R CMD检查pkg-离线

Question

Any way to prevent check process trying to connect to network?
Something like --offline argument to R CMD check .

* checking CRAN incoming feasibility ...Warning: unable to access index for repository http://CRAN.R-project.org/src/contrib
Warning: unable to access index for repository http://bioconductor.org/packages/3.1/bioc/src/contrib
Warning: unable to access index for repository http://bioconductor.org/packages/3.1/data/annotation/src/contrib
Warning: unable to access index for repository http://bioconductor.org/packages/3.1/data/experiment/src/contrib
Warning in url(sprintf("%s/src/contrib/PACKAGES.gz", u), "rb") :
  unable to resolve 'CRAN.R-project.org'
NB: need Internet access to use CRAN incoming checks

R CMD check --help does not list such feature.

Answer 1

You can remove the --as-cran option, since checking the CRAN incoming feasibility only happens when that option is turned on.

Otherwise there is no way to disable it, since the CRAN check requires verifying the existing CRAN status with respect to some things with packages or your package. See the section Checking CRAN incoming feasibility in http://r-pkgs.had.co.nz/check.html for details.

Answer 2

In the recent R version 3.4.0 it is possible as described in NEWS file:

Running R CMD check --as-cran with _R_CHECK_CRAN_INCOMING_REMOTE_ false now skips tests that require remote access. The remaining (local) tests typically run quickly compared to the remote tests.