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import dataclasses
from enum import Enum
from typing import List, Callable, Optional, Sequence
from debian.debian_support import DpkgArchTable
from debputy._deb_options_profiles import DebBuildOptionsAndProfiles
from debputy.architecture_support import DpkgArchitectureBuildProcessValuesTable
from debputy.manifest_parser.base_types import DebputyDispatchableType
from debputy.packages import BinaryPackage
from debputy.substitution import Substitution
from debputy.util import active_profiles_match
@dataclasses.dataclass(slots=True, frozen=True)
class ConditionContext:
binary_package: Optional[BinaryPackage]
build_env: DebBuildOptionsAndProfiles
substitution: Substitution
dpkg_architecture_variables: DpkgArchitectureBuildProcessValuesTable
dpkg_arch_query_table: DpkgArchTable
class ManifestCondition(DebputyDispatchableType):
__slots__ = ()
def describe(self) -> str:
raise NotImplementedError
def negated(self) -> "ManifestCondition":
return NegatedManifestCondition(self)
def evaluate(self, context: ConditionContext) -> bool:
raise NotImplementedError
@classmethod
def _manifest_group(
cls,
match_type: "_ConditionGroupMatchType",
conditions: "Sequence[ManifestCondition]",
) -> "ManifestCondition":
condition = conditions[0]
if (
isinstance(condition, ManifestConditionGroup)
and condition.match_type == match_type
):
return condition.extend(conditions[1:])
return ManifestConditionGroup(match_type, conditions)
@classmethod
def any_of(cls, conditions: "Sequence[ManifestCondition]") -> "ManifestCondition":
return cls._manifest_group(_ConditionGroupMatchType.ANY_OF, conditions)
@classmethod
def all_of(cls, conditions: "Sequence[ManifestCondition]") -> "ManifestCondition":
return cls._manifest_group(_ConditionGroupMatchType.ALL_OF, conditions)
@classmethod
def is_cross_building(cls) -> "ManifestCondition":
return _IS_CROSS_BUILDING
@classmethod
def can_execute_compiled_binaries(cls) -> "ManifestCondition":
return _CAN_EXECUTE_COMPILED_BINARIES
@classmethod
def run_build_time_tests(cls) -> "ManifestCondition":
return _RUN_BUILD_TIME_TESTS
class NegatedManifestCondition(ManifestCondition):
__slots__ = ("_condition",)
def __init__(self, condition: ManifestCondition) -> None:
self._condition = condition
def negated(self) -> "ManifestCondition":
return self._condition
def describe(self) -> str:
return f"not ({self._condition.describe()})"
def evaluate(self, context: ConditionContext) -> bool:
return not self._condition.evaluate(context)
class _ConditionGroupMatchType(Enum):
ANY_OF = (any, "At least one of: [{conditions}]")
ALL_OF = (all, "All of: [{conditions}]")
def describe(self, conditions: Sequence[ManifestCondition]) -> str:
return self.value[1].format(
conditions=", ".join(x.describe() for x in conditions)
)
def evaluate(
self, conditions: Sequence[ManifestCondition], context: ConditionContext
) -> bool:
return self.value[0](c.evaluate(context) for c in conditions)
class ManifestConditionGroup(ManifestCondition):
__slots__ = ("match_type", "_conditions")
def __init__(
self,
match_type: _ConditionGroupMatchType,
conditions: Sequence[ManifestCondition],
) -> None:
self.match_type = match_type
self._conditions = conditions
def describe(self) -> str:
return self.match_type.describe(self._conditions)
def evaluate(self, context: ConditionContext) -> bool:
return self.match_type.evaluate(self._conditions, context)
def extend(
self,
conditions: Sequence[ManifestCondition],
) -> "ManifestConditionGroup":
combined = list(self._conditions)
combined.extend(conditions)
return ManifestConditionGroup(
self.match_type,
combined,
)
