[neovim] 설치 및 설정(youcompleteme c++ 자동완성) on centos7

 

 

 

* 준비

# 필수

> sudo yum -y install epel-release

> sudo yum -y groupinstall "Development Tools" 

> sudo yum -y install kernel-devel kernel-headers

> sudo yum -y install cmake git

> sudo yum -y install python36-devel python36 python36-pip

 

# (옵션). vim 풀버전 설치(기본 lite 버전 설치되어있음)

> sudo yum -y install vim

 

# vim-plug neovim에 설치 ( https://github.com/junegunn/vim-plug )

> curl -fLo ~/.local/share/nvim/site/autoload/plug.vim --create-dirs \

    https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim

 

# python neovim 설치

> pip3 install --user pynvim

 

 

 

 

* neovim (nvim) 설치

 

yum 설치시  (현재 3.0 설치됨)

> sudo yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

> sudo yum install -y neovim python3-neovim

> vi ~/.bashrc

alias vi='nvim'

> source ~/.bashrc

 

 

직접 설치시 (0.3.8)

릴리즈 : https://github.com/neovim/neovim/releases

 

> wget https://github.com/neovim/neovim/releases/download/v0.3.8/nvim-linux64.tar.gz

> tar xvfz nvim-linux64.tar.gz

> mkdir ~/prog

> mv nvim* ~/prog

> vi ~/.bashrc

export PATH=/home/user1/prog/nvim-linux64/bin:$PATH

alias vi='nvim'

 

> source ~/.bashrc

 

 

 

 

 

* neovim 설정

 

# 환경설정 파일 작성

> mkdir -p ~/.config/nvim

> cat > ~/.config/nvim/init.vim

"----------------------------------------------------------------------------------
"-- config
"----------------------------------------------------------------------------------
" set UTF-8 encoding
set enc=utf-8
set fenc=utf-8
set termencoding=utf-8

set hlsearch
set ignorecase

set nocompatible        " disable vi compatibility (emulation of old bugs)
set autoindent  " use indentation of previous line
set smartindent " use intelligent indentation for C

" configure tabwidth and insert spaces instead of tabs
set tabstop=4        " tab width is 4 spaces
set shiftwidth=4     " indent also with 4 spaces
set expandtab        " expand tabs to spaces
" wrap lines at 120 chars. 80 is somewaht antiquated with nowadays displays.
set textwidth=120
" turn syntax highlighting on
set t_Co=256
syntax on
" colorscheme wombat256
set number      " turn line numbers on
set showmatch   " highlight matching braces

set comments=sl:/*,mb:\ *,elx:\ */      " intelligent comments


"----------------------------------------------------------------------------------
"-- keyboard mappings
"----------------------------------------------------------------------------------
" switch between header/source with F4
map <F4> :e %:p:s,.h$,.X123X,:s,.cpp$,.h,:s,.X123X$,.cpp,<CR>
" goto definition with F12
map <F12> <C-]>


"----------------------------------------------------------------------------------
"-- plugins
"----------------------------------------------------------------------------------
call plug#begin('~/.vim/plugged')

"-------- c++ autocomplete : YCM
Plug 'valloric/youcompleteme'
let g:ycm_key_list_select_completion = ['<C-n>']
let g:ycm_key_list_previous_completion=['<C-p>']

let g:ycm_confirm_extra_conf = 0
let g:ycm_autoclose_preview_window_after_completion = 1
let g:ycm_min_num_of_chars_for_completion = 1
"let g:ycm_server_python_interpreter = '/usr/bin/python3'
let g:ycm_collect_identifiers_from_comments_and_strings = 1
let g:ycm_complete_in_strings = 1
let g:ycm_complete_in_comments = 1
let g:ycm_min_num_of_chars_for_completion = 1
let g:ycm_filetype_blacklist = {}
let g:ycm_global_ycm_extra_conf = '~/.vim/.ycm_extra_conf.py'

" 변수나 함수에서 \g, \gg, .. 로 사용 가능
" 자동완성은 CTRL + SPACE
" 점프 후 뒤돌아갈떈 CTRL + o
" 점프 후 뒤돌아간 후 다시 앞으로 갈땐 CTRL + i
nnoremap <leader>g :YcmCompleter GoTo<CR>
nnoremap <leader>gg :YcmCompleter GoToImprecise<CR>
nnoremap <leader>d :YcmCompleter GoToDeclaration<CR>
nnoremap <leader>t :YcmCompleter GetType<CR>
nnoremap <leader>p :YcmCompleter GetParent<CR>

" nvim-gdb
Plug 'sakhnik/nvim-gdb', { 'do': ':!./install.sh \| UpdateRemotePlugins' }

" nerdtree
Plug 'scrooloose/nerdtree'
Plug 'jistr/vim-nerdtree-tabs'          "Toggle nerd tree with one key

" auto complete
Plug 'jiangmiao/auto-pairs'             "insert or delete brackets, parens, quotes in pair

" git
Plug 'airblade/vim-gitgutter'           "Show git status in vim
Plug 'tpope/vim-fugitive'               "syntax error

" find file
Plug 'ctrlpvim/ctrlp.vim'               "Ctrl + P for search file
Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
Plug 'junegunn/fzf.vim'

call plug#end()


"----------------------------------------------------------------------------------
"-- plugin config
"----------------------------------------------------------------------------------

"Python 3 executable file location

let g:python3_host_prog = "/usr/bin/python3"

" nerd tree
" nerd tree 왼쪽 생성(F7)
" nerd tree 현재 파일 위치를 tree에 표시(\r)
let NERDTreeWinPos = "left"
nmap <F7> :NERDTree<CR>
nnoremap <leader>r :NERDTreeFind<CR>

 

# nvim 실행 후 플러그인 설치

> nvim

: PlugInstall

: UpdateRemotePlugins

 

 

# YouCompleteMe 설치

> cd /home/user1/.vim/plugged/youcompleteme

> git submodule update --init --recursive

> python3 ./install.py --clang-completer

 

## 설치 확인 (정상: 0)

> echo $?

 

 

# YouCompleteMe 설정

## global 설정파일

> wget https://raw.githubusercontent.com/Valloric/ycmd/66030cd94299114ae316796f3cad181cac8a007c/.ycm_extra_conf.py -P ~/.vim/

 

## 작업할 디렉토리 설정 파일

> wget https://raw.githubusercontent.com/Valloric/ycmd/66030cd94299114ae316796f3cad181cac8a007c/.ycm_extra_conf.py

 

## 다운받아둔 .ycm_extra_conf.py 파일

.ycm_extra_conf.py

다운로드

 

 

 

 

 

* ScreenShot

 

 

 

 

 

 

 

 

* 참고

neovim 상태 체크 명령

: CheckHealth

 

youcompleteme 가 동작하지 않는 경우

에러: The ycmd server SHUT DOWN (restart with ':YcmRestartServer')

https://blog.m157q.tw/posts/2017/11/27/youcompleteme-ycmd-server-shut-down-restart-with-ycmrestartserver/

에러: ModuleNotFoundError: No module named 'ycm_core'

https://github.com/ycm-core/YouCompleteMe/issues/2729

 

혹은 재설치 시도

~/.vim/plugged 로 이동 후 youcompleteme 삭제.

nvim 실행 후 :PlugClean, :PlugInstall 수행

~/.vim/plugged/youcompleteme 이동 후 python3 ./install.py --clang-completer 실행