110 regels
3.3 KiB
Python
110 regels
3.3 KiB
Python
import os
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import ycm_core
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flags = [
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'-Wall',
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'-Wextra',
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'-Werror',
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'-x', 'c',
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'-Iinclude',
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]
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# Set this to the absolute path to the folder (NOT the file!) containing the
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# compile_commands.json file to use that instead of 'flags'. See here for
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# more details: http://clang.llvm.org/docs/JSONCompilationDatabase.html
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#
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# Most projects will NOT need to set this to anything; you can just change the
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# 'flags' list of compilation flags. Notice that YCM itself uses that approach.
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compilation_database_folder = 'obj'
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if os.path.exists( compilation_database_folder ):
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database = ycm_core.CompilationDatabase( compilation_database_folder )
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else:
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database = None
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SOURCE_EXTENSIONS = [ '.cpp', '.cxx', '.cc', '.c', '.m', '.mm' ]
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def DirectoryOfThisScript():
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return os.path.dirname( os.path.abspath( __file__ ) )
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def MakeRelativePathsInFlagsAbsolute( flags, working_directory ):
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if not working_directory:
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return list( flags )
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new_flags = []
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make_next_absolute = False
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path_flags = [ '-isystem', '-I', '-iquote', '--sysroot=' ]
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for flag in flags:
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new_flag = flag
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if make_next_absolute:
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make_next_absolute = False
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if not flag.startswith( '/' ):
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new_flag = os.path.join( working_directory, flag )
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for path_flag in path_flags:
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if flag == path_flag:
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make_next_absolute = True
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break
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if flag.startswith( path_flag ):
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path = flag[ len( path_flag ): ]
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new_flag = path_flag + os.path.join( working_directory, path )
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break
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if new_flag:
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new_flags.append( new_flag )
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return new_flags
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def IsHeaderFile( filename ):
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extension = os.path.splitext( filename )[ 1 ]
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return extension in [ '.h', '.hxx', '.hpp', '.hh' ]
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def GetCompilationInfoForFile( filename ):
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# The compilation_commands.json file generated by CMake does not have entries
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# for header files. So we do our best by asking the db for flags for a
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# corresponding source file, if any. If one exists, the flags for that file
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# should be good enough.
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if IsHeaderFile( filename ):
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basename = os.path.splitext( filename )[ 0 ]
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for extension in SOURCE_EXTENSIONS:
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replacement_file = basename + extension
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if os.path.exists( replacement_file ):
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compilation_info = database.GetCompilationInfoForFile(
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replacement_file )
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if compilation_info.compiler_flags_:
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return compilation_info
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return None
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return database.GetCompilationInfoForFile( filename )
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def FlagsForFile( filename, **kwargs ):
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if database:
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# Bear in mind that compilation_info.compiler_flags_ does NOT return a
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# python list, but a "list-like" StringVec object
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compilation_info = GetCompilationInfoForFile( filename )
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if not compilation_info:
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return None
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final_flags = MakeRelativePathsInFlagsAbsolute(
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compilation_info.compiler_flags_,
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compilation_info.compiler_working_dir_ )
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# NOTE: This is just for YouCompleteMe; it's highly likely that your project
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# does NOT need to remove the stdlib flag. DO NOT USE THIS IN YOUR
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# ycm_extra_conf IF YOU'RE NOT 100% SURE YOU NEED IT.
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try:
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final_flags.remove( '-stdlib=libc++' )
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except ValueError:
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pass
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else:
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relative_to = DirectoryOfThisScript()
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final_flags = MakeRelativePathsInFlagsAbsolute( flags, relative_to )
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return {
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'flags': final_flags,
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'do_cache': True
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}
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