Index of apt package manager options

apt-config-examples

/* This file is an index of all APT configuration directives.
   Instead of actual values the option has the type as value.
   Additional explanations and possible values might be detailed in a comment.

   Most of the options have sane default values,
   unless you have specific needs you should NOT include arbitrary
   items in a custom configuration.

   In some instances involving filenames it is possible to set the default
   directory when the path is evaluated. This means you can use relative
   paths within the sub scope.

   The configuration directives are specified in a tree with {} designating
   a subscope relative to the tag before the {}. You can further specify
   a subscope using scope notation e.g.,
     APT::Architecture "i386";
   This is prefixed with the current scope. Scope notation must be used
   if an option is specified on the command line with -o.

   The most complex type is perhaps <LIST>:
      APT::Architectures "<LIST>";
   In configuration files it usually appears as a subscope of its own like:
      APT::Architectures { "amd64"; "i386"; };
   but the same can be achieved with (needed for commandline)
      APT::Architectures "amd64,i386";
   which overrides the values in the scope notation.

   See apt.conf manpage for a detailed description of many common options
   and the syntax of configuration files and commandline options!
*/

quiet "<INT>" {
  NoUpdate "<BOOL>"; // never update progress information - included in -q=1
  NoProgress "<BOOL>"; // disables the 0% → 100% progress on cache generation and stuff
  NoStatistic "<BOOL>"; // no "42 kB downloaded" stats in update
  ReleaseInfoChange "<BOOL>" // don't even print the notices if the info change is allowed
  {
    Origin "<BOOL>";
    Label "<BOOL>";
    Version "<BOOL>";
    Codename "<BOOL>";
    Suite "<BOOL>";
    DefaultPin "<BOOL>";
  };
};

// Options for APT in general
APT
{
  Architecture "<STRING>"; // debian architecture like amd64, i386, powerpc, armhf, mips, …
  Architectures "<LIST>"; // a list of (foreign) debian architectures, defaults to: dpkg --print-foreign-architectures
  BarbarianArchitectures "<LIST>"; // a list of architectures considered too foreign to satisfy M-A:foreign

  Build-Essential "<LIST>"; // list of package names
  Build-Profiles "<STRING_OR_LIST>";

  NeverAutoRemove "<LIST>";  // list of package name regexes
  LastInstalledKernel "<STRING>"; // last installed kernel version
  VersionedKernelPackages "<LIST>"; // regular expressions to be protected from autoremoval (kernel uname will be appended)
  Protect-Kernels "<BOOL>"; // whether to protect installed kernels against autoremoval (default: true)

  // Currently active snapshot
  Snapshot "<STRING>";

  // Options for apt-get
  Get
  {
     // build-dep options:
     Host-Architecture "<STRING>"; // debian architecture
     Arch-Only "<BOOL>";
     Indep-Only "<BOOL>";
     Build-Dep-Automatic "<BOOL>";
     Satisfy-Automatic "<BOOL>";

     // (non-)confirming options
     Force-Yes "<BOOL>"; // allows downgrades, essential removal and eats children
     Allow-Downgrades "<BOOL>";
     Allow-Change-Held-Packages "<BOOL>";
     Allow-Remove-Essential "<BOOL>";
     Allow-Solver-Remove-Essential "<BOOL>";
     Assume-Yes "<BOOL>"; // not as dangerous, but use with care still
     Assume-No "<BOOL>";
     Trivial-Only "<BOOL>";
     Mark-Auto "<BOOL>";
     Remove "<BOOL>";
     AllowUnauthenticated "<BOOL>"; // skip security

     AutomaticRemove "<BOOL>" {
        "Kernels" "<BOOL>";     // Allow removing kernels even if not removing other packages (true for dist-upgrade)
     };
     HideAutoRemove "<STRING_OR_BOOL>"; // yes, no, small

     Simulate "<BOOL>";
     Show-User-Simulation-Note "<BOOL>";
     Fix-Broken "<BOOL>";
     Fix-Policy-Broken "<BOOL>";

     Download "<BOOL>";
     Download-Only "<BOOL>";
     Fix-Missing "<BOOL>";
     Print-URIs "<BOOL>";
     List-Cleanup "<BOOL>";

