neovim: Install lazy.nvim

 Install `lazy.nvim` at startup when it hasn't installed yet.
 https://lazy.folke.io/installation

 Why is `lazy-lock.json` included into this commit?
 -> See at LazyVim/LazyVim#850

 refs #206

neovim/init.lua

@@ -1,3 +1,38 @@
+-- Bootstrap lazy.nvim
+local lazypath = vim.fn.stdpath("data") .. "/lazy/lazy.nvim"
+if not (vim.uv or vim.loop).fs_stat(lazypath) then
+  local lazyrepo = "https://github.com/folke/lazy.nvim.git"
+  local out = vim.fn.system({ "git", "clone", "--filter=blob:none", "--branch=stable", lazyrepo, lazypath })
+  if vim.v.shell_error ~= 0 then
+    vim.api.nvim_echo({
+      { "Failed to clone lazy.nvim:\n", "ErrorMsg" },
+      { out, "WarningMsg" },
+      { "\nPress any key to exit..." },
+    }, true, {})
+    vim.fn.getchar()
+    os.exit(1)
+  end
+end
+vim.opt.rtp:prepend(lazypath)
+
+-- Make sure to setup `mapleader` and `maplocalleader` before
+-- loading lazy.nvim so that mappings are correct.
+-- This is also a good place to setup other settings (vim.opt)
+vim.g.mapleader = " "
+vim.g.maplocalleader = "\\"
+
+-- Setup lazy.nvim
+require("lazy").setup({
+  spec = {
+    -- add your plugins here
+  },
+  -- Configure any other settings here. See the documentation for more details.
+  -- colorscheme that will be used when installing plugins.
+  -- install = { colorscheme = { "habamax" } },
+  -- automatically check for plugin updates
+  checker = { enabled = true },
+})
+
 -- Global Settings
 vim.colorscheme = 'desert'
 vim.opt.title = true

neovim/lazy-lock.json

@@ -0,0 +1,3 @@
+{
+  "lazy.nvim": { "branch": "main", "commit": "72aa3a2624be5dc240646084f7b6a38eb99eb2ce" }
+}