package ez_file

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File operations with filenames represented by an abstract type FileGen.t

type t
val concat : t -> t -> t
val is_absolute : t -> bool
val is_relative : t -> bool
val is_implicit : t -> bool
val add_suffix : t -> string -> t
val check_suffix : t -> string -> bool
val cut_extension : t -> string * string
val cut_extensions : t -> string * string list
val basename : t -> string
val dirname : t -> t
val add_path : t -> string -> t
val add_basename : t -> string -> t
val add_basenames : t -> string list -> t
val current_dir_name : t
val open_in : t -> Stdlib.in_channel
val open_out : t -> Stdlib.out_channel
val open_in_bin : t -> Stdlib.in_channel
val open_out_bin : t -> Stdlib.out_channel
val temp_file : t -> string -> t
val with_in : t -> (Stdlib.in_channel -> unit) -> unit
val with_in_bin : t -> (Stdlib.in_channel -> unit) -> unit
val with_out : t -> (Stdlib.out_channel -> unit) -> unit
val with_out_bin : t -> (Stdlib.out_channel -> unit) -> unit
val exists : t -> bool
val getcwd : unit -> t
val size : t -> int
val is_directory : t -> bool
val remove : t -> unit
val rename : t -> t -> unit
val stat : t -> MinUnix.stats
val lstat : t -> MinUnix.stats
module OP : sig ... end
val copy_rec : t -> t -> unit
val uncopy_rec : t -> t -> unit
val find_in_path : string list -> string -> t

find_in_path path filename searches a file in a list of directories.

include FileSig.CONTENT_OPERATIONS with type in_file := t and type out_file := t
val read_file : t -> string

read_file file returns the full content of file. If the file is opened, it is opened in binary mode, no conversion is applied.

val write_file : t -> string -> unit

write_file file content creates file file with content content. If the file is opened, it is opened in binary mode, no conversion is applied.

val read_subfile : t -> int -> int -> string

read_subfile file pos len returns a string containing len bytes read from file file at pos pos. If the file is opened, it is opened in binary mode. Raises End_of_file if the file is too short.

val read_lines : t -> string array

read_lines file returns the content of file as an array of lines. If the file is opened, it is opened in text mode.

val read_lines_to_list : t -> string list

read_lines_to_list file returns the content of file as a list of lines. If the file is opened, it is opened in text mode.

val write_lines : t -> string array -> unit

write_lines file lines creates the file file from an array of lines, using FileChannel.output_line for each line.

val write_lines_of_list : t -> string list -> unit

write_lines file lines creates the file file from a list of lines, using FileChannel.output_line for each line.

val read_sublines : t -> int -> int -> string array

read_sublines file pos len returns at most len lines of the file file, starting at line pos. It differs from read_subfile in that it will not raise any exception if the file is too short. Note that it reads the file from beginning everytimes.

val read_sublines_to_list : t -> int -> int -> string list

Same as read_sublines, but returns a list of strings.

val iter_blocks : (EzCompat.Bytes.t -> int -> unit) -> t -> unit

iter_blocks f file reads the content of file file, and calls f buffer len on each chunk. The buffer is reused, and only the first len bytes are from the file. Chunks have a maximal size of 32768.

val iter_lines : (string -> unit) -> t -> unit

iter_lines f file calls f line on all the lines line of the file file.

val iteri_lines : (int -> string -> unit) -> t -> unit

iteri_lines f file calls f line_num line on every line line of the file file, with line_num the line number, starting with line 0.

val copy_file : t -> t -> unit

copy_file src dst copy all the content remaining in file src to file dst.

include FileSig.DIRECTORY_OPERATIONS with type t := t
type selector

Type of the value used to create filters when iterating on files and directories.

exception NotADirectory of t

This exception is raised when one of the following functions is called with a non-directory argument

val make_dir : ?mode:int -> ?p:bool -> t -> unit

make_dir ?mode ?p filename creates a directory filename, if it does not already exist. It fails with NotADirectory if the file already exists, but is not a directory. The mode argument is the Unix permissions (0o755 by default). The p argument controls whether parents directories should be created as well, if they don't exist, instead of failing.

