Building CLI with Swift

https://youtu.be/5h-l_ou95_o

Transcript

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