pkgs:
let vimrc = with import ../constants.nix; ''
  if exists("g:loaded_airline")
    set noshowmode laststatus=0 noruler
    let g:airline#extensions#tabline#close_symbol = 'X'
    let g:airline#extensions#tabline#enabled = 0
    let g:airline#extensions#tabline#left_alt_sep = ''
    let g:airline#extensions#tabline#left_sep = ''
    let g:airline#extensions#tabline#right_alt_sep = ''
    let g:airline#extensions#tabline#right_sep = ''
    let g:airline#extensions#tabline#show_close_button = 1
    let g:airline#extensions#tabline#show_tab_type = 0
    let g:airline#extensions#tabline#tab_min_count = 2
    let g:airline#extensions#tabline#tab_nr_type = 0
    let g:airline#extensions#tmuxline#enabled = 0
    let g:airline#extensions#wordcount#enabled = 1
    let g:airline_left_alt_sep = ''
    let g:airline_left_sep = ''
    let g:airline_right_alt_sep = ''
    let g:airline_right_sep = ''
    let g:airline_section_z = '%{line(".")}/%{line("$")} %{col(".")}'
  endif
  if exists("g:loaded_airline_themes")
    let g:airline_theme='simple'
  endif

  if exists("g:loaded_syntastic_plugin")
    let g:syntastic_always_populate_loc_list = 1
    let g:syntastic_auto_loc_list = 0
    let g:syntastic_check_on_open = 0
    let g:syntastic_check_on_wq = 0
    map ,s :SyntasticToggleMode<CR>
  endif

  if exists("g:loaded_gundo")
    nnoremap <F5> :GundoToggle<CR>
  endif

  " if tabular
  vmap a= :Tabularize /=<CR>
  vmap a; :Tabularize /::<CR>
  vmap a- :Tabularize /-><CR>

  colorscheme delek
  set t_Co=256

  filetype plugin indent on
  set nocompatible
  set smartcase
  set shiftwidth=2 tabstop=2 expandtab
  set number
  set path=$PWD/**
  set completeopt=menu,longest
  set wildmode=longest,list,full
  set wildignore+=${commaSep ignoredFiles}
  set shortmess+=aI
  set nowritebackup noswapfile
  set mouse=a
  set showmatch
  set encoding=utf8
  set ffs=unix,dos,mac
  set smartindent
  set nowrap
  set nohlsearch
  set clipboard=unnamedplus,autoselect
  set nopaste
  set list listchars=tab:▸\ ,extends:❯,precedes:❮,nbsp:⍽ showbreak=↪
  set foldlevelstart=30

  if exists("g:loaded_netrwPlugin")
    let g:netrw_banner=0
    let g:netrw_browse_split=4
    let g:netrw_altv=1 " open splits to the right
    let g:netrw_liststyle=3 " tree view
    let g:netrw_list_hide=netrw_gitignore#Hide()
    let g:netrw_list_hide.=',\(^\|\s\s\)\zs\.\S\+'
  endif

  call matchadd('colorcolumn', '\%101v', 100)
  highlight folded ctermbg=black
  highlight colorcolumn ctermbg=red
  highlight matchparen cterm=bold ctermbg=black ctermfg=white
  highlight TrailSpace ctermbg=red guibg=darkred
  match TrailSpace /\s\+$/

  " undofile - This allows you to use undos after exiting and restarting
  " This, like swap and backups, uses .vim-undo first, then ~/.vim/undo
  " :help undo-persistence
  if exists("+undofile")
    if isdirectory($HOME . '/.vim/undo') == 0
      :silent !mkdir -p ~/.vim/undo > /dev/null 2>&1
    endif
    set undodir=./.vim-undo//
    set undodir+=~/.vim/undo//
    set undofile
  endif

  nmap <C-j> ddp | vmap <C-j> xp`[V`]
  nmap <C-k> ddkP | vmap <C-k> xkP`[V`]

  nnoremap <silent> <Space> @=(foldlevel('.')?'za':"\<Space>")<CR>
  vnoremap <Space> zf

  command! RandomLine execute 'normal! '.(system('/bin/bash -c "echo -n $RANDOM"') % line('$')).'G'

  function! <SID>StripTrailingWhitespaces()
    let _s=@/
    let l=line(".")
    let c=col(".")

    %s/\s\+$//e

    let @/=_s
    call cursor(l,c)
  endfunction

  function! s:DiffWithSaved()
    let filetype=&ft
    diffthis
    vnew | r # | normal! 1Gdd
    diffthis
    execute "setlocal bt=nofile bh=wipe nobl noswf ro ft=" . filetype
  endfunction
  command! DiffSaved call s:DiffWithSaved()

  if has("autocmd")
    autocmd filetype markdown,text set formatprg=par\ -w80
    autocmd filetype haskell set formatprg=hindent
    autocmd filetype markdown,text set textwidth=80
    autocmd filetype markdown,text set formatoptions+=t
    autocmd bufreadpost *
      \ if line("'\"") > 0 && line("'\"") <= line("$") |
        \ exe "normal! g`\"" |
      \ endif
    autocmd bufwritepre * :call <SID>StripTrailingWhitespaces()
    autocmd bufnewfile,bufread *.md set filetype=markdown.pandoc
    autocmd bufnewfile,bufread *.asm set filetype=nasm
    autocmd bufnewfile,bufread *.tex :packadd vimtex | set filetype=tex
    autocmd bufnewfile,bufread *.rust :packadd rust-vim deoplete-rust
    autocmd bufnewfile,bufread *.nix :packadd vim-nix
    autocmd filetype javascript *.js :packadd vim-javascript
    autocmd bufnewfile,bufread *.ts :packadd vim-typescript
    autocmd filetype haskell :packadd Hoogle
    autocmd bufnewfile,bufread *.do set filetype=sh
    autocmd bufnewfile,bufread config set filetype=conf
    autocmd bufnewfile,bufread *.conf set filetype=conf
    autocmd bufnewfile,bufread *.4th set filetype=forth
    autocmd bufnewfile,bufread *.c set keywordprg=man\ 3
    autocmd bufnewfile,bufread *.h set keywordprg=man\ 3

    autocmd filetype make setlocal noexpandtab

    autocmd bufreadpre * setlocal foldmethod=indent
    autocmd bufwinenter * if &fdm == 'indent' | setlocal foldmethod=manual | endif
  endif
  ''; in
pkgs.vim_configurable.customize {
  name = "vim";
  vimrcConfig.customRC = vimrc;
  vimrcConfig.packages.vim = with pkgs.vimPlugins; {
    start = [
      ctrlp
      deoplete-nvim
      supertab
      syntastic
      tabular
      vim-airline
      vim-airline-themes
      vim-commentary
      vim-eunuch
      vim-fugitive
      vim-gitgutter
      vim-pandoc vim-pandoc-after vim-pandoc-syntax
      vim-repeat
      vim-sensible
      vim-startify
      vim-surround
    ];
    opt = [
      Hoogle
      deoplete-rust
      idris-vim
      vimtex
      rust-vim
      typescript-vim
      vim-javascript
      vim-nix
    ];
  };
}