Gradle 签署 Android 库出版物：无法执行签署任务，因为它没有配置签署人

Question

已经几个小时了，我一直在尝试在 Maven Central 上发布/发布签名的工件。

最终发布后，我没有通过“签名验证”测试。经过一番研究，我发现即使我的档案有签名，我的出版物也没有签名。

所以在添加这一行后：sign publishing.publications.release 签署出版物我在执行以下任务时收到此错误publishReleasePublicationToMavenCentralRepository：：

无法执行签名任务 ':xxx:signReleasePublication'，因为它没有配置签名者

Gradle 包装器：7.1.1。
build.gradle（库级别）：

apply plugin: 'com.android.library'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'signing'
apply plugin: 'maven-publish'

repositories {
    mavenCentral()
    google()
    jcenter()
    maven { url "https://jitpack.io" }
}

android {
    compileSdkVersion 30
    buildToolsVersion "29.0.3"


    defaultConfig {
        minSdkVersion 21
        targetSdkVersion 30
        versionCode 9
        versionName "1.1.4"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        consumerProguardFiles 'consumer-rules.pro'
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    kotlinOptions {
        jvmTarget = "1.8"
    }
}

Properties properties = new Properties()
properties.load(project.rootProject.file('local.properties').newDataInputStream())
// Because the components are created only during the afterEvaluate phase, you must
// configure your publications using the afterEvaluate() lifecycle method.

afterEvaluate {
    publishing {
        publications {
            release(MavenPublication) {
                groupId = 'xxxx'
                artifactId = 'xxx'
                version = '1.1.4'
                from components.release
                signing {
                    useInMemoryPgpKeys(
                            properties.getProperty('signing.keyId'),
                            properties.getProperty('signing.secretKeyRingFile'),
                            properties.getProperty('signing.password')
                    )
                    sign publishing.publications.release //It's after adding this specific line that I got the error of no configured signatory 
                    sign configurations.archives
                }
                pom {
                    //I also tried to put the signing block here but nothing changes
                    name = 'xxx'
                    description = 'xxx'
                    url = 'xxx
                    licenses {
                        license {
                            name = 'MIT License'
                            url = 'https://opensource.org/licenses/MIT'
                        }
                    }
                    developers {
                        developer {
                            id = 'xxx'
                            name = 'xxx'
                            email = 'xxx'
                        }
                    }
                    scm {
                        connection = 'scm:git:git://github.com/xxx'
                        developerConnection = 'scm:git:ssh://github.com/xxx'
                        url = 'https://github.com/xxx'
                    }
                }
            }
        }
        repositories {
            maven {
                // change URLs to point to your repos, e.g. http://my.org/repo
                //def releasesRepoUrl = layout.buildDirectory.dir('repos/releases')
                //def snapshotsRepoUrl = layout.buildDirectory.dir('repos/snapshots')
                url = uri("https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/")
                credentials {
                    username = properties.getProperty('ossrhUsername')
                    password = properties.getProperty('ossrhPassword')
                }
            }
        }
    }
}

我在这里看到了一个没有得到回答的问题，我得到了完全相同的错误：Gradle build configure signatory

编辑：这是我gradle.properties位于~/.gradle/：

mavenCentralUsername=xxx
mavenCentralPassword=xxx
signing.keyId=xxx
signing.password=xxx
signing.secretKeyRingFile=xxx
ossrhUsername=xxx
ossrhPassword=xxx

编辑：为了清楚起见：我添加了这一行，因为当我在没有此行的情况下发布发布后尝试关闭发布时，我在 Nexus 存储库上遇到签名失败：

Answer 1

我终于能够使用我签名的工件发布和发布我的存储库！

出了什么问题：
我正在使用useInMemoryPgpKeys（我不应该）
我从未将我的分发gpg key到任何服务器

所以为此我只是做了以下事情：

gpg --keyserver keys.openpgp.org --send-keys yourKey

Central 服务器支持 3 个服务器：

keyserver.ubuntu.com
keys.openpgp.org
pgp.mit.edu

但我建议上传，openpgp因为ubuntu没有用（当我关闭 Nexus 上的 repo 时，我收到一条错误消息，说它在任何服务器上都找不到密钥）。

要知道您的密钥，只需运行：

gpg --list-keys

你的钥匙应该是这样的： CA925CD6C9E8D064FF05B4728190C4130ABA0F98

所以有我的最终 build.gradle：

Properties properties = new Properties()
properties.load(project.rootProject.file('local.properties').newDataInputStream())
// Because the components are created only during the afterEvaluate phase, you must
// configure your publications using the afterEvaluate() lifecycle method.

afterEvaluate {
    publishing {
        publications {
            release(MavenPublication) {
                groupId = 'xxx'
                artifactId = 'xxx'
                version = mVersionName
                pom {
                    signing {
                        sign publishing.publications.release
                        sign configurations.archives
                    }
                    name = 'WeLoop'
                    description = 'xxx'
                    url = 'xxx'
                    licenses {
                        license {
                            name = 'MIT License'
                            url = 'https://opensource.org/licenses/MIT'
                        }
                    }
                    developers {
                        developer {
                            id = 'xxx'
                            name = 'xxx'
                            email = 'xxx'
                        }
                    }
                    scm {
                        connection = 'scm:git:git://github.com/xxx.git'
                        developerConnection = 'scm:git:ssh://github.com/xxx'
                        url = 'https://github.com/xxx'
                    }
                }
            }
        }
        repositories {
            maven {
                url = uri("https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/")
                credentials {
                    username = properties.getProperty('mavenCentralUsername')
                    password = properties.getProperty('mavenCentralPassword')
                }
            }
        }
    }
}

和我的最后~/.gradle/gradle.properties：

mavenCentralUsername=xxx
mavenCentralPassword=xxx
signing.keyId=xxx
signing.password=xxx
signing.secretKeyRingFile=/xxx/secring.gpg