CocoaPods - A better way to use and publish open source project for Objective-C

Transcript

1. 1.

   CocoaPods A better way to use and publish open source

   project for Objective-C
2. 2.

   Francis Chong @siuying

3. 3.

   Cocoa

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   A cocoa pod http://en.wikipedia.org/wiki/Cocoa_bean

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   cocoapods.org “CocoaPods is the dependency manager for Objective-C projects.”

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   Dependency Manager

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   dependency?

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   System Frameworks

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   Reusable Components

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    Third Party Code

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    Manage Dependency, the old way

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    “Drag the *.h and *.m file to Xcode”

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    None
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    Static Library

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    Frameworks

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    None
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    “dependency hell”

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    A -> C (version 1) B -> C (version 2)

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    A -> C (version 1) B -> C (version 2)

    C -> D (version 3) E -> D (version 4) F -> B (version 5)
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    Better way to manage dependency?

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    rubygems pip npm

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    CocoaPods Basic

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    Installation

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    sudo gem install cocoapods

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    pod setup

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    Project Setup

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    cd MyApp! pod init

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    Podfile

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    None
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    “The Podfile is a specification that describes the dependencies of

    the targets of one or more Xcode projects.” cocoapods.org
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    DSL for dependencies

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    None
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    None
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    None
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    None
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    None
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    Podspecs

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    “A Podspec, or Spec, describes a version of a Pod

    library.” cocoapods.org
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    None
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    None
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    None
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    None
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    Repo

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    “The Specs Repo is git repository that contains the list

    of available pods.” cocoapods.org
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    None
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    “Every library has an individual folder, which contains sub folders

    of the available versions of that pod. ”
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    None
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    Install Dependencies

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    pod install

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    None
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    What happened when you run pod install ?

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    Update Podspecs Repo

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    Resolve Dependency

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    None
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    Semantic Versioning http://semver.org/

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    1.6.4 MAJOR.MINOR.PATCH

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    MAJOR - incompatible API changes

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    MINOR - add functionality in a backwards-compatible manner

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    PATCH - backwards- compatible bug fixes.

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    1.6.4 MAJOR.MINOR.PATCH

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    Download Dependencies

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    git hg svn bzr http

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    Generate Pods project

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    Generate workspace

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    None
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    Advance Topics

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    Making a CocoaPod

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    pod spec create MyLibrary

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    MyLibrary.podspec

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    None
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    pod lib create MyLibrary

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    !"" Assets! !"" Classes! #"" ios! #"" osx! !"" Resources!

    !"" Example! #"" Podfile! !"" CHANGELOG.md! !"" LICENSE! !"" README.md! #"" MyLibrary.podspec!
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    MyLibrary.podspec

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    README.md CHANGELOG.md LICENSE

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    Example/Podfile

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    None
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    Release Pod

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    None
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    Publish your pod to public Repo

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    Fork the CocoaPods/ Specs repo

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    .! !"" Specs! #"" [SPEC_NAME]! #"" [VERSION]! #"" [SPEC_NAME].podspec

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    .! !"" MyLibrary! #"" 0.1.0! #"" MyLibrary.podspec! #"" 0.2.0! #""

    MyLibrary.podspec
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    Send a Pull Request

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    Your Private Pods

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    Specify your own Podspec

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    None
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    None
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    Create Your Repo

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    .! !"" Specs! #"" [SPEC_NAME]! #"" [VERSION]! #"" [SPEC_NAME].podspec

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    pod repo add REPO_NAME SOURCE_URL!

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    CocoaPods Today

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    0.29.0

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    4227 Pods 12372 Versions

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    Most merged pull request #2 http://octoverse.github.com/

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    CocoaPods Bug Bash http://blog.cocoapods.org/CocoaPods-Bug-Bash/

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    Learn from CocoaPods

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    Automation

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    Use existing infrastructure and tools

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    Build a MVP

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     Embrace opensource

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     Francis Chong @siuying

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     Readings • CocoaPods Guide • Semantic Versioning • iOS Static

     Libraries Are, Like, Really Bad, And Stuff • kstenerud/iOS-Universal-Framework