Meu VIM em 2020
Tags: vim
Published: 2020-06-22 18:25:14

A cerca de 2 anos comecei a me aventurar no VIM. Inicialmente não foi muito fácil, mas após algumas horas de estudo e prática as coisas começaram a sair naturalmente. Comecei a entender os benefícios em ter o modo comando e modo edição, mas ainda faltavam as facilidades de editores como o Sublime e VSCode para que de fato eu pudesse chamar o VIM de meu.

## Qual minha stack?

Em 2020 continuo forte no Python, Javascript (React/React Native) e um pouco de Terraform (me aventuro as vezes kkkk), então alguns plugins estão diretamente ligados a esse mundo.

## Coc.nvim

Depois de várias configurações e plugins (se quiserem posso fazer um post sobre isso), conheci o [Coc.nvim](https://github.com/neoclide/coc.nvim), e que projeto amigos! Com ele podemos fazer o uso dos plugins de VSCode no VIM.

### Minhas extensões

Leia extensões como plugins (se você é o carinha do VSCode). Para instalar é bem simples: `CocInstall extension-name`, segue a lista que estou usando atualmente:

```
  * coc-tsserver 1.5.2 ~/.config/coc/extensions/node_modules/coc-tsserver
  * coc-tabnine 1.2.2 ~/.config/coc/extensions/node_modules/coc-tabnine
  * coc-snippets 2.1.28 ~/.config/coc/extensions/node_modules/coc-snippets
  * coc-prettier 1.1.14 ~/.config/coc/extensions/node_modules/coc-prettier
  * coc-pairs 1.2.21 ~/.config/coc/extensions/node_modules/coc-pairs
  * coc-highlight 1.2.5 ~/.config/coc/extensions/node_modules/coc-highlight
  * coc-floaterm 0.0.7 ~/.config/coc/extensions/node_modules/coc-floaterm
  * coc-explorer 0.7.12 ~/.config/coc/extensions/node_modules/coc-explorer
  * coc-eslint 1.2.7 ~/.config/coc/extensions/node_modules/coc-eslint
  * coc-emmet 1.1.4 ~/.config/coc/extensions/node_modules/coc-emmet
  + es7-react-js-snippets [RTP] 2.8.0 ~/.config/nvim/plugged/vscode-es7-javascript-react-snippets
  + coc-python 1.2.12 ~/.config/coc/extensions/node_modules/coc-python
  + coc-json 1.2.6 ~/.config/coc/extensions/node_modules/coc-json
  + coc-html 1.2.4 ~/.config/coc/extensions/node_modules/coc-html
  + coc-css 1.2.3 ~/.config/coc/extensions/node_modules/coc-css
```
### LSP para Terraform

Ainda não existe uma extensão pronta para o Terraform, mas isso não é um problema já que podemos fazer o download e colocar o server em nossa máquina: [terraform-lsp](https://github.com/juliosueiras/terraform-lsp).

```shell
$ cd terraform-lsp_0.0.10_darwin_amd64  # A pasta pode variar de nome
$ mv terraform-lsp terraform
$ mv terraform /usr/local/bin
```

### Configurações

Assim como no VSCode você pode criar configurações globais e locais: `CocConfig` e `CocLocalConfig` respectivamente. Mantenho todas as configurações no arquivo global.

```json
{
	"languageserver": {
		"terraform": {
			"command": "terraform-lsp",
			"filetypes": ["terraform"],
			"initializationOptions": {}
		}
	},
	"python.linting.flake8Args": [
		"--max-line-length=120"
	],
	"eslint.autoFixOnSave": true,
	"explorer.icon.enableVimDevicons": true,
	"explorer.icon.enableNerdfont": true
}
```

## Vim-clap

Outro plugin bem legal que encontrei é o [vim-clap](https://github.com/liuchengxu/vim-clap). Ele é um buscador que faz uso da funcionalidade `floating_win` no Neovim. Como ele faz uso de providers você precisa instalar alguns binários para utilizar alguns comandos de maneira mais performática:

```shell
$ brew install ripgrep ctags
$ alias ctags="`brew --prefix`/bin/ctags"
$ alias ctags >> ~/.zshrc  # or alias ctags >> ~/.bashrc
```

Depois de configurado: 

![Neovim exibindo janela flutuante com lista de arquivos do diretório atual.](https://dev-to-uploads.s3.amazonaws.com/i/7yioh33dxbtx6750iq6h.png)

## Meu .config.nvim ou .vimrc
Se você utiliza Neovim e não mudou o nome do arquivo então para você é `.init.nvim`, mas se você está no VIM então é o seu `.vimrc`.

