Скачать или смотреть Solving the SDKMAN Local Installation Dilemma

Discover how to effectively use `SDKMAN` for local installation of Groovy and other SDKs when facing internet restrictions.
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This video is based on the question https://stackoverflow.com/q/66017361/ asked by the user 'xpt' ( https://stackoverflow.com/u/2125837/ ) and on the answer https://stackoverflow.com/a/66018331/ provided by the user 'BahmanM' ( https://stackoverflow.com/u/431974/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Introduction: The SDKMAN Local Installation Challenge

If you’ve encountered issues while trying to install SDKs using SDKMAN in an environment where internet access is restricted, you’re not alone. Many developers, especially those working in R&D or corporate environments, face obstacles because certain downloads are blocked, leading to frustration when trying to set up essential tools like Groovy.

In this post, we will walk you through the solution to the SDKMAN local installation problem. Specifically, I will guide you on how to utilize a downloaded SDK package and ensure proper installation without needing an internet connection.

Understanding the Problem

The Situation

You attempted to download the Groovy SDK while being restricted by website filters that block access to the download site. After downloading the SDK at home, you may have experienced errors with SDKMAN when trying to install it locally, despite the fact that the SDK package was available on your machine.

Common Errors Encountered

Internet Not Reachable: Notifications that certain functionalities are disabled due to perceived lack of internet access.

File Availability Issues: Errors stating that the downloaded SDK or its directory isn’t accessible while offline.

These messages can be quite misleading, especially when you're certain you have the correct files ready for installation.

Solution: Step-by-Step Local Installation with SDKMAN

Here’s how to successfully install the Groovy SDK locally using SDKMAN:

Step 1: Extract the SDK

First, you need to extract the downloaded SDK ZIP file to the appropriate sdkman folder on your system. Follow these instructions:

Open your terminal.

Use the unzip command to extract the contents. This is typically done with the following command:

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

Here, ~/.sdkman/candidates/groovy is the destination where SDKMAN expects to find SDK versions.

Ensure the path reflects the location you downloaded the ZIP file to (adjust as necessary).

Step 2: Set Default Version

Now that the SDK has been extracted, you need to tell SDKMAN to use the newly added version as the default. Execute this command in your terminal:

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

This command sets the extracted Groovy 2.4.12 version as the default for any projects that require it.

Step 3: Verify the Installation

To confirm that the installation was successful, you can check the currently set version of Groovy with:

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

If everything was done correctly, it should show Groovy 2.4.12 as the active version.

Conclusion

Installing SDKs like Groovy locally can be a breeze, even in a restrictive environment, if you follow the right steps. By extracting the SDK files into the proper directories and configuring SDKMAN to recognize these files, you can bypass many of the common restrictions and get back to your development work promptly.

And remember, if you run into any unexpected issues, referring back to this guide might provide the clarity needed to overcome those hurdles.

Happy coding!