build.gradle でsrc系のディレクトリと.gitignoreを作成するタスク

build.gradle

version = '0.1-SNAPSHOT'
group = 'foo.bar'

task init  << {
    def ignores = ["/.*","/build","/lib","/bin","/repo"
                  ,"/gradle*","!gradle","!gradle.bat"
                  ,"target","/out","/logs","/log","/bin"
                  ,"*.iml","*.ipr","*.iws",".idea"
                  ,".DS_Store"
                  ]
    def ignoreFile = file(".gitignore")
    if(ignoreFile.canRead()) {
        ignores = ignores - ignoreFile.readLines()
    }
    ignores.each {ignoreFile.append("$it\n") }
    file('logs').mkdirs()

}

subprojects {
    apply plugin: 'java'
    apply plugin: 'scala'
    apply plugin: 'idea'

    group = parent.group
    versionnn = parent.version

    // プロジェクトディレクトリの作成
    task createBuilds(dependsOn: init) << {
        projectDir.mkdirs()
        def buildFile = file("$projectDir.absolutePath/build.gradle")
        if(buildFile.canRead() == false) {
            buildFile.createNewFile()
        }
    }

    // srcディレクトリの作成
    task createDirs(dependsOn: createBuilds) << {
        if(childProjects.size() == 0) {
            sourceSets*.allSource.srcDirs.each { for(dir in it) { dir.mkdirs() } }
        }
    }
}

settings.gradle
include 'prj1', 'prj2' , 'libs:p1'