feat: add initial neovim config

Signed-off-by: Lander Van den Bulcke <landervandenbulcke@gmail.com>

home/lander/global/default.nix

@@ -9,6 +9,7 @@
     inputs.catppuccin.homeManagerModules.catppuccin
 
     ./git
+    ./vim.nix
     ./zsh.nix
   ];
 

home/lander/global/vim.nix

@@ -0,0 +1,87 @@
+{ pkgs, ... }:
+{
+  programs.neovim = {
+    enable = true;
+    package = pkgs.neovim-unwrapped;
+    catppuccin.enable = true;
+    viAlias = true;
+    vimAlias = true;
+    vimdiffAlias = true;
+
+    extraLuaConfig = ''
+      vim.opt.autochdir = true
+      vim.opt.backup = false
+
+      vim.opt.autoindent = true
+      vim.opt.cindent = true
+      vim.opt.smartindent = true
+
+      vim.opt.expandtab = true
+      vim.opt.shiftwidth = 2
+      vim.opt.smarttab = true
+      vim.opt.softtabstop = 2
+      vim.opt.tabstop = 2
+
+      vim.opt.backspace = "indent,eol,start"
+      vim.g.mapleader = ';'
+      vim.g.maplocalleader = ';'
+
+      vim.opt.hlsearch = true
+      vim.opt.ignorecase = true
+      vim.opt.showmatch = true
+
+      vim.opt.number = true
+      vim.opt.background = dark
+      vim.opt.termguicolors = true
+
+      function map(mode, lhs, rhs, opts)
+        local options = {noremap = true, silent = true}
+        if opts then
+          options = vim.tbl_extend("force", options, opts)
+        end
+        vim.keymap.set(mode, lhs, rhs, options)
+      end
+
+      map('n', '<leader>t',        ':ToggleTerm<CR>'      )
+      map('i', '<leader><leader>', '<Esc>'                )
+      map('t', '<Esc>',            '<C-\\><C-n>'          )
+      map('n', '<leader>p',        ':NvimTreeToggle<CR>'  )
+      map('n', '<leader><Space>',  ':NvimTreeToggle<CR>'  )
+      map('n', '<leader>ff',       ':Telescope find_files<CR>')
+      map('n', '<leader>fg',       ':Telescope live_grep<CR>' )
+      map('n', '<leader>fb',       ':Telescope buffers<CR>'   )
+      map('n', '<leader>fh',       ':Telescope help_tags<CR>' )
+      map('n', '<leader>fo',       ':Telescope vim_options<CR>' )
+
+      vim.cmd.colorscheme "catppuccin"
+    '';
+
+    plugins = with pkgs.vimPlugins; [
+      nvim-web-devicons
+      telescope-nvim
+      vim-nix
+      vim-visual-multi
+      {
+        plugin = nvim-comment;
+        type = "lua";
+        config = ''
+          require('nvim_comment').setup()
+        '';
+      }
+      {
+        plugin = nvim-tree-lua;
+        type = "lua";
+        config = ''
+          require('nvim-tree').setup({ update_cwd = true })
+        '';
+      }
+      {
+        plugin = lightline-vim;
+        type = "viml";
+        config = ''
+          let g:lightline = {'colorscheme': 'catppuccin'}
+        '';
+      }
+    ];
+  };
+}