Vim-安装 YouCompleteMe

转自：Vim安装YouCompleteMe插件。

安装前的准备

1.首先必须要保证Vim的版本至少是7.3584，并且支持python2脚本。

在vim中输入:version 来查看版本，如果版本低于7.3.584，那么就需要重装vim。

直接在终端中输入python就可查看自己的python版本号。

2.安装vundle插件

首先保证在用户目录下有.vim文件夹和.vimrc文件，没有就新建。

<span style="font-size:18px;">cd
mkdir .vim
vim .vimrc</span>

安装git

Ubuntu下直接输入以下代码即可：

<span style="font-size:18px;">sudo apt-get install git</span>

使用如下命令，查看git版本

<span style="font-size:18px;">git --version</span>

若终端里输出版本信息则说明安装成功。

使用git安装Vundle

<span style="font-size:18px;">$ git clone https://github.com/VundleVim/Vundle.vim.git ~/.vim/bundle/Vundle.vim</span>

修改配置文件

以下是官方配置文件，根据修改即可。

<span style="font-size:18px;">set nocompatible              " be iMproved, required
filetype off                  " required

" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
" alternatively, pass a path where Vundle should install plugins
"call vundle#begin('~/some/path/here')

" let Vundle manage Vundle, required
Plugin 'VundleVim/Vundle.vim'

" The following are examples of different formats supported.
" Keep Plugin commands between vundle#begin/end.
" plugin on GitHub repo
Plugin 'tpope/vim-fugitive'
" plugin from http://vim-scripts.org/vim/scripts.html
Plugin 'L9'
" Git plugin not hosted on GitHub
Plugin 'git://git.wincent.com/command-t.git'
" git repos on your local machine (i.e. when working on your own plugin)
Plugin 'file:///home/gmarik/path/to/plugin'
" The sparkup vim script is in a subdirectory of this repo called vim.
" Pass the path to set the runtimepath properly.
Plugin 'rstacruz/sparkup', {'rtp': 'vim/'}
" Install L9 and avoid a Naming conflict if you've already installed a
" different version somewhere else.
Plugin 'ascenator/L9', {'name': 'newL9'}

" All of your Plugins must be added before the following line
call vundle#end()            " required
filetype plugin indent on    " required
" To ignore plugin indent changes, instead use:
"filetype plugin on
"
" Brief help
" :PluginList       - lists configured plugins
" :PluginInstall    - installs plugins; append `!` to update or just :PluginUpdate
" :PluginSearch foo - searches for foo; append `!` to refresh local cache
" :PluginClean      - confirms removal of unused plugins; append `!` to auto-approve removal
"
" see :h vundle for more details or wiki for FAQ
" Put your non-Plugin stuff after this line</span>

下面是我的配置文件

<span style="font-size:18px;">""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

set nocompatible              " be iMproved, required
filetype off                  " required
"设置Vundle的运行路径并初始化
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
" Vundle安装位置与插件路径不同时，需要Vundle插件的路径
"call vundle#begin('~/some/path/here')
"------------------要安装的插件不能写在此行前！------------------

"Vundle对自己的调用，不可删去
Plugin 'VundleVim/Vundle.vim'

"以下是所支持的各种不同格式的示例
"需要安装的插件应写在调用的vundle#begin和vundle#end之间

"如果插件托管在Github上，写在下方，只写作者名/项目名就行了

Plugin 'Valloric/YouCompleteMe'
Plugin 'majutsushi/tagbar'
Plugin 'vim-syntastic/syntastic'
Plugin 'vim-airline/vim-airline-themes'
Plugin 'vim-airline/vim-airline'

"如果插件来自vim-scripts(官方)，写插件名就行了
" Plugin 'L9'

"如果Git仓库不在Github上，需要提供完整的链接
" Plugin 'git://git.wincent.com/command-t.git'

"本地的插件需要提供文件路径
" Plugin 'file:///home/gmarik/path/to/plugin'
"一定要确保插件就在提供路径的文件夹中(没有子文件夹，直接在这层目录下)

"运行时目录的路径
"Plugin 'rstacruz/sparkup', {'rtp': 'vim/'}

"避免插件间的命名冲突
"Plugin 'ascenator/L9', {'name': 'newL9'}

"------------------要安装的插件不能写在此行后！------------------
call vundle#end()            " required
filetype plugin indent on    " required
"要忽略插件缩进更改，请改用：
"filetype plugin on
"
" 安装插件的相关指令
":PluginList            - 列出已安装插件
":PluginInstall         - 安装新添加的插件;添加`!`或使用`:PluginUpdate`来更新已安装插件
":PluginSearch xxx      - 寻找名字带有xxx的插件;添加`!`刷新本地缓存
":PluginClean           - 删除已经从列表移除的插件;添加`!`静默卸载
":h                     - 帮助和说明文档
"Vundle的设置到此为止了
"</span>

