Manage temporary files

These functions create temporary files that can be used in calls to qgis_run_algorithm() or elsewhere. These files are created in a special temporary directory (qgis_tmp_base()) that should be periodically cleaned up using qgis_clean_tmp(). You can set your preferred vector and/or raster file extension using options(qgisprocess.tmp_vector_ext = "...") and/or options(qgisprocess.tmp_raster_ext = "..."), respectively.

Usage

qgis_tmp_file(ext)

qgis_tmp_folder()

qgis_tmp_vector(ext = getOption("qgisprocess.tmp_vector_ext", ".gpkg"))

qgis_tmp_raster(ext = getOption("qgisprocess.tmp_raster_ext", ".tif"))

qgis_tmp_base()

qgis_clean_tmp()

Arguments

ext

The file extension to be used.

Value

A character vector indicating the location of a (not yet created) temporary file.

See also

Other topics about programming or debugging utilities: qgis_result_status(), qgis_run(), qgis_unconfigure(), qgis_using_json_input()

Examples

qgis_tmp_base()
#> [1] "/tmp/Rtmp7nb1k0/file2b044d88ac6c"
qgis_tmp_file(".csv")
#> [1] "/tmp/Rtmp7nb1k0/file2b044d88ac6c/file2b0418aea70b.csv"
qgis_tmp_vector()
#> [1] "/tmp/Rtmp7nb1k0/file2b044d88ac6c/file2b0471619b70.gpkg"
qgis_tmp_raster()
#> [1] "/tmp/Rtmp7nb1k0/file2b044d88ac6c/file2b0469917c8a.tif"