Configuring Gradle for use with GitHub Packages

You can configure Gradle to publish packages to GitHub Packages and to use packages stored on GitHub Packages as dependencies in a Java project.

GitHub Packages is available with GitHub Free, GitHub Pro, GitHub Team, and GitHub Enterprise Cloud. GitHub Packages is unavailable for per-repository plans, which are legacy billing plans. For more information, see "GitHub's products."

In this article

Authenticating to GitHub Packages

You need an access token to publish, install, and delete packages in GitHub Packages. You can use a personal access token to authenticate with your username directly to GitHub Packages or the GitHub API. You can use a GITHUB_TOKEN to authenticate using a GitHub Actions workflow.

Authenticating with a personal access token

You must use a personal access token with the appropriate scopes to publish and install packages in GitHub Packages. For more information, see "About GitHub Packages."

You can authenticate to GitHub Packages 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 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 upper case 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://maven.pkg.github.com/OWNER/REPOSITORY")
            credentials {
                username = project.findProperty("gpr.user") ?: System.getenv("USERNAME")
                password = project.findProperty("gpr.key") ?: System.getenv("PASSWORD")
            }
        }
    }
    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://maven.pkg.github.com/OWNER/REPOSITORY")
                credentials {
                    username = project.findProperty("gpr.user") ?: System.getenv("USERNAME")
                    password = project.findProperty("gpr.key") ?: System.getenv("PASSWORD")
                }
            }
        }
        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://maven.pkg.github.com/OWNER/REPOSITORY")
            credentials {
                username = project.findProperty("gpr.user") as String? ?: System.getenv("USERNAME")
                password = project.findProperty("gpr.key") as String? ?: System.getenv("PASSWORD")
            }
        }
    }
    publications {
        register("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 {
        repositories {
            maven {
                name = "GitHubPackages"
                url = uri("https://maven.pkg.github.com/OWNER/REPOSITORY")
                credentials {
                    username = project.findProperty("gpr.user") as String? ?: System.getenv("USERNAME")
                    password = project.findProperty("gpr.key") as String? ?: System.getenv("PASSWORD")
                }
            }
        }
        publications {
            register("gpr") {
                from(components["java"])
            }
        }
    }
}

Authenticating with the GITHUB_TOKEN

If you are using a GitHub Actions workflow, you can use a GITHUB_TOKEN to publish and consume packages in GitHub Packages without needing to store and manage a personal access token. For more information, see "Authenticating with the GITHUB_TOKEN."

Publishing a package

By default, GitHub uses the package name to create a repository where the package will be published. For example, GitHub will publish a package named com.example.test in the OWNER/test GitHub Packages repository.

After you publish a package, you can view the package on GitHub. For more information, see "Viewing packages."

  1. Authenticate to GitHub Packages. For more information, see "Authenticating to GitHub Packages."

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

    $ gradle publish

Installing a package

You can install a package by adding the package as a dependency to your project. For more information, see "Declaring dependencies" in the Gradle documentation.

  1. Authenticate to GitHub Packages. For more information, see "Authenticating to GitHub Packages."

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

    Example using Grady Groovy:

    dependencies {
        implementation 'com.example:package'
    }

    Example using Kotlin DSL

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

    $ gradle install

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