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let mut pristine_dir = cur.clone();
pristine_dir.push(PRISTINE_DIR);
let mut changes_dir = cur.clone();
changes_dir.push(CHANGES_DIR);
let mut working_copy_dir = cur.clone();
working_copy_dir.pop();
let pristine_dir = cur.join(PRISTINE_DIR);
let changes_dir = cur.join(CHANGES_DIR);
let working_copy_dir = cur.parent().unwrap();