Return all the paths to the tutorials in a package

Takes a package name and returns a character vector of all the paths to tutorials in the installed package. This function looks for all R Markdown files (.Rmd) in the inst/tutorials/ subdirectories of the specified package. It uses learnr::available_tutorials() to identify tutorial directories, with a fallback to directory scanning if that fails.

Usage

return_tutorial_paths(package)

Arguments

package

Character string of the package name to be tested.

Value

Character vector of the full paths to all installed tutorials in package. Returns character(0) if no tutorials are found or if the package doesn't exist.

Details

The function first checks if the package is installed and has a tutorials directory. It then attempts to use learnr::available_tutorials() to get the official list of tutorial directories. If that fails (e.g., if the package doesn't properly register its tutorials with learnr), it falls back to scanning all subdirectories under inst/tutorials/. Finally, it collects all .Rmd files from these directories.

Returns an empty character vector if the package has no tutorials or doesn't exist, rather than throwing an error.

Examples

if (FALSE) { # \dontrun{
  # Get all learnr tutorial paths
  return_tutorial_paths('learnr')
  
  # Get tutorial paths from your own package
  return_tutorial_paths('tutorial.helpers')
  
  # Returns empty vector for packages without tutorials
  return_tutorial_paths('base')
} # }