[Rd] Exit status of Rscript

[Simon Urbanek]

> system2("Rscript", c("-e", shQuote("stop('foo')"))) == 0
Error: foo
Execution halted
[1] FALSE
> sessionInfo()
R version 3.5.2 (2018-12-20)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: OS X El Capitan 10.11.6

> system2("Rscript", c("-e", shQuote("stop('foo')"))) == 0
Error: foo
Execution halted
[1] FALSE
> sessionInfo()
R Under development (unstable) (2019-02-27 r76167)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: OS X El Capitan 10.11.6

You may also want to check that you run what you think you do in the shell:

$ Rscript -e 'print(R.version.string); stop("foo")'; echo $?
[1] "R Under development (unstable) (2019-02-27 r76167)"
Error: foo
Execution halted
1

$ Rscript -e 'print(R.version.string); stop("foo")'; echo $?
[1] "R version 3.5.2 (2018-12-20)"
Error: foo
Execution halted
1

$ Rscript -e 'print(R.version.string); stop("foo")'; echo $?
[1] "R version 3.4.4 Patched (2018-03-19 r75535)"
Error: foo
Execution halted
1


> On Feb 28, 2019, at 7:23 AM, Michel Lang <michellang using gmail.com> wrote:
> 
> Current R release (3.5.2) and devel return a 0 exit status on error,
> while prior versions returned a non-zero exit status. On Linux and
> MacOs, the following line returns TRUE for R-3.5.2 and R-devel, and
> FALSE for R-3.5.1 and R-3.5.0:
> 
> system2("Rscript", c("-e", shQuote("stop('foo')"))) == 0
> 
> I didn't find this in the NEWS, so I believe this is a bug.
> 
> Best,
> Michel
> 
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