依赖关系不会被复制到罐子（在摇篮） [英] Dependencies not copied into jar (in Gradle)

问题描述

TL; DR我期待一个模块的依赖关系必须建立到其的.jar，但他们似乎并没有成为

我用摇篮建设项目。我有两个子项目，应用（一个Android模块）和测试（一个Java模块），通过的IntelliJ所创建。

I'm using Gradle to build a project. I have two subprojects, app (an Android module) and tests (a Java module), as created by IntelliJ.

由于我想使用应用定义的类中的测试的内容，我已经添加了适当的依赖。通过这个答案，我有以下设置：

Since I want to use the classes defined in app in the contents of tests, I've added the appropriate dependency. Inspired by this answer, I've got the following setup:

应用程序/ build.gradle：

app/build.gradle:

...
task jarTask(type: Jar) {
    baseName ="${project.archivesBaseName}"
    from android.sourceSets.main.java
}

configurations {
    jarConfiguration
}

artifacts {
    jarConfiguration jarTask
}

测试/ build.gradle

tests/build.gradle

...
dependencies {
    ...
    testCompile project(path: ':app', configuration: 'jarConfiguration')
}

不过，这些类的一个应用程序进口 org.json.JSONObject 。由于这是由Android SDK中提供的应用可以找到很好 - 但是当我尝试运行测试，我得到（在：测试：compileTestJava ）包org.json不存在。但是，如果我更新的测试/ build.gradle为

However, one of the classes in app imports org.json.JSONObject. Since this is provided by the Android SDK, app can find it fine - but when I try to run tests, I get (in :tests:compileTestJava) "package org.json does not exist". However, if I update tests/build.gradle to be

...
dependencies {
    ...
    testCompile project(path: ':app', configuration: 'jarConfiguration')
    testCompile 'org.json:json:20090211'
}

（见这里），然后测试正常运行。

(See here) then the tests run correctly.

这不是我所期待的 - 如果一个的.jar不打包的相关性，则取决于该的.jar任何项目还必须明确依赖于传递依赖 - 这是不是造成依赖的定义迅速增加？

This wasn't what I expected - if a .jar doesn't package up its dependencies, then any project which depends on that .jar must also explicitly depend on the transitive dependencies - wouldn't this cause dependency definitions to rapidly increase?

推荐答案

我碰到一个fatJar的概念，在这里和此处，这似乎是等同于一个罐依赖 - 但改变我的应用程序/ build.gradle读

I came across the concept of a "fatJar" here and here, which seems to be synonymous with a "jar with dependencies" - but changing my app/build.gradle to read

...
task jarTask(type: Jar) {
    baseName ="test-${project.archivesBaseName}"
    from android.sourceSets.main.java
}

task fatJar(type: Jar) {
    baseName = project.name + "-all"
    from {configurations.compile.collect {it.isDirectory() ? it : zipTree(it)}}
    with jarTask
}

configurations {
    jarConfiguration
}

artifacts {
    jarConfiguration fatJar
}

仍然给出了错误包org.json不存在。这似乎是因为 org.json 没有显式调用了在应用程序/ build.gradle文件的依赖。用下面的程序/ build.gradle，我的项目建成并运行测试，预计：

still gives an error that package org.json does not exist. This appears to be because org.json is not explicitly called out as a dependency in the app/build.gradle file. With the following app/build.gradle, my project built and ran tests as expected:

...
dependencies {
    ...
    compile 'org.json:json:20090211'
}

task jarTask(type: Jar) {
    baseName ="${project.archivesBaseName}"
    from android.sourceSets.main.java
}

task fatJar(type: Jar) {
    baseName = project.name + "-all"
    from {configurations.compile.collect {it.isDirectory() ? it : zipTree(it)}}
    with jarTask
}

configurations {
    jarConfiguration
}

artifacts {
    jarConfiguration fatJar
}

（注意，如果你只是想fatJar任务，你可以简单地设置从文件（{{configurations.compile.collect it.isDirector（）是：zipTree（它）}}，机器人.sourceSets.main.java）

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