A file should be represented by its absolute path, but currently this is not enforced.
val to_string : t -> stringval make : string -> tBuild a file representation from a path (absolute or relative)
val exists : t -> boolval is_directory : t -> boolval remove_exn : t -> unitremove_exn path tries to remove the file at path from the file system.
Raises Sys_error if there is no file at path.
val remove_noerr : t -> unitLike remove_exn but do not raise any exception on failure.
read_dir d returns a sequence of files and directory contained in the directory d (or an empty stream if d is not a directory)
if true (default false), sub-directories are also explored
val read_exn : t -> stringRead the content of the given file, or raises some exception
val append_exn : t -> string -> unitAppend the given string into the given file, possibly raising
val write_exn : t -> string -> unitWrite the given string into the given file, possibly raising
type walk_item = [ `File | `Dir ] * tSimilar to read_dir (with recurse=true), this function walks a directory recursively and yields either files or directories. Is a file anything that doesn't satisfy is_directory (including symlinks, etc.)
val show_walk_item : walk_item -> stringwith_temp ~prefix ~suffix f will call f with the name of a new temporary file (located in temp_dir). After f returns, the file is deleted. Best to be used in combination with with_out. See Filename.temp_file