move base class for system dependencies into base.py

In accordance with review comments; it's small enough this seems fitting.

11 files changed, 26 insertions, 44 deletions

diff --git a/mesonbuild/dependencies/base.py b/mesonbuild/dependencies/base.py
index da8fc54..66fbc85 100644
--- a/mesonbuild/dependencies/base.py
+++ b/mesonbuild/dependencies/base.py
@@ -534,3 +534,20 @@ def detect_compiler(name: str, env: 'Environment', for_machine: MachineChoice,
             except KeyError:
                 continue
     return None
+
+
+class SystemDependency(ExternalDependency):
+
+    """Dependency base for System type dependencies."""
+
+    def __init__(self, name: str, env: 'Environment', kwargs: T.Dict[str, T.Any],
+                 language: T.Optional[str] = None) -> None:
+        super().__init__(DependencyTypeName('system'), env, kwargs, language=language)
+        self.name = name
+
+    @staticmethod
+    def get_methods() -> T.List[DependencyMethods]:
+        return [DependencyMethods.SYSTEM]
+
+    def log_tried(self) -> str:
+        return 'system'
diff --git a/mesonbuild/dependencies/boost.py b/mesonbuild/dependencies/boost.py
index fabebfa..dc317cd 100644
--- a/mesonbuild/dependencies/boost.py
+++ b/mesonbuild/dependencies/boost.py
@@ -21,10 +21,9 @@ from .. import mlog
 from .. import mesonlib
 from ..environment import Environment
 
-from .base import DependencyException
+from .base import DependencyException, SystemDependency
 from .pkgconfig import PkgConfigDependency
 from .misc import threads_factory
-from .system import SystemDependency
 
 if T.TYPE_CHECKING:
     from ..environment import Properties
diff --git a/mesonbuild/dependencies/coarrays.py b/mesonbuild/dependencies/coarrays.py
index f2aa608..d9af191 100644
--- a/mesonbuild/dependencies/coarrays.py
+++ b/mesonbuild/dependencies/coarrays.py
@@ -15,11 +15,10 @@
 import functools
 import typing as T
 
-from .base import DependencyMethods, detect_compiler
+from .base import DependencyMethods, detect_compiler, SystemDependency
 from .cmake import CMakeDependency
 from .pkgconfig import PkgConfigDependency
 from .factory import factory_methods
-from .system import SystemDependency
 
 if T.TYPE_CHECKING:
     from . factory import DependencyGenerator
diff --git a/mesonbuild/dependencies/cuda.py b/mesonbuild/dependencies/cuda.py
index d396dbe..43bb622 100644
--- a/mesonbuild/dependencies/cuda.py
+++ b/mesonbuild/dependencies/cuda.py
@@ -21,8 +21,7 @@ from pathlib import Path
 from .. import mesonlib
 from .. import mlog
 from ..environment import detect_cpu_family
-from .base import DependencyException
-from .system import SystemDependency
+from .base import DependencyException, SystemDependency
 
 
 if T.TYPE_CHECKING:
diff --git a/mesonbuild/dependencies/dev.py b/mesonbuild/dependencies/dev.py
index ab9e9e5..60c4b74 100644
--- a/mesonbuild/dependencies/dev.py
+++ b/mesonbuild/dependencies/dev.py
@@ -26,13 +26,12 @@ from .. import mesonlib, mlog
 from ..compilers import AppleClangCCompiler, AppleClangCPPCompiler
 from ..environment import get_llvm_tool_names
 from ..mesonlib import version_compare, stringlistify, extract_as_list, MachineChoice
-from .base import DependencyException, DependencyMethods, strip_system_libdirs
+from .base import DependencyException, DependencyMethods, strip_system_libdirs, SystemDependency
 from .cmake import CMakeDependency
 from .configtool import ConfigToolDependency
 from .factory import DependencyFactory
 from .misc import threads_factory
 from .pkgconfig import PkgConfigDependency
-from .system import SystemDependency
 
 if T.TYPE_CHECKING:
     from ..envconfig import MachineInfo
diff --git a/mesonbuild/dependencies/factory.py b/mesonbuild/dependencies/factory.py
index 9ee5bfd..774e88e 100644
--- a/mesonbuild/dependencies/factory.py
+++ b/mesonbuild/dependencies/factory.py
@@ -20,10 +20,10 @@ from ..mesonlib import MachineChoice
 from .base import DependencyException, DependencyMethods
 from .base import ExternalDependency
 from .base import process_method_kw
+from .base import SystemDependency
 from .cmake import CMakeDependency
 from .framework import ExtraFrameworkDependency
 from .pkgconfig import PkgConfigDependency
-from .system import SystemDependency
 
