Question

我有一个gradle插件来实现自定义版本控制方案，几乎与gradle文档的第49.8.2.2节中的建议相同。使用gradle的公司项目应用插件，然后按照建议声明依赖关系：compile'group：name：{default}'其中{default}是一个字符串，表示插件应提供实际版本。该插件在配置时将{default}替换为正确的版本，由插件中的逻辑确定。这一切都很有效。

问题在于，当我运行使用mavenDeployer的uploadArchives任务时，生成的pom文件中产生的依赖关系会得到{default}的版本，即指示符字符串而不是实际的依赖关系版本。当我们的maven项目试图将这个pom作为依赖项时，他们无法解决它的依赖性。

浏览网页并自己弄乱它，看来在运行uploadArchives任务时，gradle首先转储所有其他构建的配置。因此，即使项目配置是由插件在配置阶段使用正确的依赖版本构建的，生成pom文件时uploadArchives任务也不会使用这些版本的配置。

如何使用自定义版本插件在配置时解析的依赖项版本来获取uploadArchives任务以生成pom文件？

这是我的build.gradle文件：

buildscript {
    repositories {
        maven {url "somewhere/overtherainbow/releases/"}
    }
    dependencies {
        classpath 'com.overtherainbow:custom-dependency-resolution-plugin:1.0-SNAPSHOT'
    }
}

subprojects {

    apply plugin: 'custom-dependency-resolution'
    apply plugin: 'java'
    apply plugin: 'maven'

    group = "com.overtherainbow"
    version ="1.0-SNAPSHOT"

    repositories {
        maven {url "somewhere/overtherainbow/releases/"}
        mavenCentral()
    }

    dependencies {
        compile 'javax.servlet:servlet-api:default'
        compile 'log4j:log4j:default'
    }

    uploadArchives {
        repositories {
            mavenDeployer {
                uniqueVersion = false
                repository(url: "somewhere/overtherainbow/releases) 
                snapshotRepository(url: "somewhere/overtherainbow/snapshots")
            }
        }
    }
}

project(':bar') {
    dependencies {
        compile project(':common')
        compile project(':foo')
    }
}

project(':foo') {
    dependencies {
        compile project(':common')
    }
}

以下是插件代码：

package com.overtherainbow

import org.gradle.api.Project
import org.gradle.api.Plugin
import org.gradle.api.artifacts.DependencyResolveDetails

class DefaultVersionPlugin implements Plugin<Project> {
    // This is where dependency versions are defined
    def defaultVersionsMap = [
        'javax.servlet:servlet-api' : '2.5',
        'log4j:log4j' : '1.2.16']

    void apply(Project project) {
        project.configurations.all {
            resolutionStrategy.eachDependency {
                DependencyResolveDetails details -> resolveDependencyVersion(project, details)
            }
        }
    }

    def resolveDependencyVersion(Project project, DependencyResolveDetails details) {
        if (details.requested.version == 'default') {
            def version = resolveDefaultVersion(project, details.requested.group, details.requested.name)
            details.useVersion version
        }
    }

    def resolveDefaultVersion(Project project, String group, String name) {
        project.logger.debug("Resolving default dependency for $group:$name")
        println "Resolving default dependency for $group:$name"
        defaultVersionsMap["$group:$name"]
    }
}

运行uploadArchives的输出，注意插件在每个项目的第一个任务（compileJava）期间运行，但不是uploadArchives：

$ gradle uploadArchives
:common:compileJava
Resolving default dependency for javax.servlet:servlet-api
Resolving default dependency for log4j:log4j
:common:compileJava UP-TO-DATE
:common:processResources UP-TO-DATE
:common:classes UP-TO-DATE
:common:jar UP-TO-DATE
:foo:compileJava
Resolving default dependency for javax.servlet:servlet-api
Resolving default dependency for log4j:log4j
:foo:compileJava UP-TO-DATE
:foo:processResources UP-TO-DATE
:foo:classes UP-TO-DATE
:foo:jar UP-TO-DATE
:bar:compileJava
Resolving default dependency for javax.servlet:servlet-api
Resolving default dependency for log4j:log4j
:bar:compileJava UP-TO-DATE
:bar:processResources UP-TO-DATE
:bar:classes UP-TO-DATE
:bar:jar UP-TO-DATE
:bar:uploadArchives
Uploading: com/overtherainbow/bar/1.0-SNAPSHOT/bar-1.0-SNAPSHOT.jar to...
Transferring 19K from remote
Uploaded 19K
:common:uploadArchives
Uploading: com/overtherainbow/common/1.0-SNAPSHOT/common-1.0-SNAPSHOT.jar to...
Transferring 5K from remote
Uploaded 5K
:foo:uploadArchives
Uploading: com/overtherainbow/foo/1.0-SNAPSHOT/foo-1.0-SNAPSHOT.jar to...
Transferring 15K from remote
Uploaded 15K

以下是生成的pom文件的依赖项部分，请注意版本设置为默认值：

<dependencies>
  <dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>servlet-api</artifactId>
    <version>default</version>
    <scope>compile</scope>
  </dependency>
  <dependency>
    <groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>default</version>
    <scope>compile</scope>
  </dependency>
</dependencies>

生成pom文件时，Gradle uploadArchives任务不遵循自定义版本控制方案

0 个答案: