如何在离线环境中运行Gradle-kotlindsl插件?

我试着复制你的设置。 我用生成了一个新的Gradle项目 gradle init ,使用Gradle Kotlin DSL选择一个用Kotlin编写的简单库。

我所处的环境(docker容器)没有任何互联网连接(容器以 --network none ).

我正在使用最新版本的Gradle( 7.3.1 )我无法复制你的确切问题。

我在开头看到这样的东西:

> Evaluating settings > Generating gradle-api-7.3.1.jar
> Evaluating settings > Generating gradle-kotlin-dsl-extensions-7.3.1.jar
...

所以我怀疑Gradle设法生成了您有问题的kotlin-dsl jar。

但我的构建在以下方面失败了:

FAILURE: Build failed with an exception.

* Where:
Build file '/home/work/lib/build.gradle.kts' line: 9

* What went wrong:
Plugin [id: 'org.jetbrains.kotlin.jvm', version: '1.5.31'] was not found in any of the following sources:

- Gradle Core Plugins (plugin is not in 'org.gradle' namespace)
- Plugin Repositories (could not resolve plugin artifact 'org.jetbrains.kotlin.jvm:org.jetbrains.kotlin.jvm.gradle.plugin:1.5.31')
  Searched in the following repositories:
    Gradle Central Plugin Repository

这与你的相似,对我来说很有意义。Gradle无法获得插件

所以按照你的方法,我准备了 pom file 下载所有必需的依赖项。

然后我还有一个替代的maven设置文件( maven-settings.xml )将本地maven存储库移动到其他位置:

<settings>
    <localRepository>/home/work/work/repo/m2</localRepository>
</settings>

然后我运行maven将所有依赖项下载到本地文件夹:

mvn dependency:go-offline -s maven-settings.xml

然后我需要向Gradle指示它应该从本地回购中消费(请参阅 Gradle Offline Build Using Maven Repository ):

在 settings.gradle.kts 文件

// Use the local maven repository:
pluginManagement {
  repositories {
      maven {
        url = uri("file:///home/work/repo/m2")
      }
  }
}

在 lib/build.gradle.kts (我的Gradle项目名为 lib ,生成时使用 渐变初始化 ),编辑 repositories 集团

repositories {
    // Use the local maven repository:
    maven {
        url = uri("file:///home/work/repo/m2")
    }
    // Use Maven Central for resolving dependencies.
    mavenCentral()
}

理论上我们甚至可以移除 mavenCentral() 行,因为在Gradle与 --offline 标志或没有任何互联网连接,它将不会被使用。

然后构建就像一个魅力(在我的容器内,没有互联网接入):

root@574b7fd57f6d:/home/work# ./gradlew build

Welcome to Gradle 7.3.1!

Here are the highlights of this release:
 - Easily declare new test suites in Java projects
 - Support for Java 17
 - Support for Scala 3

For more details see https://docs.gradle.org/7.3.1/release-notes.html

Starting a Gradle Daemon (subsequent builds will be faster)

BUILD SUCCESSFUL in 43s
5 actionable tasks: 5 executed

笔记

在测试过程中,我也出现了以下错误:

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':lib:compileTestKotlin'.
> Error while evaluating property 'filteredArgumentsMap' of task ':lib:compileTestKotlin'
   > Could not resolve all files for configuration ':lib:testCompileClasspath'.
      > Could not resolve org.jetbrains.kotlin:kotlin-test:1.5.31.
        Required by:
            project :lib
         > Unable to find a variant of org.jetbrains.kotlin:kotlin-test:1.5.31 providing the requested capability org.jetbrains.kotlin:kotlin-test-framework-junit:
              - Variant compile provides org.jetbrains.kotlin:kotlin-test:1.5.31
              - Variant runtime provides org.jetbrains.kotlin:kotlin-test:1.5.31
              - Variant platform-compile provides org.jetbrains.kotlin:kotlin-test-derived-platform:1.5.31
              - Variant platform-runtime provides org.jetbrains.kotlin:kotlin-test-derived-platform:1.5.31
              - Variant enforced-platform-compile provides org.jetbrains.kotlin:kotlin-test-derived-enforced-platform:1.5.31
              - Variant enforced-platform-runtime provides org.jetbrains.kotlin:kotlin-test-derived-enforced-platform:1.5.31


* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

这是因为依赖 org.jetbrains.kotlin:kotlin-test 您还需要 kotlin-test-1.5.31.module 文件看见 Gradle Module Metadata 文档页面。

这就是为什么我也有这种依赖性:

<dependency>
    <groupId>org.jetbrains.kotlin</groupId>
    <artifactId>kotlin-test</artifactId>
    <version>1.5.31</version>
    <type>module</type><!-- force maven to download the gradle metadata for this dependency -->
</dependency>

在POM文件中,这有助于提前收集所有依赖项。