NAME

Dist::Util::Debian - Utilities related to Perl distribution and Debian

VERSION

This document describes version 0.007 of Dist::Util::Debian (from Perl distribution Dist-Util-Debian), released on 2018-10-23.

SYNOPSIS

 use Dist::Util::Debian qw(
     dist2deb
     deb_exists
     dist_has_deb
     deb_ver
     dist_deb_ver
 );

 say dist2deb("HTTP-Tiny"); # -> libhttp-tiny-perl

 say dist_has_deb("HTTP-Tiny"); # -> 1
 say dist_has_deb("Foo");       # -> 0
 say dist_has_deb({use_allpackages=>1}, "HTTP-Tiny", "Foo"); # -> (1, 0)

 say dist_deb_ver("HTTP-Tiny"); # -> "0.070-1"
 say dist_deb_ver("Foo");       # -> undef
 say dist_deb_ver({use_allpackages=>1}, "HTTP-Tiny", "Foo"); # -> ("0.070-1", undef)

DESCRIPTION

FUNCTIONS

dist2deb($dist, ...) => list

It uses the simple rule of turning $dist to lowercase and adds "lib" + "-perl" prefix and suffix. A small percentage of distributions do not follow this rule.

dist_has_deb([ \%opts, ] $dist, ...) => bool|list[bool]

Return true if distribution named $dist has a corresponding Debian package. Currently the way the routine checks this is rather naive: it checks the corresponding Debian package against this URL: https://packages.debian.org/sid/$package.

Will warn and return undef on error, e.g. the URL cannot be checked or does not contain negative/positive indicator of existence.

Can accept multiple dists and will return a list of bools in that case.

Known options:

• use_allpackages => bool

  If you need to check a lot of distributions (hundreds or more) then the default way of checking each distribution against a URL might be too slow. An alternative way, enabled if you set this option to true, is to download https://packages.debian.org/unstable/allpackages?format=txt.gz (at the time of this writing, Jan 2017, the size is about 1.7M) then parse it locally. The file will be cached to a temporary file and reused for a day.

  Function will return undef if the allpackages index cannot be donwloaded.

deb_exists([ \%opts, ] $deb, ...) => bool|list[bool]

deb_ver([ \%opts, ] $deb, ...) => str|list[str]

dist_deb_ver([ \%opts, ] $deb, ...) => str|list[str]

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/Dist-Util-Debian.

SOURCE

Source repository is at https://github.com/perlancar/perl-Dist-Util-Debian.

BUGS

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

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.

AUTHOR

perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2018, 2017 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.

cpanm Dist::Util::Debian

perl -MCPAN -e shell
install Dist::Util::Debian