Is the system clipboard available? — clipr

Checks to see if the system clipboard is write-able/read-able. This may be useful if you are developing a package that relies on clipr and need to ensure that it will skip tests on machines (e.g. CRAN, Travis) where the system clipboard may not be available.

Usage

clipr_available(...)

dr_clipr(...)

Arguments

...: Pass other options to write_clip(). Generally only used to pass the argument allow_non_interactive_use = TRUE.

Value

clipr_available returns a boolean value. Prints an informative message to the console with software and system configuration requirements if clipr is not available (invisibly returns the same string)

Note

This will automatically return FALSE, without even performing the check, if you are running in a non-interactive session. If you must call this non-interactively, be sure to call using clipr_available(allow_non_interactive = TRUE), or by setting the environment variable CLIPR_ALLOW=TRUE. Do not attempt to run clipr non-interactively on CRAN; this will result in a failed build!

Examples

if (FALSE) {
# When using testthat:
library(testthat)
skip_if_not(clipr_available())
}