Check Files Exist

Checks if all files exist (or if exists = FALSE do not exist as files or directories).

Usage

check_files(x, exists = TRUE, x_name = NULL)

Arguments

x

The object to check.

exists

A flag specifying whether the files/directories must (or must not) exist.

x_name

A string of the name of object x or NULL.

Value

An informative error if the test fails or an invisible copy of x.

See also

Other check: check_data(), check_dim(), check_dirs(), check_key(), check_names(), check_values()

Examples

check_files(tempfile("unlikely-that-exists-chk"), exists = FALSE)
try(check_files(tempfile("unlikely-that-exists-chk")))
#> Error in eval(expr, envir, enclos) : 
#>   `tempfile("unlikely-that-exists-chk")` must specify existing files ('/tmp/RtmpvBqZFZ/unlikely-that-exists-chk17fafc01c3d' can't be found).