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Configuring Apache Maven for use with GitHub Packages

You can configure Apache Maven to publish packages to GitHub Package Registry and to use packages stored on GitHub Package Registry as dependencies in a Java project.

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

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Autenticar-se no GitHub Package Registry

You need an access token to publish, install, and delete packages in GitHub Package Registry. You can use a personal access token to authenticate with your username directly to GitHub Package Registry 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 Package Registry. For more information, see "About GitHub Package Registry."

You can authenticate to GitHub Package Registry with Apache Maven by editing your ~/.m2/settings.xml file to include your personal access token. Create a new ~/.m2/settings.xml file if one doesn't exist.

In the servers tag, add a child server tag with an id, replacing USERNAME with your GitHub username, and TOKEN with your personal access token.

In the repositories tag, configure a repository by mapping the id of the repository to the id you added in the server tag containing your credentials. Replace REPOSITORY with the name of the repository you'd like to publish a package to or install a package from, and OWNER with the name of the user or organization account that owns the repository. Como não é permitido usar letras maiúsculas, é preciso usar letras minúsculas no nome do proprietário do repositório, mesmo que o nome do usuário ou da organização no GitHub contenha letras maiúsculas.

If you want to interact with multiple repositories, you can add each repository to separate repository children in the repositories tag, mapping the id of each to the credentials in the servers tag.

<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
                      http://maven.apache.org/xsd/settings-1.0.0.xsd">

  <activeProfiles>
    <activeProfile>github</activeProfile>
  </activeProfiles>

  <profiles>
    <profile>
      <id>github</id>
      <repositories>
        <repository>
          <id>central</id>
          <url>https://repo1.maven.org/maven2</url>
          <releases><enabled>true</enabled></releases>
          <snapshots><enabled>false</enabled></snapshots>
        </repository>
        <repository>
          <id>github</id>
          <name>GitHub OWNER Apache Maven Packages</name>
          <url>https://maven.pkg.github.com/OWNER/REPOSITORY</url>
        </repository>
      </repositories>
    </profile>
  </profiles>

  <servers>
    <server>
      <id>github</id>
      <username>USERNAME</username>
      <password>TOKEN</password>
    </server>
  </servers>
</settings>

Note: GitHub Package Registry does not support SNAPSHOT versions of Apache Maven. Make sure you disable SNAPHOT in your ~/.m2/settings.xml file.

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 Package Registry without needing to store and manage a personal access token. For more information, see "Authenticating with the GITHUB_TOKEN."

Publicar um pacote

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 a repository called OWNER/test.

If you would like to publish multiple packages to the same repository, you can include the URL of the repository in the <scm> element of the pom.xml file. O GitHub fará a correspondência do repositório com base nesse campo. Since the repository name is also part of the distributionManagement element, there are no additional steps to publish multiple packages to the same repository.

For more information on creating a package, see the maven.apache.org documentation.

  1. Edit the distributionManagement element of the pom.xml file located in your package directory, replacing OWNER with the name of the user or organization account that owns the repository and REPOSITORY with the name of the repository containing your project.

    <distributionManagement>
       <repository>
         <id>github</id>
         <name>GitHub OWNER Apache Maven Packages</name>
         <url>https://maven.pkg.github.com/OWNER/REPOSITORY</url>
       </repository>
    </distributionManagement>
    
  2. Publish the package.

    $ mvn deploy

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

Instalar um pacote

To install an Apache Maven package from GitHub Package Registry, edit the pom.xml file to include the package as a dependency. If you want to install packages from more than one repository, add a repository tag for each. For more information on using a pom.xml file in your project, see "Introduction to the POM" in the Apache Maven documentation.

  1. Authenticate to GitHub Package Registry. Para obter mais informações, consulte "Autenticar-se no GitHub Package Registry."

  • Add the package dependencies to the dependencies element of your project pom.xml file, replacing com.example.test with your package.

    <dependencies>
      <dependency>
        <groupId>com.example</groupId>
        <artifactId>test</artifactId>
        <version>1.0.0</version>
      </dependency>
    </dependencies>
    
  • Instale o pacote.

    $ mvn install
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