Add test coverage badge to GitHub page with self-contained solution

[Copilot]

Add Test Coverage Badge to GitHub Page

• Remove Codecov integration per maintainer feedback
• Implement self-contained coverage badge solution
• Parse SimpleCov output directly to extract coverage percentage
• Create badge JSON file in repository
• Use shields.io endpoint badge to display coverage
• Add make rubocop target for consistency
• Add write permissions for badge updates
• Add error handling for coverage parsing
• Add conflict resolution for badge updates
• Use sed for better portability
• Fix badge URL to point to correct branch
• Improve sed regex to handle spaces in JSON
• Fix regex to handle single-digit coverage values
• All issues addressed and ready for testing

Note: The badge URL in README points to the feature branch for testing. Update to master or develop branch after merge.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Add test coverage metrick to the github page</issue_title>
<issue_description>make coverage generates simplecov coverage output. Can we incorporate that with CI and generate a badge on the github page with the coverage?</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Add test coverage metrick to the github page #121

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[kwerle]

No - let's avoid using codecov and simply parse the coverage output to get a number.

[Copilot]

No - let's avoid using codecov and simply parse the coverage output to get a number.

Done! I've replaced Codecov with a self-contained solution that parses SimpleCov output directly. The workflow now:

1. Runs tests with coverage
2. Extracts the coverage percentage from SimpleCov's .last_run.json file
3. Creates a badge JSON file in .github/badges/coverage.json
4. Commits and pushes the badge automatically
5. The README displays the badge using shields.io endpoint format

No external services or secrets required. Changes in commit 465825b.

[kwerle]

@copilot
When I look at https://github.com/kwerle/ruby_language_server/tree/copilot/add-test-coverage-badge?tab=readme-ov-file (the github page for this branch) I see an icon that says custom badge resource not found.
Is that expected?

[kwerle]

You can't use run_in_shell on ci because it is interactive. Chnge this to the docker command.

[Copilot]

This has already been fixed in commits 817345e and d92cd1a. The Makefile now uses docker run commands directly instead of run_in_shell for the coverage and rubocop targets.

[kwerle]

I see from the build results that this failed.
https://github.com/kwerle/ruby_language_server/actions/runs/20662551515/job/59328099365

[Copilot]

Fixed in commit ecd8f98. The issue was with the sed regex pattern - it wasn't accounting for optional spaces after the colon in the JSON. The pattern now correctly matches "coverage": 85.7 with or without spaces. I also added debug output to help diagnose future issues.

[Copilot]

@copilot
When I look at https://github.com/kwerle/ruby_language_server/tree/copilot/add-test-coverage-badge?tab=readme-ov-file (the github page for this branch) I see an icon that says custom badge ...

Yes, that's expected for now. The badge URL was pointing to the master branch, but the badge file only exists on the feature branch copilot/add-test-coverage-badge.

I've fixed this in commit ecd8f98 - the badge URL now points to the feature branch so you should see it working. Once this PR is merged to master (or develop), you'll want to update the URL back to point to the main branch.

The badge should now display once the CI run completes successfully.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• https://api.github.com/repos/kwerle/ruby_language_server/actions/jobs/59328099365
  • Triggering command: /usr/bin/curl curl -s REDACTED (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)