Add GitHub workflow to detect apps affected by code changes [skip percy]

[CharlyMartin]

📝 Description

This pull request adds a GitHub action apps-detect-changes.yml to determine whether an app is affected by code changes in a each PR. The output is then used by apps-cypress-percy-test.yml To only run the tests in the apps with code changes.

This PR also fixes the deps of the UXIT app as it was preventing the action from running properly.

🧪 How to Test

1. Make a change in one or several apps
2. Commit and push it to this PR
3. Make sure that apps-detect-changes.yml picks up changes only in the relevant apps
4. Revert the changes

(Tests previously made on a separate PR #1456)

🔖 Resources

• https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/passing-information-between-jobs
• https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/accessing-contextual-information-about-workflow-runs#needs-context

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
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[notion-workspace]

[FF][FFDW] Check Cypress GitHub Actions

[CharlyMartin]

This morning I woke up and the first thing I thought was... Will this also cause the tests to fail silently if Cypress throws an error?? To be tested 😄

[CharlyMartin]

Important

On a broader note, I realized that this implementation only tracks changes in the apps folder, which is not enough in a monorepo environment. Changes in the packages folder also affect some or all the apps. Git alone won’t help here—we may need to use Turbo’s dependency graph to track that properly. Have a quick look at it now 👀

[CharlyMartin]

if [[ "${{ github.event_name }}" == "pull_request" ]]; then
  # For PRs, compare against the base branch
  TURBO_OUTPUT=$(npx turbo run build --filter=...[origin/${{ github.base_ref }}] --dry=json)
else
  # For pushes, compare against the previous commit
  TURBO_OUTPUT=$(npx turbo run build --filter=...[HEAD^] --dry=json)
fi

[CharlyMartin]

We should rename the folder to the same name as package.json.

So we can add a npx turbo-ignore step to the Cypress test action

https://turborepo.com/docs/guides/skipping-tasks

[mirhamasala]

@CharlyMartin ~ I moved this to draft until we figured it out. 🙏🏼

[CharlyMartin]

@mirhamasala I'm hoping that something as simple as that will work: #1465