R devel - Aug 2018 - Slightly misleading help page: tools::add_datalist

Hi,

I was looking at the help page for add_datalist() and it states under
Details:

"R CMD build will call this function to add a data list to packages with
1MB or more of data."

This is correct, however, what is omitted from the help page is that
add_datalist() will *only* create the datalist file on packages with 1MB or
more of data, as in the function we have

if (size <= 1024^2) return()

As an aside what's the reason for the 1MB limit?

Thanks

Colin

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