[R-pkg-devel] R force download of specific package versions in DESCRIPTION file

[Facundo Muñoz]

I think Packrat [1] might help:

- Isolated: ... each project its own private package library.
- Reproducible: ... exact versions are the ones that get installed ...

ƒacu.-

[1] https://rstudio.github.io/packrat/


On 05/18/2017 04:34 PM, Martin Watts wrote:
> I have created a package (which I host on a local server) that I have set
> up to depend on exact versions of other packages, i.e my DESCRIPTION file
> looks like this:
>
> Package: myPackage
> Depends:
>     R (>= 3.2.5)
> Imports:
>     dplyr (== 0.5.0),
>     lazyeval (== 0.2.0),
>     lubridate (== 1.6.0),
>     magrittr (== 1.5),
>     reshape2 (== 1.4.2)
>
>
> My expectation is that when I run install.packages('myPackage') that each
> of these specific dependency versions will be installed, but this is not
> the case. It looks like if a dependent package is not present at all then
> it is installed to the correct version, but when it is present at a LATER
> version it is not rolled-back to the desired version.
>
> Is there a way that we can force all requested versions of these packages
> to be installed? We would like this behaviour as we'd like a way to
> guarantee that all R environments are exactly the same when running this
> code.
>
> Note that I've been testing using devtools::install, but I assume that this
> mirrors the behaviour of install.packages.
> Also posted on SO: http://stackoverflow.com/questions/44028355/r-force-
> download-of-specific-package-versions-in-description-file
>
> Thanks,
> Martin
>
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