如何阻止向Bintray额外上传app-unspecified.aar文件？

我尝试创建Android库并发布至Bintray仓库，但执行bintrayUpload Gradle任务时，除了原始构件，还会额外上传名为app-unspecified.aar的文件。以下是我的publish.gradle配置代码及任务执行输出日志，请问如何阻止该额外文件的上传？

publish.gradle配置代码 #

apply plugin: 'maven-publish'
apply plugin: 'com.jfrog.bintray'
publishing {
    publications {
        library(MavenPublication) {
            groupId publishGroupId
            artifactId publishArtifactId
            version android.defaultConfig.versionName
            pom {
                name = publishArtifactId
                description = libraryDescription
                withXml {
                    def dependenciesNode = asNode().appendNode('dependencies')
                    configurations.implementation.allDependencies.each {
                        if (it.name != 'unspecified') {
                            def dependencyNode = dependenciesNode.appendNode('dependency')
                            dependencyNode.appendNode('groupId', it.group)
                            dependencyNode.appendNode('artifactId', it.name)
                            dependencyNode.appendNode('version', it.version)
                        }
                    }
                }
            }
        }
    }
}
def _user = System.getenv("BINTRAY_USER")
def _key = System.getenv("BINTRAY_API_KEY")
if(project.rootProject.file('local.properties').exists() && (_user == null || _user.isEmpty())){
    Properties properties = new Properties()
    properties.load(project.rootProject.file('local.properties').newDataInputStream())
    _user = properties.getProperty("bintray.user")
    _key = properties.getProperty("bintray.apikey");
}
bintray {
    user = _user
    key = _key
    override = true
    publications = ['library']
    configurations = ['archives']
    pkg {
        repo = bitrayRepo
        name = bintrayPackage
        desc = libraryDescription
        websiteUrl = siteUrl
        vcsUrl = gitUrl
        licenses = allLicenses
        publish = true
        publicDownloadNumbers = true
        version {
            name = android.defaultConfig.versionName
            released = new Date()
            vcsTag = android.defaultConfig.versionName
        }
    }
}

任务执行输出日志 #

> Task :app:bintrayUpload
Uploading to https://api.bintray.com/content/chathurabuddi/android/datetime-picker-wheel/0.0.1/datetime-picker-wheel/app/unspecified/app-unspecified.aar...
Uploaded to 'https://api.bintray.com/content/chathurabuddi/android/datetime-picker-wheel/0.0.1/datetime-picker-wheel/app/unspecified/app-unspecified.aar'.
Uploading to https://api.bintray.com/content/chathurabuddi/android/datetime-picker-wheel/0.0.1/lk/chathurabuddi/datetime-picker-wheel/0.0.1/datetime-picker-wheel-0.0.1.aar...
Uploaded to 'https://api.bintray.com/content/chathurabuddi/android/datetime-picker-wheel/0.0.1/lk/chathurabuddi/datetime-picker-wheel/0.0.1/datetime-picker-wheel-0.0.1.aar'.
Uploading to https://api.bintray.com/content/chathurabuddi/android/datetime-picker-wheel/0.0.1/lk/chathurabuddi/datetime-picker-wheel/0.0.1/datetime-picker-wheel-0.0.1.pom...
Uploaded to 'https://api.bintray.com/content/chathurabuddi/android/datetime-picker-wheel/0.0.1/lk/chathurabuddi/datetime-picker-wheel/0.0.1/datetime-picker-wheel-0.0.1.pom'.

这个问题的核心原因是你在bintray配置里同时启用了publications和configurations = ['archives']。其中archives配置会默认包含Android模块自动生成的默认AAR文件（也就是那个app-unspecified.aar），而publications已经帮你处理了自定义命名的构件，两者叠加就导致了额外文件的上传。

解决起来很简单，只需要两步调整：

1. 移除多余的configurations配置
   直接删掉bintray块里的configurations = ['archives']这一行，因为我们已经通过publications指定了要上传的构件，不需要再让archives配置来凑热闹了：

   bintray {
       user = _user
       key = _key
       override = true
       publications = ['library']
       // 删掉这一行：configurations = ['archives']
       pkg {
           // 原pkg配置内容不变...
       }
   }
   

2. 显式指定要上传的Artifact（可选但推荐）
   虽然Gradle可能会自动关联正确的AAR，但为了避免后续出现其他意外，建议在MavenPublication块里明确指定要上传的AAR文件路径，让配置更清晰：

   library(MavenPublication) {
       groupId publishGroupId
       artifactId publishArtifactId
       version android.defaultConfig.versionName
       // 新增这一行，明确指定构件文件
       artifact("$buildDir/outputs/aar/${publishArtifactId}-release.aar")
       pom {
           // 原pom配置内容不变...
       }
   }
   

做完这两步后，重新执行bintrayUpload任务，就只会上传你需要的datetime-picker-wheel-0.0.1.aar和对应的pom文件，那个烦人的app-unspecified.aar就不会再出现了。

内容的提问来源于stack exchange，提问作者Chathura Buddhika