 if T.TYPE_CHECKING:
     from ..environment import Environment
diff --git a/mesonbuild/dependencies/misc.py b/mesonbuild/dependencies/misc.py
index eb712b1..87b1a9b 100644
--- a/mesonbuild/dependencies/misc.py
+++ b/mesonbuild/dependencies/misc.py
@@ -24,11 +24,11 @@ from .. import mesonlib
 from .. import mlog
 from ..environment import detect_cpu_family
 from .base import DependencyException, DependencyMethods
+from .base import SystemDependency
 from .cmake import CMakeDependency
 from .configtool import ConfigToolDependency
 from .factory import DependencyFactory, factory_methods
 from .pkgconfig import PkgConfigDependency
-from .system import SystemDependency
 
 if T.TYPE_CHECKING:
     from ..environment import Environment, MachineChoice
diff --git a/mesonbuild/dependencies/mpi.py b/mesonbuild/dependencies/mpi.py
index 8985b79..2354767 100644
--- a/mesonbuild/dependencies/mpi.py
+++ b/mesonbuild/dependencies/mpi.py
@@ -18,11 +18,10 @@ import os
 import re
 
 from ..environment import detect_cpu_family
-from .base import DependencyMethods, detect_compiler
+from .base import DependencyMethods, detect_compiler, SystemDependency
 from .configtool import ConfigToolDependency
 from .factory import factory_methods
 from .pkgconfig import PkgConfigDependency
-from .system import SystemDependency
 
 if T.TYPE_CHECKING:
     from .factory import DependencyGenerator
diff --git a/mesonbuild/dependencies/system.py b/mesonbuild/dependencies/system.py
deleted file mode 100644
index afde872..0000000
--- a/mesonbuild/dependencies/system.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# SPDX-License-Identifier: Apache-2.0
-# Copyright © 2021 Intel Corporation
-
-from .base import DependencyTypeName, ExternalDependency, DependencyMethods
-import typing as T
-
-if T.TYPE_CHECKING:
-    from ..environment import Environment
-
-__all__ = [
-    'SystemDependency',
-]
-
-
-class SystemDependency(ExternalDependency):
-
-    """Dependency base for System type dependencies."""
-
-    def __init__(self, name: str, env: 'Environment', kwargs: T.Dict[str, T.Any],
-                 language: T.Optional[str] = None) -> None:
-        super().__init__(DependencyTypeName('system'), env, kwargs, language=language)
-        self.name = name
-
-    @staticmethod
-    def get_methods() -> T.List[DependencyMethods]:
-        return [DependencyMethods.SYSTEM]
-
-    def log_tried(self) -> str:
-        return 'system'
diff --git a/mesonbuild/dependencies/ui.py b/mesonbuild/dependencies/ui.py
index 1646ddf..f256a37 100644
--- a/mesonbuild/dependencies/ui.py
+++ b/mesonbuild/dependencies/ui.py
@@ -25,10 +25,9 @@ from ..mesonlib import (
 )
 from ..environment import detect_cpu_family
 
-from .base import DependencyException, DependencyMethods, DependencyTypeName
+from .base import DependencyException, DependencyMethods, DependencyTypeName, SystemDependency
 from .configtool import ConfigToolDependency
 from .factory import DependencyFactory
-from .system import SystemDependency
 
 if T.TYPE_CHECKING:
     from ..environment import Environment
diff --git a/mesonbuild/modules/python.py b/mesonbuild/modules/python.py
index 94e100b..f109503 100644
--- a/mesonbuild/modules/python.py
+++ b/mesonbuild/modules/python.py
@@ -31,7 +31,7 @@ from ..build import known_shmod_kwargs
 from .. import mlog
 from ..environment import detect_cpu_family
 from ..dependencies import DependencyMethods, PkgConfigDependency, NotFoundDependency
-from ..dependencies.system import SystemDependency
+from ..dependencies.base import SystemDependency
 from ..programs import ExternalProgram, NonExistingExternalProgram
 
 mod_kwargs = {'subdir'}