Gradle Build System in Apache Beam

Overview

Apache Beam is a mono-repo using Gradle as its build system. The entire project (Java, Python, Go, website) is managed as a single Gradle project.

Key Files

• build.gradle.kts - Root build configuration
• settings.gradle.kts - Project structure and module definitions
• gradle.properties - Global properties and versions
• buildSrc/ - Custom Gradle plugins including BeamModulePlugin

BeamModulePlugin

Located at buildSrc/src/main/groovy/org/apache/beam/gradle/BeamModulePlugin.groovy

Purpose

• Manages Java dependencies centrally
• Configures project types (Java, Python, Go, Proto, Docker, etc.)
• Defines common custom tasks