[R-pkg-devel] dependency cycle

[Berry Boessenkool]

Hi,

I have a package A. Some of its functions are used in package B.

B imports A in the DESCRIPTION, both are on CRAN.

A has a function fff where I want to add some optional functionality.

The problem: that optional stuff uses code in package B.


I feel like I have two bad options:

- put fff in a package C that imports both A and B.
However, C would really be too small to be on CRAN.
Also, some people already know of A::fff and I'm rather inclined to keep it there.

- put B in Suggests and make the optional part of fff conditional on requireNamespace("B").

But then B imports A while A suggests B, which sounds dangerous.


Any ideas on what I could/should do here?

Thanks ahead,

Berry


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