     Show-Upgraded "<BOOL>";
     Show-Versions "<BOOL>";
     Upgrade "<BOOL>";
     Only-Upgrade "<BOOL>";
     Upgrade-Allow-New "<BOOL>";
     Upgrade-By-Source-Package "<BOOL>";
     Always-Include-Phased-Updates "<BOOL>";
     Never-Include-Phased-Updates "<BOOL>";
     Phase-Policy "<BOOL>"; // internal
     Purge "<BOOL>";
     ReInstall "<BOOL>";
     Compile "<BOOL>";
     Only-Source "<BOOL>";
     Diff-Only "<BOOL>";
     Tar-Only "<BOOL>";
     Dsc-Only "<BOOL>";

     Autosolving "<BOOL>";
     CallResolver "<BOOL>";
     IndexTargets::ReleaseInfo "<BOOL>";
     IndexTargets::format "<STRING>";

     Update
     {
        InteractiveReleaseInfoChanges "<BOOL>";
        SourceListWarnings "<BOOL>"
        {
           APTAuth "<BOOL>";
           NonFreeFirmware "<BOOL>";
           SignedBy "<BOOL>";
        };
     };
  };

  Cache
  {
     AllNames "<BOOL>";
     AllVersions "<BOOL>";
     Only-Source "<BOOL>";
     GivenOnly "<BOOL>";
     RecurseDepends "<BOOL>";
     Installed "<BOOL>";
     Important "<BOOL>";
     ShowDependencyType "<BOOL>";
     ShowVersion "<BOOL>";
     ShowPre-Depends "<BOOL>";
     ShowDepends "<BOOL>";
     ShowRecommends "<BOOL>";
     ShowSuggests "<BOOL>";
     ShowReplaces "<BOOL>";
     ShowConflicts "<BOOL>";
     ShowBreaks "<BOOL>";
     ShowEnhances "<BOOL>";
     ShowOnlyFirstOr "<BOOL>";
     ShowImplicit "<BOOL>";
     ShowVirtuals "<BOOL>";
     ShowFull "<BOOL>";
     NamesOnly "<BOOL>";

     show::version "<INT>";
     search::version "<INT>";
  };

  CDROM
  {
     Rename "<BOOL>";
     NoMount "<BOOL>";
     Fast "<BOOL>";
     NoAct "<BOOL>";
     Thorough "<BOOL>";
     DropTranslation "<BOOL>";
  };

  Update "<BOOL>"
  {
     Pre-Invoke {"touch /var/lib/apt/pre-update-stamp"; };
     Post-Invoke {"touch /var/lib/apt/post-update-stamp"; };
     Error-Mode "<STRING>";
  };

  /* define a new supported compressor on the fly
  Compressor::rev {
     Name "rev";
     Extension ".reversed";
     Binary "rev";
     CompressArg {};
     UncompressArg {};
     Cost "10";
  };
  */
  Compressor "<LIST>";
  Compressor::** "<UNDEFINED>";

  Authentication
  {
     TrustCDROM "false"; // consider the CD-ROM always trusted
  };

  Clean-Installed "<BOOL>";

  // Some general options
  Default-Release "<STRING>";
  Ignore-Hold "<BOOL>";
  Immediate-Configure "<BOOL>";
  Immediate-Configure-All "<BOOL>";
  Force-LoopBreak "<BOOL>";

  Cache-Start "<INT>";
  Cache-Grow "<INT>";
  Cache-Limit "<INT>";
  Cache-Fallback "<BOOL>";
  Cache-HashTableSize "<INT>";

  // consider Recommends/Suggests as important dependencies that should
  // be installed by default
  Install-Recommends "<BOOL>";
  Install-Suggests "<BOOL>";
  // reverse Recommends or Suggests prevent autoremoval
  AutoRemove::RecommendsImportant "<BOOL>";
  AutoRemove::SuggestsImportant "<BOOL>";

  // consider dependencies of packages in this section manual
  Never-MarkAuto-Sections {"metapackages"; "universe/metapackages"; };

