- exclude
void exclude(const(char)[] path)
 - exec
void exec(const(char)[] cmd)
 - exec
void exec(const(char[])[] cmd, const(char[])[char[]] env, const(char)[] workDir)
 - include
void include(const(char)[] path)
 - scan
FilePath[] scan(const(char)[] suffix)
 - sweep
FilePath[] sweep(FilePath root)