1CPAN::ParseDistributionU(s3e)r Contributed Perl DocumentaCtPiAoNn::ParseDistribution(3)
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NAME

6       CPAN::ParseDistribution - index a file from the BackPAN
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DESCRIPTION

9       Given a file from the BackPAN, this will let you find out what versions
10       of what modules it contains, the distribution name and version
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SYNOPSIS

13           my $dist = CPAN::ParseDistribution->new(
14               'A/AU/AUTHORID/subdirectory/Some-Distribution-1.23.tar.gz',
15               use_tar => '/bin/tar',
16               ...
17           );
18           my $modules     = $dist->modules(); # hashref of modname => version
19           my $distname    = $dist->dist();
20           my $distversion = $dist->distversion();
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METHODS

23   new
24       Constructor, takes a single mandatory argument, which should be a
25       tarball or zip file from the CPAN or BackPAN, and some optional named
26       arguments:
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28       use_tar
29           The full path to 'tar'.  This is assumed to be GNU tar, and to be
30           sufficiently well-endowed as to be able to support bzip2 files.
31           Maybe I'll fix that at some point.  If this isn't specified, then
32           Archive::Tar is used instead.
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34           You might want to use this if dealing with very large files, as
35           Archive::Tar is rather profligate with memory.
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37   isdevversion
38       Returns true or false depending on whether this is a developer-only or
39       trial release of a distribution.  This is determined by looking for an
40       underscore in the distribution version or the string '-TRIAL' at the
41       end of the distribution version.
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43   modules
44       Returns a hashref whose keys are module names, and their values are the
45       versions of the modules.  The version number is retrieved by eval()ing
46       what looks like a $VERSION line in the code.  This is done in a "Safe"
47       compartment, but may be a security risk if you do this with untrusted
48       code.  Caveat user!
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50   dist
51       Return the name of the distribution. eg, in the synopsis above, it
52       would return 'Some-Distribution'.
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54   distversion
55       Return the version of the distribution. eg, in the synopsis above, it
56       would return 1.23.
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58       Strictly speaking, the CPAN doesn't have distribution versions -
59       Foo-Bar-1.23.tar.gz is not considered to have any relationship to
60       Foo-Bar-1.24.tar.gz, they just happen to coincidentally have rather
61       similar contents.  But other tools, such as those used by the CPAN
62       testers, do treat distributions as being versioned.
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SECURITY

65       This module executes a very small amount of code from each module that
66       it finds in a distribution.  While every effort has been made to do
67       this safely, there are no guarantees that it won't let the
68       distributions you're examining do horrible things to your machine, such
69       as email your password file to strangers.  You are strongly advised to
70       read the source code and to run it in a very heavily restricted user
71       account.
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LIMITATIONS, BUGS and FEEDBACK

74       I welcome feedback about my code, including constructive criticism.
75       Bug reports should be made using Github Issues
76       <https://github.com/DrHyde/perl-modules-CPAN-ParseDistribution/issues>
77       and should include the smallest possible chunk of code, along with any
78       necessary data, which demonstrates the bug.  Ideally, this will be in
79       the form of files which I can drop in to the module's test suite.
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81       There is a known problem with parsing some pathological distributions
82       on Windows, where CPAN::ParseDistribution may either hang or crash.
83       This is because Windows doesn't properly support fork()ing and signals.
84       I can not fix this, but welcome patches with tests.
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SEE ALSO

87       <http://pause.perl.org/>
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89       dumpcpandist
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92       Copyright 2009-2011 David Cantrell <david@cantrell.org.uk>
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94       Contains code originally from the PAUSE by Andreas Koenig.
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96       This software is free-as-in-speech software, and may be used,
97       distributed, and modified under the terms of either the GNU General
98       Public Licence version 2 or the Artistic Licence.  It's up to you which
99       one you use.  The full text of the licences can be found in the files
100       GPL2.txt and ARTISTIC.txt, respectively.
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CONSPIRACY

103       This module is also free-as-in-mason software.
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107perl v5.30.0                      2019-07-26        CPAN::ParseDistribution(3)
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