问题描述

我正在使用 gradle 构建一个 Android 应用.到目前为止，我使用 Manifest 文件来增加 versionCode，但我想从外部文件中读取 versionCode，并根据它是发布风格还是调试风格来增加 versionCode.我尝试了额外的属性，但你无法保存它们，这意味着下次我构建它时，我会得到相同的 versionCode.任何帮助将不胜感激！

I'm building an Android app with gradle. Until now I used the Manifest file to increase the versionCode, but I would like to read the versionCode from an external file and depending if it is the release flavor or the debug flavor increase the versionCode. I tried the extra properties, but you can't save them, which means that next time I build it I'm getting the same versionCode. Any help would be very much appreciated!

project.ext{
    devVersionCode = 13
    releaseVersionCode = 1
}

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.6.+'
    }
}

apply plugin: 'android'

repositories {
    mavenCentral()
}

dependencies {
    compile project(':Cropper')
    compile "com.android.support:appcompat-v7:18.0.+"
    compile "com.android.support:support-v4:18.0.+"
    compile fileTree(dir: 'libs', include: '*.jar')
}

def getReleaseVersionCode() {
    def version = project.releaseVersionCode + 1
    project.releaseVersionCode = version
    println sprintf("Returning version %d", version)
    return version
}

def getDevVersionCode() {
    def version = project.devVersionCode + 1
    project.devVersionCode = version
    println sprintf("Returning version %d", version)
    return version
}


def getLastVersioName(versionCode) {
    return "0.0." + versionCode
}

android {
    compileSdkVersion 19
    buildToolsVersion "19.0.0"

    defaultConfig {
        minSdkVersion 9
        targetSdkVersion 19
    }

    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            aidl.srcDirs = ['src']
            renderscript.srcDirs = ['src']
            res.srcDirs = ['res']
            assets.srcDirs = ['assets']
        }
    }

    buildTypes {
        release {
            runProguard true
            proguardFile getDefaultProguardFile('proguard-android-optimize.txt')
            proguardFile 'proguard.cfg'
            debuggable false
            signingConfig null
            zipAlign false
        }
        debug {
            versionNameSuffix "-DEBUG"
        }
    }
    productFlavors {
        dev {
            packageName = 'com.swisscom.docsafe.debug'
            versionCode getDevVersionCode()
            versionName getLastVersioName(project.devVersionCode)
        }
        prod {
            packageName = 'com.swisscom.docsafe'
            versionCode getReleaseVersionCode()
            versionName getLastVersioName(project.releaseVersionCode)
        }
    }
}

task wrapper(type: Wrapper) {
    gradleVersion = '1.8'
}

推荐答案

我想从外部文件中读取版本代码

I would like to read the versionCode from an external file

我确信有许多可能的解决方案；这是一个:

I am sure that there are any number of possible solutions; here is one:

android {
    compileSdkVersion 18
    buildToolsVersion "18.1.0"

    def versionPropsFile = file('version.properties')

    if (versionPropsFile.canRead()) {
        def Properties versionProps = new Properties()

        versionProps.load(new FileInputStream(versionPropsFile))

        def code = versionProps['VERSION_CODE'].toInteger() + 1

        versionProps['VERSION_CODE']=code.toString()
        versionProps.store(versionPropsFile.newWriter(), null)

        defaultConfig {
            versionCode code
            versionName "1.1"
            minSdkVersion 14
            targetSdkVersion 18
        }
    }
    else {
        throw new GradleException("Could not read version.properties!")
    }

    // rest of android block goes here
}

此代码需要一个现有的 version.properties 文件，您将在第一次构建之前手动创建该文件以具有 VERSION_CODE=8.

This code expects an existing version.properties file, which you would create by hand before the first build to have VERSION_CODE=8.

此代码只是在每次构建时增加版本代码 - 您需要扩展该技术以处理每个风味的版本代码.

This code simply bumps the version code on each build -- you would need to extend the technique to handle your per-flavor version code.

您可以看到 版本控制示例项目代码.

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