Add CI workflow to build against eic-shell

[Copilot]

Repository lacked GitHub Actions CI for testing PRs. Added a minimal build workflow using the eic-shell environment, following the pattern from EICrecon.

Changes

• Added .github/workflows/linux-eic-shell.yml with:
  • Triggers on push to main, PRs, and manual dispatch
  • Concurrency control to cancel redundant runs
  • Build step using CVMFS + eic-shell (eic_xl:nightly)

- uses: cvmfs-contrib/github-action-cvmfs@v5
- name: Build
  uses: eic/run-cvmfs-osg-eic-shell@main
  with:
    platform-release: "${{ env.platform }}:${{ env.release }}"
    run: |
      cmake -B build -S . -DCMAKE_INSTALL_PREFIX=install
      cmake --build build -j $(getconf _NPROCESSORS_ONLN) --target install

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Add CI workflow to this repository</issue_title>
<issue_description>Is your feature request related to a problem? Please describe.
This repository has no github actions workflow to test functionality of pull requests.

Describe the solution you'd like
Implement a CI workflow similar to https://github.com/eic/EICrecon/tree/main/.github/workflows/linux-eic-shell.yml (but much more limited). It should only include a simple build within the eic-shell environment.
</issue_description>

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

• Fixes Add CI workflow to this repository #33

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[Copilot]

Pull request overview

This PR adds a GitHub Actions CI workflow to enable automated build testing for pull requests and pushes to main. The workflow uses the eic-shell environment via CVMFS, following the pattern established in the EICrecon repository. This addresses the repository's lack of automated CI testing.

Key changes:

• Added workflow that triggers on push to main, pull requests, and manual dispatch
• Configured build job using eic_xl:nightly environment with standard CMake build commands
• Implemented concurrency control to cancel redundant workflow runs

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[kkauder]

I'm not very familiar with CI. Lgtm, but how could I test?

[wdconinc]

I'm not very familiar with CI. Lgtm, but how could I test?

Look at https://github.com/eic/eic-smear/actions/runs/19900950398/job/57044424341?pr=34 :-)

[wdconinc]

I'm not very familiar with CI. Lgtm, but how could I test?

Look at https://github.com/eic/eic-smear/actions/runs/19900950398/job/57044424341?pr=34 :-)

If you want, suggest a test command to run to make sure it actually does what it is supposed to do.

Or implement CTest unit tests :-D :-D

[kkauder]

Test command(s) would be easy, but for historical reasons, test data lives in https://github.com/eic/eicsmeardetectors, which presumably isn't even installed anymore.