  // Write progress messages on this fd (for stuff like base-config)
  Status-Fd "<INT>";
  Status-deb822-Fd "<INT>";
  // Keep the list of FDs open (normally apt closes all fds when it
  // does a ExecFork)
  Keep-Fds {};

  // control parameters for cron jobs by /etc/cron.daily/apt documented there
  Periodic {};

  Machine-ID "<STRING>"; // Value of /etc/machine-id
};

// Options for the downloading routines
Acquire
{
  Queue-Mode "<STRING>";       // host or access
  Retries "<INT>" {
      Delay "<BOOL>" {   // whether to backoff between retries using the delay: method
        Maximum "<INT>"; // maximum number of seconds to delay an item per retry
      };
  };
  Source-Symlinks "<BOOL>";
  ForceHash "<STRING>"; // hashmethod used for expected hash: sha256, sha1 or md5sum
  Send-URI-Encoded "<BOOL>"; // false does the old encode/decode dance even if we could avoid it
  URIEncode "<STRING>"; // characters to encode with percent encoding

  AllowTLS "<BOOL>";    // whether support for tls is enabled

  PDiffs "<BOOL>"; // try to get the IndexFile diffs
  PDiffs::FileLimit "<INT>"; // don't use diffs if we would need more than 4 diffs
  PDiffs::SizeLimit "<INT>"; // don't use diffs if size of all patches excess X% of the size of the original file
  PDiffs::Merge "<BOOL>";

  Check-Valid-Until "<BOOL>";
  Max-ValidTime "<INT>"; // time in seconds
  Max-ValidTime::* "<INT>"; // repository label specific configuration
  Min-ValidTime "<INT>"; // time in seconds
  Min-ValidTime::* "<INT>"; // repository label specific configuration
  Check-Date "<BOOL>"; // whether to check the "Date" field
  Max-FutureTime "<INT>"; // seconds to allow release file's Date field to be in the future (default 10)
  Max-FutureTime::* "<INT>"; // repository label specific configuration

  SameMirrorForAllIndexes "<BOOL>"; // use the mirror serving the Release file for Packages & co

  AllowInsecureRepositories "<BOOL>";
  AllowWeakRepositories "<BOOL>";
  AllowDowngradeToInsecureRepositories "<BOOL>";
  AllowUnsizedPackages "<BOOL>";
  // allow repositories to change information potentially breaking user config like pinning
  AllowReleaseInfoChange "<BOOL>"
  {
    Origin "<BOOL>";
    Label "<BOOL>";
    Version "<BOOL>"; // allowed by default
    Codename "<BOOL>";
    Suite "<BOOL>";
    DefaultPin "<BOOL>";
  };

  // HTTP method configuration
  http
  {
    Proxy "http://127.0.0.1:3128";
    Proxy::http.us.debian.org "DIRECT";  // Specific per-host setting
    Timeout "30";
    ConnectionAttemptDelayMsec "250";
    Pipeline-Depth "5";
    AllowRanges "<BOOL>";
    AllowRedirect "<BOOL>";

    // Cache Control. Note these do not work with Squid 2.0.2
    No-Cache "false";
    Max-Age "86400";     // 1 Day age on index files
    No-Store "false";    // Prevent the cache from storing archives
    Dl-Limit "<INT>"; // Kb/sec maximum download rate
    User-Agent "Debian APT-HTTP/1.3";
    User-Agent-Non-Interactive "false"; // include non-interactive if run in systemd service (true on Ubuntu)
    Referer "<STRING>"; // Set the HTTP Referer [sic!] header to given value
  };

  // HTTPS method configuration: uses the http
  // - proxy config
  // - cache-control values
  // - Dl-Limit, Timeout, ... values
  // if not set explicit for https
  https
  {
	Verify-Peer "false";
	SslCert "/etc/apt/some.pem";
	CaPath  "/etc/ssl/certs";
	Verify-Host "true";
	AllowRanges "<BOOL>";
	AllowRedirect "<BOOL>";

	Timeout "30";
	ConnectionAttemptDelayMsec "250";

