Gradle: git init through command line

build.gradle

ant.condition(property: "os", value: "windows") { os(family: "windows") }
ant.condition(property: "os", value: "unix" ) { os(family: "unix") }

task gitInit(type:Exec){
    group = 'Git'
    description = 'git init'
    workingDir '.'
    switch(ant.properties.os){
        case 'windows':
            commandLine 'cmd', '/c', 'git', 'init'
            break
        case 'unix':
            commandLine 'git', 'init'
            break
    }
}