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Editing: DistnameInfo.pm
package CPAN::DistnameInfo; $VERSION = "0.12"; use strict; sub distname_info { my $file = shift or return; my ($dist, $version) = $file =~ /^ ((?:[-+.]*(?:[A-Za-z0-9]+|(?<=\D)_|_(?=\D))* (?: [A-Za-z](?=[^A-Za-z]|$) | \d(?=-) )(?<![._-][vV]) )+)(.*) $/xs or return ($file,undef,undef); if ($dist =~ /-undef\z/ and ! length $version) { $dist =~ s/-undef\z//; } # Remove potential -withoutworldwriteables suffix $version =~ s/-withoutworldwriteables$//; if ($version =~ /^(-[Vv].*)-(\d.*)/) { # Catch names like Unicode-Collate-Standard-V3_1_1-0.1 # where the V3_1_1 is part of the distname $dist .= $1; $version = $2; } if ($version =~ /(.+_.*)-(\d.*)/) { # Catch names like Task-Deprecations5_14-1.00.tar.gz where the 5_14 is # part of the distname. However, names like libao-perl_0.03-1.tar.gz # should still have 0.03-1 as their version. $dist .= $1; $version = $2; } # Normalize the Dist.pm-1.23 convention which CGI.pm and # a few others use. $dist =~ s{\.pm$}{}; $version = $1 if !length $version and $dist =~ s/-(\d+\w)$//; $version = $1 . $version if $version =~ /^\d+$/ and $dist =~ s/-(\w+)$//; if ($version =~ /\d\.\d/) { $version =~ s/^[-_.]+//; } else { $version =~ s/^[-_]+//; } my $dev; if (length $version) { if ($file =~ /^perl-?\d+\.(\d+)(?:\D(\d+))?(-(?:TRIAL|RC)\d+)?$/) { $dev = 1 if (($1 > 6 and $1 & 1) or ($2 and $2 >= 50)) or $3; } elsif ($version =~ /\d\D\d+_\d/ or $version =~ /-TRIAL/) { $dev = 1; } } else { $version = undef; } ($dist, $version, $dev); } sub new { my $class = shift; my $distfile = shift; $distfile =~ s,//+,/,g; my %info = ( pathname => $distfile ); ($info{filename} = $distfile) =~ s,^(((.*?/)?authors/)?id/)?([A-Z])/(\4[A-Z])/(\5[-A-Z0-9]*)/,, and $info{cpanid} = $6; if ($distfile =~ m,([^/]+)\.(tar\.(?:g?z|bz2)|zip|tgz)$,i) { # support more ? $info{distvname} = $1; $info{extension} = $2; } @info{qw(dist version beta)} = distname_info($info{distvname}); $info{maturity} = delete $info{beta} ? 'developer' : 'released'; return bless \%info, $class; } sub dist { shift->{dist} } sub version { shift->{version} } sub maturity { shift->{maturity} } sub filename { shift->{filename} } sub cpanid { shift->{cpanid} } sub distvname { shift->{distvname} } sub extension { shift->{extension} } sub pathname { shift->{pathname} } sub properties { %{ $_[0] } } 1; __END__ =head1 NAME CPAN::DistnameInfo - Extract distribution name and version from a distribution filename =head1 SYNOPSIS my $pathname = "authors/id/G/GB/GBARR/CPAN-DistnameInfo-0.02.tar.gz"; my $d = CPAN::DistnameInfo->new($pathname); my $dist = $d->dist; # "CPAN-DistnameInfo" my $version = $d->version; # "0.02" my $maturity = $d->maturity; # "released" my $filename = $d->filename; # "CPAN-DistnameInfo-0.02.tar.gz" my $cpanid = $d->cpanid; # "GBARR" my $distvname = $d->distvname; # "CPAN-DistnameInfo-0.02" my $extension = $d->extension; # "tar.gz" my $pathname = $d->pathname; # "authors/id/G/GB/GBARR/..." my %prop = $d->properties; =head1 DESCRIPTION Many online services that are centered around CPAN attempt to associate multiple uploads by extracting a distribution name from the filename of the upload. For most distributions this is easy as they have used ExtUtils::MakeMaker or Module::Build to create the distribution, which results in a uniform name. But sadly not all uploads are created in this way. C<CPAN::DistnameInfo> uses heuristics that have been learnt by L<http://search.cpan.org/> to extract the distribution name and version from filenames and also report if the version is to be treated as a developer release The constructor takes a single pathname, returning an object with the following methods =over =item cpanid If the path given looked like a CPAN authors directory path, then this will be the the CPAN id of the author. =item dist The name of the distribution =item distvname The file name with any suffix and leading directory names removed =item filename If the path given looked like a CPAN authors directory path, then this will be the path to the file relative to the detected CPAN author directory. Otherwise it is the path that was passed in. =item maturity The maturity of the distribution. This will be either C<released> or C<developer> =item extension The extension of the distribution, often used to denote the archive type (e.g. 'tar.gz') =item pathname The pathname that was passed to the constructor when creating the object. =item properties This will return a list of key-value pairs, suitable for assigning to a hash, for the known properties. =item version The extracted version =back =head1 AUTHOR Graham Barr <gbarr@pobox.com> =head1 COPYRIGHT Copyright (c) 2003 Graham Barr. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. =cut
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