prevent "NULL" user libpaths

In R CMD check for R >= 4.2, the environment variable R_LIBS_USER somehow gets set to the character NULL. This is a bandaid for this. See rstudio#1161 (comment)
zkamvar · Mar 9, 2023 · c11687d · c11687d
1 parent 31ae17a
commit c11687d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/R/libpaths.R b/R/libpaths.R
@@ -147,7 +147,7 @@ renv_libpaths_user <- function() {
   for (envvar in envvars) {
 
     value <- Sys.getenv(envvar, unset = NA)
-    if (is.na(value) || value == "<NA>" || !nzchar(value))
+    if (is.na(value) || value == "<NA>" || value == "NULL" || !nzchar(value))
       next
 
     parts <- strsplit(value, .Platform$path.sep, fixed = TRUE)[[1]]