R: Check that file(s) exist, error if not

cmd_error_if_missing

R Documentation

Check that file(s) exist, error if not

Description

Check that file(s) exist, error if not

Usage

cmd_error_if_missing(files)

Arguments

files

list or vector of paths to check

Value

nothing or error message for each missing file

Examples

cmd_error_if_missing(tempdir())
## Not run: 
# Throws error if file doesn't exist
cmd_error_if_missing(file.path(tempdir(), "notreal"))

## End(Not run)