Probes the common system locations for PROJ proj.db and
GDAL data directories, on macOS Homebrew (Apple silicon and
Intel), Linuxbrew, conda / mamba environments, and Debian /
Ubuntu / Fedora apt or dnf installs. Sets the corresponding
environment variables only when they are not already set, so a
user-provided value always wins. Idempotent: safe to call
repeatedly.
Usage
auto_set_proj_env(verbose = FALSE)
Arguments
- verbose
If TRUE, emits a cli message
confirming what was detected.
Value
Invisibly, a named list with PROJ_LIB and
GDAL_DATA (the values that were set, or
NA_character_ if a value was already present
or no candidate was found).
Details
Called automatically from .onLoad; call manually after
installing PROJ / GDAL via Homebrew if you want to refresh the
env without restarting R.