Para gerenciar meus plugins utilizo o [vim-plug](https://github.com/junegunn/vim-plug), esse cara é bem tranquilo de utilizar. Após instalar e declarar seus plugins no arquivo de configuração com `Plug 'repo-identifier'` só rodar `:PlugInstall`.

```vim
call plug#begin('~/.config/nvim/plugged')

Plug 'morhetz/gruvbox'
Plug 'challenger-deep-theme/vim', { 'as': 'challenger-deep' }
Plug 'neoclide/coc.nvim', {'branch': 'release'}
Plug 'liuchengxu/vim-clap', { 'do': ':Clap install-binary' }
Plug 'itchyny/lightline.vim'
Plug 'mengelbrecht/lightline-bufferline'
Plug 'liuchengxu/vista.vim'
Plug 'ryanoasis/vim-devicons'
Plug 'thaerkh/vim-workspace'
Plug 'editorconfig/editorconfig-vim'
Plug 'tpope/vim-commentary'
Plug 'ap/vim-css-color'
Plug 'hashivim/vim-terraform'
Plug 'tpope/vim-fugitive'
Plug 'airblade/vim-gitgutter'
Plug 'tpope/vim-surround'
Plug 'sheerun/vim-polyglot'
Plug 'voldikss/vim-floaterm'
Plug 'dsznajder/vscode-es7-javascript-react-snippets', { 'do': 'yarn install --frozen-lockfile && yarn compile' }

call plug#end()

" Leader
let mapleader = "\<Space>"

" General
set encoding=UTF-8
set nu
set relativenumber
set inccommand=split
set clipboard=unnamedplus
syntax on
set foldmethod=indent
set foldlevelstart=20
nnoremap <leader>x :xa<cr>
nnoremap <c-s> :w<cr>
nnoremap <leader><leader>q :qa!<cr>

if has('nvim') || has('termguicolors')
  set termguicolors
endif

" Splits
nnoremap <C-J> <C-W><C-J>
nnoremap <C-K> <C-W><C-K>
nnoremap <C-L> <C-W><C-L>
nnoremap <C-H> <C-W><C-H>
set splitbelow
set splitright

" Ctags
set tags=tags

" Theme
" highlight Normal ctermbg=None
" let g:gruvbox_italic = 1
" let g:gruvbox_invert_signs = 1
" set background=dark
" colorscheme gruvbox
colorscheme challenger_deep

" =====================================
" COC NVIM
" =====================================
"
"
" if hidden is not set, TextEdit might fail.
set hidden

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

" Better display for messages
set cmdheight=2

" You will have bad experience for diagnostic messages when it's default 4000.
set updatetime=300

" don't give |ins-completion-menu| messages.
set shortmess+=c

" always show signcolumns
set signcolumn=yes

" Use tab for trigger completion with characters ahead and navigate.
" Use command ':verbose imap <tab>' to make sure tab is not mapped by other plugin.
inoremap <silent><expr> <TAB>
      \ pumvisible() ? "\<C-n>" :
      \ <SID>check_back_space() ? "\<TAB>" :
      \ coc#refresh()
inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"

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

" Use <c-space> to trigger completion.
inoremap <silent><expr> <c-space> coc#refresh()

" Use <cr> to confirm completion, `<C-g>u` means break undo chain at current position.
" Coc only does snippet and additional edit on confirm.
inoremap <expr> <cr> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"
" Or use `complete_info` if your vim support it, like:
" inoremap <expr> <cr> complete_info()["selected"] != "-1" ? "\<C-y>" : "\<C-g>u\<CR>"

" Use `[g` and `]g` to navigate diagnostics
nmap <silent> [g <Plug>(coc-diagnostic-prev)
nmap <silent> ]g <Plug>(coc-diagnostic-next)

" Remap keys for gotos
nmap <silent> gd <Plug>(coc-definition)
nmap <silent> gy <Plug>(coc-type-definition)
nmap <silent> gi <Plug>(coc-implementation)
nmap <silent> gr <Plug>(coc-references)

" Use K to show documentation in preview window
nnoremap <silent> K :call <SID>show_documentation()<CR>

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

" Highlight symbol under cursor on CursorHold
autocmd CursorHold * silent call CocActionAsync('highlight')

" Remap for rename current word
