Duplicate Files

gistfile1.txt

Write a function that identifies sets of files with identical contents.

    find_dupes(root_path) → sets/lists of file paths that have identical contents

    find_dupes(“/home/whatever”) → [
        [".bashrc", "Backups/2017_bashrc"],
        ["Photos/Vacation/DSC1234.JPG", "profile.jpeg", ".trash/lej2dp28/87msnlgyr"],
    ]

Context:
- Imagine this function being packaged up into a command-line tool and people running it on their laptops or servers.
- For scale, imagine hard drives with at most 2 TB of data and at most 1 million files.

For traversing the filesystem, use these library functions:
- list_folder(path) → list of immediate file and folder children
- is_folder(path) → boolean