NAME
    File::Digest - Calculate file checksum/digest (using various algorithms)

VERSION
    This document describes version 0.009 of File::Digest (from Perl
    distribution File-Digest), released on 2019-09-12.

SYNOPSIS
     use File::Digest qw(digest_files);

     my $res = digest_files(
         files => ["file1", "file2"],
         algorithm => 'md5', # default md5, available also: crc32, sha1, sha256
     );

DESCRIPTION
FUNCTIONS
  digest_file
    Usage:

     digest_file(%args) -> [status, msg, payload, meta]

    Calculate file checksum/digest (using various algorithms).

    Return 400 status when algorithm is unknown/unsupported.

    This function is not exported.

    Arguments ('*' denotes required arguments):

    *   algorithm => *str* (default: "md5")

    *   digest_args => *array[str]*

    *   file* => *filename*

        Filename ("-" means stdin).

    Returns an enveloped result (an array).

    First element (status) is an integer containing HTTP status code (200
    means OK, 4xx caller error, 5xx function error). Second element (msg) is
    a string containing error message, or 'OK' if status is 200. Third
    element (payload) is optional, the actual result. Fourth element (meta)
    is called result metadata and is optional, a hash that contains extra
    information.

    Return value: (any)

  digest_files
    Usage:

     digest_files(%args) -> [status, msg, payload, meta]

    Calculate file checksum/digest (using various algorithms).

    Dies when algorithm is unsupported/unknown.

    This function is not exported by default, but exportable.

    Arguments ('*' denotes required arguments):

    *   algorithm => *str* (default: "md5")

    *   digest_args => *array[str]*

    *   files* => *array[filename]*

        Array of filenames (filename "-" means stdin).

    Returns an enveloped result (an array).

    First element (status) is an integer containing HTTP status code (200
    means OK, 4xx caller error, 5xx function error). Second element (msg) is
    a string containing error message, or 'OK' if status is 200. Third
    element (payload) is optional, the actual result. Fourth element (meta)
    is called result metadata and is optional, a hash that contains extra
    information.

    Return value: (any)

HOMEPAGE
    Please visit the project's homepage at
    <https://metacpan.org/release/File-Digest>.

SOURCE
    Source repository is at <https://github.com/perlancar/perl-File-Digest>.

BUGS
    Please report any bugs or feature requests on the bugtracker website
    <https://rt.cpan.org/Public/Dist/Display.html?Name=File-Digest>

    When submitting a bug or request, please include a test-file or a patch
    to an existing test-file that illustrates the bug or desired feature.

SEE ALSO
    sum from PerlPowerTools (which only supports older algorithms like
    CRC32).

    Backend modules: Digest::CRC, Digest::MD5, Digest::SHA.

    xsum from App::xsum which can also check checksums/digests from checksum
    file e.g. MD5SUMS.

AUTHOR
    perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE
    This software is copyright (c) 2019, 2017, 2016 by perlancar@cpan.org.

    This is free software; you can redistribute it and/or modify it under
    the same terms as the Perl 5 programming language system itself.