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Effective Use of
Open Source Software
Ash Furrow, Teehan+Lax
@ashfurrow
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Agenda
1. How to Choose a Library
2. Traditional library management sucks
3. CocoaPods is the new hotness
4. Getting started is easy
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Premise: using open source is good
(more like “promise” amirite)
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Why?
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Why?
• Build applications faster
• Write less code
• Build better applications
• Expose yourself to other devs’ code
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“Library”?
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File Management
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This is a bad idea.
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A Bad Idea
• Dependency management Hell
• Lack of separation of code
• No versioning of libraries
• Per-file compiler flags
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Git Submodules
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Git Submodules
• A submodule is like a pointer to another repo
• Another repo at a specific point in its history
• Checks out code into your directory
• Submodule interface is not mature
• Still have to specify per-file flags
• Requires command-line interface
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Git Subtree
I don’t even.
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Git Subtree
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CocoaPods
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CocoaPods
• Manages versions and dependencies
• Solves a lot of problems with file-management
• Easy to use
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CocoaPods is to Objective-C as
RubyGems is to Ruby
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What is a CocoaPod
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CocoaPods
• A CocoaPod is a file that specifies a library
• Name, dependencies, version, etc
• CocoaPods is a tool to manage these specs
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How does this work?
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GitHub
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Getting Started
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Best Practices
• Don’t check in your Pods directory
• Use .gitignore
• Specify explicit version numbers
• Inhibit pod warnings
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Demo
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Creating a Library
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Creating a Library
• Specify a license
• Write a good README
• Include screenshots
• Include sample library usage
• Keep files organized
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Agenda
1. How to Choose a Library
2. Traditional library management sucks
3. CocoaPods is the new hotness, submodules
are OK too
4. Getting started is easy
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Ash Furrow
@ashfurrow
Thanks!