Ask Yes/No Questions via the console

This function allows you to interact with a user by posing yes/no questions. It's inspired by usethis::ui_yeah(), allowing for you to specify code that will be executed upon a user responding "yes" or "no."

cl_yes_no_action(
  prompt,
  yes_action,
  yes_message,
  no_action = invisible(),
  no_message,
  yes_opts = c("Yes", "Duh!", "Absolutely", "Please", "Obvi, yeah."),
  no_opts = c("No", "Nah", "Not now", "Not today", "No, thanks."),
  n_yes = 1,
  n_no = 2,
  shuffle = TRUE,
  .envir = parent.frame(1)
)

Arguments

prompt	A character string with the yes/no question to be asked. Passed into cli::cli_text() and can use its theming syntax. If you wish to supply no prompt, pass in an empty character string: "".
yes_action	Code to execute upon a "yes" answer.
yes_message	(Optional) message to display upon a "yes" answer. Passed into cli::cli_alert_success() and can use its theming syntax.
no_action	Code to execute upon a "no" answer. Default is invisible(), i.e. do nothing.
no_message	(Optional) message to display upon a "yes" answer. Passed into cli::cli_alert_danger() and can use its theming syntax.
yes_opts	A character vector of "yes" strings, randomly sampled to display to the user.
no_opts	A character vector of "no" strings, randomly sampled to display to the user.
n_yes	An integer defining how many "yes" strings to include when asking the user a question. Default is 1.
n_no	An integer defining how many "no" strings to include when asking the user a question. Default is 2.
shuffle	Logical: TRUE by default. Should the order of the yes/no options be shuffled before being presented to the user?
.envir	Used to ensure that cli::cli_text() evaluates the prompt, yes_message, and no_message in the appropriate environment. Expert use only.

Value

NA; used to execute specified code depending on a user's response.

Details

To ask yes/no questions and return a logical value, please see cl_yes_no_lgl.

See also

Other command-line-tools: cl_text_action(), cl_text_input(), cl_yes_no_lgl()

Examples

if (interactive()) {

  # define a function to create a directory with approval.
  yn_create_dir <- function(path) {
    path <- here::here(path)
    cl_yes_no_action(prompt = "The directory {.file {path}} does not exist.
    Would you like to create it?",
           yes_action = fs::dir_create(path),
           yes_message = "Okay, creating {.file {path}}.",
           no_message ="Okay, not creating {.file {path}}.")
  }

  # Test the function
  yn_create_dir("new-folder")

  # Ask a simple yes/no question that prints a conditional response
  cl_yes_no_action(prompt = "Do you love sushi?",
         yes_action = print("I'm not surprised, it's great!"),
         no_action = print("Hmmm...have you tried it?"))

  # Simple yes/no with content-related yes/no options
  cl_yes_no_action(prompt = "Is your favorite cat Tucker?",
         yes_action = print("Correct answer!"),
         no_action = print("Wrong answer..."),
         yes_opts = "Duh, he's the cutest",
         no_opts = c("I'm a dog person", "I'm allergic to cats"))

  # Add some color (indicating the correct answer in this case)
  cl_yes_no_action(prompt = "Is your favorite cat Tucker?",
         yes_action = print("Correct answer!"),
         no_action = print("Wrong answer..."),
         yes_opts = crayon::green("Duh, he's the cutest"),
         no_opts = c("I'm a dog person", "I'm allergic to cats"))


  # Conduct multiple actions like a normal R script upon a "yes" (no would work similarly)
  path <- here::here("another-test-folder")
  cl_yes_no_action(prompt = "The directory {.file {path}} does not exist.
  Would you like to create it?",
         yes_action = {
           # create path
           fs::dir_create(path)
           # indicate path was created
           cli::cli_alert_success("Created directory at {.file {path}}")
           # assign saved_path as path
           saved_path <- path
           # print a random letter just because we can!
           print(sample(letters,1))
         },
         no_message ="The directory {.file {path}} was not created."
         )
}