[iOS] dependency management

Talk held at mobile maultaschen, our local mobile developer user group

Transcript

1. dependency management
2. iOS OS X watchOS tvOS
3. why?
4. lots of problems were solved by smarter people
5. don’t reinvent the wheel
6. unless you plan on learning more about wheels
7. how to choose?
8. forks?
9. watchers?
10. pull requests?
11. open issues?
12. releases?
13. documentation?
14. unit tests?
15. metrics
16. understand everything
17. CocoaPods quality index
18. bus factor !
19. gem install github_bus_factor +-----+-----------------------------------------------------------+ | afnetworking/afnetworking | +-----+-----------------------------------------------------------+ | ! | 7298 forks. | | " | 1684 watchers. | | # | 22999 stars. | | $ | Created over 4 years ago; last push about 10 hours ago. | | % | 1182 PRs: 1167 closed; 15 opened; 98.73% PRs are closed. | | & | Deletions to additions ratio: 74.72% (-136225/182307). | | ' | 34 releases; latest release "3.0.4": about 2 months ago. | | ( | Bus factor: 100.0%. Most likely one core contributor. | +-----+-----------------------------------------------------------+
20. semantic versioning !!!
21. 1.2.3
22. how?
24. sets up everything for you
25. actively maintained
26. huge userbase
27. Podfile
28. source 'https://github.com/CocoaPods/Specs.git' source 'https://github.com/keslcod/specs.git' platform :ios, '7.0' inhibit_all_warnings! def common_pods pod 'Aspects', git: 'https://github.com/keslcod/Aspects', tag: '1.4.3' pod 'ISO8601DateFormatter', git: 'https://github.com/keslcod/iso-8601-date-formatter', tag: '0.7.1' pod 'Mantle', '~>1.5' pod 'NSDate-Escort', git: 'https://github.com/keslcod/NSDate-Escort', tag: '1.5.3' end target 'Apotheken', exclusive: true do common_pods pod 'ActionSheetPicker-3.0' pod 'DZNEmptyDataSet' pod 'FXReachability', '~> 1.1' pod 'GBDeviceInfo', '~> 3.0' pod 'GoogleAnalytics', '~> 3.0' pod 'GoogleMaps', '~>1.10' pod 'GRMustache', '~> 7.3' pod 'HockeySDK' pod 'LiveFrost' pod 'M13BadgeView', git: 'https://github.com/keslcod/M13BadgeView.git' pod 'MagicalRecord/Core+Logging', git: 'https://github.com/magicalpanda/MagicalRecord.git', commit: 'e1703233f141535263555ca154c559a86c127e23' pod 'MD5Digest' pod 'MDCalendar', git: 'https://github.com/keslcod/MDCalendar.git' pod 'MKMapViewZoom' pod 'MWPhotoBrowser', git: 'https://github.com/keslcod/MWPhotoBrowser.git' pod 'PSTAlertController' pod 'PureLayout' pod 'RHAddressBook', '~>1.1' pod 'SDWebImage', :head pod 'SMCalloutView', '~> 2.1' pod 'SVProgressHUD', :head pod 'SVWebViewController', '~>1.0' pod 'TFBarcodeScanner', '~>1.1' pod 'UIButton+TouchAreaInsets' pod 'XLForm', git: 'https://github.com/keslcod/XLForm.git' end target 'Apotheken Watch App Extension', :exclusive => true do platform :watchos, '2.0' common_pods end target 'Apotheken Watch App', :exclusive => true do platform :watchos, '2.0' common_pods end
29. pod install
30. it just works™
31. unless it doesn’t
32. CocoaPods !
33. Unable to read CocoaPods-version.yml
34. ruby
35. hard to understand if something goes wrong
36. .xcconfig files become difficult to use
37. requires .podspec file
38. breaking .podspec changes
39. Carthage
40. only manages dependencies
41. Cartfile
42. Cartfile github "ReactiveCocoa/ReactiveCocoa" >= 2.3.1 github "jspahrsummers/xcconfigs" github "Mantle/Mantle" ~> 1.0 git "file:///directory/to/project" "branch"
43. Cartfile.private
44. Carthage !
45. you must setup everything
46. bugs in Apple’s toolchain
47. Swift package manager
48. Manager is still in early design and development (…) all details are subject to change and many important features are yet to be
49. demo !
50. tips adjust .gitignore git/svn add Carthage/Checkouts git/svn add Pods git commit -m 'Update Carthage/Pods'
51. links 4 http://blog.codinghorror.com/dont- reinvent-the-wheel-unless-you-plan-on- learning-more-about-wheels/ 4 https://cocoapods.org 4 https://github.com/carthage/carthage 4 https://guides.cocoapods.org/making/ quality-indexes.html 4 https://en.wikipedia.org/wiki/ Bus_factor
52. links 4 https://github.com/zats/ github_bus_factor 4 https://swift.org/package-manager