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# Copyright 2013-2017 The Meson development team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This file contains the detection logic for external dependencies that
# are UI-related.
import os
import subprocess
import typing as T
from .. import mlog
from .. import mesonlib
from ..mesonlib import (
Popen_safe, extract_as_list, version_compare_many
)
from ..environment import detect_cpu_family
from .base import DependencyException, DependencyMethods
from .base import ExternalDependency
from .configtool import ConfigToolDependency
from .factory import DependencyFactory
if T.TYPE_CHECKING:
from ..environment import Environment
class GLDependencySystem(ExternalDependency):
def __init__(self, name: str, environment: 'Environment', kwargs: T.Dict[str, T.Any]) -> None:
super().__init__(name, environment, kwargs)
if self.env.machines[self.for_machine].is_darwin():
self.is_found = True
# FIXME: Use AppleFrameworks dependency
self.link_args = ['-framework', 'OpenGL']
# FIXME: Detect version using self.clib_compiler
return
if self.env.machines[self.for_machine].is_windows():
self.is_found = True
# FIXME: Use self.clib_compiler.find_library()
self.link_args = ['-lopengl32']
# FIXME: Detect version using self.clib_compiler
return
@staticmethod
def get_methods() -> T.List[DependencyMethods]:
if mesonlib.is_osx() or mesonlib.is_windows():
return [DependencyMethods.PKGCONFIG, DependencyMethods.SYSTEM]
else:
return [DependencyMethods.PKGCONFIG]
def log_tried(self) -> str:
return 'system'
class GnuStepDependency(ConfigToolDependency):
tools = ['gnustep-config']
tool_name = 'gnustep-config'
def __init__(self, environment: 'Environment', kwargs: T.Dict[str, T.Any]) -> None:
super().__init__('gnustep', environment, kwargs, language='objc')
if not self.is_found:
return
self.modules = kwargs.get('modules', [])
self.compile_args = self.filter_args(
self.get_config_value(['--objc-flags'], 'compile_args'))
self.link_args = self.weird_filter(self.get_config_value(
['--gui-libs' if 'gui' in self.modules else '--base-libs'],
'link_args'))
def find_config(self, versions: T.Optional[T.List[str]] = None, returncode: int = 0) -> T.Tuple[T.Optional[T.List[str]], T.Optional[str]]:
tool = [self.tools[0]]
try:
p, out = Popen_safe(tool + ['--help'])[:2]
except (FileNotFoundError, PermissionError):
return (None, None)
if p.returncode != returncode:
return (None, None)
self.config = tool
found_version = self.detect_version()
if versions and not version_compare_many(found_version, versions)[0]:
return (None, found_version)
return (tool, found_version)
@staticmethod
def weird_filter(elems: T.List[str]) -> T.List[str]:
"""When building packages, the output of the enclosing Make is
sometimes mixed among the subprocess output. I have no idea why. As a
hack filter out everything that is not a flag.
"""
return [e for e in elems if e.startswith('-')]
@staticmethod
def filter_args(args: T.List[str]) -> T.List[str]:
"""gnustep-config returns a bunch of garbage args such as -O2 and so
on. Drop everything that is not needed.
"""
result = []
for f in args:
if f.startswith('-D') \
or f.startswith('-f') \
or f.startswith('-I') \
or f == '-pthread' \
or (f.startswith('-W') and not f == '-Wall'):
result.append(f)
return result
def detect_version(self) -> str:
gmake = self.get_config_value(['--variable=GNUMAKE'], 'variable')[0]
makefile_dir = self.get_config_value(['--variable=GNUSTEP_MAKEFILES'], 'variable')[0]
# This Makefile has the GNUStep version set
base_make = os.path.join(makefile_dir, 'Additional', 'base.make')
