Gradle：在src中构建具有多个包的项目

Question

我是Gradle的新手，我有一个项目，其结构类似于：

 src
   ├── packageA
   │   └── subPackageA
   │       └── projectA
   │           ├── constants
   │           │   └── *.java 
   │           ├── database
   │           │   └── *.java 
   │           ├── remotes
   │           │   └── *.java 
   │           ├── rest
   │           │   └── *.java 
   │           └── service
   │               └── *.java 
   ├── META-INF
   │   └── *.xml 
   └── packageB
       └── *.java 

这是我到目前为止所学的内容所生成的构建文件：

apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'
apply plugin: 'war'

sourceCompatibility = 1.8
version = '1.0'

dependencies {
    compile "org.hibernate:hibernate-core:5.3.7.Final"
    compile "com.fasterxml.jackson.core:jackson-annotations:2.9.7"
    compile "com.fasterxml.jackson.core:jackson-databind:2.9.7"
    compile "com.fasterxml.jackson.core:jackson-core:2.9.7"
    compile "mysql:mysql-connector-java:5.1.47"
    compile "javax.ejb:javax.ejb-api:3.2"
    compile "javax.ws.rs:javax.ws.rs-api:2.0"
}

repositories {
    mavenCentral()
}

 //something similar I found here in stackoverflow
 sourceSets.main.java {
   srcDirs = ["$buildDir/mergedSources"]
}

task mergeSources() {
   from "src/com/global/"
   from "src/model/"
   duplicatesStrategy = DuplicatesStrategy.EXCLUDE // (see https://docs.gradle.org/current/javadoc/org/gradle/api/file/DuplicatesStrategy.html#EXCLUDE)
   into "$buildDir/mergedSources"
}

compileJava.dependsOn mergeSources

如何将多个软件包导入或添加到需要构建的源中？像来自packageA和packageB的.java类文件（不包括META-INF文件）一样吗？