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|
#!/usr/bin/perl
#
# $Id: apt-cache,v 1.2 2003/07/19 04:00:35 bod Exp $
#
# Example: demonstrate accessing the package cache
#
# Usage: apt-cache PACKAGE
#
use AptPkg::Config '$_config';
use AptPkg::System '$_system';
use AptPkg::Cache;
(my $self = $0) =~ s#.*/##;
# initialise the global config object with the default values and
# setup the $_system object
$_config->init;
$_system = $_config->system;
# supress cache building messages
$_config->{quiet} = 2;
# set up the cache
my $cache = AptPkg::Cache->new;
die "Usage: $self PACKAGE ...\n" unless @ARGV;
for my $pack (@ARGV)
{
my $p = $cache->{$pack};
unless ($p)
{
warn "$self: don't know anything about package `$pack'\n";
next;
}
print "Package: $pack\n";
for my $field (qw/Section SelectedState InstState CurrentState Flags/)
{
print "$field: $p->{$field}\n" if $p->{$field};
}
print "CurrentVer: $p->{CurrentVer}{VerStr}\n" if $p->{CurrentVer};
if (my $available = $p->{VersionList})
{
print "VersionList:\n";
my $i = 0;
for my $v (@$available)
{
print " [$i] $v->{VerStr} (",
(join ', ', map $_->{File}{FileName}, @{$v->{FileList}}),
")\n";
print " Priority: $v->{Priority}\n";
if (my $deps = $v->{DependsList})
{
my $type = '';
my $delim = '';
for my $d (@$deps)
{
if ($d->{DepType} ne $type)
{
print "\n" if $type;
$type = $d->{DepType};
print " $type: ";
}
else
{
print $delim;
}
$delim = ($d->{CompType} & AptPkg::Dep::Or) ? ' | ' : ', ';
print $d->{TargetPkg}{Name};
print " ($d->{CompTypeDeb} $d->{TargetVer})"
if $d->{TargetVer};
}
print "\n";
}
if (my $p = $v->{ProvidesList})
{
print ' Provides: ', (join ', ', map $_->{Name}, @$p),
"\n";
}
$i++;
}
}
if (my $revdeps = $p->{RevDependsList})
{
print "RevDependsList:";
my $parent = '';
my $type = '';
for my $r (@$revdeps)
{
my $new_parent = "$r->{ParentPkg}{Name} $r->{ParentVer}{VerStr}";
unless ($new_parent eq $parent)
{
$parent = $new_parent;
$type = '';
}
if ($r->{DepType} ne $type)
{
printf "\n %-30s", $type ? '' : $parent;
$type = $r->{DepType};
print " $type: ";
}
else
{
print ', ';
}
print $r->{TargetPkg}{Name};
print " ($r->{CompTypeDeb} $r->{TargetVer})" if $r->{TargetVer};
}
print "\n";
}
if (my $provides = $p->{ProvidesList})
{
print 'ProvidesList: ', (join ', ',
map "$_->{OwnerPkg}{Name} $_->{OwnerVer}{VerStr}", @$provides),
"\n";
}
print "\n";
}
1;
|
