CocoaPods is a dependency manager for Cocoa projects. It allows you to specify library dependencies in a Podfile, and installs/updates those libraries and their dependencies. It works by generating an Xcode workspace that includes library source files and automatically configures build settings. CocoaPods manages library updates through a specification (podspec) file that describes each library and its dependencies.

1. Dependencies
management
with CocoaPods
Denis Lebedev

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 lint
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/

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

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. Spec template
~pod spec create https://github.com/repo

27. 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

28. More
weak_frameworks
s.osx.source_files = ‘MyNSTableView.
{h,m}’

29. Share pod
specifications

30. ‘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

31. 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

32. ‘Appstore’ for libs

33. Thanks!
Questions?
twitter: @delebedev
skype: d2.lebedev