File manager - Edit - /usr/share/doc/libapt-pkg-perl/examples/apt-cache
Back
#!/usr/bin/perl # # 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; # suppress cache building messages $_config->{quiet} = 2; # set up the cache my $cache = AptPkg::Cache->new; my $policy = $cache->policy; 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 $c = $policy->candidate($p)) { print "CandidateVer: ", $c->{VerStr}, "\n"; } if (my $available = $p->{VersionList}) { print "VersionList:\n"; my $i = 0; for my $v (@$available) { print " [$i] $v->{VerStr}\n"; for my $f (map $_->{File}, @{$v->{FileList}}) { printf " * %s (prio %d)\n", $f->{FileName}, $policy->priority($f); } for my $field (qw/MultiArch Arch Priority/) { print " $field: $v->{$field}\n" if $v->{$field}; } 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 $d->{TargetPkg}{ShortName}; print " ($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}{ShortName} $r->{ParentVer}{VerStr}"; unless ($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 $r->{TargetPkg}{ShortName}; print " ($r->{CompTypeDeb} $r->{TargetVer})" if $r->{TargetVer}; } print "\n"; } if (my $provides = $p->{ProvidesList}) { print 'ProvidesList: ', (join ', ', map "$_->{OwnerPkg}{ShortName} $_->{OwnerVer}{VerStr}", @$provides), "\n"; } print "\n"; } 1;
| ver. 1.4 |
Github
|
.
| PHP 7.4.33 | Generation time: 0.41 |
proxy
|
phpinfo
|
Settings