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.\" ========================================================================
.\"
.IX Title "Debian::Debget 3pm"
.TH Debian::Debget 3pm "2016-11-21" "perl v5.24.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.nh
.SH "NAME"
Debian::Debget \- helper functions used by debget et al
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
\&\s-1XXX\s0
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
These are functions used by \fBdebget\fR and related scripts, but you can
use them, too.  I will do everything possible to retain backwards
compatibility for the interfaces documented here.
.PP
Most of these functions will \f(CW\*(C`die\*(C'\fR if they're called in a context
(scalar, list) which doesn't match what they expect.  This is so that I
will be able to change them to return something different in the other
context without breaking old code.
.SH "IMPORTABLES"
.IX Header "IMPORTABLES"
.IP "binary_package_info \fIpackage\fR" 4
.IX Item "binary_package_info package"
This function returns some information about a binary package.
.Sp
If the \fIpackage\fR isn't found nothing is returned.  If it is found, the
return value is a data structure like this:
.Sp
.Vb 3
\&    $r\->{$distribution}{$architecture} = $version;
\&    # $distribution => \*(Aqstable\*(Aq, \*(Aqexperimental\*(Aq, etc.
\&    # $architecture => \*(Aqi386\*(Aq, \*(Aqpowerpc\*(Aq, etc.
.Ve
.Sp
If something goes seriously wrong \fBbinary_package_info\fR will \f(CW\*(C`die\*(C'\fR.
.IP "source_package_info \fIpackage\fR" 4
.IX Item "source_package_info package"
This function returns some information about a source package.
.Sp
If the \fIpackage\fR isn't found nothing is returned.  If it is found, the
return value is a data structure like this:
.Sp
.Vb 4
\&    $r\->{$distribution} = [$version, @binary_package_list];
\&    # $distribution => \*(Aqstable\*(Aq, \*(Aqexperimental\*(Aq, etc.
\&    # $version      => \*(Aq123.4\-5\*(Aq, etc.
\&    # @binary_package_list => qw(nethack\-common nethack\-x11), etc.
.Ve
.IP "cmp_debian_versions \fIv1\fR, \fIv2\fR" 4
.IX Item "cmp_debian_versions v1, v2"
This is like \f(CW\*(C`cmp\*(C'\fR for Debian package version numbers.  It is prototyped
to take 2 scalar arguments, so it can be used as-is as a \f(CW\*(C`sort\*(C'\fR comparison
function.
.IP "upstream_version \fIdebian-version\fR" 4
.IX Item "upstream_version debian-version"
This returns the upstream version extracted from the given \fIdebian-version\fR
.IP "pool_dir \fIpackage\fR" 4
.IX Item "pool_dir package"
This returns the pool directory (starting at the \f(CW\*(C`pool/\*(C'\fR level) in
which files for \fIpackage\fR are stored.  \fIpackage\fR can be either a
binary or source package name.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fIdebget\fR\|(1), \fIAptPkg\fR\|(3pm)
.SH "AUTHOR"
.IX Header "AUTHOR"
Roderick Schertler <roderick@argon.org>