My latest init.vim backup

init.vim

call plug#begin(stdpath('data') . '/plugged') 
Plug 'ryanoasis/vim-devicons'

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

Plug 'shougu/unite.vim'

"autocompletion related
"Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }
"Plug 'deoplete-plugins/deoplete-lsp'

" Java support mb?
Plug 'baobaoit/beande'
"
"scala-metals + required
Plug 'hrsh7th/vim-vsnip' 
Plug 'hrsh7th/nvim-cmp'
Plug 'hrsh7th/cmp-nvim-lsp'
Plug 'hrsh7th/cmp-vsnip'
Plug 'nvim-lua/plenary.nvim'
Plug 'scalameta/nvim-metals'


" tree icons
Plug 'ryanoasis/vim-devicons'
"neo js
Plug 'vimlab/neojs'
" " Conjure
Plug 'Olical/conjure'
" vim-racket
Plug 'wlangstroth/vim-racket'
"statusline - airline
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
"brackets
Plug 'jiangmiao/auto-pairs'
" nerd tree
Plug 'scrooloose/nerdtree', { 'on':  'NERDTreeToggle' }

" surround vim
Plug 'tpope/vim-surround'

" nerd commenter
Plug 'scrooloose/nerdcommenter'

" Python syntax extra
Plug 'vim-python/python-syntax'
"scala-metals + required
Plug 'hrsh7th/vim-vsnip' 
Plug 'hrsh7th/nvim-cmp'
Plug 'hrsh7th/cmp-nvim-lsp'
Plug 'hrsh7th/cmp-vsnip'
Plug 'nvim-lua/plenary.nvim'
" colorscheme
Plug 'nanotech/jellybeans.vim'
Plug 'chriskempson/base16-vim'
Plug 'morhetz/gruvbox'
Plug 'w0ng/vim-hybrid'
Plug 'tpope/vim-vividchalk'
Plug 'jacoborus/tender.vim'
Plug 'zacanger/angr.vim'
Plug 'endel/vim-github-colorscheme'
Plug 'wimstefan/Lightning'
Plug 'jonathanfilip/vim-lucius'
Plug 'dikiaap/minimalist'
Plug 'tomasr/molokai'
Plug 'fmoralesc/molokayo'
Plug 'kyoz/purify'
Plug 'lifepillar/vim-solarized8'
Plug 'jaredgorski/spacecamp'
Plug 'marcopaganini/termschool-vim-theme'
Plug 'vim-scripts/twilight256.vim'
Plug 'vim-scripts/wombat256.vim'
Plug 'vim-scripts/pyte'
Plug 'vim-scripts/mayansmoke'

" glsl color
Plug 'tikhomirov/vim-glsl'

"themes
Plug 'drewtempelmeyer/palenight.vim'
Plug 'romainl/Apprentice'
Plug 'rakr/vim-one'
Plug 'jdsimcoe/abstract.vim'

call plug#end()

let g:airline#extensions#tabline#enabled = 1


" ================ 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

if (has("termguicolors"))
    set termguicolors
endif

hi clear
if exists("syntax_on")
    syntax reset
endif

let g:python_highlight_all = 1

syntax on
syntax enable
set background=dark
colorscheme one
"for syntax
"
"
"" ================ 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

" global
"
let mapleader = ","                                                                                               
let g:mapleader = ","

"F#
" configure deoplete
"let g:deoplete#enable_at_startup = 1
"call deoplete#custom#option({
"  \ 'auto_complete_delay': 100,
"  \ })
"

" LSP
"-----------------------------------------------------------------------------
" nvim-lsp Mappings
"-----------------------------------------------------------------------------
nnoremap <silent> gd          <cmd>lua vim.lsp.buf.definition()<CR>
nnoremap <silent> K           <cmd>lua vim.lsp.buf.hover()<CR>
nnoremap <silent> gi          <cmd>lua vim.lsp.buf.implementation()<CR>
nnoremap <silent> gr          <cmd>lua vim.lsp.buf.references()<CR>
nnoremap <silent> gds         <cmd>lua vim.lsp.buf.document_symbol()<CR>
nnoremap <silent> gws         <cmd>lua vim.lsp.buf.workspac_symbol()<CR>
nnoremap <silent> <leader>rn  <cmd>lua vim.lsp.buf.rename()<CR>
nnoremap <silent> <leader>f   <cmd>lua vim.lsp.buf.formatting()<CR>
nnoremap <silent> <leader>ca  <cmd>lua vim.lsp.buf.code_action()<CR>
nnoremap <silent> <space>d    <cmd>lua vim.lsp.diagnostic.set_loclist()<CR>
nnoremap <silent> [c          <cmd>lua vim.lsp.diagnostic.goto_prev { wrap = false }<CR>
nnoremap <silent> ]c          <cmd>lua vim.lsp.diagnostic.goto_next { wrap = false }<CR>

" completion related settings
" This is similiar to what I use
:lua << EOF
    local cmd = vim.cmd
    local g = vim.g

    local function map(mode, lhs, rhs, opts)
      local options = { noremap = true }
      if opts then
        options = vim.tbl_extend("force", options, opts)
      end
      vim.api.nvim_set_keymap(mode, lhs, rhs, options)
    end

    vim.opt_global.completeopt = { "menu", "noinsert", "noselect" }
    vim.opt_global.shortmess:remove("F"):append("c")
    local cmp = require("cmp")
    cmp.setup({
      sources = {
        { name = "nvim_lsp" },
        { name = "vsnip" },
      },
      snippet = {
        expand = function(args)
          -- Comes from vsnip
          vim.fn["vsnip#anonymous"](args.body)
        end,
      },
      mapping = {
        ["<CR>"] = cmp.mapping.confirm({ select = true }),
        ["<Tab>"] = function(fallback)
          if cmp.visible() then
            cmp.select_next_item()
          else
            fallback()
          end
        end,
        ["<S-Tab>"] = function(fallback)
          if cmp.visible() then
            cmp.select_prev_item()
          else
            fallback()
          end
        end,
      },
    })

    cmd([[augroup lsp]])
    cmd([[autocmd!]])
    cmd([[autocmd FileType scala setlocal omnifunc=v:lua.vim.lsp.omnifunc]])
    cmd([[autocmd FileType scala,sbt lua require("metals").initialize_or_attach(metals_config)]])
    cmd([[augroup end]])

    -- Need for symbol highlights to work correctly
    vim.cmd([[hi! link LspReferenceText CursorColumn]])
    vim.cmd([[hi! link LspReferenceRead CursorColumn]])
    vim.cmd([[hi! link LspReferenceWrite CursorColumn]])
    -- LSP Setup ---------------------
    metals_config = require("metals").bare_config()

    -- matej edition
    metals_config.init_options.statusBarProvider = "on"
    --vim.g["metals_use_global_executable"] = true
    metals_config.settings = {
          showImplicitArguments = true,
            excludedPackages = { "akka.actor.typed.javadsl", "com.github.swagger.akka.javadsl" },
            }
    -- Example if you are including snippets
    local capabilities = vim.lsp.protocol.make_client_capabilities()
    capabilities.textDocument.completion.completionItem.snippetSupport = true

    metals_config.capabilities = capabilities

EOF

" ================ 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
"

" ################ 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"e