AptPkg man page on ElementaryOS

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AptPkg(3pm)	      User Contributed Perl Documentation	   AptPkg(3pm)

NAME
       AptPkg - interface to libapt-pkg

SYNOPSIS
       use AptPkg;

DESCRIPTION
       The AptPkg module provides a low-level XS interface to libapt-pkg.

       Note that this interface is intended to be internal, and may change,
       see the AptPkg::Config, AptPkg::System, AptPkg::Version, AptPkg::Cache,
       Apt::Policy and AptPkg::Source classes for a higher level interface.

   AptPkg
       The AptPkg package provides the following functions:

       _init_config(CONF)
	   Initialise a Configuration object (pkgInitConfig).  See the init
	   method in AptPkg::Config.

       _init_system(CONF)
	   Return a pointer to the system object (pkgInitSystem).  See the
	   system method in AptPkg::Config.

       _parse_cmdline(CONF, ARG_DEFS, ...)
	   Constructs a CommandLine instance, invokes the Parse method and
	   returns the remaining arguments.  See the parse_cmdline method in
	   AptPkg::Config.

   AptPkg::_config
       The AptPkg::_config package wraps a Perl class around the Configuration
       class.  It provides an instance of the global _config object, and
       exposes the following methods:

	   Find, FindFile, FindDir, FindB, FindAny, Set, Exists,
	   ExistsAny, Tree and Dump.

       The functions ReadConfigFile and ReadConfigDir are also provided within
       the package and may be used as methods.

   AptPkg::_config::item
       The AptPkg::_config::item package wraps a Perl class around the
       Configuration::Item class.  The AptPkg::_config Tree method returns an
       instance of this class.

       Methods:

	   Value, Tag, FullTag, Parent, Child and Next.

   AptPkg::System
       The AptPkg::System package wraps a Perl class around the pkgSystem
       class.  It provides an instance of the global _system object, and
       exposes the following methods:

	   Label, VS, Lock and UnLock.

   AptPkg::Version
       The AptPkg::Version package wraps a Perl class around the
       pkgVersioningSystem class.  It exposes the following methods:

	   Label, CmpVersion, CmpReleaseVer, CheckDep and UpstreamVersion.

   AptPkg::_cache
       The AptPkg::_cache package wraps a Perl class around the pkgCacheFile
       class.  It exposes the following methods:

	   Open, Close, FindPkg, PkgBegin, FileList, Packages, Policy, MultiArchCache
	   and NativeArch.

   AptPkg::Cache::_package
       The AptPkg::Cache::_package package wraps a Perl class around the
       pkgCache::PkgIterator class.  It exposes the following methods:

	   Next, Name, FullName, Arch, Section, VersionList, CurrentVer,
	   RevDependsList, ProvidesList, Index, SelectedState, InstState,
	   CurrentState and Flags.

   AptPkg::Cache::_version
       The AptPkg::Cache::_version package wraps a Perl class around the
       pkgCache::VerIterator class.  It exposes the following methods:

	   VerStr, Section, MultiArch, Arch, ParentPkg, DescriptionList,
	   TranslatedDescription, DependsList, ProvidesList, FileList, Index
	   and Priority.

   AptPkg::Cache::_depends
       The AptPkg::Cache::_depends package wraps a Perl class around the
       pkgCache::DepIterator class.  It exposes the following methods:

	   TargetVer, TargetPkg, ParentVer, ParentPkg, Index, CompType and
	   DepType.

   AptPkg::Cache::_provides
       The AptPkg::Cache::_provides package wraps a Perl class around the
       pkgCache::PrvIterator class.  It exposes the following methods:

	   Name, ProvideVersion, OwnerVer, OwnerPkg and Index.

   AptPkg::Cache::_description
       The AptPkg::Cache::_description package wraps a Perl class around the
       pkgCache::DescIterator class.  It exposes the following methods:

	   LanguageCode, md5 and FileList.