class ArchMatchManifestConditionBase(ManifestCondition):
__slots__ = ("_arch_spec", "_is_negated")
def __init__(self, arch_spec: List[str], *, is_negated: bool = False) -> None:
self._arch_spec = arch_spec
self._is_negated = is_negated
def negated(self) -> "ManifestCondition":
return self.__class__(self._arch_spec, is_negated=not self._is_negated)
class SourceContextArchMatchManifestCondition(ArchMatchManifestConditionBase):
def describe(self) -> str:
if self._is_negated:
return f'architecture (for source package) matches *none* of [{", ".join(self._arch_spec)}]'
return f'architecture (for source package) matches any of [{", ".join(self._arch_spec)}]'
def evaluate(self, context: ConditionContext) -> bool:
arch = context.dpkg_architecture_variables.current_host_arch
match = context.dpkg_arch_query_table.architecture_is_concerned(
arch, self._arch_spec
)
return not match if self._is_negated else match
class BinaryPackageContextArchMatchManifestCondition(ArchMatchManifestConditionBase):
def describe(self) -> str:
if self._is_negated:
return f'architecture (for binary package) matches *none* of [{", ".join(self._arch_spec)}]'
return f'architecture (for binary package) matches any of [{", ".join(self._arch_spec)}]'
def evaluate(self, context: ConditionContext) -> bool:
binary_package = context.binary_package
if binary_package is None:
raise RuntimeError(
"Condition only applies in the context of a BinaryPackage, but was evaluated"
" without one"
)
arch = binary_package.resolved_architecture
match = context.dpkg_arch_query_table.architecture_is_concerned(
arch, self._arch_spec
)
return not match if self._is_negated else match
class BuildProfileMatch(ManifestCondition):
__slots__ = ("_profile_spec", "_is_negated")
def __init__(self, profile_spec: str, *, is_negated: bool = False) -> None:
self._profile_spec = profile_spec
self._is_negated = is_negated
def negated(self) -> "ManifestCondition":
return self.__class__(self._profile_spec, is_negated=not self._is_negated)
def describe(self) -> str:
if self._is_negated:
return f"DEB_BUILD_PROFILES matches *none* of [{self._profile_spec}]"
return f"DEB_BUILD_PROFILES matches any of [{self._profile_spec}]"
def evaluate(self, context: ConditionContext) -> bool:
match = active_profiles_match(
self._profile_spec, context.build_env.deb_build_profiles
)
return not match if self._is_negated else match
@dataclasses.dataclass(frozen=True, slots=True)
class _SingletonCondition(ManifestCondition):
description: str
implementation: Callable[[ConditionContext], bool]
def describe(self) -> str:
return self.description
def evaluate(self, context: ConditionContext) -> bool:
return self.implementation(context)
def _can_run_built_binaries(context: ConditionContext) -> bool:
if not context.dpkg_architecture_variables.is_cross_compiling:
return True
# User / Builder asserted that we could even though we are cross-compiling, so we have to assume it is true
return "crossbuildcanrunhostbinaries" in context.build_env.deb_build_options
_IS_CROSS_BUILDING = _SingletonCondition(
"Cross Compiling (i.e., DEB_HOST_GNU_TYPE != DEB_BUILD_GNU_TYPE)",
lambda c: c.dpkg_architecture_variables.is_cross_compiling,
)
_CAN_EXECUTE_COMPILED_BINARIES = _SingletonCondition(
"Can run built binaries (natively or via transparent emulation)",
_can_run_built_binaries,
)
_RUN_BUILD_TIME_TESTS = _SingletonCondition(
"Run build time tests",
lambda c: "nocheck" not in c.build_env.deb_build_options,
)
_BUILD_DOCS_BDO = _SingletonCondition(
"Build docs (nodocs not in DEB_BUILD_OPTIONS)",
lambda c: "nodocs" not in c.build_env.deb_build_options,
)
del _SingletonCondition
del _can_run_built_binaries
|