nmap <leader>rn <Plug>(coc-rename)

" Remap for format selected region
xmap <leader>f  <Plug>(coc-format-selected)
nmap <leader>f  <Plug>(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

" Remap for do codeAction of selected region, ex: `<leader>aap` for current paragraph
xmap <leader>a  <Plug>(coc-codeaction-selected)
nmap <leader>a  <Plug>(coc-codeaction-selected)

" Remap for do codeAction of current line
nmap <leader>ac  <Plug>(coc-codeaction)
" Fix autofix problem of current line
nmap <leader>qf  <Plug>(coc-fix-current)

" Create mappings for function text object, requires document symbols feature of languageserver.
xmap if <Plug>(coc-funcobj-i)
xmap af <Plug>(coc-funcobj-a)
omap if <Plug>(coc-funcobj-i)
omap af <Plug>(coc-funcobj-a)

" Use <TAB> for select selections ranges, needs server support, like: coc-tsserver, coc-python
nmap <silent> <TAB> <Plug>(coc-range-select)
xmap <silent> <TAB> <Plug>(coc-range-select)

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

" Use `:Fold` to fold current buffer
command! -nargs=? Fold :call     CocAction('fold', <f-args>)

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

" Add status line support, for integration with other plugin, checkout `:h coc-status`
set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}

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

" =====================================
" VIM CLAP
" =====================================
"
"
nmap <c-p> :Clap files --hidden<CR>
nmap <c-f> :Clap grep<CR>
nmap <Leader>b :Clap buffers<CR>


" =====================================
" vista.vim
" =====================================
"
function! NearestMethodOrFunction() abort
  return get(b:, 'vista_nearest_method_or_function', '')
endfunction

set statusline+=%{NearestMethodOrFunction()}

" By default vista.vim never run if you don't call it explicitly.
"
" If you want to show the nearest function in your statusline automatically,
" you can add the following line to your vimrc 
autocmd VimEnter * call vista#RunForNearestMethodOrFunction()


" =====================================
" Lightline.vim
" =====================================
"
set laststatus=2

let g:lightline = {
      \ 'colorscheme': 'challenger_deep',
      \ 'active': {
      \   'left': [ [ 'mode', 'paste' ],
      \             [ 'gitbranch', 'readonly', 'filename', 'modified', 'method' ] ]
      \ },
      \ 'component_function': {
      \   'gitbranch': 'fugitive#head',
      \   'filename': 'LightlineFilename',
      \   'method': 'NearestMethodOrFunction'
      \ },
      \ }

function! LightlineFilename()
  return expand('%:t') ==# '' ? '[No Name]' : expand('%:p:h:t') . '/' . expand('%:t') 
endfunction

let g:lightline.tabline          = {'left': [['buffers']], 'right': [['close']]}
let g:lightline.component_expand = {'buffers': 'lightline#bufferline#buffers'}
let g:lightline.component_type   = {'buffers': 'tabsel'}
let g:lightline#bufferline#enable_devicons = 1

set showtabline=2

nnoremap <S-Tab> :bnext<CR>
nnoremap <S-Tab><S-Tab> :bprevious<CR>
nnoremap <C-X> :bdelete<CR>


" =====================================
" Vim Workspace
" =====================================
"
let g:workspace_autosave=1
let g:workspace_autocreate=0


nmap <F9> :CocCommand explorer<CR>

" =====================================
" Terraform
" =====================================
"
let g:terraform_align=1
let g:terraform_fmt_on_save=1

" =====================================
" Fugitive
" =====================================
"
noremap <Leader>gs :Gstatus<CR>
noremap <Leader>gb :Gblame<CR>
```

Deixei algum plugin essencial de fora? Deixem nos comentários. Valeu pessoal!