My budding .vimrc for Scala

init.vim

call plug#begin('C:\Users\matej\AppData\Local\nvim\plugged') 
Plug 'ryanoasis/vim-devicons'
Plug 'neoclide/coc.nvim', {'branch': 'release'}

" fugitive - git support
Plug 'tpope/vim-fugitive'
 

" nerd tree
Plug 'scrooloose/nerdtree', { 'on':  'NERDTreeToggle' }

" surround vim
Plug 'tpope/vim-surround'

" nerd commenter
Plug 'scrooloose/nerdcommenter'

Plug 'itchyny/lightline.vim'

"scala-metals + required
Plug 'hrsh7th/nvim-cmp'
Plug 'hrsh7th/cmp-nvim-lsp'
Plug 'hrsh7th/cmp-vsnip'
Plug 'nvim-lua/plenary.nvim'
Plug 'scalameta/nvim-metals'
" colorscheme
Plug 'nanotech/jellybeans.vim'
Plug 'chriskempson/base16-vim'
Plug 'morhetz/gruvbox'
Plug 'w0ng/vim-hybrid'
Plug 'tpope/vim-vividchalk'
Plug 'lokaltog/vim-distinguished'

" glsl color
Plug 'tikhomirov/vim-glsl'

Plug 'drewtempelmeyer/palenight.vim'

call plug#end()

" Let clangd fully control code completion
let g:ycm_clangd_uses_ycmd_caching = 0
" Use installed clangd, not YCM-bundled clangd which doesn't get updates.
let g:ycm_clangd_binary_path = exepath("clangd")


" ================ Suggestions ======================
 
" show wild menu (menu of suggestions) when typing commands in command mode
set path+=**
set wildmenu
set showcmd


" ================ File management ==================
 
" Turn off swap files
set noswapfile
set nobackup
set nowb

" ================ Visualization ====================
 
syntax on
set background=dark



" ================ Indentation ======================

set autoindent
set smartindent
set shiftwidth=4
set tabstop=4
set smarttab
set expandtab

" ================ Number column ====================
 
" numbers
set number " see the line number column

" Toggle relative numbering, and set to absolute on loss of focus or insert mode
autocmd InsertEnter * :set nornu
autocmd InsertLeave * :set rnu
" we don't want to see relative numbering while debugging
" debugger uses its own window, so we can disable rnu when source window loses
" focus
autocmd BufLeave * :set nornu
autocmd BufEnter * call SetRNU()
function! SetRNU()
    if(mode()!='i')
        set rnu 
    endif
endfunction

" ================ Performance ======================

" fix slow scrolling that occurs when using mouse and relative numbers
set lazyredraw
" vim timeout (forgot why I need this or if I do at all)
set ttyfast
set ttimeoutlen=10

" ================ Misc =============================

" highlight matching braces
set showmatch

" How many tenths of a second to blink when matching brackets
set mat=0

" When the last window will have a status line (2 = always)
set laststatus=2

" disable wrapping of long lines into multiple lines
set nowrap

" history
set history=1000

" on some systems the backspace does not work as expected.
" this fixes the problem
set backspace=indent,eol,start

" to avoid hitting:
" 'press ENTER or type command to continue'
" add 'silent' keyword before the command
"


" ################ Lightline ########################
 
" # lightline
 let g:lightline = {
  \   'colorscheme': 'palenight',
  \   'active': {
  \     'left':[ [ 'mode', 'paste' ],
  \              [ 'gitbranch', 'readonly', 'filename', 'modified' ]
  \     ]
  \   },
	\   'component': {
	\     'lineinfo': '%3l:%-2v',
	\   },
  \   'component_function': {
  \     'gitbranch': 'fugitive#head',
  \   }
  \ }
let g:lightline.separator = {
	\   'left': '', 'right': ''
  \}
let g:lightline.subseparator = {
	\   'left': '', 'right': ''
  \}

let g:lightline.tabline = {
  \   'left': [ ['tabs'] ],
  \   'right': [ ['close'] ]
  \ }
set showtabline=2  " Show tabline
set guioptions-=e  " Don't use GUI tabline


" ################ NERDTree #########################
 
" shift+i (show hidden files)
 
" ctrl+n open/closes nerd tree
noremap <C-n> :NERDTreeToggle<CR>

" quit nerd tree on file open
let g:NERDTreeQuitOnOpen = 1

" show nerd tree always on the right instead on the left
let g:NERDTreeWinPos = "right"