安装完成之后在vim中执行

:PluginInstall

等待安装即可（安装时间视网速而定完成后会有Done!提示）如图所示：

安装开始

1.Ubuntu快速安装

下载完成后检查仓库的完整性

切换到YouCompleteMe目录下，执行以下命令：

git submodule update --init --recursive

<pre code_snippet_id="2320416" snippet_file_name="blog_20170408_8_6616764"></pre>
<pre></pre>
<pre></pre>
<pre></pre>

安装编译YouCompleteMe的必要插件

YouCompleteMe需要编译之后才能使用所以接下来需要编译

确保安装Cmake，和一些Python头文件，如果没有安装执行下面的语句

sudo apt-get install build-essential cmake
sudo apt-get install python-dev python3-dev

不需要语义补全：

cd ~/.vim/bundle/YouCompleteMe
./install.py

需要语义补全的：

cd ~/.vim/bundle/YouCompleteMe
./install.py --clang-completer

过程有点漫长，期间可以看个电影放松一下。

 

配置YCM

打开.vimrc文件加上

"YouCompleteMe 插件配置
let g:ycm_global_ycm_extra_conf='~/.vim/bundle/YouCompleteMe/third_party/ycmd/cpp/ycm/.ycm_extra_conf.py'
nnoremap <leader>jd :YcmCompleter GoToDefinitionElseDeclaration<CR>
let g:ycm_python_binary_path = '/usr/bin/python3'
nmap<C-a> :YcmCompleter FixIt<CR>

然后修改.ycm_extra_conf.py 

vim .vim/bundle/YouCompleteMe/third_party/ycmd/cpp/ycm/.ycm_extra_conf.py

在这个文件中加入

'-isystem',
'/usr/include',
'-isystem',
'/usr/include/c++/5.4.0',
'-isystem',
'/usr/include',
'/usr/include/x86_64-linux-gnu/c++',

注意以上的路径都是自己的路径，参照自己的路径修改即可。
以下是我的配置文件

# This file is NOT licensed under the GPLv3, which is the license for the rest
# of YouCompleteMe.
#
# Here's the license text for this file:
#
# This is free and unencumbered software released into the public domain.
#
# Anyone is free to copy, modify, publish, use, compile, sell, or
# distribute this software, either in source code form or as a compiled
# binary, for any purpose, commercial or non-commercial, and by any
# means.
#
# In jurisdictions that recognize copyright laws, the author or authors
# of this software dedicate any and all copyright interest in the
# software to the public domain. We make this dedication for the benefit
# of the public at large and to the detriment of our heirs and
# successors. We intend this dedication to be an overt act of
# relinquishment in perpetuity of all present and future rights to this
# software under copyright law.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
#
# For more information, please refer to <http://unlicense.org/>

import os
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',
'-Wno-long-long',
'-Wno-variadic-macros',
'-fexceptions',
'-DNDEBUG',
# You 100% do NOT need -DUSE_CLANG_COMPLETER in your flags; only the YCM
# source code needs it.
'-DUSE_CLANG_COMPLETER',
# 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',
'../BoostParts',
'-isystem',
# This path will only work on OS X, but extra paths that don't exist are not
# harmful
'/System/Library/Frameworks/Python.framework/Headers',
#'-isystem',
#'../llvm/include',
#'-isystem',
#'../llvm/tools/clang/include',
#'-I',
#'.',
#'-I',
#'./ClangCompleter',
#'-isystem',
#'./tests/gmock/gtest',
#'-isystem',
#'./tests/gmock/gtest/include',
#'-isystem',
#'./tests/gmock',
#'-isystem',
#'./tests/gmock/include',
 '-isystem',
 '/usr/include',
 '-isystem',
 '/usr/include/c++/5.4.0',
 '-isystem',
 '/usr/include',
 '/usr/include/x86_64-linux-gnu/c++',
]


# 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
#
# You can get CMake to generate this file for you by adding:
#   set( CMAKE_EXPORT_COMPILE_COMMANDS 1 )
# to your CMakeLists.txt file.
#
# Most projects will NOT need to set this to anything; you can just change the
# 'flags' list of compilation flags. Notice that YCM itself uses that approach.
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 )


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_ )

    # NOTE: This is just for YouCompleteMe; it's highly likely that your project
    # does NOT need to remove the stdlib flag. DO NOT USE THIS IN YOUR
    # ycm_extra_conf IF YOU'RE NOT 100% SURE YOU NEED IT.
    try:
      final_flags.remove( '-stdlib=libc++' )
    except ValueError:
      pass
  else:
    relative_to = DirectoryOfThisScript()
    final_flags = MakeRelativePathsInFlagsAbsolute( flags, relative_to )

  return { 'flags': final_flags }

2.完全安装

未完待续

结束