forktracer.conf - apt-forktracer configuration file
apt-forktracer reports "non-standard" packages which are installed in
the system. The configuration files let you ignore (skip reporting)
some of them, provided they meet certain criteria. The program reads
the /etc/apt/forktracer.conf file, as well as
/etc/apt/forktracer.d/*.conf (skipping hidden files).
A config file consists of any number of stanzas, separated with at
least one empty lines. A stanza has the following format:
All these lines in a stanza are required, and they have the following
the name of the package to which this stanza applies
the value of the Origin field of the source, from which a
package should be ignored. A package will be ignored, if its
candidate version comes from source1, and at the same time meets
the condition given by the Track-* fields. A special value *
means, that a package should be ignored regardless of the source
of the candidate version.
the value of the Origin field of the source, from which the
newest available version should be tracked. A special value *
means, that a generally newest available version should be
tracked, regardless of source.
is the required version string available from the origin2
source. Apart from a literal version string, the following
special values may be used: =candidate, which means the current
candidate version, and =candidate-base, which means the base
version (see below) of the current candidate version.
The above stanza would cause package to be skipped from program output,
as long as its candidate version comes from origin1, and at the same
time its newest version available from origin2 equals version.
If there is more than one stanza for a given package, then it is
omitted from the program output if at least one of them matches the
Base version definition
A base version is extracted from a given version by stripping from its
end the shortest string starting with a tilde character. For example
for version 1:1.2-3~4~5 the base version is 1:1.2-3~4.
If for a given package package there is no stanza in the configuration,
then the program acts as if the following two stanzas existed:
where distributor is the system distributor’s identifier, as returned
by lsb_release --id or by the DISTRIB_ID field in the /etc/lsb-release
apt-forktracer reports packages which are not available from any
official source, for example:
puppet-softwarelab (0.2) [SoftwareLab: 0.2 0.1]
The following stanza makes it skip such packages:
If the puppet-softwarelab package will be "pinned" to "release
o=Softwarelab", then such configuration will make apt-forktracer report
if puppet-softwarelab appears in any source other than SoftwareLab in a
version newer than the one available from it.
Installing a backport has a similar effect to installing an unofficial
spamc (3.2.3-0.volatile1) [Debian: 3.1.7-2] [volatile.debian.org: 3.2.3-0.volatile1]
The following stanza will cause such package to be skipped:
In this situation a small official version string change (for example
to 3.1.7-2etch1) will be silently ignored. Such configuration is
therefore only suitable for cases where you trust the person providing
the backport to carefully track changes in the stable edition and make
sure they are incorporated in the backport they are distributing. In
other cases, you should probably use the following configuration.
Sometimes there is a situation where you make minor changes to a
package, and you would like to know when a new official stable version
is released, so that you can update your modified version.
policyd-weight (0.1.14-beta-6etch2.0.sl.1) [Debian: 0.1.14-beta-6etch2] [SoftwareLab: 0.1.14-beta-6etch2.0.sl.1]
The following configuration is useful in such cases:
It is worth mentioning, that if you apply a certain convention when
numbering the modified version, then the Default configuration
described before is sufficient. In this case, if the modified version
would have a version number such as 0.1.14-beta-6etch2~sl.1 then the
above-mentioned stanza would be unnecessary. What is more, there would
be no need to keep any configuration up-to-date in case of new stable
version releases, because the default configuration is created
dynamically based on the current situation.
apt-cache(8), apt-forktracer(8), apt_preferences(5).