mirror of
https://github.com/moparisthebest/pacman
synced 2024-12-22 15:58:50 -05:00
b3612e9cc1
Rework the frontend and backend to allow passing a ratio value in for UseDelta rather than having a hardcoded #define-d 0.7 value always used. This is useful for those with fast connections, who would likely benefit from tuning this ratio to lower values; it is also useful for general testing purposes. The libalpm API changes for this, but we do support the old config file format with a no-value 'UseDelta' option; in this case we simply use the old default of 0.7. We clamp the ratio values to a sane range between 0.0 and 2.0, allowing ratios above 1.0 for testing purposes. Signed-off-by: Dan McGee <dan@archlinux.org>
328 lines
13 KiB
Plaintext
328 lines
13 KiB
Plaintext
/////
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vim:set ts=4 sw=4 syntax=asciidoc noet spell spelllang=en_us:
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/////
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pacman.conf(5)
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==============
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Name
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----
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pacman.conf - pacman package manager configuration file
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Synopsis
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--------
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{sysconfdir}/pacman.conf
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Description
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-----------
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Pacman, using linkman:libalpm[3], will attempt to read pacman.conf each time it
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is invoked. This configuration file is divided into sections or repositories.
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Each section defines a package repository that pacman can use when searching
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for packages in '\--sync' mode. The exception to this is the options section,
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which defines global options.
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Example
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-------
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--------
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#
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# pacman.conf
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#
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[options]
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NoUpgrade = etc/passwd etc/group etc/shadow
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NoUpgrade = etc/fstab
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[core]
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Include = /etc/pacman.d/core
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[custom]
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Server = file:///home/pkgs
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--------
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NOTE: Each directive must be in CamelCase. If the case isn't respected, the
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directive won't be recognized. For example. noupgrade or NOUPGRADE will not
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work.
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Options
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-------
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*RootDir =* path/to/root::
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Set the default root directory for pacman to install to. This option is
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used if you want to install a package on a temporary mounted partition
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which is "owned" by another system, or for a chroot install.
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*NOTE*: If database path or logfile are not specified on either the
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command line or in linkman:pacman.conf[5], their default location will
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be inside this root path.
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*DBPath =* path/to/db/dir::
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Overrides the default location of the toplevel database directory. A
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typical default is +{localstatedir}/lib/pacman/+. Most users will not need to set
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this option. *NOTE*: if specified, this is an absolute path and the root
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path is not automatically prepended.
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*CacheDir =* path/to/cache/dir::
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Overrides the default location of the package cache directory. A typical
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default is +{localstatedir}/cache/pacman/pkg/+. Multiple cache directories can be
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specified, and they are tried in the order they are listed in the config
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file. If a file is not found in any cache directory, it will be downloaded
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to the first cache directory with write access. *NOTE*: this is an absolute
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path, the root path is not automatically prepended.
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*GPGDir =* path/to/gpg/dir::
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Overrides the default location of the directory containing configuration
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files for GnuPG. A typical default is +{sysconfdir}/pacman.d/gnupg/+.
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This directory should contain two files: `pubring.gpg` and `trustdb.gpg`.
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`pubring.gpg` holds the public keys of all packagers. `trustdb.gpg`
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contains a so-called trust database, which specifies that the keys are
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authentic and trusted.
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*NOTE*: this is an absolute path, the root path is not automatically
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prepended.
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*LogFile =* '/path/to/file'::
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Overrides the default location of the pacman log file. A typical default
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is +{localstatedir}/log/pacman.log+. This is an absolute path and the root directory
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is not prepended.
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*HoldPkg =* package ...::
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If a user tries to '\--remove' a package that's listed in `HoldPkg`,
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pacman will ask for confirmation before proceeding. Shell-style glob
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patterns are allowed.
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*IgnorePkg =* package ...::
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Instructs pacman to ignore any upgrades for this package when performing
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a '\--sysupgrade'. Shell-style glob patterns are allowed.
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*SyncFirst =* package ...::
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Instructs pacman to check for newer version of these packages before any
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sync operation. The user will have the choice to either cancel the current
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operation and upgrade these packages first or go on with the current
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operation. This option is typically used with the 'pacman' package.
