Allow user to specify artifact name

[TheBatman09]

Use Case

Hello guys, I've started using this action and I came across the following issue: I have some dynamically retrieved data that I write with a step name and a matrix name. Then I retrieve some data again and try to write it with a different step name but same matrix name. And here when the data is the same for first and second time I get an error saying the artifact already exists. By looking at the code it looks like that's because the artifact name used is a hash of the content and in my case the content is the same in both cases.

Expected Behavior

I expect to be able to write the same data twice with a different step name.

Describe Ideal Solution

I think the ideal solution would be to add a parameter to the action to allow the user to chose the key used to store the artifact and/or also include the step name in the hash to allow storing twice the same data if it has a different step name.

Bonus

It seems like a fairly easy fix, i'd be happy to contribute if needed

[TheBatman09]

Hey @goruha If you'd like I could propose a pull request for this 😉

[goruha]

@TheBatman09, thanks for the feature request.
Your PR is more than welcome.

[TheBatman09]

Voila !

[wildheartt]

Hi @TheBatman09,

Thank you for bringing this up! Your use case makes sense, and I can see how the current hashing mechanism could cause conflicts when trying to store the same data twice with different step names.

I could say about some solutions in my mind:

1. Allow users to specify a custom artifact name – This would give more control over naming and avoid hash-based conflicts.
2. Include the step name in the hash calculation – This would differentiate artifacts even if their contents are identical.
3. Provide an option to append a unique identifier (e.g., timestamp or UUID) – This would ensure uniqueness without requiring significant changes.

[TheBatman09]

Hey thanks for your answer, actually I forked to be able to use it back in the days and I did made a pr with solution 1 : https://github.com/cloudposse/github-action-matrix-outputs-write/pull/45/files