Neovim configuratiob

init.vim

call plug#begin(stdpath('data') . './plugged')
" Plugin Section
Plug 'dracula/vim'
Plug 'kristijanhusak/vim-hybrid-material'

Plug 'preservim/nerdtree'
Plug 'ryanoasis/vim-devicons'
Plug 'neoclide/coc.nvim', {'branch': 'release'}
Plug 'junegunn/fzf', {'dir': '~/.fzf','do': './install --all'}
Plug 'junegunn/fzf.vim' " needed for previews
Plug 'antoinemadec/coc-fzf'
Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }
Plug 'Shougo/deoplete-lsp'
Plug 'Chiel92/vim-autoformat'
Plug 'leafgarland/typescript-vim'
Plug 'peitalin/vim-jsx-typescript'
call plug#end()

" Config Section
set number
" Color cheme
if (has("termguicolors"))
        set termguicolors
endif
syntax enable
colorscheme dracula
"let g:enable_italic_font = 1
"set background=dark
"colorscheme hybrid_reverse
hi Keyword gui=italic guifg='#FFB86C'
hi StorageClass gui=italic guifg='#FFB86C'

" NerdTree config
let g:NERDTreeShowHidden = 1
let g:NERDTreeMinimalUI = 1
let g:NERDTreeIgnore = []
let g:NERDTreeStatusline = ''
" Automaticaly close nvim if NERDTree is only thing left open
autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif
" Toggle
nnoremap <silent> <C-b> :NERDTreeToggle<CR>

" Integrated terminal config
" open new split panes to right and below
set splitright
set splitbelow
" turn terminal to normal mode with escape
tnoremap <Esc> <C-\><C-n>
" start terminal in insert mode
au BufEnter * if &buftype == 'terminal' | :startinsert | endif
" open terminal on ctrl+n
function! OpenTerminal()
        split term://fish
        resize 20
endfunction
nnoremap <c-n> :call OpenTerminal()<CR>

" Quick file search
nnoremap <C-p> :FZF<CR>
let g:fzf_action = {
                        \ 'ctrl-t': 'tab split',
                        \ 'ctrl-h': 'split',
                        \ 'ctrl-v': 'vsplit'
                        \}

" Support for JS and TS
let g:coc_global_extensions = ['coc-emmet', 'coc-css', 'coc-html', 'coc-json', 'coc-prettier', 'coc-tsserver']

" Use silver searcher to tell FZF to ignore files listed in .gitignore
let $FZF_DEFAULT_COMMAND = 'ag -g ""'

" Rust lang integration
" Use LSP omni-completion in Rust files
autocmd Filetype rust setlocal omnifunc=v:lua.vim.lsp.omnifunc

" Enable deoplete autocompletion in Rust files
let g:deoplete#enable_at_startup = 1

" customise deoplete                                                                                                                                                     " maximum candidate window length
call deoplete#custom#source('_', 'max_menu_width', 80)

" Press Tab to scroll _down_ a list of auto-completions
let g:SuperTabDefaultCompletionType = "<c-n>"

" rustfmt on write using autoformat
autocmd BufWrite * :Autoformat

" 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 <tab>' to make sure tab is not mapped by
" other plugin before putting this into your config.
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.
if has('nvim')
        inoremap <silent><expr> <c-space> coc#refresh()
else
        inoremap <silent><expr> <c-@> coc#refresh()
endif

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

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

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

" Symbol renaming.
nmap <leader>rn <Plug>(coc-rename)

" Formatting selected code.
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

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

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

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

" Use CTRL-S for selections ranges.
" Requires 'textDocument/selectionRange' support of LS, ex: coc-tsserver
nmap <silent> <C-s> <Plug>(coc-range-select)
xmap <silent> <C-s> <Plug>(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', <f-args>)

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