在ubuntu 20.04上安装vim 8 并且配置vim成为可视化工具

以备不时之需

安装软件

sudo apt install vim
sudo apt install cscope
sudo apt install ctags
sudo apt install git
sudo apt install build-essential cmake python-dev python3-dev
 

下载vimrc并

安装插件管理工具vundle.vim

git clone https://github.com/VundleVim/Vundle.vim.git ~/.vim/bundle/Vundle.vim

自动安装其他插件

打开vim,如果提示Nerdtree错误，直接回车忽略，因为还没有安装这个插件
在vim中输入:PluginInstall
等待其自动下载完成后,然后退出vim

编译YCM插件并配置

cd ~/.vim/plugged/YouCompleteMe
./install.py --clang-completer
cp ~/.vim/bundle/YouCompleteMe/third_party/ycmd/examples/.ycm_extra_conf.py ~/.vim

.vimrc文件

" ==============vim基本配置==============
set guifont=Monospace\ 14
set nu!             " 显示行号
syntax enable
syntax on
colorscheme desert

set autowrite   " 自动保存

set foldmethod=syntax
set foldlevel=100  " 启动vim时不要自动折叠代码
set textwidth=80
set formatoptions+=t
set cindent
set smartindent
set noerrorbells
set showmatch
set nobackup 
set noswapfile
" set cursorline

" disable 
noremap <Up> <Nop>
noremap <Down> <Nop>
noremap <Left> <Nop>
noremap <Right> <Nop>

" remap control + arrow key to select windows
noremap <C-Down>  <C-W>j
noremap <C-Up>    <C-W>k
noremap <C-Left>  <C-W>h
noremap <C-Right> <C-W>l
noremap <C-J> <C-W>j
noremap <C-K> <C-W>k
noremap <C-H> <C-W>h
noremap <C-L> <C-W>l

" ==============Vundle插件管理==============
" Vundle manage
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()

" let Vundle manage Vundle, required
Plugin 'VundleVim/Vundle.vim'
Plugin 'Valloric/YouCompleteMe'
Plugin 'scrooloose/nerdtree'
Plugin 'Xuyuanp/nerdtree-git-plugin'
Plugin 'jistr/vim-nerdtree-tabs'
Plugin 'vim-airline/vim-airline' | Plugin 'vim-airline/vim-airline-themes' " Status line"
Plugin 'jiangmiao/auto-pairs'
Plugin 'mbbill/undotree'
Plugin 'gdbmgr'
Plugin 'scrooloose/nerdcommenter'
Plugin 'Yggdroot/indentLine' " Indentation level"
Plugin 'bling/vim-bufferline' " Buffer line"
Plugin 'yianwillis/vimcdoc'
Plugin 'nelstrom/vim-visual-star-search'
Plugin 'ludovicchabant/vim-gutentags'
Plugin 'w0rp/ale'
Plugin 'mbbill/echofunc'
Plugin 'Yggdroot/LeaderF', { 'do': './install.sh' }

" All of your Plugins must be added before the following line
call vundle#end()            " required
filetype plugin indent on    " required


" ==============YCM==============
let g:ycm_server_python_interpreter='/usr/bin/python'
let g:ycm_global_ycm_extra_conf='~/.vim/.ycm_extra_conf.py'
  " YCM 查找定义
let mapleader=','
nnoremap <leader>gl :YcmCompleter GoToDeclaration<CR>
nnoremap <leader>gf :YcmCompleter GoToDefinition<CR>
nnoremap <leader>gg :YcmCompleter GoToDefinitionElseDeclaration<CR>
let g:ycm_collect_identifiers_from_tags_files = 1

set completeopt=menu,menuone   
let g:ycm_add_preview_to_completeopt = 0  " 关闭函数原型提示

let g:ycm_show_diagnostics_ui = 0 " 关闭诊断信息
let g:ycm_server_log_level = 'info'
let g:ycm_min_num_identifier_candidate_chars = 2  " 两个字符触发 补全
let g:ycm_collect_identifiers_from_comments_and_strings = 1 " 收集
let g:ycm_complete_in_strings=1

noremap <c-z> <NOP>
let g:ycm_key_invoke_completion = '<c-z>'   " YCM 里触发语义补全有一个快捷键
let g:ycm_max_num_candidates = 15  " 候选数量

let g:ycm_semantic_triggers =  {
			\ 'c,cpp,python,java,go,erlang,perl': ['re!\w{2}'],
			\ 'cs,lua,javascript': ['re!\w{2}'],
			\ }


