This action sets up an R environment for use in actions by:
- Downloading and caching a version of R by version and adding to PATH
- Registering problem matchers for error output
- Setting the following environment variables
NOT_CRAN=true
TZ=UTC
R_LIBS_USER=tempdir/Library
_R_CHECK_SYSTEM_CLOCK_=FALSE
- Removing the
-fopenmp
flags from Makeconf on macOS, which are not supported with Apple’s default Command Line Tools compilers. - Appending ‘on GitHub Actions’ to the default HTTP user agent. This is useful to distinguish GitHub Actions package requests from other sources.
- Supplying the installed R version as a
installed-r-version
output.
- r-version (
'release'
) - Version range or exact version of an R version to use. - rtools-version (
''
) - Exact version of Rtools to use. Default uses latest suitable rtools for the given version of R. - Ncpus (
'1'
) - Value to set the R optionNcpus
to. - crayon.enabled (
'NULL'
) - Value to set the R optioncrayon.enabled
to. - remove-openmp-macos (
true
) - If true, remove-fopenmp
from the default compilation flags, e.g.SHLIB_OPENMP_CFLAGS
, as the macOS Command Line Tools do not support OpenMP. - http-user-agent (
'default'
) - If"default"
or""
, sets the HTTPUserAgent option to e.g. for R 3.6.3 running on macOS Catalina,"R/3.6.3 R (3.6.3 x86_64-apple-darwin17.0 x86_64 darwin17.0) on GitHub Actions"
. If"release"
sets the user agent to the default user agent for the current R release. Otherwise uses whatever value is passed tohttp-user-agent
. - install-r (
true
) - If “true” download and install R during the setup. If “false” use the existing installation in the GitHub Action image. - windows-path-include-mingw (
true
) - If “true” put the 64 bit mingw directory from Rtools on the PATH for Windows builds. - update-rtools (
false
) - Update rtools40 compilers and libraries to the latest builds. - use-public-rspm (
false
) - Use the public version of RStudio package manager available at https://packagemanager.rstudio.com/ to serve binaries for Linux and Windows. - extra-repositories (
''
) - One or more extra CRAN-like repositories to include in therepos
global option
- installed-r-version - The full R version installed by the action
Basic:
steps:
- uses: actions/checkout@master
- uses: r-lib/actions/setup-r@v1
with:
r-version: '3.5.3' # The R version to download (if necessary) and use.
- run: Rscript -e 'print("hello")'
Matrix Testing:
jobs:
build:
runs-on: ubuntu-18.04
strategy:
matrix:
R: [ '3.5.3', '3.6.1' ]
name: R ${{ matrix.R }} sample
steps:
- uses: actions/checkout@master
- name: Setup R
uses: r-lib/actions/setup-r@v1
with:
r-version: ${{ matrix.R }}
- run: Rscript -e 'print("hello")'
The scripts and documentation in this project are released under the MIT License
Contributions are welcome!