	// Cache Control. Note these do not work with Squid 2.0.2
	No-Cache "false";
	Max-Age "86400";     // 1 Day age on index files
	No-Store "false";    // Prevent the cache from storing archives
	Dl-Limit "<INT>"; // Kb/sec maximum download rate

	User-Agent "Debian APT-CURL/1.0";
  };

  ftp
  {
    Proxy "ftp://127.0.0.1/";
    Proxy::http.us.debian.org "DIRECT"; // Specific per-host setting

    /* Required script to perform proxy login. This example should work
       for tisfwtk */
    ProxyLogin
    {
       "USER $(PROXY_USER)";
       "PASS $(PROXY_PASS)";
       "USER $(SITE_USER)@$(SITE):$(SITE_PORT)";
       "PASS $(SITE_PASS)";
    };
    
    Timeout "30";
    ConnectionAttemptDelayMsec "250";
    
    /* Passive mode control, proxy, non-proxy and per-host. Pasv mode
       is preferred if possible */
    Passive "true";
    Proxy::Passive "true";
    Passive::http.us.debian.org "true"; // Specific per-host setting
  };
  
  cdrom
  {
    AutoDetect "<BOOL>"; // do auto detection of the cdrom mountpoint
    // when auto-detecting, only look for cdrom/dvd. when this is false
    // it will support any removable device as a "cdrom" source
    CdromOnly "true";
    
    // cdrom mountpoint (needs to be defined in fstab if AutoDetect is not used)
    mount "/cdrom";

    // You need the trailing slash!
    "/cdrom/"
    {
       Mount "sleep 1000";
       UMount "sleep 500";
    }
  };

  gpgv
  {
   Options {"--ignore-time-conflict";}	// not very useful on a normal system
  };

  /* CompressionTypes
  {
    bz2 "bzip2";
    lzma "lzma";
    gz "gzip";

    Order { "uncompressed"; "gz"; "lzma"; "bz2"; };
  }; */
  CompressionTypes::Order "<LIST>";
  CompressionTypes::* "<STRING>";

  Languages "<LIST>"; // "environment,de,en,none,fr";

  // Location of the changelogs with the placeholder @CHANGEPATH@ (e.g. "main/a/apt/apt_1.1")
  Changelogs::URI
  {
    // Origin::Debian "https://metadata.ftp-master.debian.org/changelogs/@CHANGEPATH@_changelog";
    Origin::* "<STRING>";
    Label::* "<STRING>";
    Override::Origin::* "<STRING>";
    Override::Label::* "<STRING>";
  };
  Snapshots::URI
  {
    Host::* "<STRING>";
    // Origin::Debian "https://snapshot.debian.org/snapshot/@SNAPSHOTID@/";
    Origin::* "<STRING>";
    Label::* "<STRING>";
    Override::Origin::* "<STRING>";
    Override::Label::* "<STRING>";
  };
  Changelogs::AlwaysOnline "<BOOL>"; // even if the changelog file exists get it online (as the file is incomplete)
  Changelogs::AlwaysOnline::Origin::* "<BOOL>";
};

// Directory layout
Dir "<DIR>"
{
  Ignore-Files-Silently "<LIST>"; // of regexes: "\.dpkg-[a-z]+$,\.bak$,~$";

  // Location of the state dir
  State "<DIR>"
  {
     Lists "<DIR>";
     status "<FILE>";
     extended_states "<FILE>";
     cdroms "<FILE>";
  };

  // Location of the cache dir
  Cache "<DIR>" {
     Archives "<DIR>";
     Backup "backup/"; // backup directory created by /etc/cron.daily/apt
     srcpkgcache "<FILE>";
     pkgcache "<FILE>";
  };

  // Config files
  Etc "<DIR>" {
     Main "<FILE>";
     Netrc "<FILE>";
     NetrcParts "<DIR>";
     Parts "<DIR>";
     Preferences "<FILE>";
     PreferencesParts "<DIR>";
     SourceList "<FILE>";
     SourceParts "<DIR>";
     Trusted "<FILE>";
     TrustedParts "<DIR>";
     Machine-ID "<FILE>";   // by default points to ../machine-id effectively
  };

