/ 
Archive-RPM-0.07
River stage zero No dependents
/ Archive::RPM

NAME

Archive::RPM - Work with a RPM

SYNOPSIS

	use Archive::RPM;
    my $rpm = Archive::RPM->new('foo-1.2-1.noarch.rpm');

    # RPM2 header functions...

    # other functions...

DESCRIPTION

Archive::RPM provides a more complete method of accessing an RPM's meta- and actual data. We access this information by leveraging RPM2 where we can, and by "exploding" the rpm (with rpm2cpio and cpio) when we need information we can't get through RPM2.

TRAITS

This package allows for the application of various "TraitFor" style traits through the with_traits() function, e.g.:

Archive::RPM->with_traits('Foo')->new(...);

By default, we look for traits in the "Archive::RPM::TraitsFor" namespace, though this can be overridden by prepending a "+" to the full package name of the trait.

METHODS

An object of this class represents an actual RPM, somewhere on the filesystem. We provide all the methods RPM2::Header does, as well as additional functions to manipulate/extract the rpm itself (but not to install).

Right now, our documentation is horrible. Please see RPM2 for the methods provided by "RPM2::Header", and the source for the other functions we have defined. We support all methods provided by RPM2::Header, except the "files" method (that's handled by other bits).

new('file.rpm') | new(rpm => 'file.rpm', ...)

Creates a new Archive::RPM object. Note that the rpm parameter is required, and if it is the only one being passed the "rpm =>" may be omitted.

rpm => 'filename'|Path::Class::File

Required. Takes either a filename or a Path::Class::File object pointing to the rpm.

auto_cleanup => 0|1

Default is 1; if the rpm is extracted to the filesystem, purge this automatically.

rpm

Returns a Path::Class::File object representing the rpm we're working with.

extracted_to

Returns a Path::Class::Dir object representing where the rpm has been exploded to. If the rpm has not been exploded, it will be.

has_been_extracted

Returns true if the rpm has been exploded; false if not.

is_source_package | is_srpm | is_source

Returns true if this is a source rpm; false if not.

has_files

True if this rpm contains any files. (Some, e.g. Fedora's "perl-core" package, are "meta-packages" and do not deliver files; they simply ensure a given set of dependencies exist on a system. Sort of like Task::* CPAN dists.)

num_files

Returns the number of files delivered.

grep_files

Grep over the array of files; e.g.

my ($spec) = $srpm->grep_files(sub { /\.spec$/ });
map_files
files

Returns an array of all the dir/files delievered by the rpm. Note that these are returned as Path::Class objects, and we use the directories and files present on the filesystem after exploding the rpm rather than the list described by the rpm itself.

first_file
last_file
join_files
num_changelog_entries

Returns the total number of changelog entries.

changelog_entries

Returns an array of all the changelog entries.

first_changelog_entry

Returns the first changelog entry; note that changelogs are stored in reverse chronological order. That is, the first changelog entry is the newest entry.

last_changelog_entry

Returns the oldest changelog entry.

get_changelog_entry(Int)

Get a specific changelog entry.

map_changelog_entries
find_changelog_entry
grep_changelog_entries

DIAGNOSTICS

We tend to complain and die loudly on any errors.

SEE ALSO

RPM2

LIMITATIONS

Our documentation and test suite is clearly lacking, sadly.

We also have to explode the rpm for anything more intense than simply looking at the header for info. While this isn't really a _horrible_ thing, it's annoying to have to, say, explode a 100MB ooffice rpm just to get a count of how many files there are in it.

We do the "exploding" using external rpm2cpio and cpio binaries. While we could have used Archive::Cpio to handle the cpio extraction, it seemed a touch overkill; as there does not appear to be a Perl library to handle the "rpm2cpio" part, we may as well use the cpio bin. (It's not like it's missing from many systems, anyways.

BUGS

All complex software has bugs lurking in it, and this module is no exception. If you find a bug please either email me, or (preferred) to this package's RT tracker at bug-Archive-RPM@rt.cpan.org.

Patches are welcome.

AUTHOR

Chris Weyl <cweyl@alumni.drew.edu>

LICENSE AND COPYRIGHT

Copyright (c) 2009, 2010 Chris Weyl <cweyl@alumni.drew.edu>

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the

Free Software Foundation, Inc.
59 Temple Place, Suite 330
Boston, MA  02111-1307  USA