设置Android版本code摇篮任务完成后， [英] Set Android versionCode after Gradle task completes

问题描述

我有更新我的应用程序的版本code，称为任务的 changeVersion code 的。此任务之前，我的Andr​​oid构建任务运行（ assembleRelease 的），但显然它的安卓{} 结束后发生的。这似乎意味着该版本code设置，不能甚至改变时的 changeVersion code 的运行。

I have a task that updates my app's version code, called changeVersionCode. This task runs before my Android build tasks (assembleRelease), but obviously it happens after the android { } closure. This seems to mean that versionCode is set and cannot be changed even when changeVersionCode runs.

下面是一个演示如何我试图解决这个问题简化构建脚本：

Here's a simplified build script that demonstrates how I have tried to approach this problem:

// .version is a file that starts at "1" the first time I call this

def loadVersionCode() {
    // fetch version code from a file, '.version'
    return loadVersionCodeFromFile('.version')
}

def incrementVersionCode() {
    // fetch version code, update it, and save it back to a file
    def newVersion = loadVersionCode() + 1
    saveVersionCodeToFile('.version', newVersion)
}

apply plugin: 'com.android.application'

android {
    // ... snip ...
    defaultConfig {
        // Set the version code to contents of .version (eg. 1)
        versionCode loadVersionCode()
        // ...
    }
}

task incrementVersionCode << {
    println "Old version code: " + android.defaultConfig.versionCode // prints 1

    incrementVersionCode()
    def newVersion = loadVersion() // this now returns 2

    android.defaultConfig.versionCode = loadVersionCode()
    // Also tried:
    // android.defaultConfig.versionCode loadVersionCode()

    println "New version code: " + android.defaultConfig.versionCode // prints 2
    // android.defaultConfig.versionCode is now 2, but APK still has version 1 (until next time I run gradle)
}

然后：

# Build an APK with versionCode 1
$ ./gradlew assembleRelease

# This seems to change versionCode to 2, but still builds an APK with versionCode 1
#
# Prints:
#     Old version code: 1
#     New version code: 2
$ ./gradlew incrementVersionCode assembleRelease

我使用的：

• 摇篮2.5


• Groovy的2.3.10


• 蚂蚁1.9.3


• 的Java 1.8.0_45


• 的Mac OS X 10.10.5


• Android编译工具22.0.1

有什么办法，我可以从一个任务调用Android编译任务前更改我的版本code？

Is there any way I can change my version code from a task before invoking Android build tasks?

推荐答案

如何配置版本code前的任务启动

您可以使用DSL tasks.whenTaskAdded 。您可以阅读href=\"https://docs.gradle.org/current/userguide/build_lifecycle.html\" rel=\"nofollow\">官方文档，章58.6.2的

You can use the DSL tasks.whenTaskAdded. You can read the official doc, chapter 58.6.2. Task creation.

您可以领取任务添加到项目后，立即通知。这可以用来设置一些默认值或执行任务前，添加行为的 在构建文件提供。

You can receive a notification immediately after a task is added to a project. This can be used to set some default values or add behaviour before the task is made available in the build file.

您可以定义一个任务：

task incrementVersionCode << {
    //do something
}

然后定义依赖性：

Then define the dependency :

tasks.whenTaskAdded { task ->
    if (task.name == 'xxxxx') {
        task.dependsOn incrementVersionCode 
    }
}

在你的情况，你可以做somenthing是这样的：

In your case you can do somenthing like this:

tasks.whenTaskAdded { task ->
    if (task.name == 'generateReleaseBuildConfig' || task.name == 'generateDebugBuildConfig') {
        task.dependsOn 'increaseVersionCode'
    }
}

如何配置版本code与函数

在顶层文件，您可以配置一个功能是这样的：

In the top-level file you can configure a function like this:

ext {

     buildVersionCode = {
       //...
    }
}

在你的模块/的build.gradle ，你可以做somehing是这样的：

In your module/build.gradle you can do somehing like this:

defaultConfig {
    versionCode buildVersionCode()
    //....
}

否则，你可以在做你的的build.gradle 是这样的：

defaultConfig {
    //...
    versionCode getMyNumber()
}


def getMyNumber() {
    return //.... ;
} 

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