   AptPkg::Cache::_pkg_file
       The AptPkg::Cache::_pkg_file package wraps a Perl class around the
       pkgCache::PkgFileIterator class.	 It exposes the following methods:

	   FileName, Archive, Component, Version, Origin, Label, Site,
	   IndexType and Index.

   AptPkg::Cache::_ver_file
       The AptPkg::Cache::_ver_file package wraps a Perl class around the
       pkgCache::VerFileIterator class.	 It exposes the following methods:

	   File, Index, Offset and Size.

   AptPkg::Cache::_desc_file
       The AptPkg::Cache::_desc_file package wraps a Perl class around the
       pkgCache::DescFileIterator class.  It exposes the following methods:

	   File

   AptPkg::Cache::_pkg_records
       The AptPkg::Cache::_pkg_records package wraps a Perl class around the
       pkgRecords class.  It exposes the following methods:

	   Lookup.

   AptPkg::_policy
       The AptPkg::_policy package wraps a Perl class around the pkgPolicy
       class.  It exposes the following methods:

	   GetPriority, GetMatch and GetCandidateVer.

   AptPkg::_source_list
       The AptPkg::_source_list package wraps a Perl class around the
       pkgSourceList class.  Required as an argument to the
       AptPkg::_src_records constructor.

   AptPkg::_src_records
       The AptPkg::_src_records package wraps a Perl class around the
       pkgSrcRecords class.  It exposes the following methods:

	   Restart, Find.

   Constants
       The following APT enumerations are included, used by attributes of
       AptPkg::Cache.

       pkgCache::Version::VerMultiArch

       "AptPkg::Version::None", "AptPkg::Version::All",
       "AptPkg::Version::Foreign", "AptPkg::Version::Same",
       "AptPkg::Version::Allowed", "AptPkg::Version::AllForeign" and
       "AptPkg::Version::AllAllowed".

       pkgCache::Dep::DepType

       "AptPkg::Dep::Depends", "AptPkg::Dep::PreDepends",
       "AptPkg::Dep::Suggests", "AptPkg::Dep::Recommends",
       "AptPkg::Dep::Conflicts", "AptPkg::Dep::Replaces" and
       "AptPkg::Dep::Obsoletes".

       pkgCache::Dep::DepCompareOp

       "AptPkg::Dep::Or", "AptPkg::Dep::NoOp", "AptPkg::Dep::LessEq",
       "AptPkg::Dep::GreaterEq", "AptPkg::Dep::Less", "AptPkg::Dep::Greater",
       "AptPkg::Dep::Equals" and "AptPkg::Dep::NotEquals".

       pkgCache::State::VerPriority

       "AptPkg::State::Important", "AptPkg::State::Required",
       "AptPkg::State::Standard", "AptPkg::State::Optional" and
       "AptPkg::State::Extra".

       pkgCache::State::PkgSelectedState

       "AptPkg::State::Unknown", "AptPkg::State::Install",
       "AptPkg::State::Hold", "AptPkg::State::DeInstall" and
       "AptPkg::State::Purge".

       pkgCache::State::PkgInstState

       "AptPkg::State::Ok", "AptPkg::State::ReInstReq",
       "AptPkg::State::HoldInst" and "AptPkg::State::HoldReInstReq".

       pkgCache::State::PkgCurrentState

       "AptPkg::State::NotInstalled", "AptPkg::State::UnPacked",
       "AptPkg::State::HalfConfigured", "AptPkg::State::HalfInstalled",
       "AptPkg::State::ConfigFiles" and "AptPkg::State::Installed".

       pkgCache::Flag::PkgFlags

       "AptPkg::Flag::Auto", "AptPkg::Flag::Essential" and
       "AptPkg::Flag::Important".

SEE ALSO
       AptPkg::Config(3pm), AptPkg::System(3pm), AptPkg::Version(3pm),
       AptPkg::Cache(3pm), AptPkg::Source(3pm).

AUTHOR
       Brendan O'Dea <bod@debian.org>

perl v5.18.1			  2013-05-11			   AptPkg(3pm)
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