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# Copyright 2015 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.
import enum
import os
import re
from .. import mlog
from .. import mesonlib, build
from ..mesonlib import MachineChoice, MesonException, extract_as_list, unholder
from . import get_include_args
from . import ModuleReturnValue
from . import ExtensionModule
from ..interpreter import CustomTargetHolder
from ..interpreterbase import permittedKwargs, FeatureNewKwargs, flatten
from ..dependencies import ExternalProgram
class ResourceCompilerType(enum.Enum):
windres = 1
rc = 2
class WindowsModule(ExtensionModule):
def detect_compiler(self, compilers):
for l in ('c', 'cpp'):
if l in compilers:
return compilers[l]
raise MesonException('Resource compilation requires a C or C++ compiler.')
def _find_resource_compiler(self, state):
# FIXME: Does not handle `native: true` executables, see
# See https://github.com/mesonbuild/meson/issues/1531
# Take a parameter instead of the hardcoded definition below
for_machine = MachineChoice.HOST
if hasattr(self, '_rescomp'):
return self._rescomp
# Will try cross / native file and then env var
rescomp = ExternalProgram.from_bin_list(state.environment, for_machine, 'windres')
if not rescomp or not rescomp.found():
comp = self.detect_compiler(state.environment.coredata.compilers[for_machine])
if comp.id in {'msvc', 'clang-cl', 'intel-cl'}:
rescomp = ExternalProgram('rc', silent=True)
else:
rescomp = ExternalProgram('windres', silent=True)
if not rescomp.found():
raise MesonException('Could not find Windows resource compiler')
for (arg, match, rc_type) in [
('/?', '^.*Microsoft.*Resource Compiler.*$', ResourceCompilerType.rc),
('--version', '^.*GNU windres.*$', ResourceCompilerType.windres),
]:
p, o, e = mesonlib.Popen_safe(rescomp.get_command() + [arg])
m = re.search(match, o, re.MULTILINE)
if m:
mlog.log('Windows resource compiler: %s' % m.group())
self._rescomp = (rescomp, rc_type)
break
else:
raise MesonException('Could not determine type of Windows resource compiler')
return self._rescomp
@FeatureNewKwargs('windows.compile_resources', '0.47.0', ['depend_files', 'depends'])
@permittedKwargs({'args', 'include_directories', 'depend_files', 'depends'})
def compile_resources(self, state, args, kwargs):
extra_args = mesonlib.stringlistify(flatten(kwargs.get('args', [])))
wrc_depend_files = extract_as_list(kwargs, 'depend_files', pop = True)
wrc_depends = extract_as_list(kwargs, 'depends', pop = True)
for d in wrc_depends:
if isinstance(d, CustomTargetHolder):
extra_args += get_include_args([d.outdir_include()])
inc_dirs = extract_as_list(kwargs, 'include_directories', pop = True)
for incd in inc_dirs:
if not isinstance(incd.held_object, (str, build.IncludeDirs)):
raise MesonException('Resource include dirs should be include_directories().')
extra_args += get_include_args(inc_dirs)
rescomp, rescomp_type = self._find_resource_compiler(state)
if rescomp_type == ResourceCompilerType.rc:
# RC is used to generate .res files, a special binary resource
# format, which can be passed directly to LINK (apparently LINK uses
# CVTRES internally to convert this to a COFF object)
suffix = 'res'
res_args = extra_args + ['/nologo', '/fo@OUTPUT@', '@INPUT@']
else:
# ld only supports object files, so windres is used to generate a
# COFF object
suffix = 'o'
res_args = extra_args + ['@INPUT@', '@OUTPUT@']
m = 'Argument {!r} has a space which may not work with windres due to ' \
'a MinGW bug: https://sourceware.org/bugzilla/show_bug.cgi?id=4933'
for arg in extra_args:
if ' ' in arg:
mlog.warning(m.format(arg))
res_targets = []
def add_target(src):
if isinstance(src, list):
for subsrc in src:
add_target(subsrc)
return
src = unholder(src)
if isinstance(src, str):
name_format = 'file {!r}'
name = os.path.join(state.subdir, src)
elif isinstance(src, mesonlib.File):
name_format = 'file {!r}'
name = src.relative_name()
elif isinstance(src, build.CustomTarget):
if len(src.get_outputs()) > 1:
raise MesonException('windows.compile_resources does not accept custom targets with more than 1 output.')
name_format = 'target {!r}'
name = src.get_id()
else:
raise MesonException('Unexpected source type {!r}. windows.compile_resources accepts only strings, files, custom targets, and lists thereof.'.format(src))
# Path separators are not allowed in target names
name = name.replace('/', '_').replace('\\', '_')
res_kwargs = {
'output': name + '_@BASENAME@.' + suffix,
'input': [src],
'command': [rescomp] + res_args,
'depend_files': wrc_depend_files,
'depends': wrc_depends,
}
# instruct binutils windres to generate a preprocessor depfile
if rescomp_type == ResourceCompilerType.windres:
res_kwargs['depfile'] = res_kwargs['output'] + '.d'
res_kwargs['command'] += ['--preprocessor-arg=-MD', '--preprocessor-arg=-MQ@OUTPUT@', '--preprocessor-arg=-MF@DEPFILE@']
res_targets.append(build.CustomTarget('Windows resource for ' + name_format.format(name), state.subdir, state.subproject, res_kwargs))
add_target(args)
return ModuleReturnValue(res_targets, [res_targets])
def initialize(*args, **kwargs):
return WindowsModule(*args, **kwargs)
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