Set the VRT cache directory

Set the VRT cache directory

Destroy the VRT cache directory

Usage

vrt_cache_set(dir)

vrt_cache_destroy()

Arguments

dir

A character string of the directory to set as the cache

Value

A character string of the directory (invisibly)

Details

The default cache location is tempdir(). This function allows you to set the cache location to a different directory. It is mainly useful if you intend to work with parallel processing. vrtility depends on saving many vrt files to disk and passing these files between processes fails when using a temporary directory.

A helper function that will destroy the VRT cache directory. This is useful if you want to clear the cache directory and start fresh. If the cache directory is set to tempdir() then the function will warn you that this is a bad idea and will not proceed.