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Diffstat (limited to 'Master/tlpkg/tlperl0/lib/CPAN/DistnameInfo.pm')
| -rwxr-xr-x | Master/tlpkg/tlperl0/lib/CPAN/DistnameInfo.pm | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl0/lib/CPAN/DistnameInfo.pm b/Master/tlpkg/tlperl0/lib/CPAN/DistnameInfo.pm new file mode 100755 index 00000000000..808cf2ba40d --- /dev/null +++ b/Master/tlpkg/tlperl0/lib/CPAN/DistnameInfo.pm @@ -0,0 +1,194 @@ + +package CPAN::DistnameInfo; + +$VERSION = "0.09"; +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) { + $dist =~ s/-undef\z//; + } + + if ($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; + } + + # 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/) { + $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 + |