В Thu, 31 Aug 2023 14:59:07 +0000
Christophe Bousquet <chr_bousq...@protonmail.com> пишет:
> So I get no output for tools::Rcmd('SHLIB --version').
>
> I tried to run tools::Rcmd('SHLIB --help') or tools::Rcmd('check
> --help'), but no output neither.
>
> I had more success with tools::Rcmd('BATCH --help'):
The job of Rcmd.exe is to figure out where it's located and pass the
correct arguments to Rterm.exe (or some of the few other executables).
In a few cases (like `R CMD BATCH --help` or just `R CMD` without
arguments) it understands enough to produce the output by itself, which
you see. In most other cases (`SHLIB` or `check` with any arguments), it
constructs the command line to launch "${R_HOME}/bin/x64/Rterm.exe" -e
<something> and forwards the command line arguments there. For some
reason, the command line fails to produce any output.
Is there a "C:\Program Files\R\R-4.3.1\bin\x64\Rterm.exe"? If you
launch it, does it present an R command line?
I'm suspecting that Rcmd.exe somehow messes up when it tries to locate
Rterm.exe to launch it. Here's one way to see what happens:
1. Download Sysinternals Process Monitor, a free monitoring utility,
from the Microsoft website and launch it (no installation needed):
https://learn.microsoft.com/en-us/sysinternals/downloads/procmon
2. Set up the filter so that so that entries are included
- Process name is "Rcmd.exe"
- Operation is "Process Create"
3. Run tools::Rcmd('SHLIB --help') (or any other Rcmd invocation that
fails to produce any output for you)
4. You should get one event of Rcmd.exe trying to launch cmd.exe with a
long command line. What is the command line?
--
Best regards,
Ivan
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