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# Copyright (c) 2017-2018 Uber Technologies, Inc.
#
# 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 os
import ycm_core
def DirectoryOfThisScript():
return os.path.dirname( os.path.abspath( __file__ ) )
project_dir = DirectoryOfThisScript()
try:
with open('build/_3rdParty/Hunter/install-root-dir') as f:
hunter_install_dir = f.readline()
except IOError:
# Ignore if file does not exist
hunter_install_dir = ''
flags = [
'-Wall',
'-Werror',
'-pedantic',
'-std=c++11',
'-x',
'c++',
'-DBOOST_COROUTINES_NO_DEPRECATION_WARNING=1',
'-DGTEST_HAS_TR1_TUPLE=0',
'-DGTEST_USE_OWN_TR1_TUPLE=0',
'-isystem',
'/usr/local/include',
'-I',
os.path.join(project_dir, 'src'),
'-I',
os.path.join(project_dir, 'build/src')
]
if hunter_install_dir:
flags += ['-I', hunter_install_dir]
compilation_database_folder = os.path.join(project_dir, 'build')
if os.path.exists( compilation_database_folder ):
database = ycm_core.CompilationDatabase( compilation_database_folder )
else:
database = None
SOURCE_EXTENSIONS = [ '.cpp', '.cxx', '.cc', '.c', '.m', '.mm' ]
def IsHeaderFile( filename ):
extension = os.path.splitext( filename )[ 1 ]
return extension in [ '.h', '.hxx', '.hpp', '.hh' ]
def GetCompilationInfoForFile( filename ):
# The compilation_commands.json file generated by CMake does not have entries
# for header files. So we do our best by asking the db for flags for a
# corresponding source file, if any. If one exists, the flags for that file
# should be good enough.
if IsHeaderFile( filename ):
basename = os.path.splitext( filename )[ 0 ]
for extension in SOURCE_EXTENSIONS:
replacement_file = basename + extension
if os.path.exists( replacement_file ):
compilation_info = database.GetCompilationInfoForFile(
replacement_file )
if compilation_info.compiler_flags_:
return compilation_info
return None
return database.GetCompilationInfoForFile( filename )
def FlagsForFile( filename, **kwargs ):
if not database:
return {
'flags': flags,
'include_paths_relative_to_dir': DirectoryOfThisScript()
}
compilation_info = GetCompilationInfoForFile( filename )
if not compilation_info:
return None
# Bear in mind that compilation_info.compiler_flags_ does NOT return a
# python list, but a "list-like" StringVec object.
final_flags = list( compilation_info.compiler_flags_ )
return {
'flags': final_flags,
'include_paths_relative_to_dir': compilation_info.compiler_working_dir_
}
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