1. You should never install packages without asking the user.
2. a package should never write to the user file space or default
libraries unless the user akss for it explicitly.
In tests, use tempdir().
3. You cannot expect that the library is writeable. It is not in many
network installations.
Best,
Uwe Ligges
On 18.03.2019 16:48, brodie gaslam via R-package-devel wrote:
Subject:
Installing "Additional" Packages During Tests
From:
brodie gaslam <brodie.gas...@yahoo.com>
Date:
18.03.2019, 16:48
To:
List R-package-devel <r-package-devel@r-project.org>
To:
List R-package-devel <r-package-devel@r-project.org>
Sorry, previous e-mail got pre-maturely sent due to fat finger...
My package unitizer[1] has recently gained the following type of error:
Warning in install.packages(pkg, repos = NULL, type = "src") : 'lib =
"/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages"' is not writable
Error in install.packages(pkg, repos = NULL, type = "src") :
unable to install packages
While I did recently update the package to resolve the RNGversion issue, this
problem seems unrelated as some of the CRAN machines produce it, and some
don't, on the same package version.
The tests install some dummy packages with `install.packages`, and this has
worked for a long time, but no longer, presumably due to changes in permissions
of the test running daemon. The packages are removed on.exit. The packages
are used for integration tests as unitizer is a package-testing-package and it
is useful to be able to test functionality that includes use on actual packages
that change.
Should I expect this to be the new normal, where I will be henceforth
disallowed from installing packages temporarily? Will there be an acceptable
workaround (e.g. setting up a temporary library in a tempdir and try to
`install.packages` into that; I admit I have no familiarity with this other
than the vague awareness maybe this could be done)?
FWIW, perhaps an indication that this is something I shouldn't be doing came up earlier
in the year when I had to resort to temporarily unsetting "R_TESTS" as per [2].
Thanks in advance for any input.
Best,
Brodie.
[1]: https://cran.r-project.org/web/checks/check_results_unitizer.html[2]:
https://github.com/r-lib/testthat/issues/144
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