man > Dpkg::Deps::KnownFacts(3perl)

📛 NAME

Dpkg::Deps::KnownFacts - list of installed real and virtual packages

🚀 Quick Reference

📖 DESCRIPTION

This class represents a list of installed packages and a list of virtual packages provided (by the set of installed packages).

🔧 METHODS

• $facts = Dpkg::Deps::KnownFacts->new() — Creates a new object.
• $facts->add_installed_package($package, $version, $arch, $multiarch) — Records that the given version of the package is installed. If $version/$arch is undefined we know that the package is installed but we don't know which version/architecture it is. $multiarch is the Multi-Arch field of the package. If $multiarch is undef, it will be equivalent to "Multi-Arch: no". Note that $multiarch is only used if $arch is provided.
• $facts->add_provided_package($virtual, $relation, $version, $by) — Records that the "$by" package provides the $virtual package. $relation and $version correspond to the associated relation given in the Provides field (if present).
• $facts->evaluate_simple_dep() — This method is private and should not be used except from within Dpkg::Deps.

📜 CHANGES

🔄 Version 2.00 (dpkg 1.20.0)

❌ Remove method: $facts->check_package().

🔄 Version 1.01 (dpkg 1.16.1)

🆕 New option: Dpkg::Deps::KnownFacts->add_installed_package() now accepts 2 supplementary parameters ($arch and $multiarch).

⚠️ Deprecated method: Dpkg::Deps::KnownFacts->check_package() is obsolete, it should not have been part of the public API.

🔄 Version 1.00 (dpkg 1.15.6)

🌐 Mark the module as public.

1.21.1 2025-09-09 Dpkg::Deps::KnownFacts(3perl)