - STDERR $ cat nofile 2>>err.log 1>>out.log
- 22. IT Saturday •@aleks_voronov • Stanfy 0 - STDIN 1 - STDOUT 2 - STDERR $ cat nofile 2>/dev/null
- 23. IT Saturday •@aleks_voronov • Stanfy 0 - STDIN 1 - STDOUT 2 - STDERR $ cat nofile 2>&1 | grep kernel
- 24. IT Saturday •@aleks_voronov • Stanfy UNIX PIPELINES ⛓ $ ls -l | grep "Mar" | sort
- 25. IT Saturday •@aleks_voronov • Stanfy UNIX PIPELINES ⛓ $ ps aux | grep Xcode | awk '{print $2}'
- 26. IT Saturday •@aleks_voronov • Stanfy UNIX PIPELINES ⛓ $ git branch | xargs git branch -D 😈
- 27. IT Saturday •@aleks_voronov • Stanfy CLI WITH SWIFT 🖥
- 28. IT Saturday •@aleks_voronov • Stanfy SWIFT REPL 🔃 (READ-EVALUATION-PRINT-LOOP) $ swift
- 29. IT Saturday •@aleks_voronov • Stanfy IMMEDIATE MODE 🚀 $ swift script.swift
- 30. IT Saturday •@aleks_voronov • Stanfy SWIFT COMPILE ⚙ $ swiftc script.swift $ ./script
- 31. IT Saturday •@aleks_voronov • Stanfy SWIFT COMPILE ⚙ $ swiftc script.swift -o myscript $ ./myscript
- 32. IT Saturday •@aleks_voronov • Stanfy EXECUTABLE SCRIPTS 💾
- 33. IT Saturday •@aleks_voronov • Stanfy EXECUTABLE SCRIPTS #!/USR/BIN/SWIFT HASHBANG
- 34. IT Saturday •@aleks_voronov • Stanfy EXECUTABLE SCRIPTS CHMOD +X SCRIPT.SWIFT
- 35. IT Saturday •@aleks_voronov • Stanfy SCALING OUR CLI 🏗 WORKING WITH MULTIPLE FILES
- 36. IT Saturday •@aleks_voronov • Stanfy MAIN.SWIFT 👑
- 37. IT Saturday •@aleks_voronov • Stanfy EXECUTING MULTIPLE FILES📄📄 $ swift main.swift script.swift
- 38. IT Saturday •@aleks_voronov • Stanfy $ swiftc main.swift script.swift -o script EXECUTING MULTIPLE FILES📄📄
- 39. IT Saturday •@aleks_voronov • Stanfy $ swiftc script.swift main.swift -o script EXECUTING MULTIPLE FILES📄📄
- 40. IT Saturday •@aleks_voronov • Stanfy $ swiftc *.swift -o script EXECUTING MULTIPLE FILES📄📄
- 41. IT Saturday •@aleks_voronov • Stanfy $ find . -iname '*.swift' | xargs swiftc -o script EXECUTING MULTIPLE FILES📄📄
- 42. IT Saturday •@aleks_voronov • Stanfy EXTERNAL RESOURCES 🎁
- 43. IT Saturday •@aleks_voronov • Stanfy SYSTEM DEPENDENCIES 💼 $ swiftc script.swift $ xcrun -sdk macosx swiftc script.swift
- 44. IT Saturday •@aleks_voronov • Stanfy CUSTOM DEPENDENCIES 🛠 -F $ swift -F /Carthage/Build/Mac script.swift
- 45. IT Saturday •@aleks_voronov • Stanfy CUSTOM DEPENDENCIES #!/USR/BIN/SWIFT -F Carthage/Build/Mac HASHBANG
- 46. IT Saturday •@aleks_voronov • Stanfy COMPILING DEPENDENT SCRIPT 🤖
- 47. IT Saturday •@aleks_voronov • Stanfy $ xcrun -sdk macosx swiftc -F Carthage/Build/Mac script.swift COMPILING DEPENDENT SCRIPT > dyld: Library not loaded: @rpath
- 48. IT Saturday •@aleks_voronov • Stanfy $ xcrun -sdk macosx swiftc -F Carthage/Build/Mac script.swift -Xlinker -rpath -Xlinker @executable_path/Carthage/Build/Mac COMPILING DEPENDENT SCRIPT
- 49. IT Saturday •@aleks_voronov • Stanfy DEPENDENCIES MANAGEMENT 🍴
- 50. IT Saturday •@aleks_voronov • Stanfy COCOAPODS 🤔
- 51. IT Saturday •@aleks_voronov • Stanfy CARTHAGE 😏
- 52. IT Saturday •@aleks_voronov • Stanfy SPM 😳 SWIFT PACKAGE MANAGER
- 53. IT Saturday •@aleks_voronov • Stanfy PARSING ARGUMENTS 📬
- 54. IT Saturday •@aleks_voronov • Stanfy PARSING ARGUMENTS $ ./script one two three $ ./script one two three $ ./script "one two three" 3 args 1 arg 1 arg
- 55. IT Saturday •@aleks_voronov • Stanfy PROCESS ENUM Process.arguments == [ "./script.swift", "one", "two", "three" ]
- 56. IT Saturday •@aleks_voronov • Stanfy FILESYSTEM 🗄
- 57. IT Saturday •@aleks_voronov • Stanfy FILESYSTEM NSFILEMANAGER NSFILEHANDLER NSTASK NSPIPE
- 58. IT Saturday •@aleks_voronov • Stanfy HANDY LIBRARIES 🏛 COMMANDER OPTIONKIT COMMANDANT REACTIVETASKS PRETTYCOLORS
- 59. IT Saturday •@aleks_voronov • Stanfy REAL WORLD EXAMPLES 🌍 CARTHAGEKIT CARTHAGE CLI
- 60. IT Saturday •@aleks_voronov • Stanfy THANK YOU!
- 61. IT Saturday •@aleks_voronov • Stanfy Q/A @ALEKS_VORONOV A-VORONOV