# Print the Makefile variable passed as the argument. For instance, if
# you run the make target `print-SOME_VARIABLE`, this will print the
# value of the variable `SOME_VARIABLE`.
printver = "print-%:\n\t@echo '$($*)'"
env = os.environ.copy()
# See base.make to understand why this is set
env['FOUNDATION_LIB'] = 'gnu'
p, o, e = Popen_safe([gmake, '-f', '-', '-f', base_make,
'print-GNUSTEP_BASE_VERSION'],
env=env, write=printver, stdin=subprocess.PIPE)
version = o.strip()
if not version:
mlog.debug("Couldn't detect GNUStep version, falling back to '1'")
# Fallback to setting some 1.x version
version = '1'
return version
class SDL2DependencyConfigTool(ConfigToolDependency):
tools = ['sdl2-config']
tool_name = 'sdl2-config'
def __init__(self, name: str, environment: 'Environment', kwargs: T.Dict[str, T.Any]):
super().__init__(name, environment, kwargs)
if not self.is_found:
return
self.compile_args = self.get_config_value(['--cflags'], 'compile_args')
self.link_args = self.get_config_value(['--libs'], 'link_args')
@staticmethod
def get_methods() -> T.List[DependencyMethods]:
if mesonlib.is_osx():
return [DependencyMethods.PKGCONFIG, DependencyMethods.CONFIG_TOOL, DependencyMethods.EXTRAFRAMEWORK]
else:
return [DependencyMethods.PKGCONFIG, DependencyMethods.CONFIG_TOOL]
class WxDependency(ConfigToolDependency):
tools = ['wx-config-3.0', 'wx-config', 'wx-config-gtk3']
tool_name = 'wx-config'
def __init__(self, environment: 'Environment', kwargs: T.Dict[str, T.Any]):
super().__init__('WxWidgets', environment, kwargs, language='cpp')
if not self.is_found:
return
self.requested_modules = self.get_requested(kwargs)
extra_args = []
if self.static:
extra_args.append('--static=yes')
# Check to make sure static is going to work
err = Popen_safe(self.config + extra_args)[2]
if 'No config found to match' in err:
mlog.debug('WxWidgets is missing static libraries.')
self.is_found = False
return
# wx-config seems to have a cflags as well but since it requires C++,
# this should be good, at least for now.
self.compile_args = self.get_config_value(['--cxxflags'] + extra_args + self.requested_modules, 'compile_args')
self.link_args = self.get_config_value(['--libs'] + extra_args + self.requested_modules, 'link_args')
@staticmethod
def get_requested(kwargs: T.Dict[str, T.Any]) -> T.List[str]:
if 'modules' not in kwargs:
return []
candidates = extract_as_list(kwargs, 'modules')
for c in candidates:
if not isinstance(c, str):
raise DependencyException('wxwidgets module argument is not a string')
return candidates
class VulkanDependencySystem(ExternalDependency):
def __init__(self, name: str, environment: 'Environment', kwargs: T.Dict[str, T.Any], language: T.Optional[str] = None) -> None:
super().__init__(name, environment, kwargs, language=language)
try:
self.vulkan_sdk = os.environ['VULKAN_SDK']
if not os.path.isabs(self.vulkan_sdk):
raise DependencyException('VULKAN_SDK must be an absolute path.')
except KeyError:
self.vulkan_sdk = None
if self.vulkan_sdk:
# TODO: this config might not work on some platforms, fix bugs as reported
# we should at least detect other 64-bit platforms (e.g. armv8)
lib_name = 'vulkan'
lib_dir = 'lib'
inc_dir = 'include'
if mesonlib.is_windows():
lib_name = 'vulkan-1'
lib_dir = 'Lib32'
inc_dir = 'Include'
if detect_cpu_family(self.env.coredata.compilers.host) == 'x86_64':
lib_dir = 'Lib'
# make sure header and lib are valid
inc_path = os.path.join(self.vulkan_sdk, inc_dir)
header = os.path.join(inc_path, 'vulkan', 'vulkan.h')
lib_path = os.path.join(self.vulkan_sdk, lib_dir)
find_lib = self.clib_compiler.find_library(lib_name, environment, [lib_path])
if not find_lib:
raise DependencyException('VULKAN_SDK point to invalid directory (no lib)')
if not os.path.isfile(header):
raise DependencyException('VULKAN_SDK point to invalid directory (no include)')
self.type_name = 'vulkan_sdk'
self.is_found = True
self.compile_args.append('-I' + inc_path)
self.link_args.append('-L' + lib_path)
self.link_args.append('-l' + lib_name)
# TODO: find a way to retrieve the version from the sdk?
# Usually it is a part of the path to it (but does not have to be)
return
else:
# simply try to guess it, usually works on linux
libs = self.clib_compiler.find_library('vulkan', environment, [])
if libs is not None and self.clib_compiler.has_header('vulkan/vulkan.h', '', environment, disable_cache=True)[0]:
self.type_name = 'system'
self.is_found = True
for lib in libs:
self.link_args.append(lib)
return
@staticmethod
def get_methods() -> T.List[DependencyMethods]:
return [DependencyMethods.SYSTEM]
def log_tried(self) -> str:
return 'system'
gl_factory = DependencyFactory(
'gl',
[DependencyMethods.PKGCONFIG, DependencyMethods.SYSTEM],
system_class=GLDependencySystem,
)
sdl2_factory = DependencyFactory(
'sdl2',
[DependencyMethods.PKGCONFIG, DependencyMethods.CONFIG_TOOL, DependencyMethods.EXTRAFRAMEWORK],
configtool_class=SDL2DependencyConfigTool,
)
vulkan_factory = DependencyFactory(
'vulkan',
[DependencyMethods.PKGCONFIG, DependencyMethods.SYSTEM],
system_class=VulkanDependencySystem,
)