update neovim setup

home/common/neovim.nix

@@ -1,12 +1,130 @@
 { config, pkgs, ... }:
 
+let
+  buildVimPluginFrom2Nix = pkgs.vimUtils.buildVimPluginFrom2Nix;
+
+  omnisharp-vim = buildVimPluginFrom2Nix {
+    pname = "omnisharp-vim";
+    version = "master";
+    src = pkgs.fetchFromGitHub {
+      owner = "FelschR";
+      repo = "omnisharp-vim";
+      rev = "7a11d9cfb414c14b87efddeadfad4b9a9fc09cfa";
+      sha256 = "03q5lbp9z1xblfn8yr3z6hvky45mfzwf54hjysvyz2hz9yxl92g4";
+    };
+  };
+  nvim-lsp = buildVimPluginFrom2Nix {
+    pname = "nvim-lsp";
+    version = "master";
+    src = pkgs.fetchFromGitHub {
+      owner = "neovim";
+      repo = "nvim-lsp";
+      rev = "bf657b837ee0aad20afd812ea14d73108bb30093";
+      sha256 = "192175fkxdki5damxj0z1bna1qdpsc2di4df7i5mzyw2qikj9y0m";
+    };
+  };
+  # coc-omnisharp = buildVimPluginFrom2Nix {
+  #   pname = "coc-omnisharp";
+  #   version = "master";
+  #   src = pkgs.fetchFromGitHub {
+  #     owner = "coc-extensions";
+  #     repo = "coc-omnisharp";
+  #     rev = "9c062bbae5692b69b5cf918131a972405b2582b9";
+  #     sha256 = "1phjnzgh8918cb915jn92i5vv23lki95q9x0nsjddna3gz3c9k0w";
+  #   };
+  # };
+in
 {
+  nixpkgs.overlays = [
+    (self: super: {
+      neovim-unwrapped = super.neovim-unwrapped.overrideAttrs (oldAttrs: rec {
+        version = "master-lsp";
+        src = pkgs.fetchFromGitHub {
+          owner = "neovim";
+          repo = "neovim";
+          rev = "ed424655bef3169dc5452c5a8212e250dc483f9e";
+          sha256 = "0ri31nxs3lcx9x1gwwx6ch5b5nddqvg5n1gdzskyfwffvg3wwrl3";
+        };
+        nativeBuildInputs = oldAttrs.nativeBuildInputs ++ [
+          pkgs.utf8proc
+        ];
+      });
+    })
+  ];
+
+  home.packages = with pkgs; [
+    fzf
+    nodejs-12_x
+    # haskellPackages.ghcide
+  ];
+
+  home.sessionVariables = {
+    EDITOR = "vim";
+  };
+
   programs.neovim = {
     enable = true;
     viAlias = true;
     vimAlias = true;
     plugins = with pkgs.vimPlugins; [
+      gruvbox
+      editorconfig-vim
+      fzf-vim
+      lightline-vim
+      lightline-ale
+      nerdtree
+      vim-polyglot
+      vim-multiple-cursors
+      vim-surround
+      vim-commentary
+      vim-easymotion
+      # vim-gitgutter
+      camelcasemotion
+
+      # nvim-lsp # nixos-rebuild currently fails
+
+      ale
+      vim-orgmode
       vim-nix
+
+      coc-nvim
+      coc-emmet
+      coc-html
+      coc-css
+      coc-tsserver
+      coc-json
+      coc-yaml
+      # coc-omnisharp # not really maintained
+
+      omnisharp-vim
     ];
+    extraConfig = ''
+      colorscheme gruvbox
+      let g:gruvbox_number_column = 'bg1'
+
+      let mapleader=" "
+      let g:camelcasemotion_key = '<leader>'
+
+      " omnisharp-vim config:
+      let g:OmniSharp_server_stdio = 1
+      let g:OmniSharp_server_path = '/home/felschr/.nix-profile/bin/omnisharp'
+      let g:OmniSharp_selector_ui = 'fzf'
+      let g:OmniSharp_highlight_types = 3
+      let g:ale_linters = {
+      \ 'cs': ['OmniSharp']
+      \}
+      inoremap <silent><expr> <c-space> coc#refresh()
+      
+      " call nvim_lsp#setup("tsserver", {})
+      " call nvim_lsp#setup("ghcide", {})
+
+      set relativenumber
+      set wildmenu
+      set wildmode=longest,list,full
+
+      map ; :Files<CR>
+      map <C-o> :NERDTreeToggle<CR>
+      map <Leader> <Plug>(easymotion-prefix)
+    '';
   };
 }