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# Copyright 2013-2024 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
import collections
from typing import List, Set
from llnl.util import lang
import spack.deptypes as dt
import spack.package_base
import spack.repo
PossibleDependencies = Set[str]
class Counter:
"""Computes the possible packages and the maximum number of duplicates
allowed for each of them.
Args:
specs: abstract specs to concretize
tests: if True, add test dependencies to the list of possible packages
"""
def __init__(self, specs: List["spack.spec.Spec"], tests: bool) -> None:
self.specs = specs
self.link_run_types: dt.DepFlag = dt.LINK | dt.RUN | dt.TEST
self.all_types: dt.DepFlag = dt.ALL
if not tests:
self.link_run_types = dt.LINK | dt.RUN
self.all_types = dt.LINK | dt.RUN | dt.BUILD
self._possible_dependencies: PossibleDependencies = set()
self._possible_virtuals: Set[str] = set(x.name for x in specs if x.virtual)
def possible_dependencies(self) -> PossibleDependencies:
"""Returns the list of possible dependencies"""
self.ensure_cache_values()
return self._possible_dependencies
def possible_virtuals(self) -> Set[str]:
"""Returns the list of possible virtuals"""
self.ensure_cache_values()
return self._possible_virtuals
def ensure_cache_values(self) -> None:
"""Ensure the cache values have been computed"""
if self._possible_dependencies:
return
self._compute_cache_values()
def possible_packages_facts(self, gen: "spack.solver.asp.PyclingoDriver", fn) -> None:
"""Emit facts associated with the possible packages"""
raise NotImplementedError("must be implemented by derived classes")
def _compute_cache_values(self):
raise NotImplementedError("must be implemented by derived classes")
class NoDuplicatesCounter(Counter):
def _compute_cache_values(self):
result = spack.package_base.possible_dependencies(
*self.specs, virtuals=self._possible_virtuals, depflag=self.all_types
)
self._possible_dependencies = set(result)
def possible_packages_facts(self, gen, fn):
gen.h2("Maximum number of nodes (packages)")
for package_name in sorted(self.possible_dependencies()):
gen.fact(fn.max_dupes(package_name, 1))
gen.newline()
gen.h2("Maximum number of nodes (virtual packages)")
for package_name in sorted(self.possible_virtuals()):
gen.fact(fn.max_dupes(package_name, 1))
gen.newline()
gen.h2("Possible package in link-run subDAG")
for name in sorted(self.possible_dependencies()):
gen.fact(fn.possible_in_link_run(name))
gen.newline()
class MinimalDuplicatesCounter(NoDuplicatesCounter):
def __init__(self, specs, tests):
super().__init__(specs, tests)
self._link_run: PossibleDependencies = set()
self._direct_build: PossibleDependencies = set()
self._total_build: PossibleDependencies = set()
self._link_run_virtuals: Set[str] = set()
def _compute_cache_values(self):
self._link_run = set(
spack.package_base.possible_dependencies(
*self.specs, virtuals=self._possible_virtuals, depflag=self.link_run_types
)
)
self._link_run_virtuals.update(self._possible_virtuals)
for x in self._link_run:
build_dependencies = spack.repo.PATH.get_pkg_class(x).dependencies_of_type(dt.BUILD)
virtuals, reals = lang.stable_partition(
build_dependencies, spack.repo.PATH.is_virtual_safe
)
self._possible_virtuals.update(virtuals)
for virtual_dep in virtuals:
providers = spack.repo.PATH.providers_for(virtual_dep)
self._direct_build.update(str(x) for x in providers)
self._direct_build.update(reals)
self._total_build = set(
spack.package_base.possible_dependencies(
*self._direct_build, virtuals=self._possible_virtuals, depflag=self.all_types
)
)
self._possible_dependencies = set(self._link_run) | set(self._total_build)
def possible_packages_facts(self, gen, fn):
build_tools = set(spack.repo.PATH.packages_with_tags("build-tools"))
gen.h2("Packages with at most a single node")
for package_name in sorted(self.possible_dependencies() - build_tools):
gen.fact(fn.max_dupes(package_name, 1))
gen.newline()
gen.h2("Packages with at multiple possible nodes (build-tools)")
for package_name in sorted(self.possible_dependencies() & build_tools):
gen.fact(fn.max_dupes(package_name, 2))
gen.fact(fn.multiple_unification_sets(package_name))
gen.newline()
gen.h2("Maximum number of nodes (virtual packages)")
for package_name in sorted(self.possible_virtuals()):
gen.fact(fn.max_dupes(package_name, 1))
gen.newline()
gen.h2("Possible package in link-run subDAG")
for name in sorted(self._link_run):
gen.fact(fn.possible_in_link_run(name))
gen.newline()
class FullDuplicatesCounter(MinimalDuplicatesCounter):
def possible_packages_facts(self, gen, fn):
build_tools = set(spack.repo.PATH.packages_with_tags("build-tools"))
counter = collections.Counter(
list(self._link_run) + list(self._total_build) + list(self._direct_build)
)
gen.h2("Maximum number of nodes")
for pkg, count in sorted(counter.items(), key=lambda x: (x[1], x[0])):
count = min(count, 2)
gen.fact(fn.max_dupes(pkg, count))
gen.newline()
gen.h2("Build unification sets ")
for name in sorted(self.possible_dependencies() & build_tools):
gen.fact(fn.multiple_unification_sets(name))
gen.newline()
gen.h2("Possible package in link-run subDAG")
for name in sorted(self._link_run):
gen.fact(fn.possible_in_link_run(name))
gen.newline()
counter = collections.Counter(
list(self._link_run_virtuals) + list(self._possible_virtuals)
)
gen.h2("Maximum number of virtual nodes")
for pkg, count in sorted(counter.items(), key=lambda x: (x[1], x[0])):
gen.fact(fn.max_dupes(pkg, count))
gen.newline()
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