YouCompleteMe

#!/usr/bin/env python

import os
import subprocess
import ycm_core

# These are the compilation flags that will be used in case there's no
# compilation database set (by default, one is not set).
# CHANGE THIS LIST OF FLAGS. YES, THIS IS THE DROID YOU HAVE BEEN LOOKING FOR.
flags = [
    '-Wall',
    '-Wextra',
    '-Werror',
    '-fexceptions',
    #'-DNDEBUG',

    # THIS IS IMPORTANT! Without a "-std=<something>" flag, clang won't know which
    # language to use when compiling headers. So it will guess. Badly. So C++
    # headers will be compiled as C headers. You don't want that so ALWAYS specify
    # a "-std=<something>".
    # For a C project, you would set this to something like 'c99' instead of
    # 'c++11'.
    '-std=c++11',

    # ...and the same thing goes for the magic -x option which specifies the
    # language that the files to be compiled are written in. This is mostly
    # relevant for c++ headers.
    # For a C project, you would set this to 'c' instead of 'c++'.
    '-x', 'c++',
    '-isystem', '/usr/include',
    '-isystem', '/usr/local/include',
    '-I', 'include',
    '-I', '.',
]

# include-list파일은 GCC의 포함 파일 목록을 출력한다.
# 내부 내용은 아래와 같다.
# g++ -E -x c++ - -v < /dev/null
include_list = subprocess.check_output('include-list', shell=True)
include_array = include_list.split()
include_flag = '-I'
for directory_cursor in include_array :
    flags += [ include_flag, directory_cursor ]

# Set this to the absolute path to the folder (NOT the file!) containing the
# compile_commands.json file to use that instead of 'flags'. See here for
# more details: http://clang.llvm.org/docs/JSONCompilationDatabase.html
#
# Most projects will NOT need to set this to anything; you can just change the
# 'flags' list of compilation flags.
compilation_database_folder = ''

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 DirectoryOfThisScript():
    return os.path.dirname( os.path.abspath( __file__ ) )


def MakeRelativePathsInFlagsAbsolute( flags, working_directory ):
    if not working_directory:
        return list( flags )
    new_flags = []
    make_next_absolute = False
    path_flags = [ '-isystem', '-I', '-iquote', '--sysroot=' ]
    for flag in flags:
        new_flag = flag

        if make_next_absolute:
            make_next_absolute = False
            if not flag.startswith( '/' ):
                new_flag = os.path.join( working_directory, flag )

        for path_flag in path_flags:
            if flag == path_flag:
                make_next_absolute = True
                break

            if flag.startswith( path_flag ):
                path = flag[ len( path_flag ): ]
                new_flag = path_flag + os.path.join( working_directory, path )
                break

        if new_flag:
            new_flags.append( new_flag )
    return new_flags


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 )


# This is the entry point; this function is called by ycmd to produce flags for
# a file.
def FlagsForFile( filename, **kwargs ):
    if database:
        # Bear in mind that compilation_info.compiler_flags_ does NOT return a
        # python list, but a "list-like" StringVec object
        compilation_info = GetCompilationInfoForFile( filename )
        if not compilation_info:
            return None

        final_flags = MakeRelativePathsInFlagsAbsolute(
            compilation_info.compiler_flags_,
            compilation_info.compiler_working_dir_ )
    else:
        relative_to = DirectoryOfThisScript()
        final_flags = MakeRelativePathsInFlagsAbsolute( flags, relative_to )

    return {
        'flags': final_flags,
        'do_cache': True
    }

import os
import ycm_core

flags = [
  '-Wall',
  '-Wextra',
  '-Werror',
  '-Wno-long-long',
  '-Wno-variadic-macros',
  '-fexceptions',
  '-ferror-limit=10000',
  '-DNDEBUG',
  '-std=c99',
  '-xc',
  '-isystem/usr/include/',
  ]

SOURCE_EXTENSIONS = [ '.cpp', '.cxx', '.cc', '.c', ]

def FlagsForFile( filename, **kwargs ):
  return {
  'flags': flags,
  'do_cache': True
  }