从0开始在centos安装neovim-go开发环境

一、配置GO环境

在自己的环境变量中配置好go的path

 77 export GOROOT=/usr/local/go
 78 export PATH=$PATH:$GOROOT/bin
 79 export GOPATH=/data/gowork

二、安装nvim

1.在官网下载 nvim-linux64.tar.gz 这个安装包
tar -zxvf nvim-linux64.tar.gz 解压后使用 ln -s建立链接

ln -s /root/nvim/nvim-linux64/bin/nvim nvim

#在配置文件中添加声明，使nvim成为关键字
export PATH=$PATH:/root/nvim/nvim-linux64/bin

然后就可以像使用vim一样使用nvim了

三、安装nodejs & pythone3

因为后续安装的一些代码补全插件需要这两个组件的支持，所以先提前安装

1.安装nodejs

1.先去https://npm.taobao.org/mirror...
2.tar zxvf 解压到想要存放的文件目录下
3.在/etc/profile 文件中声明

export PATH=$PATH:/root/node/node-v14.16.1-linux-x64/bin

4.设立链接

ln -s  /root/node/node-v14.16.1-linux-x64/bin/npm ~/npm
ln -s  /root/node/node-v14.16.1-linux-x64/bin/node ~/node
#source 让配置的path生效
source /etc/profile

[root@VM-0-16-centos ~]# npm -v
6.14.12
[root@VM-0-16-centos ~]# node -v
v14.16.1


检查版本成功即安装成功

2.安装python3

1.下载python安装包
https://www.python.org/ftp/py...

2.tar -xzf Python-3.8.6rc1.tgz
3.进入解压完的目录执行如下命令，路径为想安装的py路径
./configure --prefix="/root/python3.8"
4.等执行完后继续在解压完的目录下依次执行
make
make install
5.编译完成后在环境变量中添加

alias python3=/root/python3.8/bin/python3.8
alias pip3=/root/python3.8/bin/pip3.8

然后查看
pthone3 -v
pip3 -v
检验安装成功

四、安装nvim的插件

1.创建 mkdir -p ~/./config/nvim 文件夹
然后在~/./config/nvim中创建

init.vim 文件（相当于配置文件）
pulgged 文件夹（在配置文件中设置插件下载保存的位置）
autoload 文件夹（放plug.vim）

2.git clone https://github.com/junegunn/v...
进入vim-plug目录将 plug.vim这个文件拷贝到刚刚创建的autoload文件夹中

3.nvim 打开init.vim
输入

" 插件开始的位置
call plug#begin('~/.vim/plugged')

Plug 'fatih/vim-go', { 'tag': '*' }
Plug 'neoclide/coc.nvim',{'branch':'release'}
Plug 'Valloric/YouCompleteMe'
" 插件结束的位置，插件全部放在此行上面
call plug#end()

这三个是go的主要插件

这个是vim-go相关的配置，也是写在init.vim里就行了。（不要和插件内容写混了）

" vim-go
let g:go_fmt_command = 'goimports'
let g:go_autodetect_gopath = 1
" let g:go_bin_path = '$GOBIN'

let g:go_highlight_types = 1
let g:go_highlight_fields = 1
let g:go_highlight_functions = 1
let g:go_highlight_function_calls = 1
let g:go_highlight_extra_types = 1
let g:go_highlight_generate_tags = 1

" Open :GoDeclsDir with ctrl-g
nmap  :GoDeclsDir
imap  :GoDeclsDir

augroup go
  autocmd!
  autocmd BufNewFile,BufRead *.go setlocal noexpandtab tabstop=4 shiftwidth=4
augroup END

4.然后打开一个nvim窗口，在命令模式下输入 PlugInstall 安装插件

5.安装完毕后再在命令模式下输入 GoInstallBinaries 安装vim-go所需要的一些插件
这个默认是安装在gobin目录下的，如果下载失败输入
export GOPROXY=https://goproxy.io,direct
再重试下

6.再打开nvim 在命令模式下输入 CocInstall coc-go coc-json coc-snippets coc-yaml
安装coc相关的插件

最后是一些init.vim的配置

"==============================================================================
" vim 基础配置 
"==============================================================================
"显示行号
set number

"开启语法高亮
set syntax=on

"设置以unix的格式保存文件"
set fileformat=unix

"设置table长度
set tabstop=4

"同上
set shiftwidth=4

"文件编码
set fenc=utf-8

"启用鼠标
set mouse=a

"突出显示当前行
"set cursorline

"文件编码
set encoding=utf-8

"自动缩进
set autoindent

set softtabstop=4

"自动缩进所使用的空白长度指示
set shiftwidth=4
set expandtab

"==============================================================================
" vim plug 
"==============================================================================

call plug#begin('~/.vim/plugged')
Plug 'scrooloose/nerdtree'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
Plug 'mhinz/vim-startify'
Plug 'fatih/vim-go'
Plug 'neoclide/coc.nvim', {'branch': 'release'}

call plug#end()

"==============================================================================
" vim plug config 
"==============================================================================



"----------------------------------------------------------------------------
" NERDTree config
"----------------------------------------------------------------------------
 " F2键快速调出和隐藏它
 map  :NERDTreeToggle
 " 关闭vim时，如果打开的文件除了NERDTree没有其他文件时，它自动关闭，减少多次按:q!
 autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif
 " 打开vim时自动打开NERDTree
 autocmd vimenter * NERDTree
 "设定 NERDTree 视窗大小
 let g:NERDTreeWinSize = 25

