Detect QGIS installations with 'qgis_process' on Windows and macOS

Discovers existing 'qgis_process' executables on the system and returns their filepath. Only available for Windows and macOS systems. qgis_detect_paths() is a shortcut to qgis_detect_windows_paths() on Windows and qgis_detect_macos_paths() on macOS.

Usage

qgis_detect_paths(drive_letter = strsplit(R.home(), ":")[[1]][1])

qgis_detect_windows_paths(drive_letter = strsplit(R.home(), ":")[[1]][1])

qgis_detect_macos_paths()

Arguments

drive_letter: The drive letter on which to search. By default, this is the same drive letter as the R executable. Only applicable to Windows.

Value

A character vector of possible paths to the 'qgis_process' executable.

Note

These functions do not verify whether the discovered 'qgis_process' executables successfully run. You can run qgis_path(query = TRUE, quiet = FALSE) to discover and cache the first 'qgis_process' in the list that works.

Examples

if (.Platform$OS.type == "windows") {
  qgis_detect_paths()
  identical(qgis_detect_windows_paths(), qgis_detect_paths())
}
if (Sys.info()["sysname"] == "Darwin") {
  qgis_detect_paths()
  identical(qgis_detect_macos_paths(), qgis_detect_paths())
}