java – Gradle – 手动下载依赖项,锁定版本和更新依赖项

问题.

Gradle依赖管理如下：

>没有简单的方法来检查依赖项更新的可用性(仅使用某些第三方插件,如ben-manes/gradle-versions-plugin)并下载更新替换旧版本;
>依赖项工件从远程存储库下载,然后存储在gradle缓存中并在后续构建中重用;但是,成功编译项目不能依赖于连接到Internet,远程存储库的可用性以及这些存储库中特定版本的依赖项的存在.

目标.

>在VCS中下载并存储所有依赖项工件;
>手动检查这些依赖项的更新并下载它们.

解决方法:

我的解决方案适用于使用java或android插件的Gradle配置.

java插件定义了compile和testCompile配置.
compile用于编译项目生产源所需的依赖项. testCompile用于编译项目测试源所需的依赖项.

让我们在build.gradle中定义我们自己的配置：

configurations {
    download
    testDownload
}

接下来让我们创建目录：

> libs / compile / downloaded是存储下载依赖项的地方;
> libs / testCompile / downloaded是存储testDownload依赖项的地方.

接下来我们定义几个任务.

从下载配置中删除依赖项：

task cleanDownloadedDependencies(type: Delete) {
    delete filetree('libs/compile/downloaded')
}

从testDownload配置中删除依赖项：

task cleanDownloadedTestDependencies(type: Delete) {
    delete filetree('libs/testCompile/downloaded')
}

从下载配置下载依赖项：

task downloadDependencies(type: copy) {
    from configurations.download
    into "libs/compile/downloaded/"
}

从testDownload配置下载依赖项：

task downloadTestDependencies(type: copy) {
    from configurations.testDownload
    into "libs/testCompile/downloaded/"
}

执行以上所有任务以更新依赖项：

task updateDependencies {
    dependsOn cleanDownloadedDependencies, cleanDownloadedTestDependencies, downloadDependencies, downloadTestDependencies
}

接下来我们定义依赖项：

dependencies {
    download(
            'com.google.code.gson:gson:+',
            'joda-time:joda-time:+',
    )
    testDownload(
            'junit:junit:+'
    )

然后我们告诉compile和testCompile配置应该在哪里使用用于编译的依赖项.

    compile filetree(dir: 'libs/compile', include: '**/*.jar')
    testCompile filetree(dir: 'libs/testCompile', include: '**/*.jar')
}

现在您可以下载或更新已下载的依赖项：

./gradlew updateDependencies

如果您使用的是android插件,那么您还可以为Android设备上的编译和运行测试所需的依赖项添加androidTestDownload配置.此外,一些依赖项可以作为aar工件提供.

这是使用android插件进行Gradle配置的示例：

...

repositories {

    ...

    flatDir {
        dirs 'libs/compile', 'libs/compile/downloaded',
                'libs/testCompile', 'libs/testCompileDownloaded',
                'libs/androidTestCompile', 'libs/androidTestCompile/downloaded'
    }
}

configurations {
    download
    testDownload
    androidTestDownload
}

android {
    ...
}

dependencies {
    download(
            'com.android.support:support-v4:+',
            'com.android.support:appcompat-v7:+',
            'com.google.android.gms:play-services-location:+',
            'com.facebook.android:facebook-android-sdk:+',
            'com.vk:androidsdk:+',
            'com.crashlytics.sdk.android:crashlytics:+',
            'oauth.signpost:signpost-core:+',
            'oauth.signpost:signpost-commonshttp4:+',
            'org.twitter4j:twitter4j-core:+',
            'commons-io:commons-io:+',
            'com.google.code.gson:gson:+',
            'org.jdeferred:jdeferred-android-aar:+'
    )
    compile filetree(dir: 'libs/compile', include: '**/*.jar')
    testCompile filetree(dir: 'libs/testCompile', include: '**/*.jar')
    androidTestCompile filetree(dir: 'libs/androidTestCompile', include: '**/*.jar')
}


task cleanDownloadedDependencies(type: Delete) {
    delete filetree('libs/compile/downloaded')
}

task cleanDownloadedTestDependencies(type: Delete) {
    delete filetree('libs/testCompile/downloaded')
}

task cleanDownloadedAndroidTestDependencies(type: Delete) {
    delete filetree('libs/androidTestCompile/downloaded')
}

task downloadDependencies(type: copy) {
    from configurations.download
    into 'libs/compile/downloaded/'
}

task downloadTestDependencies(type: copy) {
    from configurations.testDownload
    into 'libs/testCompile/downloaded/'
}

task downloadAndroidTestDependencies(type: copy) {
    from configurations.androidTestDownload
    into 'libs/androidTestCompile/downloaded/'
}

task updateDependencies {
    dependsOn cleanDownloadedDependencies, cleanDownloadedTestDependencies, cleanDownloadedAndroidTestDependencies, downloadDependencies, downloadTestDependencies, downloadAndroidTestDependencies
}

filetree(dir: 'libs/compile', include: '**/*.aar')
        .each { File file ->
    dependencies.add("compile",
            [name: file.name.lastIndexOf('.').with { it != -1 ? file.name[0..<it] : file.name }, ext: 'aar'])
}

filetree(dir: 'libs/testCompile', include: '**/*.aar')
        .each { File file ->
    dependencies.add("testCompile",
            [name: file.name.lastIndexOf('.').with { it != -1 ? file.name[0..<it] : file.name }, ext: 'aar'])
}

filetree(dir: 'libs/androidTestCompile', include: '**/*.aar')
        .each { File file ->
    dependencies.add("androidTestCompile",
            [name: file.name.lastIndexOf('.').with { it != -1 ? file.name[0..<it] : file.name }, ext: 'aar'])
}