val onedir : selector
val recdir : selector
val remove_dir : ?all:bool -> ?glob:string -> t -> unit

remove_dir ?all filename removes directory filename, or complains the NotADirectory if it does not exist. The all argument controls whether the function should recursively remove all files and sub-directories included as well. If glob is specified, it is called to select files to remove based on their basename, and the directories are not deleted even if all is true.

val select : ?deep:bool -> ?dft:[ `After | `Before ] -> ?glob:string -> ?path:string -> ?ignore:string -> ?kinds:Unix.file_kind list -> ?filter:(bool -> string -> bool) -> ?follow_links:bool -> ?error:(exn -> t -> unit) -> unit -> selector

select ?deep ?dft ?glob ?filter_rec ?filter_fun ?follow_links ?error () creates a selctor to customize a file iterator.

The deep and dft arguments controls whether function should recurse (false by default) in sub-directories. If deep is true, and ~dft is not specified, the files are listed in breadth-first mode (a,b,a/x,b/x,a/x/y for example). If ~dft is `Before, the files are listed in depth-first mode, and the ancestors are before their children. If ~dft is `After, the are after their children.

The glob, path and ignore arguments can be used to filter the files with regular expressions. glob is used to choose the files to keep based on their basenames, it is not used for the recursion itself. path is used to choose the files to keep based on the path, it is not used for the recursion itself. ignore is used to choose the files to ignore, based on their paths, both during the iteration and the recursion.

The kinds argument can be used to restrict the files to the ones of a particular kind.

The filter argument is used to select the files to keep. filter for_rec path should return true if the file is ok, false otherwise. for_rec is true if filter is called to check a directory for recursion, false if it is called for the iteration.

The follow_links argument is used to decide if a link to directory should be followed (when deep is also set).

The error argument is called when an error occurs, with error exn filename. The default behavior is to ignore errors.

val read_dir : ?select:selector -> t -> string array

read_dir ?select dir returns the files contained in the directory dir, recursively. Filenames start from the root of the given directory, i.e. a full filename would be dir / file.

In a directory, files are sorted in lexicographical order of their names.

val read_dir_to_list : ?select:selector -> t -> string list

Same as read_dir, but returns a list instead of an array

val iter_dir : ?select:selector -> t -> f:(string -> unit) -> unit

Same as read_dir, but calls a function on every file and directory. It is not equivalent to using read_dir and then itering on the result, as iter_dir the function is called during the traversal, not after, so concurrent modifications to the directory might become visible.

val iterator : ?select:selector -> t -> unit -> string option

iterator ?select dir creates an iterator on directory dir. The iterator is a function that returns None when finished, or Some file with the next file to iter on.

make_select f transforms f, a function that takes an optional selector, into a function that builds the selector on the fly.

For example: let () = EzFile.make_select EzFile.iter_dir ~deep:true ~f:(fun path -> ...) dirname

which is equivalent to: let () = let select = ~deep:true () in EzFile.iter_dir ~select ~f:(fun path -> ...) dirname

val make_select : (?select:selector -> t -> 'a) -> ?deep:bool -> ?dft:[ `After | `Before ] -> ?glob:string -> ?path:string -> ?ignore:string -> ?kinds:Unix.file_kind list -> ?filter:(bool -> string -> bool) -> ?follow_links:bool -> ?error:(exn -> t -> unit) -> t -> 'a
val mkdir : t -> int -> unit

mkdir filename mode simply creates the directory filename with permissions mode.

val readdir : t -> string array

readdir filename returns the files contained in directory filename as an array of strings. The strings are sorted in lexicographical order.

val rmdir : t -> unit

rmdir filename removes directory filename, or fails if it does not exist or is not a directory.

val equal : t -> t -> bool
val to_string : t -> string
val of_string : string -> t
val of_unix_string : string -> t
val of_win32_string : string -> t
val to_rooted_string : t -> string
val of_path : string -> string list -> t

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