shell.nix: tweak vimrc

shell.nix

@@ -36,10 +36,9 @@ in pkgs.stdenv.mkDerivation {
           noremap <C-n> :tabn<CR>
           noremap <C-p> :tabp<CR>
           let g:ctrlp_map = '<tab>'
-          set wildignore+=*/site/*,*.so,*.swp,*.zip
           let g:ctrlp_custom_ignore = {
             \ 'dir':  '\v[\/]\.(git|hg|svn|)$$',
-            \ 'file': '\v\.(exe|so|dll)$$',
+            \ 'file': '\v\.(exe|so|dll|so|swp|zip|aux|log|fdb_latexmk|fdb|dvi|lof|lot|pdf|fls|toc|gz|latexmain)$$',
             \ }
 
           " allways show status line
@@ -50,17 +49,6 @@ in pkgs.stdenv.mkDerivation {
           set expandtab
           "set textwidth=80
 
-          set wildignore+=*/site/*,*.so,*.swp,*.zip
-          let g:ctrlp_custom_ignore = {
-            \ 'dir':  '\v[\/]\.(git|hg|svn|)$$',
-            \ 'file': '\v\.(exe|so|dll)$$',
-            \ }
-          " }
-
-          " spelling {{{
-          au BufRead,BufNewFile *.md,*.markdown setlocal spell spelllang=en_us,de_de
-          " }}}
-
           " sync default register to clipboard {
           if has('unnamedplus')
             set clipboard=unnamedplus
@@ -96,6 +84,11 @@ in pkgs.stdenv.mkDerivation {
           au Syntax * RainbowParenthesesLoadSquare
           au Syntax * RainbowParenthesesLoadBraces
           " }
+          set backspace=indent,eol,start
+          colorscheme PaperColor
+
+          " Latex Related {{{
+          au BufRead,BufNewFile *.tex,*.md,*.markdown setlocal spell spelllang=en_us
 
           let g:vimtex_view_method = 'zathura'
 
@@ -105,7 +98,6 @@ in pkgs.stdenv.mkDerivation {
 					let g:vimtex_indent_enabled = 1
 					let g:vimtex_indent_bib_enabled = 1
 
-
 					if !exists('g:ycm_semantic_triggers')
 						let g:ycm_semantic_triggers = {}
 					endif
@@ -120,15 +112,17 @@ in pkgs.stdenv.mkDerivation {
 						\ 're!\\includestandalone(\s*\[[^]]*\])?\s*\{[^}]*',
 						\ ]
 
-          set t_ut=
-          colorscheme PaperColor
+          function! ViewerCallback() dict
+            call self.forward_search(self.out)
+          endfunction
+          let g:vimtex_view_zathura_hook_callback = 'ViewerCallback'
+          " }}}
          '';
 
          vam.knownPlugins = pkgs.vimPlugins;
          vam.pluginDictionaries = [
            "youcompleteme"
            "vim-airline"
-           "vim-addon-nix"
            "ctrlp"
            "vim-css-color"
            "rainbow_parentheses"