[R-pkg-devel] Removing packages files

[Vladimir Dergachev]

Hi Lluís,

   Just wanted to add to the discussion that it would be good to consider 
users that are disconnected or behind a firewall and are installing the 
package from file.

   An option to point the package to a separately downloaded file would be
useful.

best

Vladimir Dergachev

On Thu, 2 Jan 2025, Lluís Revilla wrote:

> Hi list,
>
> I am developing a package that will download some data, and I'd like
> to store it locally to not recalculate it often.
> The CRAN policy requires tools::R_user_dir to be used and "the
> contents are actively managed (including removing outdated material)"
> or using TMPDIR but "such usage should be cleaned up".
>
> When loading a package there is .onLoad or .onAttach to fill or check
> those files and other settings required for a package. Is there
> something for when a package is removed?
>
> I found some related functions like .Last or reg.fnalizer and setHook
> or packageEvent but they are about closing a session or don't have a
> specific event for when uninstalling packages via (remove.packages). I
> appreciate any feedback, thanks in advance.
>
> Best wishes and a happy new year,
>
> Lluís
>
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