R CMD check options for "more rigorous testing" - 2.15.0

Question

According to the release notes for 2.15:

There are new options for more rigorous testing by R CMD check selected by environment variables – see the ‘Writing R Extensions’ manual.

1. Is "more rigorous" relative to the default set of checks?
2. I can't find the supporting text in the manual. I'm sure I'm just missing it
3. What options do I specify to perform the MOST rigorous testing?

Answer 1

Try R CMD check --as-cran foo_1.2-3.tar.gz

The new --as-cran option gathers a few of these together; this was discussed on r-devel.

Also, a few weeks before R 2.15.0 came out, I added this to ~/.R/check.Renviron. These are documented in the 'R Internals' manual:

# See R Internals manual
_R_CHECK_CRAN_INCOMING_=TRUE
_R_CHECK_FORCE_SUGGESTS_=FALSE
_R_CHECK_VC_DIRS_=TRUE
_R_CHECK_UNSAFE_CALLS_=TRUE
_R_CHECK_TIMINGS_=10
_R_CHECK_INSTALL_DEPENDS_=TRUE
_R_CHECK_SUGGESTS_ONLY_=TRUE
_R_CHECK_NO_RECOMMENDED_=TRUE
_R_CHECK_SUBDIRS_NOCASE_=TRUE
_R_CHECK_EXECUTABLES_EXCLUSIONS_=FALSE
_R_CHECK_LICENSE_=TRUE
_R_CHECK_DOC_SIZES2_=TRUE
_R_CHECK_CODETOOLS_PROFILE_='suppressPartialMatchArgs=false'
#
_R_CHECK_VIGNETTES_NLINES_=50
_R_CHECK_DOT_INTERNAL_=TRUE