using_nix_shell() checks whether code is running within an
environment defined by a Nix expression.
Usage
using_nix_shell(pure = NULL)
Arguments
- pure
Whether or not the environment is pure, meaning most environment
variables have been cleared before the shell started.
Examples
# Check for Nix
using_nix_shell()
#> [1] FALSE
# Check for Nix in a pure environment
using_nix_shell(pure = TRUE)
#> [1] FALSE