OkBuck

OkBuck is a gradle plugin that lets developers utilize the Buck build system on a gradle project.

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Installation

These are needed to build with buck Installation instructions for: Android NDK, Watchman

Configuration

Set the ANDROID_NDK environment variable to point to your android ndk installation

In root project build.gradle file:

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.uber:okbuck:0.40.1'
    }
}

repositories {
    jcenter()
}

apply plugin: 'com.uber.okbuck'

After applying the plugin, the following tasks will be added to the root project

• buckWrapper will create a buck wrapper script and various configuration files to invoke buck commands
• okbuck will generate BUCK files

Buck Wrapper

Run the buck wrapper task

./gradlew :buckWrapper

This creates a buckw wrapper similar to the gradle wrapper

Invoking buck commands via the buck wrapper has several advantages

• Downloads/installs/updates buck
• Minimal overhead to decide when to run okbuck before invoking buck (using watchman)
• Handles gracefully, the cases when okbuck task fails/is stopped abruptly

Please make sure you have watchman installed for buckw to run okbuck only when needed. A new okbuck run is typically needed when gradle configuration or Android manifest files change. If watchman is not installed, the okbuck task in always run before invoking any buck commands.

Usage

# List all buck targets
./buckw targets

# Build a target
./buckw build <target>

# Install an apk target
./buckw install --run <apk-target>

# Generate an Intellij project
./buckw project

See the Usage page for complete details on how to configure OkBuck and Buck.

Buck Http Cache

To speed up your builds even more, you can use an implementation of Buck's HTTP Cache API to take advantage of building once and using the same build artifacts on all machines.

Code Style

We use google-java-format to format Java files. You can either install the IntelliJ plugin or use a pre commit hook to automatically re-format files.

To add a pre commit hook:

• Build google-java-format jar following instructions from github page.
• Copy config/git-hooks/pre-commit.template to .git/hooks/pre-commit
• Make the script executable: chmod +x .git/hooks/pre-commit
• Replace <<PATH_TO_JAR>> in .git/hooks/pre-commit with the location of google-java-format jar.

Contributors

We'd love for you to contribute to our open source projects. Before we can accept your contributions, we kindly ask you to sign our Uber Contributor License Agreement.

• If you find a bug, open an issue or submit a fix via a pull request.
• If you have a feature request, open an issue or submit an implementation via a pull request
• If you want to contribute, submit a pull request.

License

Copyright (c) 2016 Uber Technologies, Inc.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.