問題描述

我正在嘗試使用自定義版本的 gradle-release 插件在 Android 中模擬 Maven 發(fā)布插件:https://github.com/townsfolk/gradle-release

I'm trying to emulate Maven release plugin in Android by using a customized version of gradle-release plugin: https://github.com/townsfolk/gradle-release

有趣的步驟是:

• 檢查未提交的更改
• 步驟版本代碼并刪除 -SNAPSHOT版本名稱的后綴
• 構建
• 步驟版本名稱并添加-SNAPSHOT下一個開發(fā)版本的后綴

但是生成的 APK 始終具有以前的版本(即 1.0.0-SNAPSHOT 而不是 1.0.0).

However the generated APK always has the previous versions (i.e. 1.0.0-SNAPSHOT instead of 1.0.0).

版本號在 gradle.properties 中存儲并正確更新，因此我假設我需要更新數(shù)據(jù)模型中的版本以及更改才能生效.

Version numbers are stored and correctly updated in gradle.properties, so I'm assuming that I need to update the versions in the data model as well for the changes to take effect.

我的安卓插件配置:

defaultConfig {
    versionCode versionCode as int  // taken from gradle.properties
    versionName versionName // taken from gradle.properties
    minSdkVersion 10
    targetSdkVersion 19
}

我嘗試過的事情:

preBuild << {
    android.applicationVariants.each { variant ->
        variant.versionName = versionName
    }
}

但變體中沒有 versionName.

But there's no versionName in a variant.

preBuild << {
    android.buildTypes.each { type ->
        type.versionName = versionName
    }
}

但類型中沒有 versionName.

But there's no versionName in a type.

preBuild << {
    android.productFlavors.each { flavor ->
        flavor.versionName = versionName
    }
}

但我的應用中沒有任何風格(僅限普通調(diào)試和發(fā)布構建類型).

But there are no flavors in my app (plain debug and release build types only).

我的替代方法是在調(diào)用 Gradle 之前編寫一個 bash/bat 腳本來步進版本，這幾乎違背了使用 Groovy 改進構建自定義的目的.

My alternative is to write a bash/bat script to step the versions before invoking Gradle, which pretty much defeats the purpose of using Groovy to improve build customization.

如何在Android Gradle插件的執(zhí)行階段動態(tài)更新版本?

How can I update versions dynamically in the Android Gradle plugin in the execution phase?

推薦答案

這就是 buildTypes 的用途.你所描述的是一個 release 構建，IMO.

That's what buildTypes are for. What you're describing is a release build, IMO.

這是一個例子:當執(zhí)行 assembleDebug 時，它會給你一個快照構建，而執(zhí)行 assembleRelease 會給你一個干凈的構建，沒有任何后綴和遞增的版本號.下一個調(diào)試版本也將使用遞增的數(shù)字.

Here's an example: when executing assembleDebug it will give you a snapshot build, and executing assembleRelease will give you a clean build without any suffix and incremented version number. The next debug build will also use the incremented number.

以下是在文件夾中創(chuàng)建文件時功能齊全的構建.它也應該適用于口味，但這只是一個副產(chǎn)品:).Gradle 2.2.1，Android 插件 1.1.3

The following is a fully functional build when the files are created in a folder. It should also work with flavors, but that's just a side product :). Gradle 2.2.1, Android plugin 1.1.3

apply plugin: 'com.android.application'
apply from: 'auto-version.gradle'

buildscript {
    repositories { jcenter() }
    dependencies { classpath 'com.android.tools.build:gradle:1.1.3' }
}

android {
    buildToolsVersion = "21.1.2"
    compileSdkVersion = "android-21"

    buildTypes {
        debug {
            versionNameSuffix "-SNAPSHOT"
        }
    }
}

println "config code: ${calculateVersionCode()}, name: ${calculateVersionName()}"

src/main/AndroidManifest.xml

<manifest package="com.example" />

自動版本.gradle

ext {
    versionFile = new File(project.rootDir, 'version.properties')
    calculateVersionName = {
        def version = readVersion()
        return "${version['major']}.${version['minor']}.${version['build']}"
    }
    calculateVersionCode = {
        def version = readVersion()
        def major = version['major'] as int // 1..∞
        def minor = version['minor'] as int // 0..99
        def build = version['build'] as int // 0..999
        return (major * 100 + minor) * 1000 + build
    }
}


Properties readVersion() {
    def version = new Properties()
    def stream
    try {
        stream = new FileInputStream(versionFile)
        version.load(stream)
    } catch (FileNotFoundException ignore) {
    } finally {
        if (stream != null) stream.close()
    }
    // safety defaults in case file is missing
    if(!version['major']) version['major'] = "1"
    if(!version['minor']) version['minor'] = "0"
    if(!version['build']) version['build'] = "0"
    return version
}

void incrementVersionNumber() {
    def version = readVersion()

    // careful with the types, culprits: "9"++ = ":", "9" + 1 = "91"
    def build = version['build'] as int
    build++
    version['build'] = build.toString()

    def stream = new FileOutputStream(versionFile)
    try {
        version.store(stream, null)
    } finally {
        stream.close()
    }
}

task incrementVersion {
    description "Increments build counter in ${versionFile}"
    doFirst {
        incrementVersionNumber()
    }
}

if (plugins.hasPlugin('android') || plugins.hasPlugin('android-library')) {
    android {
        defaultConfig {
            versionName = calculateVersionName()
            versionCode = calculateVersionCode()
        }

        afterEvaluate {
            def autoIncrementVariant = { variant ->
                if (variant.buildType.name == buildTypes.release.name) { // don't increment on debug builds
                    variant.preBuild.dependsOn incrementVersion
                    incrementVersion.doLast {
                        variant.mergedFlavor.versionName = calculateVersionName()
                        variant.mergedFlavor.versionCode = calculateVersionCode()
                    }
                }
            }
            if (plugins.hasPlugin('android')) {
                applicationVariants.all { variant -> autoIncrementVariant(variant) }
            }
            if (plugins.hasPlugin('android-library')) {
                libraryVariants.all { variant -> autoIncrementVariant(variant) }
            }
        }
    }
}

執(zhí)行gradle assembleDebug正常構建，gradle assembleRelease遞增構建，gradle incrementVersion只遞增.注意:gradle assemble要小心，因為assembleDebug和assembleRelease的順序會產(chǎn)生不同的結果.

Execute gradle assembleDebug to build normally, gradle assembleRelease to increment and build, and gradle incrementVersion to just increment. Note: be careful with gradle assemble because the order of assembleDebug and assembleRelease will yield different results.

檢查 build 目錄中生成的文件，看看這些值是否符合您的喜好.

Check the generated files in the build directory to see if the values are to your liking.

您可能有多種風格，在這種情況下版本會多次遞增，因為多個變體與發(fā)布構建類型匹配.最初的問題是沒有味道.如果您想在版本號遞增時有更多控制權，只需刪除 afterEvaluate 塊并隨時調(diào)用 incrementVersion 任務:

It is possible you have multiple flavors in which case the version is incremented multiple times because multiple variants match the release build type. The original quesion was for no flavors. If you want to have more control when the version number is incremented just remove the afterEvaluate block and call the incrementVersion task whenever you want:

gradle incrementVersion assembleFreeRelease assemblePaidRelease

(上述手動執(zhí)行是一個未經(jīng)驗證的想法.)

(The above manual execution is an untested idea.)

此答案未涵蓋檢查未提交的更改"，這是另一個游戲.如果我理解正確，您可以連接到 tasks.preBuild.doFirst {/*fail here if uncommited changes*