X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/3e68f7e41022790619c698a32390a5256fadba7c..6aef1942f441e6e667982b92802907026d8cc7c6:/doc/apt.conf.5.xml diff --git a/doc/apt.conf.5.xml b/doc/apt.conf.5.xml index efe986ea8..2bb814257 100644 --- a/doc/apt.conf.5.xml +++ b/doc/apt.conf.5.xml @@ -54,6 +54,8 @@ configuration list - in which case it will be silently ignored. the main configuration file specified by Dir::Etc::main + all options set in the binary specific configuration + subtree are moved into the root of the tree. the command line options are applied to override the configuration directives or to load even more configuration files. @@ -301,6 +303,8 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";}; Valid-Until header, but if they don't or a stricter value is desired the Max-ValidTime option below can be used. + The option of &sources-list; entries should be + preferred to disable the check selectively instead of using this global override. @@ -312,7 +316,8 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";}; the earlier date of the two is used as the expiration date. The default value is 0 which stands for "valid forever". Archive specific settings can be made by appending the label of the archive - to the option name. + to the option name. Preferably, the same can be achieved for specific + &sources-list; entries by using the option there. @@ -324,14 +329,17 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";}; frequently updated archive with a Valid-Until header instead of completely disabling the expiration date checking. Archive specific settings can and should be used by appending the label of - the archive to the option name. + the archive to the option name. Preferably, the same can be achieved for specific + &sources-list; entries by using the option there. Try to download deltas called PDiffs for - indexes (like Packages files) instead of downloading - whole ones. True by default. + indexes (like Packages files) instead of + downloading whole ones. True by default. Preferably, this can be set + for specific &sources-list; entries or index files by using the + option there. Two sub-options to limit the use of PDiffs are also available: FileLimit can be used to specify a maximum number of PDiff files should be downloaded to update a file. SizeLimit @@ -341,6 +349,16 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";}; + + Try to download indexes via an URI constructed from a + hashsum of the expected file rather than downloaded via a well-known + stable filename. True by default, but automatically disabled if the + source indicates no support for it. Usage can be forced with the special + value "force". Preferably, this can be set for specific &sources-list; entries + or index files by using the option there. + + + Queuing mode; Queue-Mode can be one of host or access which determines how APT parallelizes outgoing @@ -593,6 +611,15 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";}; + + + This option controls if apt will use the DNS SRV server record + as specified in RFC 2782 to select an alternative server to + connect to. + The default is "true". + + + Allow the update operation to load data files from @@ -618,9 +645,54 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";}; + scope + + Acquiring changelogs can only be done if an URI is known from where to get them. + Preferable the Release file indicates this in a 'Changelogs' field. If this isn't + available the Label/Origin field of the Release file is used to check if a + Acquire::Changelogs::URI::Label::LABEL or + Acquire::Changelogs::URI::Origin::ORIGIN option + exists and if so this value is taken. The value in the Release file can be overridden + with Acquire::Changelogs::URI::Override::Label::LABEL + or Acquire::Changelogs::URI::Override::Origin::ORIGIN. + + The value should be a normal URI to a text file, expect that package specific data is + replaced with the placeholder CHANGEPATH. The + value for it is: 1. if the package is from a component (e.g. main) + this is the first part otherwise it is omitted, 2. the first letter of source package name, + expect if the source package name starts with 'lib' in which case it will + be the first four letters. 3. The complete source package name. 4. the complete name again and + 5. the source version. + The first (if present), second, third and fourth part are separated by a slash ('/') + and between the fourth and fifth part is an underscore ('_'). + + The special value 'no' is available for this option indicating that + this source can't be used to acquire changelog files from. Another source will be tried + if available in this case. + + + + Binary specific configuration + Especially with the introduction of the apt binary + it can be useful to set certain options only for a specific binary as + even options which look like they would effect only a certain binary like + effect + apt-get as well as apt. + + Setting an option for a specific binary only can be achieved by + setting the option inside the + + scope. Setting the option for + the apt only can e.g. by done by setting + instead. + Note that as seen in the DESCRIPTION section further above you can't + set binary-specific options on the commandline itself nor in + configuration files loaded via the commandline. + + Directories The Dir::State section has directories that pertain to local @@ -659,7 +731,7 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";}; The configuration item RootDir has a special - meaning. If set, all paths in Dir:: will be + meaning. If set, all paths will be relative to RootDir, even paths that are specified absolutely. So, for instance, if RootDir is set to @@ -668,6 +740,7 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";}; /var/lib/dpkg/status, then the status file will be looked up in /tmp/staging/var/lib/dpkg/status. + If you want to prefix only relative paths, set Dir instead. @@ -743,10 +816,34 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";}; install to the commands, one per line on the requested file descriptor, defaulting to standard input. - Version 2 of this protocol dumps more information, including the - protocol version, the APT configuration space and the packages, files - and versions being changed. Version 3 adds the architecture and MultiArch - flag to each version being dumped. + Version 2 of this protocol sends more information through the requested + file descriptor: a line with the text VERSION 2, + the APT configuration space, and a list of package actions with filename + and version information. + + Each configuration directive line has the form + key=value. Special characters (equal signs, newlines, + nonprintable characters, quotation marks, and percent signs in + key and newlines, nonprintable characters, and percent + signs in value) are %-encoded. Lists are represented + by multiple key::=value lines with the same key. The + configuration section ends with a blank line. + + Package action lines consist of five fields in Version 2: old version, direction + of version change (< for upgrades, > for downgrades, = for no + change), new version, action. The version fields are "-" for no version + at all (for example when installing a package for the first time; no + version is treated as earlier than any real version, so that is an + upgrade, indicated as - < 1.23.4). The action field + is "**CONFIGURE**" if the package is being configured, "**REMOVE**" if it + is being removed, or the filename of a .deb file if it is being + unpacked. + + In Version 3 after each version field follows the architecture + of this version, which is "-" if there is no version, and a field showing + the MultiArch type "same", foreign", "allowed" or "none". Note that "none" + is an incorrect typename which is just kept to remain compatible, it + should be read as "no" and users are encouraged to support both. The version of the protocol to be used for the command cmd can be chosen by setting