Adding app version as an attribute

[matthewbadeau]

Checklist

🚨 Please review the guidelines for contributing to this repository. 🚨

• Make sure you are making a pull request against our main branch (left side)
• Check that that your branch is up to date with our main.
• Make sure you are requesting to pull a topic/feature/bugfix branch (right side). Don't request your main!
• Check that the tests and code linter both pass.
• If you're a new contributor, please sign our contributor license agreement.

Warnings

• This PR will change existing database contents.
• This PR introduces a breaking change to existing installations.

Summary

This change adds an app version, git SHA, and upstream repo as config variables and uses these in the footer.

Linked issues

Description of changes

Part of the implementation of nodeinfo for ActivityPub needs an app version to be included in the requests to the end point. With this change, the app version can be queried programmatically.

Dev instances will now also include the commit SHA in the footer.

[Floppy]

Could you update lib/usage_report.rb to use this as well, so it's consistent?

[matthewbadeau]

👋 @Floppy I've pulled it back out of draft. Usage reports now report the currently running version even in dev. Though the code is a bit weird, I explained my reasoning here

[Floppy]

Added a couple of suggestions to make the removal of docker tag prefixes and length of git sha more consistent.

[codeclimate]

Code Climate has analyzed commit 7dbca64 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 86.7% (0.0% change).

View more on Code Climate.