.ycm_extra_conf.py

# Configuration for YouCompleteMe https://github.com/Valloric/YouCompleteMe

import os
import subprocess
import ycm_core

def _getIncludes():
    ext = "./third_party"
    build = "./build"
    includes = [os.path.join(ext, "gtest", "include"),
            os.path.join(build, "rapidjson", "include"),
            os.path.join(build, "cppformat", "include"),
            os.path.join(build, "wte", "include"),
            os.path.join("src")]
    return ["-I" + x for x in includes]

def _getXcodeFolderPath():
    command = ["xcode-select", "-print-path"]
    return subprocess.check_output(command).rstrip()

darwinSdkRoot = os.path.join(_getXcodeFolderPath(),
        "Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk")

flags = [
    "Wall",
    "Wextra",
    "-arch", "x86_64",
    "-isystem", os.path.join(_getXcodeFolderPath(), "Toolchains",
        "XcodeDefault.xctoolchain", "usr", "include", "c++", "v1"),
    "-stdlib=libc++",
    "-O0",
    "-std=c++11",
    "-mmacosx-version-min=10.7",
    "-x", "c++",
    '-D__STDC_FORMAT_MACROS', '-D__STDC_LIMIT_MACROS',
    ] +  _getIncludes()

print flags

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

# Copied from example

compilation_database_folder = ''

if os.path.exists( compilation_database_folder ):
  database = ycm_core.CompilationDatabase( compilation_database_folder )
else:
  database = None

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 )


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
  }