nixvim: Add and configure plugins

Signed-off-by: George Kaklamanos <gkaklas@gkaklas.gr>

home-manager/nixvim/nixvim.nix

@@ -5,7 +5,75 @@
 }: {
   programs.nixvim = {
     enable = true;
+    plugins = {
+      # UI
+      nvim-tree.enable = true;
+      notify.enable = true;
+      which-key.enable = true;
+      headlines.enable = true;
+      neoscroll.enable = true;
+      statuscol.enable = true;
+
+      telescope.enable = true;
+      telescope.extensions = {
+        undo.enable = true;
+        file-browser.enable = true;
+      };
+      lualine = {
+        enable = true;
+        theme = "molokai";
+      };
+      barbar = {
+        enable = true;
+        settings = {
+          preset = "slanted";
+        };
+      };
+
+      # Code visibility
+      rainbow-delimiters.enable = true;
+      indent-blankline.enable = true;
+
+      # Languages
+      nix.enable = true;
+      rustaceanvim.enable = true;
+
+      # Git
+      neogit.enable = true;
+      diffview.enable = true;
+      gitsigns = {
+        enable = true;
+        settings = {
+          current_line_blame = true;
+        };
+      };
+
+      # Uncategorized
+      luasnip.enable = true;
+      cmp.enable = true;
+      cmp_luasnip.enable = true;
+      cmp-path.enable = true;
+      cmp-git.enable = true;
+      friendly-snippets.enable = true;
+      nvim-ufo.enable = true;
+      lazy.enable = true;
+      comment.enable = true;
+      treesitter.enable = true;
+      nvim-colorizer.enable = true;
+    };
   };
+  programs.nixvim.extraPlugins = [
+    pkgs.vimPlugins.legendary-nvim
+    pkgs.vimPlugins.guess-indent-nvim
+    (pkgs.vimUtils.buildVimPlugin {
+      name = "cmp-async-path";
+      src = pkgs.fetchgit {
+        url = "https://codeberg.org/FelipeLema/cmp-async-path";
+        rev = "7df7f3721c45aac26b6e0474087538f4681c9c7a";
+        hash = "sha256-LSWWsn8aKogjWevcbjITXu30a2k3wY3+f2+l7WDAZpY=";
+      };
+    })
+  ];
   programs.nixvim.opts = {
     mousemoveevent = true;
     relativenumber = true;