Dependency Resolution
[Paludis]

Classes
struct	paludis::DepListEntry
struct	paludis::DepListOptions
class	paludis::DepList
class	paludis::DepListError
class	paludis::AllMaskedError
class	paludis::AdditionalRequirementsNotMetError
class	paludis::DowngradeNotAllowedError
class	paludis::BlockError
class	paludis::CircularDependencyError
class	paludis::NoDestinationError
struct	paludis::DepTagEntry
struct	paludis::DepTagEntryComparator
class	paludis::DepListEntryHandled
class	paludis::DepListEntryUnhandled
class	paludis::DepListEntryNoHandlingRequired
class	paludis::DepListEntryHandledSuccess
class	paludis::DepListEntryHandledFetchSuccess
class	paludis::DepListEntryHandledSkippedUnsatisfied
class	paludis::DepListEntryHandledSkippedDependent
class	paludis::DepListEntryHandledFailed
class	paludis::DepListEntryHandledFetchFailed
class	paludis::QueryVisitor
class	paludis::RangeRewriter
class	paludis::ShowSuggestVisitor
struct	paludis::UninstallListOptions
struct	paludis::UninstallListEntry
class	paludis::UninstallList
Files
file	dep_list-fwd.hh
file	dep_list.hh
file	handled_information-fwd.hh
file	handled_information.hh
file	override_functions.hh
file	query_visitor.hh
file	range_rewriter.hh
file	show_suggest_visitor.hh
file	uninstall_list.hh
Typedefs
typedef Sequence < std::tr1::function< bool(const PackageID &, const Mask &)> >	paludis::DepListOverrideMasksFunctions
Enumerations
enum	paludis::DepListUseOption { paludis::dl_use_deps_standard, paludis::dl_use_deps_take_all, paludis::last_dl_use_deps }
enum	paludis::DepListUpgradeOption { paludis::dl_upgrade_always, paludis::dl_upgrade_as_needed, paludis::last_dl_upgrade }
enum	paludis::DepListTargetType { paludis::dl_target_package, paludis::dl_target_set, paludis::last_dl_target }
enum	paludis::DepListSuggestedOption { paludis::dl_suggested_show, paludis::dl_suggested_discard, paludis::dl_suggested_install, paludis::last_dl_suggested }
enum	paludis::DepListReinstallScmOption {   paludis::dl_reinstall_scm_never, paludis::dl_reinstall_scm_always, paludis::dl_reinstall_scm_daily, paludis::dl_reinstall_scm_weekly,   paludis::last_dl_reinstall_scm }
enum	paludis::DepListReinstallOption { paludis::dl_reinstall_never, paludis::dl_reinstall_always, paludis::dl_reinstall_if_use_changed, paludis::last_dl_reinstall }
enum	paludis::DepListNewSlotsOption { paludis::dl_new_slots_always, paludis::dl_new_slots_as_needed, paludis::last_dl_new_slots }
enum	paludis::DepListFallBackOption { paludis::dl_fall_back_as_needed_except_targets, paludis::dl_fall_back_as_needed, paludis::dl_fall_back_never, paludis::last_dl_fall_back }
enum	paludis::DepListEntryState { paludis::dle_no_deps, paludis::dle_has_pre_deps, paludis::dle_has_all_deps, paludis::last_dle }
enum	paludis::DepListEntryKind {   paludis::dlk_package, paludis::dlk_subpackage, paludis::dlk_already_installed, paludis::dlk_virtual,   paludis::dlk_provided, paludis::dlk_suggested, paludis::dlk_block, paludis::dlk_masked,   paludis::last_dlk }
enum	paludis::DepListDowngradeOption { paludis::dl_downgrade_as_needed, paludis::dl_downgrade_warning, paludis::dl_downgrade_error, paludis::last_dl_downgrade }
enum	paludis::DepListDepsOption {   paludis::dl_deps_discard, paludis::dl_deps_pre, paludis::dl_deps_pre_or_post, paludis::dl_deps_post,   paludis::dl_deps_try_post, paludis::last_dl_deps }
enum	paludis::DepListCircularOption { paludis::dl_circular_error, paludis::dl_circular_discard, paludis::dl_circular_discard_silently, paludis::last_dl_circular }
enum	paludis::DepListBlocksOption {   paludis::dl_blocks_accumulate, paludis::dl_blocks_error, paludis::dl_blocks_discard, paludis::dl_blocks_discard_completely,   paludis::last_dl_blocks }
enum	paludis::UninstallListEntryKind {   paludis::ulk_package, paludis::ulk_requires, paludis::ulk_required_by, paludis::ulk_virtual,   paludis::last_ulk }
Functions
bool	paludis::is_viable_any_child (const DependencySpecTree::BasicNode &i)
bool	paludis::override_tilde_keywords (const Environment *const e, const PackageID &i, const Mask &m) PALUDIS_ATTRIBUTE((warn_unused_result)) PALUDIS_VISIBLE
bool	paludis::override_unkeyworded (const Environment *const e, const PackageID &i, const Mask &m) PALUDIS_ATTRIBUTE((warn_unused_result)) PALUDIS_VISIBLE
bool	paludis::override_repository_masks (const Mask &m) PALUDIS_ATTRIBUTE((warn_unused_result)) PALUDIS_VISIBLE
bool	paludis::override_license (const Mask &m) PALUDIS_ATTRIBUTE((warn_unused_result)) PALUDIS_VISIBLE

