/ 
App-imgsize-0.005
River stage one • 1 direct dependent • 1 total dependent
/ App::imgsize

NAME

App::imgsize - Show dimensions of image files

VERSION

This document describes version 0.005 of App::imgsize (from Perl distribution App-imgsize), released on 2024-08-20.

SYNOPSIS

# Use via imgsize CLI script

FUNCTIONS

imgsize

Usage:

imgsize(%args) -> [$status_code, $reason, $payload, \%result_meta]

Show dimensions of image files.

Examples:

  • Example #1:

    imgsize(filenames => ["foo.jpg"]); # -> [200, "OK", "640x480", {}]

  • Example #2:

    imgsize(filenames => ["foo.jpg"], detail => 1);

    Result:

    [
  200,
  "OK",
  [
    {
      filename => "foo.jpg",
      filesize => 23844,
      width    => 640,
      height   => 480,
      res_name => "VGA",
    },
  ],
  {
    "table.fields" => ["filename", "filesize", "width", "height", "res_name"],
  },
]

  • Example #3:

    imgsize(filenames => ["foo.jpg", "bar.png", "baz.txt"]);

    Result:

    [
  200,
  "OK",
  [
    {
      filename => "foo.jpg",
      filesize => 23844,
      width    => 640,
      height   => 480,
      res_name => "VGA",
    },
    {
      filename => "bar.png",
      filesize => 87374,
      width    => 400,
      height   => 200,
      res_name => undef,
    },
    {
      filename => "baz.txt",
      filesize => 2393,
      width    => 0,
      height   => 0,
      res_name => undef,
    },
  ],
  {
    "table.fields" => ["filename", "filesize", "width", "height", "res_name"],
  },
]

This function is not exported by default, but exportable.

Arguments ('*' denotes required arguments):

  • detail => bool

    Whether to show detailed records.

    The default is to show detailed records when there are more than 1 filenames specified; when there is only 1 filename, will only show dimension in WxH format (e.g. 640x480). If this option is specified, will show detailed records even if there is only one filename specified.

  • filenames* => array[filename]

    (No description)

Returns an enveloped result (an array).

First element ($status_code) is an integer containing HTTP-like status code (200 means OK, 4xx caller error, 5xx function error). Second element ($reason) is a string containing error message, or something like "OK" if status is 200. Third element ($payload) is the actual result, but usually not present when enveloped result is an error response ($status_code is not 2xx). Fourth element (%result_meta) is called result metadata and is optional, a hash that contains extra information, much like how HTTP response headers provide additional metadata.

Return value: (any)

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/App-imgsize.

SOURCE

Source repository is at https://github.com/perlancar/perl-App-imgsize.

AUTHOR

perlancar <perlancar@cpan.org>

CONTRIBUTING

To contribute, you can send patches by email/via RT, or send pull requests on GitHub.

Most of the time, you don't need to build the distribution yourself. You can simply modify the code, then test via:

% prove -l

If you want to build the distribution (e.g. to try to install it locally on your system), you can install Dist::Zilla, Dist::Zilla::PluginBundle::Author::PERLANCAR, Pod::Weaver::PluginBundle::Author::PERLANCAR, and sometimes one or two other Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps required beyond that are considered a bug and can be reported to me.

COPYRIGHT AND LICENSE

This software is copyright (c) 2024, 2020, 2016 by perlancar <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.

BUGS

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

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.