如何使R的install.packages在Dockerfile中出错？

Question

Below is a command that failed, but Docker kept going. I'm pretty sure this is because the 'warning' ("installation had non-zero exit code") wasn't passed outward as a non-zero exit code to the Rscript invocation.

How can I get this to stop the Docker build?

Step 21/44 : RUN Rscript -e 'install.packages("https://cran.rstudio.com/src/contrib/prophet_0.1.tar.gz", dependencies=TRUE)'
 ---> Running in 26ba0c1da37c
Installing package into ‘/usr/local/spark-1.6.1-bin-hadoop2.6/R/lib’
(as ‘lib’ is unspecified)
inferring 'repos = NULL' from 'pkgs'
trying URL 'https://cran.rstudio.com/src/contrib/prophet_0.1.tar.gz'
Content type 'application/x-gzip' length 75619 bytes (73 KB)
==================================================
downloaded 73 KB

ERROR: dependencies ‘extraDistr’, ‘rstan’ are not available for package ‘prophet’
* removing ‘/usr/local/spark-1.6.1-bin-hadoop2.6/R/lib/prophet’
Warning message:
In install.packages("https://cran.rstudio.com/src/contrib/prophet_0.1.tar.gz",  :
  installation of package ‘/tmp/RtmpAa2XQV/downloaded_packages/prophet_0.1.tar.gz’ had non-zero exit status

Answer 1

You can force warnings to be treated as errors (ie, immediate "stop") by setting options(warn = 2) . From ?options :

 'warn': sets the handling of warning messages.  If 'warn' is
      negative all warnings are ignored.  If 'warn' is zero (the
      default) warnings are stored until the top-level function
      returns.  If 10 or fewer warnings were signalled they will be
      printed otherwise a message saying how many were signalled.
      An object called 'last.warning' is created and can be printed
      through the function 'warnings'.  If 'warn' is one, warnings
      are printed as they occur.  If 'warn' is two or larger all
      warnings are turned into errors.