Fix back bootstrapping and healthcheck for fresh install with no packages to fetch.

README.md

@@ -39,14 +39,11 @@ You can add the following Lua code to your `init.lua` to bootstrap **lazy.nvim**
 ```lua
 local lazypath = vim.fn.stdpath("data") .. "/lazy/lazy.nvim"
 if not vim.loop.fs_stat(lazypath) then
-  vim.fn.system({
-    "git",
-    "clone",
-    "--filter=blob:none",
+  vim.fn.system({ "git", "clone",
+    "--filter=blob:none", "--depth=1",
     "https://github.com/folke/lazy.nvim.git",
-    "--branch=stable", -- latest stable release
-    lazypath,
-  })
+    lazypath })
+  vim.fn.system({ "git", "-C", lazypath, "checkout", "tags/stable" }) -- last stable release
 end
 vim.opt.rtp:prepend(lazypath)
 ```

lua/lazy/health.lua

@@ -53,6 +53,9 @@ function M.check()
   end
 
   local spec = Config.spec
+  if spec == nil then
+    ok("no packages setup for installation so far.")
+  else
     for _, plugin in pairs(spec.plugins) do
       M.check_valid(plugin)
       M.check_override(plugin)
@@ -71,6 +74,7 @@ function M.check()
       end
     end
   end
+end
 
 ---@param plugin LazyPlugin
 function M.check_valid(plugin)

lua/lazy/init.lua

@@ -96,14 +96,11 @@ end
 function M.bootstrap()
   local lazypath = vim.fn.stdpath("data") .. "/lazy/lazy.nvim"
   if not vim.loop.fs_stat(lazypath) then
-    vim.fn.system({
-      "git",
-      "clone",
-      "--filter=blob:none",
+    vim.fn.system({ "git", "clone",
+      "--filter=blob:none", "--depth=1",
       "https://github.com/folke/lazy.nvim.git",
-      "--branch=stable", -- latest stable release
-      lazypath,
-    })
+      lazypath })
+    vim.fn.system({ "git", "-C", lazypath, "checkout", "tags/stable" }) -- last stable release
   end
   vim.opt.rtp:prepend(lazypath)
 end