  // Locations of binaries
  Bin {
     methods "<DIR>";
     methods::* "<FILE>";
     gpg  "/usr/bin/gpgv";
     dpkg "<PROGRAM_PATH>";
     dpkg-source "<PROGRAM_PATH>";
     dpkg-buildpackage "/usr/bin/dpkg-buildpackage";
     lz4 "<PROGRAM_PATH>";
     zstd "<PROGRAM_PATH>";
     gzip "<PROGRAM_PATH>";
     xz "<PROGRAM_PATH>";
     bzip2 "<PROGRAM_PATH>";
     lzma "<PROGRAM_PATH>";
     uncompressed "<PROGRAM_PATH>";
     ischroot "<PROGRAM_PATH>";

     solvers "<LIST>"; // of directories
     planners "<LIST>"; // of directories
  };

  // Location of the logfiles
  Log "<DIR>" {
     Terminal "<FILE>";
     History "<FILE>";
     Solver "<FILE>";
     Planner "<FILE>";
  };

  Media
  {
     MountPath "/media/apt"; // Media AutoDetect mount path
  };
};

// Things that effect the APT dselect method
DSelect
{
   Clean "auto";   // always|auto|prompt|never
   Options "-f";
   UpdateOptions "";
   PromptAfterUpdate "no";
   CheckDir "no";
}

DPkg
{
   NoTriggers "<BOOL>";
   ConfigurePending "<BOOL>";
   TriggersPending "<BOOL>";

   // Probably don't want to use force-downgrade..
   Options {"--force-overwrite";"--force-downgrade";}

   // Defaults to /usr/sbin:/usr/bin:/sbin:/bin, might be set to empty
   // string to inherit from environment
   Path "<STRING>";

   // Auto re-mounting of a readonly /usr
   Pre-Invoke {"mount -o remount,rw /usr";};
   Post-Invoke {"mount -o remount,ro /usr";};

   Chroot-Directory "/";

   // Prevents daemons from getting cwd as something mountable (default)
   Run-Directory "/";

   // Build options for apt-get source --compile
   Build-Options "-b -uc";

   // Pre-configure all packages before they are installed using debconf.
   Pre-Install-Pkgs {"dpkg-preconfigure --apt --priority=low --frontend=dialog";};

   // Flush the contents of stdin before forking dpkg.
   FlushSTDIN "true";

   MaxArgBytes "<INT>"; // Control the size of the command line passed to dpkg.
   Install::Recursive "<BOOL>" // avoid long commandlines by recursive install in a tmpdir
   {
      force "<BOOL>"; // not all dpkg versions support this, so autodetection is default
      minimum "<INT>"; // don't bother if its just a few packages
      numbered "<BOOL>"; // avoid M-A:same ordering bug in dpkg
   };

   UseIONice "<BOOL>";

   // controls if apt will apport on the first dpkg error or if it 
   // tries to install as many packages as possible
   StopOnError "true";

   Progress-Fancy {
      progress-fg "<STRING>";
      progress-bg "<STRING>";
      progress-bar "<BOOL>";
   };

   // Set a shutdown block inhibitor on systemd systems while running dpkg
   Inhibit-Shutdown "<BOOL>";
}

