[R-pkg-devel] Saving output of check()

[J C Nash]

Another workaround is to use

tlogl <- readLines(attr(cpkg.chk, "path"))

Possibly this may suggest a way to improve functionality.

JN

On 2018-04-11 03:24 PM, Henrik Bengtsson wrote:
> R CMD check, which is used internally runs checks in standalone
> background R processes.  Output from these is not capturable/sinkable
> by the master R process.  The gist of what's happening is:
> 
>> sink("output.log")
>> system("echo hello")  ## not sinked/captured
> hello
>> sink()
>> readLines("output.log")
> character(0)
> 
> /Henrik
> 
> On Wed, Apr 11, 2018 at 11:05 AM, J C Nash <profjcnash at gmail.com> wrote:
>> Hi,
>>
>> In trying to test that an upgrade to my optimx package does not break other
>> packages, I wanted to loop over a list of all such packages in alldep, with
>> nall the length of this list.
>>
>> cat("Check the dependent packages\n")
>> for (ii in 1:nall){
>>   cpkg <- alldep[ii]
>>   dd <- "/home/john/temp/wrkopt/dlpkg"
>>   dlname <- download.packages(cpkg, destdir=dd )[[2]]
>>   cat("Downloaded ", dlname,"\n")
>>   cpkg.chk <- devtools::check_built(dlname)
>>   cat("Results package:",cpkg,"\n")
>>   print(cpkg.chk)
>> }
>>
>> Before running this, I did
>>
>> sink("dpkgcheck.txt", split=TRUE)
>>
>> and afterwards, I did sink().
>>
>> But ... none of the check output, nor the result of the final print, show
>> up in the output file dpkgcheck.txt.
>>
>> Have I totally misunderstood sink(), or is there a nasty bug?
>>
>> I've tried running in Rstudio and in the terminal. I'm running Linux Mint
>> 18.3 Sylvia.
>>
>> Linux john-j6-18 4.10.0-38-generic #42~16.04.1-Ubuntu SMP Tue Oct 10 16:32:20 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
>> john at john-j6-18 ~ $ R
>>
>> R version 3.4.4 (2018-03-15) -- "Someone to Lean On"
>>
>>
>> J C Nash
>>
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