Скачать или смотреть Solving the requirements.txt Issue in Reusable GitHub Actions Workflows

Learn how to prevent `actions/setup-python` from failing in GitHub Actions when reusing workflows across repositories.
---
This video is based on the question https://stackoverflow.com/q/73789054/ asked by the user 'Konrad Höffner' ( https://stackoverflow.com/u/398963/ ) and on the answer https://stackoverflow.com/a/73797990/ provided by the user 'Konrad Höffner' ( https://stackoverflow.com/u/398963/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Reusable GitHub action workflow with actions/setup-python fails because it can't find requirements.txt

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Dealing with requirements.txt in Reusable GitHub Actions Workflows

When working with GitHub Actions, developers often face challenges due to the complex interactions between different repositories. A common issue arises when a reusable action workflow fails because it cannot locate requirements.txt. This guide explores this problem and provides solutions to ensure that your workflows run smoothly, even when involving multiple repositories.

The Problem

Imagine you have two repositories: Repository A, which contains a reusable GitHub action workflow, and Repository B, where you intend to use that action. The action in Repository A runs a Python script through a bash wrapper. However, when you call this action from Repository B, you encounter an error indicating that the requirements.txt file cannot be found.

Sample Error Message

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

This error occurs for two main reasons:

Local reference to a remote file.

Using actions/setup-python without a valid file for hashing.

We will dive into each problem and outline effective solutions.

Solutions

1. Local Reference to a Remote File

The first issue relates to how to properly reference files from Repository B when invoking scripts in Repository A. You can encounter an error when you try to run a script that exists in another repository due to incorrect file paths. To fix this, you can utilize the github.action_path to directly point to the script.

Updated Workflow Snippet

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

This adjustment ensures that you're correctly referencing the script from the reusable action in Repository A.

2. Using actions/setup-python without a File for Hashing

The next hurdle is about the actions/setup-python hashing mechanism that relies on requirements.txt. By default, if it cannot find this file, it results in an error. Although there's a cache-dependency-path attribute available for setup-python, it doesn't seem to function correctly when referring to a file across repositories.

Incorrect Usage Example

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

To avoid the requirements.txt mismatch, we can disable the default caching and resort to using another caching action for a smoother experience. Here’s a refined approach:

Corrected Workflow Approach

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

Final Thoughts

By making the above adjustments, you can effectively eliminate the persistent error messages associated with requirements.txt when using reusable GitHub action workflows across repositories. These solutions not only enhance the reliability of your CI/CD pipelines but also optimize the way dependencies are managed throughout your projects.

Now you can run your workflows in Repository B confidently, seamlessly utilizing the actions defined in Repository A without the hassle of missing files.

Happy coding!