gradle
Android 애플리케이션 용 Gradle 스크립트를 사용하여 자동 증가 버전 번호

빌드시 자동 증가 메서드 호출 방법

gradle.taskGraph.whenReady {taskGraph ->
    if (taskGraph.hasTask(assembleDebug)) {  /* when run debug task */
        autoIncrementBuildNumber()
    } else if (taskGraph.hasTask(assembleRelease)) { /* when run release task */
        autoIncrementBuildNumber()
    }
}

자동 증가 방법 정의

 /*Wrapping inside a method avoids auto incrementing on every gradle task run. Now it runs only when we build apk*/
ext.autoIncrementBuildNumber = {

    if (versionPropsFile.canRead()) {
        def Properties versionProps = new Properties()
        versionProps.load(new FileInputStream(versionPropsFile))
        versionBuild = versionProps['VERSION_BUILD'].toInteger() + 1
        versionProps['VERSION_BUILD'] = versionBuild.toString()
        versionProps.store(versionPropsFile.newWriter(), null)
    } else {
        throw new GradleException("Could not read version.properties!")
    }
}

속성 파일에서 버전 번호 읽기 및 할당

def versionPropsFile = file ( 'version.properties') def versionBuild

/*Setting default value for versionBuild which is the last incremented value stored in the file */
if (versionPropsFile.canRead()) {
    def Properties versionProps = new Properties()
    versionProps.load(new FileInputStream(versionPropsFile))
    versionBuild = versionProps['VERSION_BUILD'].toInteger()
} else {
    throw new GradleException("Could not read version.properties!")
}