pkgcore.resolver.plan module

class pkgcore.resolver.plan.merge_plan(dbs, per_repo_strategy, global_strategy=None, depset_reorder_strategy=None, process_built_depends=False, drop_cycles=False, debug=False, debug_handle=None, pdb_intercept=None)

Bases: object

add_atom(atom)

add an atom, recalculating as necessary.

Returns:

the last unresolvable atom stack if a solution can’t be found, else returns None if the atom was successfully added.

add_atoms(restricts, finalize=False)

check_for_cycles(stack, cur_frame)

Check the current stack for cyclical issues.

Parameters:

• stack – current stack, a resolver_stack instance

• cur_frame – current frame, a resolver_frame instance

Returns:

True if no issues and resolution should continue, else the value to return after collapsing the calling frame

default_depset_reorder_strategy(depset, mode)

static default_global_strategy(dbs, atom)

property forced_restrictions

free_caches()

generate_mangled_blocker(choices, blocker)

converts a blocker into a “cannot block ourself” block

insert_blockers(stack, choices, blocks)

insert_choice(atom, choices)

static just_livefs_dbs(dbs)

static just_nonlivefs_dbs(dbs)

load_vdb_state()

notify_choice_failed(stack, atom, choices, msg, msg_args=())

notify_choice_succeeded(stack, atom, choices, msg='', msg_args=())

notify_starting_mode(mode, stack)

notify_trying_choice(stack, atom, choices)

notify_viable(stack, atom, viable, msg='', pre_solved=False)

classmethod prefer_downgrade_version_strategy(restrict, dbs)

classmethod prefer_highest_version_strategy(dbs)

classmethod prefer_livefs_dbs(dbs, just_vdb=None)

Parameters:

• dbs – db list to walk

• just_vdb – if None, no filtering; if True, just vdb, if False, non-vdb only

Returns:

yields repos in requested ordering

static prefer_lowest_version_strategy(dbs)

classmethod prefer_nonlivefs_dbs(dbs, just_vdb=None)

Parameters:

• dbs – db list to walk

• just_vdb – if None, no filtering; if True, just vdb, if False, non-vdb only

Returns:

yields repos in requested ordering

classmethod prefer_reuse_strategy(dbs)

process_blocker(stack, choices, blocker, mode, atom)

process_dependencies(stack, choices, mode, depset, atom)

process_dependencies_and_blocks(stack, choices, attr, atom=None, depth=None)

process_finalize()

reset(point=0)

vdb_restrict = <PackageRestriction attr='repo.livefs' restriction=<EqualityMatch True negate=False @0x7f857c70dfc0> @0x7f857c854ae0>

class pkgcore.resolver.plan.resolver_frame(parent, mode, atom, choices, dbs, start_point, depth, drop_cycles, ignored=False, vdb_limited=False)

Bases: object

atom

choices

property current_pkg

Return the package related to the resolver frame.

dbs

depth

drop_cycles

events

ignored

mode

parent

reduce_solutions(nodes)

start_point

succeeded

vdb_limited

class pkgcore.resolver.plan.resolver_stack

Bases: deque

add_event(event)

add_frame(mode, atom, choices, dbs, start_point, drop_cycles, vdb_limited=False)

property current_frame

itemgetter(item, …) –> itemgetter object

Return a callable object that fetches the given item(s) from its operand. After f = itemgetter(2), the call f(r) returns r[2]. After g = itemgetter(2, 5, 3), the call g(r) returns (r[2], r[5], r[3])

property depth

Return the number of items in a container.

frame_klass

alias of resolver_frame

index(frame, start=0, stop=None)

D.index(value, [start, [stop]]) – return first index of value. Raises ValueError if the value is not present.

property parent

pop_frame(result)

slot_cycles(trg_frame, **kwds)