---

Detailed Description

There are two classes that provide dependency resolution: DepList (for installing) and UninstallList (for uninstalling). Actual installing and uninstalling is usually done by InstallTask and UninstallTask respectively.

Examples

• None at this time.

---

Typedef Documentation

typedef Sequence<std::tr1::function<bool (const PackageID &, const Mask &)> > paludis::DepListOverrideMasksFunctions

A sequence of functions to try, in order, when overriding masks.

---

Enumeration Type Documentation

enum paludis::DepListBlocksOption

How we handle blocks.

Enumerator:

dl_blocks_accumulate	Accumulate them and show all errors together.
dl_blocks_error	Error on the first one.
dl_blocks_discard	Discard (dangerous).
dl_blocks_discard_completely	Discard completely (not for user visible use).
last_dl_blocks	Number of keys in paludis::DepListBlocksOption.

enum paludis::DepListCircularOption

How we should handle circular deps.

See also:

DepListOptions

Enumerator:

dl_circular_error	As an error.
dl_circular_discard	Discard them.
dl_circular_discard_silently	Discard them silently.
last_dl_circular	Number of keys in paludis::DepListCircularOption.

enum paludis::DepListDepsOption

How we should handle a dep class.

See also:

DepListOptions

Enumerator:

dl_deps_discard	Discard it.
dl_deps_pre	As a pre dependency.
dl_deps_pre_or_post	As a pre dependency with fallback to post.
dl_deps_post	As a post dependency.
dl_deps_try_post	As an optional post dependency.
last_dl_deps	Number of keys in paludis::DepListDepsOption.

enum paludis::DepListDowngradeOption

What to do when we downgrade.

See also:

DepListOptions

Enumerator:

dl_downgrade_as_needed	As needed.
dl_downgrade_warning	As needed, but warn.
dl_downgrade_error	Refuse to downgrade.
last_dl_downgrade	Number of keys in paludis::DepListDowngradeOption.

enum paludis::DepListEntryKind

Kind of a DepListEntry.

Enumerator:

dlk_package	A package to be installed.
dlk_subpackage	A package to be installed as part of the previous dlk_package.
dlk_already_installed	An already installed package.
dlk_virtual	A virtual package.
dlk_provided	A package provided by the previous dlk_package.
dlk_suggested	A package suggested by the previous dlk_package.
dlk_block	A blocked package that must be removed.
dlk_masked	A masked package that must be unmasked.
last_dlk	Number of keys in paludis::DepListEntryKind.

enum paludis::DepListEntryState

State of a DepListEntry.

