Check File Exists

Source: R/chk-file.R

Checks if file exists using

vld_string(x) && file.exists(x) && !dir.exists(x)

chk_file(x, x_name = NULL)

vld_file(x)

Arguments

x

The object to check.

x_name

A string of the name of object x or NULL.

Value

The chk_ function throws an informative error if the test fails or returns the original object if successful so it can used in pipes.

The vld_ function returns a flag indicating whether the test was met.

Functions

  • vld_file(): Validate File Exists

See also

vld_string()

file.exists()

dir.exists()

For more details about the use of this function, please read the article vignette("chk-families").

Other file_checkers: chk_dir(), chk_ext()

Examples

# chk_file
try(chk_file(tempfile()))
#> Error in eval(expr, envir) : 
#>   `tempfile()` must specify an existing file ('/tmp/RtmpnG4Dmq/filebbb76fa2c66e' can't be found).
# vld_file
vld_file(tempfile())
#> [1] FALSE