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*NOTE*: when a `SyncFirst` transaction takes place, no command line flags
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(e.g. '\--force') are honored. If this is not ideal, disabling `SyncFirst`
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and performing a manual sync of the involved packages may be required.
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*IgnoreGroup =* group ...::
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Instructs pacman to ignore any upgrades for all packages in this
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group when performing a '\--sysupgrade'. Shell-style glob patterns are
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allowed.
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*Include =* path::
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Include another config file. This file can include repositories or
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general configuration options. Wildcards in the specified paths will get
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expanded based on linkman:glob[7] rules.
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*Architecture =* auto | i686 | x86_64 | ...::
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If set, pacman will only allow installation of packages of the given
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architecture (e.g. 'i686', 'x86_64', etc). The special value 'auto' will
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use the system architecture, provided by in ``uname -m''. If unset, no
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architecture checks are made. *NOTE*: packages with the special
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architecture 'any' can always be installed, as they are meant to be
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architecture independent.
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*XferCommand =* /path/to/command %u::
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If set, an external program will be used to download all remote files.
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All instances of `%u` will be replaced with the download URL. If present,
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instances of `%o` will be replaced with the local filename, plus a
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``.part'' extension, which allows programs like wget to do file resumes
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properly.
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+
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This option is useful for users who experience problems with built-in
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http/ftp support, or need the more advanced proxy support that comes with
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utilities like wget.
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*NoUpgrade =* file ...::
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All files listed with a `NoUpgrade` directive will never be touched during
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a package install/upgrade, and the new files will be installed with a
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'.pacnew' extension.
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These files refer to files in the package archive, so do not include the
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leading slash (the RootDir) when specifying them. Shell-style glob patterns
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are allowed.
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*NoExtract =* file ...::
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All files listed with a `NoExtract` directive will never be extracted from
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a package into the filesystem. This can be useful when you don't want part
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of a package to be installed. For example, if your httpd root uses an
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'index.php', then you would not want the 'index.html' file to be extracted
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from the 'apache' package.
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These files refer to files in the package archive, so do not include the
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leading slash (the RootDir) when specifying them. Shell-style glob patterns
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are allowed.
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*CleanMethod =* KeepInstalled &| KeepCurrent::
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If set to `KeepInstalled` (the default), the '-Sc' operation will clean
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packages that are no longer installed (not present in the local database).
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If set to `KeepCurrent`, '-Sc' will clean outdated packages (not present in
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any sync database).
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The second behavior is useful when the package cache is shared among
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multiple machines, where the local databases are usually different, but the
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sync databases in use could be the same. If both values are specified,
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packages are only cleaned if not installed locally and not present in any
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known sync database.
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*SigLevel =* ...::
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Set the default signature verification level. For more information, see
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<<SC,Package and Database Signature Checking>> below.
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*UseSyslog*::
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Log action messages through syslog(). This will insert log entries into
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+{localstatedir}/log/messages+ or equivalent.
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*UseDelta* [= ratio]::
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Download delta files instead of complete packages if possible. Requires
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the `xdelta3` program to be installed. If a ratio is specified (e.g.,
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`0.5`), then it is used as a cutoff for determining whether to use deltas.
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Allowed values are between `0.0` and `2.0`; sensible values are between
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`0.2` and `0.9`. Using a value above `1.0` is not recommended. The
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default is `0.7` if left unspecified.
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*TotalDownload*::
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When downloading, display the amount downloaded, download rate, ETA,
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and completed percentage of the entire download list rather
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than the percent of each individual download target. The progress
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bar is still based solely on the current file download.
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*CheckSpace*::
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Performs an approximate check for adequate available disk space before
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installing packages.
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*VerbosePkgLists*::
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Displays name, version and size of target packages formatted
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as a table for upgrade, sync and remove operations.
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Repository Sections
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-------------------
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Each repository section defines a section name and at least one location where
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the packages can be found. The section name is defined by the string within
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square brackets (the two above are 'current' and 'custom'). Locations are
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defined with the 'Server' directive and follow a URL naming structure. If you
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want to use a local directory, you can specify the full path with a ``file://''
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prefix, as shown above.
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A common way to define DB locations utilizes the 'Include' directive. For each
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repository defined in the configuration file, a single 'Include' directive can
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contain a file that lists the servers for that repository.
