my vimrc with

.vimrc

" ===== vim-go - github.com/fatih/vim-go =====

  " goimports
  let g:gofmt_command ="goimports"

  " gofmt on save
  autocmd FileType go autocmd BufWritePre <buffer> Fmt

  " useful maps
  au FileType go nmap <leader>r <Plug>(go-run)
  au FileType go nmap <leader>d :Godoc<CR>
  au FileType go nmap <leader>df <Plug>(go-def-horizontal)
  au FileType go nmap <leader>gi <Plug>(go-implements)

" ===== ultisnips - github.com/SirVer/ultisnips =====

  " Trigger configuration. Do not use <tab> if you use
  " https://github.com/Valloric/YouCompleteMe.
  let g:UltiSnipsExpandTrigger="<c-j>"

  " :UltiSnipsEdit to splits
  let g:UltiSnipsUsePythonVersion = 2
  let g:UltiSnipsEditSplit="vertical"
  " map
  nmap <leader>s :UltiSnipsEdit<CR>

" ===== tagbar - github.com/majutsushi/tagbar =====

  nmap <leader>] :TagbarToggle<CR>
  autocmd VimEnter * nested :call tagbar#autoopen(1)

" ===== GOTAGS - github.com/jstemmer/gotags =====

  let g:tagbar_type_go = {
      \ 'ctagstype' : 'go',
      \ 'kinds'     : [
          \ 'p:package',
          \ 'i:imports:1',
          \ 'c:constants',
          \ 'v:variables',
          \ 't:types',
          \ 'n:interfaces',
          \ 'w:fields',
          \ 'e:embedded',
          \ 'm:methods',
          \ 'r:constructor',
          \ 'f:functions'
      \ ],
      \ 'sro' : '.',
      \ 'kind2scope' : {
          \ 't' : 'ctype',
          \ 'n' : 'ntype'
      \ },
      \ 'scope2kind' : {
          \ 'ctype' : 't',
          \ 'ntype' : 'n'
      \ },
      \ 'ctagsbin'  : 'gotags',
      \ 'ctagsargs' : '-sort -silent'
  \ }

" ===== YouCompleteMe - github.com/Valloric/YouCompleteMe =====

  " This worked for me
    " git clone https://github.com/Valloric/YouCompleteMe.git ~/.vim/bundle/YouCompleteMe
    " cd ~/.vim/bundle/YouCompleteMe
    " ./install.sh --clang-completer
  
" ===== GoCode =====

  " go get github.com/nsf/gocode
  " cd $GOPATH/src/github.com/nsf/gocode/vim
  " cp -r ./* $HOME/.vim/