/* Options you can set to see some debugging text They correspond to names
   of classes in the source code */
Debug 
{
  pkgInitConfig "<BOOL>";
  pkgProblemResolver "<BOOL>";
  pkgProblemResolver::ShowScores "<BOOL>";
  pkgDepCache::AutoInstall "<BOOL>"; // what packages apt installs to satisfy dependencies
  pkgDepCache::Marker "<BOOL>";
  pkgCacheGen "<BOOL>";
  pkgAcquire "<BOOL>";
  pkgAcquire::Worker "<BOOL>";
  pkgAcquire::Auth "<BOOL>";
  pkgAcquire::Diffs "<BOOL>";
  pkgDPkgPM "<BOOL>";
  pkgDPkgProgressReporting "<BOOL>";
  pkgOrderList "<BOOL>";
  pkgPackageManager "<BOOL>"; // OrderList/Configure debugging
  pkgAutoRemove "<BOOL>";   // show information about automatic removes
  BuildDeps "<BOOL>";
  pkgInitialize "<BOOL>";   // This one will dump the configuration space
  NoLocking "<BOOL>";
  Acquire::Ftp "<BOOL>";    // Show ftp command traffic
  Acquire::Http "<BOOL>";   // Show http command traffic
  Acquire::Https "<BOOL>";   // Show https debug
  Acquire::gpgv "<BOOL>";   // Show the gpgv traffic
  Acquire::cdrom "<BOOL>";   // Show cdrom debug output
  Acquire::Transaction "<BOOL>";
  Acquire::Progress "<BOOL>";
  Acquire::Retries "<BOOL>";    // Debugging for retries, especially delays
  aptcdrom "<BOOL>";        // Show found package files
  IdentCdrom "<BOOL>";
  acquire::netrc "<BOOL>";  // netrc parser
  RunScripts "<BOOL>";      // debug invocation of external scripts
  pkgPolicy "<BOOL>";
  GetListOfFilesInDir "<BOOL>";
  pkgAcqArchive::NoQueue "<BOOL>";
  Hashes "<BOOL>";
  APT::FtpArchive::Clean "<BOOL>";
  EDSP::WriteSolution "<BOOL>";
  InstallProgress::Fancy "<BOOL>";
  APT::Progress::PackageManagerFd "<BOOL>";
  SetupAPTPartialDirectory::AssumeGood "<BOOL>";
  Locking "<BOOL>";
  Phasing "<BOOL>";
};

pkgCacheGen
{
  Essential "<STRING>"; // native,all, none, installed
  Protected "<STRING>"; // native,all, none, installed
  ForceEssential "<STRING_OR_LIST>"; // package names
  ForceImportant "<LIST>"; // package names
};

// modify points awarded for various facts about packages while
// resolving conflicts in the dependency resolution process
pkgProblemResolver::Scores
{
  Required "<INT>";
  Important "<INT>";
  Standard "<INT>";
  Optional "<INT>";
  Extra "<INT>";
  Essentials "<INT>";
  NotObsolete "<INT>";
  Depends "<INT>";
  PreDepends "<INT>";
  Suggests "<INT>";
  Recommends "<INT>";
  Conflicts "<INT>";
  Replaces "<INT>";
  Obsoletes "<INT>";
  Breaks "<INT>";
  Enhances "<INT>";
  AddProtected "<INT>";
  AddEssential "<INT>";
};
pkgProblemResolver::FixByInstall "<BOOL>";
pkgProblemResolver::MaxCounter "<INT>";

APT::FTPArchive::release
{
   Default-Patterns "<BOOL>";
   NumericTimezone "<BOOL>";

   // set specific fields in the generated Release file
   Acquire-By-Hash "<BOOL>";
   ButAutomaticUpgrades "<BOOL>";
   NotAutomatic "<BOOL>";
   MD5 "<BOOL>";
   SHA1 "<BOOL>";
   SHA256 "<BOOL>";
   SHA512 "<BOOL>";
   Architectures "<STRING>";
   Codename "<STRING>";
   Components "<STRING>";
   Date "<STRING>";
   Description "<STRING>";
   Label "<STRING>";
   Origin "<STRING>";
   Signed-by "<STRING>";
   Suite "<STRING>";
   Version "<STRING>";
};

Debug::NoDropPrivs "<BOOL>";
APT::Sandbox
{
   User "<STRING>";
   ResetEnvironment "<BOOL>";
   Verify "<BOOL>"
   {
      Groups "<BOOL>";
      IDs "<BOOL>";
      Regain "<BOOL>";
   };
   seccomp "<BOOL>"
   {
      print "<BOOL>"; // print what syscall was trapped
      allow "<LIST>";
      trap "<LIST>";
   };
};

// having both seems wrong
dpkgpm::progress "<BOOL>";
dpkg::progress "<BOOL>";
apt::acquire::by-hash "<STRING>";
acquire::by-hash "<STRING>";
apt::acquire::*::by-hash "<STRING>";
acquire::*::by-hash "<STRING>";

