info > Dpkg::Deps::Multiple

Dpkg::Deps::Multiple(3perl) libdpkg-perl Dpkg::Deps::Multiple(3perl)

📛 NAME

Dpkg::Deps::Multiple - base module to represent multiple dependencies

🚀 Quick Reference

Use Case	Command	Description
Create a new multiple dependency object	Dpkg::Deps::Multiple->new(%opts)	Creates a new object
Reset dependency information	$dep->reset()	Clears dependency info so is_empty() returns true
Add sub‑dependencies	$dep->add(@deps)	Adds new dependency objects at the end of the list
Check if dependency is empty	$dep->is_empty()	Returns true if empty and contains no useful info
Sort dependencies alphabetically	$dep->sort()	Sorts the internal list of dependencies
Reduce to architecture‑specific	$dep->reduce_arch($arch)	Simplifies dependencies for a given architecture
Reduce to profile‑specific	$dep->reduce_profiles()	Simplifies dependencies for a given profile

📖 Description

The Dpkg::Deps::Multiple module provides objects implementing various types of dependencies. It is the base class for Dpkg::Deps::{AND,OR,Union}.

🛠️ Methods

• $dep = Dpkg::Deps::Multiple->new(%opts); — Creates a new object.
• $dep->reset() — Clears any dependency information stored in $dep so that $dep->is_empty() returns true.
• $dep->add(@deps) — Adds new dependency objects at the end of the list.
• $dep->get_deps() — Returns a list of sub‑dependencies.
• $dep->sort() — Sorts alphabetically the internal list of dependencies.
• $dep->arch_is_concerned($arch) — Returns true if at least one of the sub‑dependencies apply to this architecture.
• $dep->reduce_arch($arch) — Simplifies the dependencies to contain only information relevant to the given architecture. The non‑relevant sub‑dependencies are simply removed. This trims off the architecture restriction list of Dpkg::Deps::Simple objects.
• $dep->has_arch_restriction() — Returns the list of package names that have such a restriction.
• $dep->profile_is_concerned() — Returns true if at least one of the sub‑dependencies apply to this profile.
• $dep->reduce_profiles() — Simplifies the dependencies to contain only information relevant to the given profile. The non‑relevant sub‑dependencies are simply removed. This trims off the profile restriction list of Dpkg::Deps::Simple objects.
• $dep->is_empty() — Returns true if the dependency is empty and doesn't contain any useful information. This is true when a (descendant of) Dpkg::Deps::Multiple contains an empty list of dependencies.
• $dep->merge_union($other_dep) — This method is not meaningful for this object, and will always croak.

📋 Changes

📅 Version 1.02 (dpkg 1.17.10)

• New methods: Add $dep->profile_is_concerned() and $dep->reduce_profiles().

📅 Version 1.01 (dpkg 1.16.1)

• New method: Add $dep->reset().

📅 Version 1.00 (dpkg 1.15.6)

• Mark the module as public.

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