quietR is an extremely simple package that masks the print, cat and message functions to allow them to be toggled with a consistent set of functions so that you don't have to write your own verbose handling logic in your code.
The principle of this package is extremely simple. Allow console output functions to be suppressed in a simplistic way so that it isn't necessary to implement logic throughout a package. Consider the following example:
library(quietR)
# You can see all of these:
print("Hello!")
message("Oi!")
cat("¡Hola!\n")
disable_verbose()
# Now you can't see these:
print("Hi")
message("Olá!")
cat("¡Aló!\n")
enable_verbose("print")
# Outputs
print("Hi there!")
# Doesn't output
cat("I won't output")
If you need help, send me an email or create an issue. If you have a better idea for how to do this, feel free to send a pull request or create an issue.