Make GHCR cache exports and consumer pushes conditional for external PRs#3423
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### Motivation - External fork PRs were failing CI at Docker build/cache steps because the runner `GITHUB_TOKEN` for forks does not have permission to write GHCR packages or cache entries. ### Description - In `.github/workflows/ci.yml` conditionally disable `cache-to` exports to GHCR for external pull requests while preserving cache exports for same-repo runs, pushes, merge groups, and workflow dispatches. - In `.github/workflows/anneal.yml` conditionally disable `cache-to` and guard the `Build and push Docker image` step so image push/cache writes are only attempted when the run is allowed to write to GHCR. - In `.github/workflows/anneal.yml` add `if:` guards on Anneal consumer jobs (`anneal_tests` and `verify_examples`) so those consumer jobs are skipped for external fork PRs that cannot publish the GHCR image they would consume. ### Testing - Ran `./ci/check_actions.sh` and it completed successfully. - Ran `git diff --check` and it produced no issues. - Ran `CARGO_ZEROCOPY_AUTO_INSTALL_TOOLCHAIN=1 ./githooks/pre-push` to exercise the repo hooks in a non-interactive way and it completed successfully (the initial pre-push without auto-install hit local tooling prompts).
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #3423 +/- ##
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Coverage 91.85% 91.85%
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Files 20 20
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Hits 5597 5597
Misses 496 496 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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jswrenn
approved these changes
May 31, 2026
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Motivation
Description
cache-toarguments in Docker build steps with conditional expressions socache-tois omitted for external pull requests in.github/workflows/anneal.ymland.github/workflows/ci.yml.if:guards to the Docker push step and to consumer jobs (anneal_testsandverify_examples) inanneal.ymlso those steps are skipped for external pull requests that cannot push or pull GHCR writes.Testing
Codex Task