Android Build Engineering @ Airbnb

Video at https://www.youtube.com/watch?v=v8Q7eII7ils&feature=youtu.be

Transcript

1. Android Build
   Engineering @ Airbnb
   FELIPE LIMA / @FELIPECSL / NOV 10, 2016 / CODEPATH
   

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2. Team scaling
   

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3. • Tripled in 1 year
   • Migrated to a monorepo
   • More code, slower builds
   Team Scaling
   

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4. React Native
   

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5. React Native
   • Development Environment
   • Seamless build integration
   • Production crashes
   • Learning curve
   

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6. Build Engineering
   

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7. Build Engineering
   • Debug builds with 200K+
   methods
   • Almost 10 min. clean builds
   • Poor parallelization
   • Multidex issues
   

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8. Buck
   

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9. • Mature: Created by and actively maintained by Facebook.
   • Speed: Focused on performance. Highly concurrent.
   • Caching: Aggressive caching, supports remote cache server.
   • Simple: Rely on small and self contained modules.
   Enter Buck
   A new hope for Android
   

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10. Challenges
    • Caching: Hard to debug. Hidden changes invalidate cache keys.
    • Modularity: Obscure issues with annotation processors, harder to figure out code dependencies.
    • Configuration: Verbose, hard to parse and understand.
    • Dependency resolution: No automatic dependency download. Needs to be available locally.
    • Adoption: Requires many changes to the codebase.
    

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11. Adoption
    • OkBuck: A lifesaver. Uses Gradle's project model to generate BUCK configuration files.
    • Traction: Recently being adopted by many companies like Airbnb, Uber and Lyft.
    • Supported Features: Most popular libraries supported (Retrolambda, ButterKnife, Sqldelight, etc).
    

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12. Questions?
    

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13. Thanks!
    

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