Run Code in a Temporary Sandbox Environment — with_extr

This function creates a temporary directory and sets it as R_USER_CACHE_DIR before executing the provided code block. It is used for testing or running code without affecting the user's default cache directory as required by CRAN for the examples . This function is not designed to be used by package users. Shamelessly "inspired" by some @luciorq code.

Usage

with_extr_sandbox(code, temp_dir = tempdir())

Arguments

code: The code to be executed inside the sandbox. Should be an expression.
temp_dir: A temporary directory created using temdir().

Value

The result of the executed code.

Examples

with_extr_sandbox(Sys.getenv("R_USER_CACHE_DIR"))
#> [1] "/var/folders/bp/fpwcfq1563l21rz5gdcsfcsw0000gn/T//RtmpBHtujD"
with_extr_sandbox(tools::R_user_dir("extractox", "cache"))
#> [1] "/var/folders/bp/fpwcfq1563l21rz5gdcsfcsw0000gn/T//RtmpBHtujD/R/extractox"