Working with the Gradle registry

Authenticating to GitHub Package Registry

You need an access token to publish, install, and delete packages.

You can use a personal access token (PAT) to authenticate to GitHub Package Registry or the GitHub Enterprise Server API. When you create a personal access token, you can assign the token different scopes depending on your needs. For more information about packages-related scopes for a PAT, see "About permissions for GitHub Packages."

To authenticate to a GitHub Package Registry registry within a GitHub Actions workflow, you can use:

• GITHUB_TOKEN to publish packages associated with the workflow repository.
• a PAT to install packages associated with other private repositories (which GITHUB_TOKEN can't access).

Para obter mais informações sobre GITHUB_TOKEN usado nos fluxos de trabalho de GitHub Actions, consulteAutenticação em um fluxo de trabalho". For more information about using GITHUB_TOKEN with Gradle, see "Publishing Java packages with Gradle."

Authenticating with a personal access token

Você deve usar um token de acesso pessoal com os escopos apropriados para publicar e instalar pacotes no GitHub Package Registry. Para obter mais informações, consulte "Sobre GitHub Package Registry."

You can authenticate to GitHub Package Registry with Gradle using either Gradle Groovy or Kotlin DSL by editing your build.gradle file (Gradle Groovy) or build.gradle.kts file (Kotlin DSL) file to include your personal access token. You can also configure Gradle Groovy and Kotlin DSL to recognize a single package or multiple packages in a repository.

Replace REGISTRY-URL with the URL for your instance's Maven registry. If your instance has subdomain isolation enabled, use maven.HOSTNAME. If your instance has subdomain isolation disabled, use HOSTNAME/_registry/maven. In either case, replace HOSTNAME with the host name of your GitHub Enterprise Server instance.

Replace USERNAME with your GitHub username, TOKEN with your personal access token, REPOSITORY with the name of the repository containing the package you want to publish, and OWNER with the name of the user or organization account on GitHub that owns the repository. Because uppercase letters aren't supported, you must use lowercase letters for the repository owner even if the GitHub user or organization name contains uppercase letters.

Example using Gradle Groovy for a single package in a repository

plugins {
    id("maven-publish")
}
publishing {
    repositories {
        maven {
            name = "GitHubPackages"
            url = uri("https://REGISTRY-URL/OWNER/REPOSITORY")
            credentials {
                username = project.findProperty("gpr.user") ?: System.getenv("USERNAME")
                password = project.findProperty("gpr.key") ?: System.getenv("TOKEN")
            }
        }
    }
    publications {
        gpr(MavenPublication) {
            from(components.java)
        }
    }
}

Example using Gradle Groovy for multiple packages in the same repository

plugins {
    id("maven-publish") apply false
}
subprojects {
    apply plugin: "maven-publish"
    publishing {
        repositories {
            maven {
                name = "GitHubPackages"
                url = uri("https://REGISTRY-URL/OWNER/REPOSITORY")
                credentials {
                    username = project.findProperty("gpr.user") ?: System.getenv("USERNAME")
                    password = project.findProperty("gpr.key") ?: System.getenv("TOKEN")
                }
            }
        }
        publications {
            gpr(MavenPublication) {
                from(components.java)
            }
        }
    }
}

Example using Kotlin DSL for a single package in the same repository

plugins {
    `maven-publish`
}
publishing {
    repositories {
        maven {
            name = "GitHubPackages"
            url = uri("https://REGISTRY-URL/OWNER/REPOSITORY")
            credentials {
                username = project.findProperty("gpr.user") as String? ?: System.getenv("USERNAME")
                password = project.findProperty("gpr.key") as String? ?: System.getenv("TOKEN")
            }
        }
    }
    publications {
        register<MavenPublication>("gpr") {
            from(components["java"])
        }
    }
}

Example using Kotlin DSL for multiple packages in the same repository

plugins {
    `maven-publish` apply false
}
subprojects {
    apply(plugin = "maven-publish")
    configure<PublishingExtension> {
        repositories {
            maven {
                name = "GitHubPackages"
                url = uri("https://REGISTRY-URL/OWNER/REPOSITORY")
                credentials {
                    username = project.findProperty("gpr.user") as String? ?: System.getenv("USERNAME")
                    password = project.findProperty("gpr.key") as String? ?: System.getenv("TOKEN")
                }
            }
        }
        publications {
            register<MavenPublication>("gpr") {
                from(components["java"])
            }
        }
    }
}

Publishing a package

Por padrão, o GitHub publica o pacote em um repositório existente com o mesmo nome do pacote. For example, GitHub will publish a package named com.example.test in the OWNER/test GitHub Package Registry repository.

Após publicar um pacote, você poderá visualizá-lo no GitHub. Para obter mais informações, consulte "Visualizar pacotes".

1. Autenticar para GitHub Package Registry. Para obter mais informações, consulte "Authenticating to GitHub Package Registry."

2. After creating your package, you can publish the package.

   $ gradle publish

Using a published package

To use a published package from GitHub Package Registry, add the package as a dependency and add the repository to your project. For more information, see "Declaring dependencies" in the Gradle documentation.

1. Autenticar para GitHub Package Registry. Para obter mais informações, consulte "Authenticating to GitHub Package Registry."

2. Add the package dependencies to your build.gradle file (Gradle Groovy) or build.gradle.kts file (Kotlin DSL) file.

   Example using Gradle Groovy:

   dependencies {
       implementation 'com.example:package'
   }

   Example using Kotlin DSL:

   dependencies {
       implementation("com.example:package")
   }

3. Add the repository to your build.gradle file (Gradle Groovy) or build.gradle.kts file (Kotlin DSL) file.

   Example using Gradle Groovy:

   repositories {
       maven {
           url = uri("https://REGISTRY-URL/OWNER/REPOSITORY")
           credentials {
               username = project.findProperty("gpr.user") ?: System.getenv("USERNAME")
               password = project.findProperty("gpr.key") ?: System.getenv("TOKEN")
           }
       }
   }

   Example using Kotlin DSL:

   repositories {
       maven {
           url = uri("https://REGISTRY-URL/OWNER/REPOSITORY")
           credentials {
               username = project.findProperty("gpr.user") as String? ?: System.getenv("USERNAME")
               password = project.findProperty("gpr.key") as String? ?: System.getenv("TOKEN")
           }
       }
   }

Further reading

• "Working with the Apache Maven registry"
• "Deleting a package"