[R-pkg-devel] Loading Libraries Outside of .lib.loc
Uwe Ligges
ligges at statistik.tu-dortmund.de
Wed Jun 28 23:36:50 CEST 2017
Just set
.libPaths("/tmp/current")
and then
library(devtools)
shoudl do the trick.
Best,
Uwe Ligges
On 28.06.2017 22:23, Bill Denney wrote:
> Hi,
>
> I'm working on a script to test my library (PKNCA) for what the minimum
> required version of its dependencies are. Specifically, I've received
> bug reports when people are using versions of dplyr < 0.5.0.
>
> To test my package against old versions of libraries, I'm installing old
> versions of packages in separate directories with:
>
>> dir.create("/tmp/current", recursive=TRUE)
>> install.packages("devtools", lib="/tmp/current")
>
> I then try to load the devtools library that I've just installed, and I
> get an error:
>
>> library(devtools, lib.loc="/tmp/current")
> Error: package or namespace load failed for ‘devtools’:
> .onLoad failed in loadNamespace() for 'devtools', details:
> call: loadNamespace(name)
> error: there is no package called ‘withr’
>
> I would have assumed that lib.loc would cause R to search within the
> directory I just created for the dependencies, too. But it doesn't
> appear to do so:
>
>> library(withr, lib.loc="/tmp/current")
>>
>
> (no error)
>
> Is this intended behavior or a bug? If intended behavior, I can
> manipulate .lib.loc through something like:
>
> assign(".lib.loc", envir=environment(.libPaths),
> c("/tmp/current", "/usr/local/lib/R/site-library",
> "/usr/lib/R/site-library", "/usr/lib/R/library"))
>
> Thanks,
>
> Bill
>
> P.S. Apologies if this would better fit on a more general mailing list,
> but the only reason I'm bashing at library and install.packages is
> related to package development and testing.
>
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