feat(lualine): new root dir component that only shows when cwd != root_dir

lua/lazyvim/util/lualine.lua

@@ -98,4 +98,46 @@ function M.pretty_path(opts)
   end
 end
 
+---@param opts? {cwd:false, subdirectory: true, parent: true, other: true, icon?:string}
+function M.root_dir(opts)
+  opts = vim.tbl_extend("force", {
+    cwd = false,
+    subdirectory = true,
+    parent = true,
+    other = true,
+    icon = "󱉭 ",
+    color = Util.ui.fg("Special"),
+  }, opts or {})
+
+  local function get()
+    local cwd = Util.root.cwd()
+    local root = Util.root.get()
+    local name = vim.fs.basename(root)
+
+    if root == cwd then
+      -- root is cwd
+      return opts.cwd and name
+    elseif root:find(cwd, 1, true) == 1 then
+      -- root is subdirectory of cwd
+      return opts.subdirectory and name
+    elseif cwd:find(root, 1, true) == 1 then
+      -- root is parent directory of cwd
+      return opts.parent and name
+    else
+      -- root and cwd are not related
+      return opts.other and name
+    end
+  end
+
+  return {
+    function()
+      return (opts.icon and opts.icon .. " ") .. get()
+    end,
+    cond = function()
+      return type(get()) == "string"
+    end,
+    color = opts.color,
+  }
+end
+
 return M