Enumerator:

dle_no_deps	Dependencies have yet to be added.
dle_has_pre_deps	Predependencies have been added.
dle_has_all_deps	All dependencies have been added.
last_dle	Number of keys in paludis::DepListEntryState.

enum paludis::DepListFallBackOption

When we should fall back to an installed package.

See also:

DepListOptions

Enumerator:

dl_fall_back_as_needed_except_targets	As needed, except for targets.
dl_fall_back_as_needed	As needed.
dl_fall_back_never	Never.
last_dl_fall_back	Number of keys in paludis::DepListFallBackOption.

enum paludis::DepListNewSlotsOption

When we should pull in a new slot.

See also:

DepListOptions

Enumerator:

dl_new_slots_always	Always.
dl_new_slots_as_needed	Only where necessary.
last_dl_new_slots	Number of keys in paludis::DepListNewSlotsOption.

enum paludis::DepListReinstallOption

When we should reinstall.

See also:

DepListOptions

Enumerator:

dl_reinstall_never	Never.
dl_reinstall_always	Always.
dl_reinstall_if_use_changed	If a USE flag has changed.
last_dl_reinstall	Number of keys in paludis::DepListReinstallOption.

enum paludis::DepListReinstallScmOption

When we should reinstall SCM packages.

See also:

DepListOptions

Enumerator:

dl_reinstall_scm_never	Never.
dl_reinstall_scm_always	Always.
dl_reinstall_scm_daily	Daily.
dl_reinstall_scm_weekly	Weekly.
last_dl_reinstall_scm	Number of keys in paludis::DepListReinstallScmOption.

enum paludis::DepListSuggestedOption

How we should handle suggested deps.

See also:

DepListOptions

Enumerator:

dl_suggested_show	Show.
dl_suggested_discard	Discard.
dl_suggested_install	Install.
last_dl_suggested	Number of keys in paludis::DepListSuggestedOption.

enum paludis::DepListTargetType

Type of target being handled at the top level.

See also:

DepListOptions

Enumerator:

dl_target_package	A package, so force reinstalls.
dl_target_set	A set, so don't force reinstalls.
last_dl_target	Number of keys in paludis::DepListTargetType.

enum paludis::DepListUpgradeOption

When we should upgrade.

See also:

DepListOptions

Enumerator:

dl_upgrade_always	Always.
dl_upgrade_as_needed	Only as needed.
last_dl_upgrade	Number of keys in paludis::DepListUpgradeOption.

enum paludis::DepListUseOption

How we handle use deps.

Not for end user use. Used by adjutrix and qa.

Enumerator:

dl_use_deps_standard	Behave as standard.
dl_use_deps_take_all	Take both sides of use conditionals except on masks.
last_dl_use_deps	Number of keys in paludis::DepListUseOption.

enum paludis::UninstallListEntryKind

Kind of an UninstallListEntry.

Enumerator:

ulk_package	A package to be uninstalled.
ulk_requires	A package that requires its tags.
ulk_required_by	A package that is required by its tags.
ulk_virtual	A virtual.
last_ulk	Number of keys in paludis::UninstallListEntryKind.

---

Function Documentation

bool paludis::is_viable_any_child

(

const DependencySpecTree::BasicNode &

i

)

Is an item a valid child in an AnyDepSpec?

bool paludis::override_license

(

const Mask &

m

)

Override a mask if it is a license mask.

Since:

0.26

bool paludis::override_repository_masks

(

const Mask &

m

)

Override a mask if it is a repository mask.

Since:

0.26

bool paludis::override_tilde_keywords	(	const Environment *const	e,
		const PackageID &	i,
		const Mask &	m
	)

Override a mask if it is a ~keyword mask, and keyword is accepted.

Since:

0.26

bool paludis::override_unkeyworded	(	const Environment *const	e,
		const PackageID &	i,
		const Mask &	m
	)

Override a mask if it is due to a missing keyword.

Since:

0.26