" ===========gutentags=============
" 搜索工程目录的标志，碰到这些文件/目录名就停止向上一级目录递归
let g:gutentags_project_root = ['.root', '.svn', '.git', '.hg', '.project', '.gitignore']

" 添加ctags额外参数，会让tags文件变大
" let g:gutentags_ctags_extra_args = ['--fields=+niazlS', '--extra=+q']
 let g:gutentags_ctags_extra_args = ['--fields=+lS']
" let g:gutentags_ctags_extra_args += ['--c++-kinds=+px']
" let g:gutentags_ctags_extra_args += ['--c-kinds=+px']

if isdirectory("kernel/") && isdirectory("mm/")
	let g:gutentags_file_list_command = 'find arch/arm/ mm/ kernel/ include/ init/ lib/'
endif
	

" =======echodoc 显示函数参数===========
" ctags -R --fields=+lS .

"======= NetRedTree=========
autocmd StdinReadPre * let s:std_in=1
autocmd VimEnter * if argc() == 0 && !exists("s:std_in") | NERDTree | endif
let NERDTreeWinSize=20
"let NERDTreeShowLineNumbers=1
let NERDTreeAutoCenter=1
let NERDTreeShowBookmarks=1

let g:winManagerWindowLayout='TagList'
nmap wm :WMToggle<cr>

" ======ALE静态语法检测========
let g:ale_sign_column_always = 1
let g:ale_sign_error = '✗'
let g:ale_sign_warning = 'w'
let g:ale_statusline_format = ['✗ %d', '⚡ %d', '✔ OK']
let g:ale_echo_msg_format = '[%linter%] %code: %%s'
let g:ale_lint_on_text_changed = 'normal'
let g:ale_lint_on_insert_leave = 1
"let g:airline#extensions#ale#enabled = 1
let g:ale_c_gcc_options = '-Wall -O2 -std=c99'
let g:ale_cpp_gcc_options = '-Wall -O2 -std=c++14'
let g:ale_c_cppcheck_options = ''
let g:ale_cpp_cppcheck_options = ''

" ========airline状态栏=========  
let g:airline#extensions#tabline#enabled = 1
let g:airline_section_b = '%-0.10{getcwd()}'
let g:airline_section_c = '%t'
let g:airline#extensions#tagbar#enabled = 1
let g:airline_section_y = ''

"--------------------------------------------------------------------------------
" cscope:建立数据库：cscope -Rbq；  F5 查找c符号； F6 查找字符串；   F7 查找函数定义； F8 查找函数谁调用了，
"--------------------------------------------------------------------------------
if has("cscope")
  set csprg=/usr/bin/cscope
  set csto=1
  set cst
  set nocsverb
  " add any database in current directory
  if filereadable("cscope.out")
      cs add cscope.out
  endif
  set csverb
endif


:set cscopequickfix=s-,c-,d-,i-,t-,e-

nmap <C-_>s :cs find s <C-R>=expand("<cword>")<CR><CR>
nmap <C-_>g :cs find g <C-R>=expand("<cword>")<CR><CR>
nmap <C-_>c :cs find c <C-R>=expand("<cword>")<CR><CR>
nmap <C-_>t :cs find t <C-R>=expand("<cword>")<CR><CR>
nmap <C-_>e :cs find e <C-R>=expand("<cword>")<CR><CR>
nmap <C-_>f :cs find f <C-R>=expand("<cfile>")<CR><CR>
nmap <C-_>i :cs find i ^<C-R>=expand("<cfile>")<CR>$<CR>
nmap <C-_>d :cs find d <C-R>=expand("<cword>")<CR><CR>


"nmap <C-_>s :cs find s <C-R>=expand("<cword>")<CR><CR>
"F5 查找c符号； F6 查找字符串；   F7 查找函数定义； F8 查找函数谁调用了，
nmap <silent> <F5> :cs find s <C-R>=expand("<cword>")<CR><CR> :botright copen<CR><CR> 
nmap <silent> <F6> :cs find t <C-R>=expand("<cword>")<CR><CR> :botright copen<CR><CR>
"nmap <silent> <F7> :cs find g <C-R>=expand("<cword>")<CR><CR> 
nmap <silent> <F7> :cs find c <C-R>=expand("<cword>")<CR><CR> :botright copen<CR><CR>


 "--------------------------------------------------------------------------------
"  自动加载ctags: ctags -R
if filereadable("tags")
      set tags=tags
endif

"--------------------------------------------------------------------------------
" global:建立数据库
"--------------------------------------------------------------------------------
if filereadable("GTAGS")
	set cscopetag
	set cscopeprg=gtags-cscope
	cs add GTAGS
	au BufWritePost *.c,*.cpp,*.h silent! !global -u &
endif