Module files 

Functions

check_file

Check if a file needs formatting. Returns None if already formatted, or Some(unified_diff) if changes are needed.

format_file

Format a file on disk, returning the formatted text. Auto-detects format from the file extension.

format_file_with

Format a file with extra abbreviations from a project config.

format_in_place

Format a file in-place. Returns true if the file was changed.