This document discusses CocoaPods, an open-source dependency manager for Cocoa projects like iOS and OS X apps. It explains how to install and use CocoaPods to manage third-party library dependencies through a Podfile. Key features covered include creating and contributing podspecs to define libraries, versioning, targeting multiple configurations, and sharing specifications through public or private spec repositories.

1. Advanced dependencies
with CocoaPods
Denis Lebedev
@delebedev

2. Why do we need it?

3. Drag & drop

4. Git submodule

5. 3rd-party
(do they exist at all?)

6. CocoaPods
http://cocoapods.org

7. Install
$ sudo gem install cocoapods

8. Create Podfile
platform :ios
pod 'AFNetworking'
pod 'MBProgressHUD'
pod 'OHAttributedLabel'
pod 'MagicalRecord', '= 1.8.3'
pod 'EGOImageLoading'
pod 'AQGridView'
pod 'Facebook-iOS-SDK'
pod 'DCIntrospect'
pod 'OCMock'

9. Add libs to the project
$ pod install

10. How it works

11. Write own specs
$ pod spec create MySpec
$vim MySpec.podspec
$pod spec line MySpec.podspec

12. Spec example

13. Contribute
(>650 podspecs already)

14. Podfile options

15. Platform
platform: ios, 4.0
Versioning
pod ‘EgoImageView’, ‘<=1.2’
pod ‘EgoImageView’, ‘:head’

16. Multiple targets
pod 'RestKit'
target :debug do
pod 'CocoaLumberjack'
end
target :test, :exclusive => true do
link_with “MyAppTests”
pod 'Kiwi'
end

17. Turn off all warnings in
lib sources
inhibit_all_warnings!

18. Podspec sources

19. Spec in the root
of lib repo
pod 'AFNetworking', :git => 'https://github.com/
gowalla/AFNetworking.git', :commit => '082f8319af'

20. Lib without podspec
pod 'JSONKit', :podspec => 'https://raw.github.com/
gist/1346394/1d26570f68ca2d72/JSONKit.podspec'

21. Lib without any available
podspec
pod do |spec|
spec.name = 'JSONKit'
spec.version = '1.4'
spec.source = { :git => 'https://github.com/
johnezang/JSONKit.git', :tag => 'v1.4' }
spec.source_files = 'JSONKit.*'
end

22. Local pod
pod 'libAwesome', :local => '~/path/libAwesome'
*podspec should be in the folder

23. Pod specification

25. Dependencies
...
s.dependency = ‘JSONKit’, ‘<1.4’
...

26. Subspecs
pod ‘RestKit/JSON’
Pod::Spec.new do |s|
s.name = 'RestKit'
s.preferred_dependency = 'JSON'
...
s.subspec 'JSON' do |js|
js.dependency 'RestKit/ObjectMapping/JSON'
js.dependency 'RestKit/ObjectMapping/CoreData'
js.dependency 'RestKit/UI'
end
s.subspec 'XML' do |xs|
...
end
...
end

27. More
weak_frameworks
s.osx.source_files = ‘MyNSTableView.{h,m}’
s.ios.source_files = ‘MySuperUITableView.{h,m}’

28. Share pod specifications

29. ‘Private’ specs repo
$ pod repo add my-spec-repo http://github.com/
my-account/spec-repo.git
$ pod push my-spec-repo
$ cd ~/.cocoapods/my-spec-repo
$ git remote add upstream git://github.com/
CocoaPods/Specs.git

30. Public specs repo*
$ cd ~/.cocoapods/master
$ git remote set-url origin
git@github.com:CocoaPods/Specs.git
*If you have push access to master-repo

31. ‘Appstore’ for libs

32. Thanks!
Questions?