Section: libdpkg-perl (3perl)
Dpkg::Deps::KnownFacts - list of installed real and virtual packages
This object represents a list of installed packages and a list of virtual
packages provided (by the set of installed packages).
- $facts = Dpkg::Deps::KnownFacts->new();
Creates a new object.
- $facts->add_installed_package($package, $version, $arch, $multiarch)
Records that the given version of the package is installed. If
$version/$arch is undefined we know that the package is installed but we
don't know which version/architecture it is. $multiarch is the Multi-Arch
field of the package. If $multiarch is undef, it will be equivalent to
Note that $multiarch is only used if $arch is provided.
- $facts->add_provided_package($virtual, $relation, $version, $by)
Records that the ``$by'' package provides the $virtual package. $relation
and $version correspond to the associated relation given in the Provides
field (if present).
- ($check, $param) = $facts->check_package($package)
$check is one when the package is found. For a real package, $param
contains the version. For a virtual package, $param contains an array
reference containing the list of packages that provide it (each package is
listed as [ $provider, $relation, $version ]).
This function is obsolete and should not be used. Dpkg::Deps::KnownFacts
is only meant to be filled with data and then passed to Dpkg::Deps
methods where appropriate, but it should not be directly queried.
This method is private and should not be used except from within Dpkg::Deps.
Version 1.01 (dpkg 1.16.1)
New option: Dpkg::Deps::KnownFacts->add_installed_package()
now accepts 2
supplementary parameters ($arch and $multiarch
Deprecated method: Dpkg::Deps::KnownFacts->check_package() is obsolete,
it should not have been part of the public API.
Version 1.00 (dpkg 1.15.6)
Mark the module as public.