Instead of triggering on every pull_request push, test-cgal now fires
only when a PR comment contains "/test-cgal". This prevents the Pi
runner (3-4 GB RAM, swap constantly loaded) from queuing CGAL builds
faster than it can drain them on every WIP commit.
Workflow changes:
- Add `issue_comment: types: [created]` to the top-level `on:` block
- test-cgal `if:` condition:
event is issue_comment
AND comment is on a PR (issue.pull_request != null)
AND comment body contains "/test-cgal"
- Checkout uses `refs/pull/N/head` so the PR branch is checked out
correctly (issue_comment sets GITHUB_REF to the default branch, not
the PR branch)
Usage: write "/test-cgal" as a PR comment to trigger the 277-test
CGAL suite. The build uses CONFORMALLAB_LOW_MEMORY_BUILD=ON (-O0,
no PCH, unity batch 1) and runs in a 2000 MB container.
CLAUDE.md: CI table + status paragraph updated accordingly.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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