// Unsorted options: Some of those are used only internally

help "<BOOL>"; // true if the help message was requested via e.g. --help
version "<BOOL>"; // true if the version number was requested via e.g. --version
Binary "<STRING>"; // name of the program run like apt-get, apt-cache, …

dir::locale "<DIR>";
dir::bin::dpkg-source "<STRING>";

pkgcachefile::generate "<BOOL>";
packagemanager::unpackall "<BOOL>";
packagemanager::configure "<STRING>";
commandline::asstring "<STRING>";
edsp::scenario "<STRING>";
eipp::scenario "<STRING>";
cd::* "<STRING>"; // added CDRoms are stored as config

orderlist::score::delete "<INT>";
orderlist::score::essential "<INT>";
orderlist::score::immediate "<INT>";
orderlist::score::predepends "<INT>";

apt::sources::with "<LIST>";
apt::moo::color "<BOOL>";
apt::pkgpackagemanager::maxloopcount "<INT>";
apt::hashes::*::untrusted "<BOOL>";
apt::list-cleanup "<BOOL>";
apt::authentication::trustcdrom "<BOOL>";
apt::solver::strict-pinning "<BOOL>";
apt::keep-downloaded-packages "<BOOL>";
apt::solver "<STRING>";
apt::planner "<STRING>";
apt::system "<STRING>";
apt::acquire::translation "<STRING>"; // deprecated in favor of Acquire::Languages
apt::color::highlight "<STRING>";
apt::color::neutral "<STRING>";

dpkgpm::reporting-steps "<INT>";

dpkg::chroot-directory "<DIR>";
dpkg::tools::options::** "<UNDEFINED>";
dpkg::source-options "<STRING>";
dpkg::progress-fancy "<BOOL>";
dpkg::selection::remove::approved "<BOOL>";
dpkg::remove::crossgrade::implicit "<BOOL>";
dpkg::selection::current::saveandrestore "<BOOL>";
dpkg::use-pty "<BOOL>";
dpkg::lock::timeout "<INT>";

apt::cmd::disable-script-warning "<BOOL>";
apt::cmd::show-update-stats "<BOOL>";
apt::cmd::use-format "<BOOL>";
apt::cmd::manual-installed "<BOOL>";
apt::cmd::upgradable "<BOOL>";
apt::cmd::installed "<BOOL>";
apt::cmd::list-include-summary "<BOOL>";
apt::cmd::use-regexp "<BOOL>";
apt::cmd::all-versions "<BOOL>";
apt::cmd::format "<STRING>";
apt::cmd::pattern-only "<BOOL>";  // internal

apt::config::dump::emptyvalue "<BOOL>";
apt::config::dump::format "<STRING>";

apt::mark::simulate "<BOOL>";
apt::markauto::verbose "<BOOL>";
apt::sortpkgs::source "<BOOL>";
apt::extracttemplates::tempdir "<STRING>";

apt::key::archivekeyring "<STRING>";
apt::key::removedkeys "<STRING>";
apt::key::gpgvcommand "<STRING>";
apt::key::gpgcommand "<STRING>";
apt::key::masterkeyring "<STRING>";
apt::key::archivekeyringuri "<STRING>";
apt::key::net-update-enabled "<STRING>";

apt::ftparchive::release::patterns "<LIST>";
apt::ftparchive::release::validtime "<INT>";
apt::ftparchive::by-hash-keep "<INT>";
apt::ftparchive::delinkact "<BOOL>";
apt::ftparchive::md5 "<BOOL>";
apt::ftparchive::sha1 "<BOOL>";
apt::ftparchive::sha256 "<BOOL>";
apt::ftparchive::sha512 "<BOOL>";
apt::ftparchive::dobyhash "<BOOL>";
apt::ftparchive::showcachemisses "<BOOL>";
apt::ftparchive::sources::md5 "<BOOL>";
apt::ftparchive::sources::sha1 "<BOOL>";
apt::ftparchive::sources::sha256 "<BOOL>";
apt::ftparchive::sources::sha512 "<BOOL>";
apt::ftparchive::packages::md5 "<BOOL>";
apt::ftparchive::packages::sha1 "<BOOL>";
apt::ftparchive::packages::sha256 "<BOOL>";
apt::ftparchive::packages::sha512 "<BOOL>";
apt::ftparchive::dobyhash "<BOOL>";
apt::ftparchive::readonlydb "<BOOL>";
apt::ftparchive::nooverridemsg "<BOOL>";
apt::ftparchive::alwaysstat "<BOOL>";
apt::ftparchive::contents "<BOOL>";
apt::ftparchive::contentsonly "<BOOL>";
apt::ftparchive::longdescription "<BOOL>";
apt::ftparchive::includearchitectureall "<BOOL>";
apt::ftparchive::architecture "<STRING>";
apt::ftparchive::db "<STRING>";
apt::ftparchive::sourceoverride "<STRING>";

