update:code shift

nvim/lua/utils/mason.lua

@@ -0,0 +1,31 @@
+local M = {}
+
+function M.setup_install_defaults_command(tools)
+	pcall(vim.api.nvim_del_user_command, "MasonInstallDefaults")
+	vim.api.nvim_create_user_command("MasonInstallDefaults", function()
+		local registry = require("mason-registry")
+		registry.refresh(function()
+			local seen, to_install = {}, {}
+			for _, tool in ipairs(tools) do
+				if tool.mason and not seen[tool.mason] then
+					seen[tool.mason] = true
+					local ok, pkg = pcall(registry.get_package, tool.mason)
+					if ok and not pkg:is_installed() then
+						table.insert(to_install, pkg)
+					end
+				end
+			end
+
+			if #to_install == 0 then
+				vim.notify("MasonInstallDefaults: all tools already installed", vim.log.levels.INFO)
+				return
+			end
+			for _, pkg in ipairs(to_install) do
+				pkg:install()
+			end
+			vim.notify(("MasonInstallDefaults: installing %d tool(s)"):format(#to_install), vim.log.levels.INFO)
+		end)
+	end, { desc = "Install missing Mason tools from tool registry" })
+end
+
+return M