download_source


This function tries to download a source package from CRAN for at most 5
times, and if the RStudio mirror fails, the main CRAN site will be used.


For a given R package ready for release, all its reverse
dependencies are downloaded from CRAN and checked on Travis CI, to make
sure the current development version of this package does not break
packages that depend on it. For packages with a lot of reverse
dependencies, they can be divided into groups, with each group checked on a
separate Travis virtual machine to avoid Travis timeout. Additional system
dependencies (Ubuntu) can be manually specified in a configuration file.

download_source: Download a source package from CRAN

Description

Usage

Arguments