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EzFile
Sourceinclude module type of struct include FileString end
include FileSig.FILE_OPERATIONS with type t := string
include FileSig.FILENAME_OPERATIONS with type t := string
find_in_path path filename
searches a file in a list of directories.
include FileSig.CONTENT_OPERATIONS
with type in_file := string
and type out_file := 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.
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.
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.
read_lines file
returns the content of file
as an array of lines. If the file is opened, it is opened in text mode.
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.
write_lines file lines
creates the file file
from an array of lines, using FileChannel.output_line
for each line.
write_lines file lines
creates the file file
from a list of lines, using FileChannel.output_line
for each line.
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.
Same as read_sublines
, but returns a list of strings.
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.
iter_lines f file
calls f line
on all the lines line
of the file file
.
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.
copy_file src dst
copy all the content remaining in file src
to file dst
.
include FileSig.DIRECTORY_OPERATIONS with type t := string
This exception is raised when one of the following functions is called with a non-directory argument
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.
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, and the directories are not deleted even if all
is true
.
val select :
?deep:bool ->
?dft:[ `After | `Before ] ->
?glob:string ->
?filter:(bool -> string -> string -> bool) ->
?follow_links:bool ->
?error:(exn -> string -> string -> unit) ->
unit ->
string FileSelector.t
select ?deep ?dft ?glob ?filter ?follow_links ?error ()
creates a selctor to customize a file iterator.
The deep
and dft
arguments controls whether function should recurse 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
argument can be used to filter the basenames of files with a regular expression.
The filter
argument is called as filter is_dir basename path
where is_dir
is set when checking whether to enter or not into a sub-directory, basename
is the basename of the file and path
is the path starting with a '/', yet relative to the initial directory. filter
is called on every file with is_dir
false to decide whether it should be added or not, and only on sub-directories with is_dir
true to decide whether to enter or not if deep
is true.
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 path filename
.
read_dir ?select filename
returns the files contained in the directory filename
.
In a directory, files are sorted in lexicographical order of their names.
Same as read_dir
, but returns a list instead of an array
val iter_dir :
?select:string FileSelector.t ->
(basename:string -> localpath:string -> file:string -> unit) ->
string ->
unit
Same as read_dir
, but calls a function on every file and directory with the basename, the relative path (yet, starting with a '/') and the filename (i.e. the directory name concatenated with the relative path): f basename path file
. 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.
iterator ?select dir
creates an iterator on directory dir
. The iterator is a function that returns None
when finished, or Some (path, filename)
with the next file to iter on.
mkdir filename mode
simply creates the directory filename
with permissions mode
.
readdir filename
returns the files contained in directory filename
as an array of strings. The strings are sorted in lexicographical order.
rmdir filename
removes directory filename
, or fails if it does not exist or is not a directory.
cut_at_last_extension file
returns a pair before_ext,extension
, where extension
is the last extension, converted to lowercase, and without the initial dot, and before_ext
everything before the last dot.
extensions_of_basename basename
returns the list of extensions of the file. The argument must only contain the basename of the file, otherwise the dot may belong to a parent directory.