"----------------------------------------------------------------------------
" vim-go config
"----------------------------------------------------------------------------
let g:go_fmt_command = 'goimports'
let g:go_autodetect_gopath = 1
" let g:go_bin_path = '$GOBIN'

let g:go_highlight_types = 1
let g:go_highlight_fields = 1
let g:go_highlight_functions = 1
let g:go_highlight_function_calls = 1
let g:go_highlight_extra_types = 1
let g:go_highlight_generate_tags = 1

" Open :GoDeclsDir with ctrl-g
nmap  :GoDeclsDir
imap  :GoDeclsDir

augroup go
  autocmd!
  autocmd BufNewFile,BufRead *.go setlocal noexpandtab tabstop=4 shiftwidth=4
augroup END


"----------------------------------------------------------------------------
" coc.vim config
"----------------------------------------------------------------------------
" TextEdit might fail if hidden is not set.
set hidden

" Some servers have issues with backup files, see #649.
set nobackup
set nowritebackup

" Give more space for displaying messages.
set cmdheight=2

" Having longer updatetime (default is 4000 ms = 4 s) leads to noticeable
" delays and poor user experience.
set updatetime=300

" Don't pass messages to |ins-completion-menu|.
set shortmess+=c

" Always show the signcolumn, otherwise it would shift the text each time
" diagnostics appear/become resolved.
if has("patch-8.1.1564")
  " Recently vim can merge signcolumn and number column into one
  set signcolumn=number
else
  set signcolumn=yes
endif

" Use tab for trigger completion with characters ahead and navigate.
" NOTE: Use command ':verbose imap ' to make sure tab is not mapped by
" other plugin before putting this into your config.
inoremap  
      \ pumvisible() ? "\" :
      \ check_back_space() ? "\" :
      \ coc#refresh()
inoremap  pumvisible() ? "\" : "\"

function! s:check_back_space() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1]  =~# '\s'
endfunction

" Use  to trigger completion.
if has('nvim')
  inoremap   coc#refresh()
else
  inoremap   coc#refresh()
endif

" Use  to confirm completion, `u` means break undo chain at current
" position. Coc only does snippet and additional edit on confirm.
"  could be remapped by other vim plugin, try `:verbose imap `.
if exists('*complete_info')
  inoremap   complete_info()["selected"] != "-1" ? "\" : "\u\"
else
  inoremap   pumvisible() ? "\" : "\u\"
endif

" Use `[g` and `]g` to navigate diagnostics
" Use `:CocDiagnostics` to get all diagnostics of current buffer in location list.
nmap  [g (coc-diagnostic-prev)
nmap  ]g (coc-diagnostic-next)

" GoTo code navigation.
nmap  gd (coc-definition)
nmap  gy (coc-type-definition)
nmap  gi (coc-implementation)
nmap  gr (coc-references)

" Use K to show documentation in preview window.
nnoremap  K :call show_documentation()

function! s:show_documentation()
  if (index(['vim','help'], &filetype) >= 0)
    execute 'h '.expand('')
  else
    call CocAction('doHover')
  endif
endfunction

" Highlight the symbol and its references when holding the cursor.
autocmd CursorHold * silent call CocActionAsync('highlight')

" Symbol renaming.
nmap rn (coc-rename)

" Formatting selected code.
xmap f  (coc-format-selected)
nmap f  (coc-format-selected)

augroup mygroup
  autocmd!
  " Setup formatexpr specified filetype(s).
  autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')
  " Update signature help on jump placeholder.
  autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
augroup end

" Applying codeAction to the selected region.
" Example: `aap` for current paragraph
xmap a  (coc-codeaction-selected)
nmap a  (coc-codeaction-selected)

" Remap keys for applying codeAction to the current buffer.
nmap ac  (coc-codeaction)
" Apply AutoFix to problem on the current line.
nmap qf  (coc-fix-current)

" Map function and class text objects
" NOTE: Requires 'textDocument.documentSymbol' support from the language server.
xmap if (coc-funcobj-i)
omap if (coc-funcobj-i)
xmap af (coc-funcobj-a)
omap af (coc-funcobj-a)
xmap ic (coc-classobj-i)
omap ic (coc-classobj-i)
xmap ac (coc-classobj-a)
omap ac (coc-classobj-a)

" Use CTRL-S for selections ranges.
" Requires 'textDocument/selectionRange' support of LS, ex: coc-tsserver
nmap   (coc-range-select)
xmap   (coc-range-select)

" Add `:Format` command to format current buffer.
command! -nargs=0 Format :call CocAction('format')

" Add `:Fold` command to fold current buffer.
command! -nargs=? Fold :call     CocAction('fold', )

" Add `:OR` command for organize imports of the current buffer.
command! -nargs=0 OR   :call     CocAction('runCommand', 'editor.action.organizeImport')

" Add (Neo)Vim's native statusline support.
" NOTE: Please see `:h coc-status` for integrations with external plugins that
" provide custom statusline: lightline.vim, vim-airline.
set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}

" Mappings for CoCList
" Show all diagnostics.
nnoremap  a  :CocList diagnostics
" Manage extensions.
nnoremap  e  :CocList extensions
" Show commands.
nnoremap  c  :CocList commands
" Find symbol of current document.
nnoremap  o  :CocList outline
" Search workspace symbols.
nnoremap  s  :CocList -I symbols
" Do default action for next item.
nnoremap  j  :CocNext
" Do default action for previous item.
nnoremap  k  :CocPrev
" Resume latest coc list.
nnoremap  p  :CocListResume

参考:
https://pokitpeng.github.io/p...
https://learnku.com/articles/...