NAME
    App::UniqFiles - Report or omit duplicate file contents

VERSION
    This document describes version 0.130 of App::UniqFiles (from Perl
    distribution App-UniqFiles), released on 2019-12-04.

SYNOPSIS
     # See uniq-files script

NOTES
    Warning: cannot properly handle symlinks or special files (socket, pipe,
    device), so don't feed them.

FUNCTIONS
  uniq_files
    Usage:

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

    Report or omit duplicate file contents.

    Given a list of filenames, will check each file size and content for
    duplicate content. Interface is a bit like the "uniq" Unix command-line
    program.

    This function is not exported by default, but exportable.

    Arguments ('*' denotes required arguments):

    *   check_content => *bool* (default: 1)

        Whether to check file content .

        If set to 0, uniqueness will be determined solely from file size.
        This can be quicker but might generate a false positive when two
        files of the same size are deemed as duplicate even though their
        content are different.

    *   count => *bool* (default: 0)

        Whether to return each file content's number of occurence.

        1 means the file content is only encountered once (unique), 2 means
        there is one duplicate, and so on.

    *   files* => *array[str]*

    *   report_duplicate => *int* (default: 2)

        Whether to return duplicate items.

        Can be set to either 0, 1, 2.

        If set to 2 (the default), will only return the first of duplicate
        items. For example: file1 contains text 'a', file2 'b', file3 'a'.
        Only file1 will be returned because file2 is unique and file3
        contains 'a' (already represented by file1).

        If set to 1, will return all the the duplicate items. From the above
        example: file1 and file3 will be returned.

        If set to 0, duplicate items will not be returned.

    *   report_unique => *bool* (default: 1)

        Whether to return unique items.

    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/App-UniqFiles>.

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

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

    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
    find-duplicate-filenames from App::FindUtils

AUTHOR
    perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE
    This software is copyright (c) 2019, 2017, 2015, 2014, 2012, 2011 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.