apt-helper::cat-file::compress "<STRING>";

acquire::cdrom::mount "<DIR>";
acquire::maxreleasefilesize "<INT>";
acquire::queuehost::limit "<INT>";
acquire::max-pipeline-depth "<INT>";
acquire::progress::diffpercent "<BOOL>";
acquire::gzipindexes "<BOOL>";
acquire::indextargets::randomized "<BOOL>";
acquire::indextargets::deb::** "<UNDEFINED>";
acquire::indextargets::deb-src::** "<UNDEFINED>";
acquire::progress::ignore::showerrortext "<BOOL>";
acquire::*::dl-limit "<INT>"; // catches file: and co which do not have these
methods::mirror::problemreporting "<STRING>";
acquire::http::proxyautodetect "<STRING>";
acquire::http::proxy-auto-detect "<STRING>";
acquire::http::proxy::* "<STRING>";
acquire::https::proxyautodetect "<STRING>";
acquire::https::proxy-auto-detect "<STRING>";
acquire::https::proxy::* "<STRING>";

// Options used by apt-ftparchive
dir::archivedir "<DIR>";
dir::cachedir "<DIR>";
dir::overridedir "<DIR>";
filemode "<INT>";
longdescription "<BOOL>";
external-links "<BOOL>";
default::contentsage "<INT>";
default::maxcontentschange "<INT>";
default::filemode "<INT>";
default::longdescription "<BOOL>";
default::translation::compress "<STRING>";
default::contents::compress "<STRING>";
default::sources::compress "<STRING>";
default::packages::compress "<STRING>";
default::sources::extensions "<STRING>";
default::packages::extensions "<STRING>";
treedefault::directory "<STRING>";
treedefault::srcdirectory "<STRING>";
treedefault::packages "<STRING>";
treedefault::translation "<STRING>";
treedefault::internalprefix "<STRING>";
treedefault::contents "<STRING>";
treedefault::contents::header "<STRING>";
treedefault::bincachedb "<STRING>";
treedefault::srccachedb "<STRING>";
treedefault::sources "<STRING>";
treedefault::filelist "<STRING>";
treedefault::sourcefilelist "<STRING>";
sections "<STRING>";
architectures "<STRING>";
binoverride "<STRING>";
internalprefix "<STRING>";
bincachedb "<STRING>";
directory "<STRING>";
packages "<STRING>";
translation "<STRING>";
contents "<STRING>";
filelist "<STRING>";
extraoverride "<STRING>";
pathprefix "<STRING>";
srcdirectory "<STRING>";
sources "<STRING>";
sourcefilelist "<STRING>";
srcextraoverride "<STRING>";
srccachedb "<STRING>";
srcoverride "<STRING>";
contents::header "<STRING>";
packages::compress "<STRING>";
sources::compress "<STRING>";
contents::compress "<STRING>";
translation::compress "<STRING>";
sources::extensions "<STRING>";
packages::extensions "<STRING>";
dir::filelistdir "<STRING>";

// Internal code.
dir::dpkg::tupletable "<FILE>";
dir::dpkg::triplettable "<FILE>";
dir::dpkg::cputable "<FILE>";
Rred::t "<BOOL>";
Rred::f "<BOOL>";
Rred::Compress "<STRING>";

APT::Internal::OpProgress::Absolute "<BOOL>";
APT::Color "<BOOL>";

update-manager::always-include-phased-updates "<BOOL>";
update-manager::never-include-phased-updates "<BOOL>";