Gradle multi projext example.

build.gradle

/**
 * Gradle マルチプロジェクトの例
 *
 *  build/build.gradle
 *  build/setting.gradle
 * 
 *  Application/
 *  Common/
 *  Project1/
 *  Project2/
 */

// build/setting.gradle
// 
// includeFlat 'Application'
//
// includeFlat 'Common'
// includeFlat 'Project1'
// includeFlat 'Project2'
//
// rootProject.name = 'build'

// build/build.gradle
/**
 * プロジェクト横断設定
 */
subprojects {
    [compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
    sourceCompatibility = 1.8
    targetCompatibility = 1.8
    // sourceSets {
    //     main {
    //         java {
    //             srcDir 'src/main/java'
    //         }
    //     }
    // }

    dependencies {
        compile fileTree(dir: '../lib', include: ['*.jar'])
        // if(System.properties['os.name'].toLowerCase().contains('windows')) {
        // } else {
        // }
    }
}

project(':Common') {
    // jar {
    //     metaInf {
    //         from('src/META-INF')
    //     }
    // }
}

project(':Project1') {
    dependencies {
        compile project(':Common')
    }
}

project(':Project2') {
    dependencies {
        compile project(':Common')
    }
}

project(':Application') {
    apply plugin: 'war'

    dependencies {
        compile fileTree(dir: '../lib', include: ['*.jar'])
        compile project(':Common')
        compile project(':Project1')
        compile project(':Project2')
    }

    war {
        // from 'WebContent'
    }
}