Day 21: rhub - Multi-Platform Testing
Test your package on multiple platforms before CRAN submission.
Resources: https://r-hub.github.io/rhub/
1/ CRAN Tests Everywhere: Windows, macOS, Linux, multiple flavors. Your package must work on all. rhub lets you test before submission.
2/ Run CRAN Checks:
rhub::check_for_cran()
Tests on Debian, Windows, Fedora. Same platforms CRAN uses. Catch platform-specific issues early.
3/ Platform-Specific:
rhub::check_on_windows()
rhub::check_on_macos()
rhub::check(platform = "debian-clang-devel")
Target specific platforms where you expect issues.
4/ Before Submission: Run rhub + GitHub Actions. If both pass, CRAN will likely accept. Confidence before submission reduces stress.
5/ The Bottom Line: CRAN rejection wastes weeks. rhub finds platform issues in hours. Test thoroughly, submit confidently.
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