YouCompleteMe

需要配套的.vimrc

；sw：.h与.cpp切换

 Issue:YouCompleteMe unavailable no module named future

cd .vim/Vundle/YouCompleteMe

git submodule update --init --recursive

Issue:youcompleteme unavailable: no module named future

sudo apt-get install python-future

Issue:linux 解决找不到python库无法找到的问题Could NOT find PythonLibs (missing: PYTHON_LIBRARIES PYTHON_INCLUDE_DIRS)

sudo apt-get install python-dev python3-dev

下载libclang

sudo apt-get install llvm-3.9 clang-3.9 libclang-3.9-dev libboost-all-dev

编译构建ycm_core库

cd ~/downloads/
mkdir ycm_build
cd ycm_build
cmake -G "Unix Makefiles" -DUSE_SYSTEM_BOOST=ON -DPATH_TO_LLVM_ROOT=~/downloads/clang+llvm/ .\
 ~/.vim/bundle/YouCompleteMe/third_party/ycmd/cpp
cmake --build . --target ycm_core

编译YouCompleteMe

$ cd   ~/.vim/bundle/YouCompleteMe/

$ ./install.sh  --clang-completer

cd ~.vim/plugged/YouCompleteMe (vim)
cd ~/.local/share/nvim/site/plugged/YouCompleteMe (neovim) :)
./install.py

配置.vimrc

let g:ycm_global_ycm_extra_conf='~/.vim/.ycm_extra_conf.py'

import os 
import ycm_core 
flags = [ 
    '-std=c++11', 
    '-O0', 
    '-Werror', 
    '-Weverything', 
    '-Wno-documentation', 
    '-Wno-deprecated-declarations', 
    '-Wno-disabled-macro-expansion', 
    '-Wno-float-equal', 
    '-Wno-c++98-compat', 
    '-Wno-c++98-compat-pedantic', 
    '-Wno-global-constructors', 
    '-Wno-exit-time-destructors', 
    '-Wno-missing-prototypes', 
    '-Wno-padded', 
    '-Wno-old-style-cast',
    '-Wno-weak-vtables',
    '-x', 
    'c++', 
    '-I', 
    '.', 
    '-isystem', 
    '/usr/include/', 
] 
compilation_database_folder = '' 
if 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 ): 
  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: 
    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 
  }