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Use packages from Google Maven Repository

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Azure DevOps Services | Azure DevOps Server 2022 - Azure DevOps Server 2019

With Azure Artifacts, developers can enable upstream sources to consume packages from different public registries such as Google Maven Repository. Once enabled, Azure Artifacts will automatically save a copy of any package installed from the upstream. Additionally, Azure Artifacts supports other Maven upstream sources such as Maven Central, Gradle Plugins, and JitPack. In this article, you'll learn how to:

  • Add Google Maven Repository as an upstream source
  • Consume a package from upstream
  • Find saved packages in your feed

Prerequisites

  • An Azure DevOps organization and a project. Create an organization or a project if you haven't already.

  • An Azure Artifacts feed.

Enable upstream sources

If you don't have a feed already, follow the instructions below to create a new feed, and make sure to check the upstream sources checkbox to enable them. If you already have a feed, jump to the next step to add Google Maven Repository as an upstream source:

  1. Sign in to your Azure DevOps organization and navigate to your project.

  2. Select Artifacts, and then select Create Feed.

  3. Provide a Name for your feed, choose the Visibility option that defines who can view your packages, check Include packages from common public sources if you want to include packages from sources like nuget.org or npmjs.com, and for Scope, decide whether the feed should be scoped to your project or the entire organization.

  4. Select Create when you're done.

    Screenshot that shows selections for creating a new feed in Azure DevOps Services.

  1. Sign in to your Azure DevOps server, and then go to your project.

  2. Select Artifacts, and then select Create Feed.

  3. Provide a Name for your feed, choose the Visibility option that defines who can view your packages, check Include packages from common public sources if you want to include packages from sources like nuget.org or npmjs.com, and for Scope, decide whether the feed should be scoped to your project or the entire organization.

  1. Select Create when you're done.

    Screenshot that shows selections for creating a new feed in Azure DevOps 2022.

  1. Select Create when you're done.

    Screenshot that shows selections for creating a new feed in Azure DevOps 2020.

  1. Sign in to your Azure DevOps server, and then go to your project.

  2. Select Artifacts, and then select New feed.

  3. For Name, enter a descriptive name for your feed.

    For Visibility, select an option to indicate who can view packages within the feed.

    If you want to include packages from public sources, select the Use packages from public sources through this feed option.

  4. Select Create when you're done.

    Screenshot that shows selections for creating a new feed in Azure DevOps 2019.

Note

By default, newly created feeds have their project's Build Service value set to Feed and Upstream Reader (Collaborator).

Add Google Maven Repository upstream

If you checked the upstream sources checkbox when creating your feed, Google Maven Repository should already be added as an upstream source. If not, you can add it manually using the following steps:

  1. Sign in to your Azure DevOps organization, and then navigate to your project.

  2. Select Artifacts, and then select the gear icon gear icon in the top right corner to navigate to your Feed Settings.

  3. Select Upstream sources, and then select Add Upstream.

  4. Select Public source, and then select Google Maven Repository (https://maven.google.com/web/index.html) from the dropdown menu.

  5. Select Add when you're done, and then select Save again in the top right corner to save your changes.

Note

Maven snapshots are not supported with Maven upstream sources.

Save packages from Google Maven Repository

Before saving packages from Google Maven Repository, make sure you have set up your project to connect to your feed. If you haven't done so already, follow the instruction in the project setup to set up your Maven project and connect to your feed.

In this example, we will save the Zipflinger Library from Google Maven Repository.

  1. Navigate to Google Maven Repository at https://mvnrepository.com/.

  2. Search for the Zipflinger library. Select the Zipflinger package, and then select the version you wish to install.

  3. Copy the <dependency> snippet from the Maven tab.

    <dependency>
    <groupId>com.android</groupId>
    <artifactId>zipflinger</artifactId>
    <version>8.3.0-alpha13</version>
</dependency>

  4. Open your pom.xml file and paste the snippet inside your <dependencies> tag, and then save your file.

  5. Run the following command from the same path as your pom.xml file to install your dependencies:

    mvn install

Note

To save packages from upstreams, you must have the Feed and Upstream Reader (Collaborator) role or higher. See Manage Permissions for more details.

View saved packages

To view the packages you installed from upstream, select the Google Maven Repository source from the dropdown menu.

  1. Sign in to your Azure DevOps organization, and then navigate to your project.

  2. Select Artifacts, and then select your feed from the dropdown menu.

  3. Select the Google Maven Repository source from the dropdown menu to find packages from this upstream.

  4. The Zipflinger package that we saved in the previous step is now available in our feed, as Azure Artifacts automatically saved a copy when we executed the mvn install command.

    A screenshot showing packages from Google Maven Repository.

Tip

If Maven is not downloading all your dependencies, run the following command from the project directory to regenerate your project's files: mvn eclipse:eclipse -DdownloadSources=true -DdownloadJavadocs=true