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--------
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[core]
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# use this server first
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Server = ftp://ftp.archlinux.org/$repo/os/$arch
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# next use servers as defined in the mirrorlist below
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Include = {sysconfdir}/pacman.d/mirrorlist
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--------
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The order of repositories in the configuration files matters; repositories
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listed first will take precedence over those listed later in the file when
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packages in two repositories have identical names, regardless of version
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number.
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*Include =* path::
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Include another config file. This file can include repositories or
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general configuration options. Wildcards in the specified paths will get
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expanded based on linkman:glob[7] rules.
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*Server =* url::
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A full URL to a location where the database, packages, and signatures (if
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available) for this repository can be found.
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+
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During parsing, pacman will define the `$repo` variable to the name of the
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current section. This is often utilized in files specified using the 'Include'
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directive so all repositories can use the same mirrorfile. pacman also defines
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the `$arch` variable to the value of `Architecture`, so the same mirrorfile can
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even be used for different architectures.
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*SigLevel =* ...::
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Set the signature verification level for this repository. For more
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information, see <<SC,Package and Database Signature Checking>> below.
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Package and Database Signature Checking
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---------------------------------------
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The 'SigLevel' directive is valid in both the `[options]` and repository
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sections. If used in `[options]`, it sets a default value for any repository
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that does not provide the setting.
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* If set to *Never*, no signature checking will take place.
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* If set to *Optional* , signatures will be checked when present, but unsigned
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databases and packages will also be accepted.
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* If set to *Required*, signatures will be required on all packages and
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databases.
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Alternatively, you can get more fine-grained control by combining some of
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the options and prefixes described below. All options in a config file are
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processed in top-to-bottom, left-to-right fashion, where later options override
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and/or supplement earlier ones. If 'SigLevel' is specified in a repository
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section, the starting value is that from the `[options]` section, or the
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built-in system default as shown below if not specified.
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The options are split into two main groups, described below. Terms used such as
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``marginally trusted'' are terms used by GnuPG, for more information please
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consult linkman:gpg[1].
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When to Check::
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These options control if and when signature checks should take place.
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*Never*;;
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All signature checking is suppressed, even if signatures are present.
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*Optional* (default);;
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Signatures are checked if present; absence of a signature is not an
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error. An invalid signature is a fatal error, as is a signature from a
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key not in the keyring.
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*Required*;;
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Signatures are required; absence of a signature or an invalid signature
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is a fatal error, as is a signature from a key not in the keyring.
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What is Allowed::
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These options control what signatures are viewed as permissible. Note that
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neither of these options allows acceptance of invalid or expired
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signatures, or those from revoked keys.
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*TrustedOnly* (default);;
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If a signature is checked, it must be in the keyring and fully trusted;
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marginal trust does not meet this criteria.
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*TrustAll*;;
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If a signature is checked, it must be in the keyring, but is not
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required to be assigned a trust level (e.g., unknown or marginal
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trust).
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Options in both groups can additionally be prefixed with either *Package* or
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*Database*, which will cause it to only take effect on the specified object
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type. For example, `PackageTrustAll` would allow marginal and unknown trust
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level signatures for packages.
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The built-in default is the following:
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--------
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SigLevel = Optional TrustedOnly
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--------
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Using Your Own Repository
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-------------------------
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If you have numerous custom packages of your own, it is often easier to generate
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your own custom local repository than install them all with the '\--upgrade'
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option. All you need to do is generate a compressed package database in the
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directory with these packages so pacman can find it when run with '\--refresh'.
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repo-add /home/pkgs/custom.db.tar.gz /home/pkgs/*.pkg.tar.gz
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The above command will generate a compressed database named
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'/home/pkgs/custom.db.tar.gz'. Note that the database must be of the form
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'\{treename\}.db.tar.{ext}', where '\{treename\}' is the name of the section
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defined in the configuration file and '\{ext\}' is a valid compression type as
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documented in linkman:repo-add[8]. That's it! Now configure your custom section
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in the configuration file as shown in the config example above. Pacman will now
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use your package repository. If you add new packages to the repository,
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remember to re-generate the database and use pacman's '\--refresh' option.
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For more information on the repo-add command, see ``repo-add \--help'' or
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linkman:repo-add[8].
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See Also
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--------
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linkman:pacman[8], linkman:libalpm[3]
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include::footer.txt[]
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