ObjectiveGit

ObjectiveGit provides Cocoa bindings to the libgit2 library, packaged as a dynamic framework for OS X and iOS 8 or better.

Features

A brief summary of the available functionality:

Read: log, diff, blame, reflog, status
Write: init, checkout, commit, branch, tag, reset
Internals: configuration, tree, blob, object database
Network: clone, fetch, push, pull
Transports: HTTP, HTTPS, SSH, local filesystem

Not all libgit2 features are available, but if you run across something missing, please consider contributing a pull request!

Many classes in the ObjectiveGit API wrap a C struct from libgit2 and expose the underlying data and operations using Cocoa idioms. The underlying libgit2 types are prefixed with git_ and are often accessible via a property so that your application can take advantage of the libgit2 API directly.

The ObjectiveGit API makes extensive use of the Cocoa NSError pattern. The public API is also decorated with nullability attributes so that you will get compile-time feedback of whether nil is allowed or not. This also makes the framework much nicer to use in Swift.

Getting Started

Xcode

ObjectiveGit requires Xcode 7 or greater to build the framework and run unit tests. Projects that must use an older version of Xcode can use Carthage to install pre-built binaries or download them manually.

Other Tools

Simply run the script/bootstrap script to automatically install dependencies needed to start building the framework. This script uses Homebrew to install these tools. If your Mac does not have Homebrew, you will need to install the following manually:

cmake
libtool
autoconf
automake
pkg-config
libssh2
- symlinks: lib/libssh2.a include/libssh2.h include/libssh2_sftp.h include/libssh2_publickey.h

To develop ObjectiveGit on its own, open the ObjectiveGitFramework.xcworkspace file.

Installation

There are three ways of including ObjectiveGit in a project:

Carthage <-- recommended
Manual
Subproject

Carthage

Add ObjectiveGit to your Cartfile.

github "libgit2/objective-git"

Run carthage update.
Mac targets

On your application targets' "General" settings tab, in the "Embedded Binaries" section, drag and drop the ObjectiveGit.framework from the Carthage/Build/Mac folder on disk.

iOS targets

On your application targets' "General" settings tab, in the "Linked Frameworks and Libraries" section, drag and drop the ObjectiveGit.framework from the Carthage/Build/iOS folder on disk.
On your application targets' "Build Phases" settings tab, click the “+” icon and choose “New Run Script Phase”. Create a Run Script with the following contents:

/usr/local/bin/carthage copy-frameworks

and add the paths to the frameworks you want to use under “Input Files”, e.g.:

$(SRCROOT)/Carthage/Build/iOS/ObjectiveGit.framework

Commit the Cartfile.resolved
Under “Build Settings”, add the following to “Header Search Paths”: $(SRCROOT)/Carthage/Build/iOS/ObjectiveGit.framework/Headers/ to avoid git2/filter.h file not found errors.

The different instructions for iOS works around an App Store submission bug triggered by universal binaries.

Copying debug symbols for debugging and crash reporting

dSYM files are not currently included in the GitHub release zip files. You will need to pass --no-use-binaries to carthage in order to build locally and generate the dSYM files alongside the framework.

On your application target's "Build Phases" settings tab, click the "+" icon and choose "New Copy Files Phase".
Click the “Destination” drop-down menu and select "Products Directory".
Drag and drop the ObjectiveGit.framework.dSYM file from Carthage/Build/[platform] into the list.

Manual

Download the latest ObjectiveGit.framework.zip from releases.
Unzip the file.
Follow the Carthage instructions #3 or #4, depending on platform.

Note that the iOS framework we release is a "fat" framework containing slices for both the iOS Simulator and devices. This makes it easy to get started with your iOS project. However, Apple does not currently allow apps containing frameworks with simulator slices to be submitted to the app store. Carthage (above) already has a solution for this. If you're looking to roll your own, take a look at Realm's strip frameworks script.

Subproject

Examples

OS X: CommitViewer
iOS: ObjectiveGit iOS Example

Add ObjectiveGit as a submodule to your project:

git submodule add https://github.com/libgit2/objective-git.git External/ObjectiveGit

Run script/bootstrap.
Drag the ObjectiveGitFramework.xcodeproj file into the Project Navigator pane of your project.
Add ObjectiveGit-Mac or ObjectiveGit-iOS as a target dependency of your application, depending on platform.
Link your application with ObjectiveGit.framework.
Set the “Header Search Paths” (HEADER_SEARCH_PATHS) build setting to the correct path for the libgit2 headers in your project. For example, if you added the submodule to your project as External/ObjectiveGit, you would set this build setting to External/ObjectiveGit/External/libgit2/include. If you see build errors saying that git2/filter.h cannot be found, then double-check that you set this setting correctly.
Add a new "Copy Files" build phase, set the destination to "Frameworks" and add ObjectiveGit.framework to the list. This will package the framework with your application as an embedded private framework.

It's hard to tell the difference between the platforms, but the Mac framework is in build/Debug whereas the iOS framework is in build/Debug-iphoneos

Don't forget to #import <ObjectiveGit/ObjectiveGit.h> or @import ObjectiveGit; as you would with any other framework.

Contributing

Fork this repository
Make it awesomer (preferably in a branch named for the topic)
Send a pull request

All contributions should match GitHub's Objective-C coding conventions.

You can see all the amazing people that have contributed to this project here.

License

ObjectiveGit is released under the MIT license. See the LICENSE file.

License

gitx/objective-git

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