[R] Testing for R CMD INSTALL

[Andrew Simmons]

Hello,


I was wondering if anyone has a way to test if a package is currently being
installed. My solution was to check if environment variable "R_INSTALL_PKG"
was unset, something like:

"R CMD INSTALL-ing" <- function ()
!is.na(Sys.getenv("R_INSTALL_PKG", NA))

Unfortunately, I couldn't find what I was looking for with ?"environment
variables". So if anyone has any better methods, I'd be happy to hear them,
thank you!

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