如何将 ResolutionStrategies 与 Gradle 混合使用

Question

假设我的 gradle 构建脚本中包含以下内容：

configurations.all {
  resolutionStrategy {

    failOnVersionConflict()

    force 'com.google.guava:guava:18.0'
    }
}

如果找到多个版本的 jar，这将失败，除了 guava，它将强制使用版本 18.0.

现在假设我想为所有外部 jar 设置 failOnVersionConflict()，并被迫使用 force 子句（所以我知道我在做什么），但我想使用默认的 resolutionStrategy （最新版本）针对某些特定组，例如 com.mycompany。

这样的事情可能吗？

我正在查看此文档页面：

https://gradle.org/docs/current/dsl/org.gradle.api.artifacts.ResolutionStrategy.html

Answer 1

我找到了自己的答案...但它涉及到一些 "hacking"...但是，毕竟这正是 gradle 提供的...

def dependencyErrors = 0

configurations.all {
  resolutionStrategy {

    def thirdPartyPackages = [:]
    def forced = [ 
        'com.google.guava:guava' : '18.0'
        //Here all forced dependencies...
    ]


     eachDependency { DependencyResolveDetails details ->


          if (!details.requested.group.startsWith('com.mycompany')) {

                def key = details.requested.group + ":" + details.requested.name
                if(!thirdPartyPackages.containsKey(key)) {
                    if(forced.containsKey(key)) {
                        details.useVersion forced.get(key)
                    }                   
                    else {
                        thirdPartyPackages.put(key, details.requested.version);
                    }
                }
                else {
                    def existing =  thirdPartyPackages.get(key);
                    if(existing != details.requested.version) {
                        logger.error "Conflicting versions for [$key]"
                        logger.error "    [$existing]"
                        logger.error "    [$details.requested.version]"
                        dependencyErrors++
                    }
                }
          }
      }

  }
}

myTask.doFirst {
  //here it might also be doLast, or whatever you need. I just put it before a war task, but it might depend on each need. 
  if(dependencyErrors > 0) {
    ant.fail 'There are ' + dependencyErrors + ' conflicting jar versions in the build.'
  }
}