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Discover how to eliminate the frustrating `Password required` pop-up when cloning GitLab repositories using JGit in Eclipse RCP.
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This video is based on the question https://stackoverflow.com/q/71829938/ asked by the user 'paul' ( https://stackoverflow.com/u/11249/ ) and on the answer https://stackoverflow.com/a/71840541/ provided by the user 'paul' ( https://stackoverflow.com/u/11249/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Understanding the Password Pop-Up Issue in JGit and Eclipse RCP

If you're using JGit within an Eclipse Rich Client Platform (RCP) application, you might encounter a frustrating situation: a pop-up window asking for a password when you attempt to clone a GitLab repository. This pop-up can occur even if you’ve set up your API tokens correctly. In this guide, we’ll explore why this happens and how to resolve it efficiently.

The Problem: Password Pop-Up on Cloning

When trying to clone a repository from GitLab using JGit in Eclipse RCP, many developers face an unexpected prompt asking for username and password. Here’s what’s happening in general:

API Tokens: You’ve configured tokens to access the GitLab API, and everything functions smoothly with API calls.

Clone Operation: However, when you initiate the clone operation, a dialog appears demanding your GitLab credentials.

Bypassing the Pop-Up: Interestingly, upon clicking cancel, the clone operation completes successfully. Yet, the presence of the pop-up remains inconvenient and confusing.

Many suspect that this issue could be related to Eclipse's proxy settings. Let’s explore how to fix it by properly configuring your JGit calls to prevent the pop-up from appearing.

Solution: Adding Credentials Directly to the URL

The solution to bypassing the password prompt lies in passing the authentication details directly in the repository URL along with setting a credentials provider. Here’s how you can implement this.

Step-by-Step Implementation

Update Your Clone Command: Modify the clone command in your JGit setup. Incorporate your token directly into the repository URL. Here’s a sample of how to do this:

[[See Video to Reveal this Text or Code Snippet]]

Explanation:

Replace {the-token-here} with your actual API token.

The URL format ensures that the required credentials are already included in the clone request.

Consider Proxy Settings: If you're still facing issues related to proxies (which might not directly pertain to the pop-up but could affect connectivity), ensure you've correctly configured your Eclipse proxy settings in the plugin_customization.ini. Here's an example of what that might look like:

[[See Video to Reveal this Text or Code Snippet]]

Double-check that your GitLab URL is included in nonProxiedHosts if you are utilizing a proxy, to prevent routing issues.

Conclusion

By adding your credentials directly to the GitLab repository URL and ensuring your Eclipse proxy configurations are correctly set, you can effectively eliminate the Password required pop-up when using JGit within Eclipse RCP. This not only streamlines your development process but also enhances your productivity by removing unnecessary interruptions. Remember to include your token in the URL correctly and test it outside of Eclipse first to verify that everything is functioning as expected. Happy coding!