1 files changed, 52 insertions, 0 deletions
diff --git a/modules/luci-lua-runtime/luasrc/ucodebridge.lua b/modules/luci-lua-runtime/luasrc/ucodebridge.lua
new file mode 100644
index 0000000000..fa4943dc99
--- /dev/null
+++ b/modules/luci-lua-runtime/luasrc/ucodebridge.lua
@@ -0,0 +1,52 @@
+-- Copyright 2022 Jo-Philipp Wich <jo@mein.io>
+-- Licensed to the public under the Apache License 2.0.
+
+local coroutine, assert, error, type, require = coroutine, assert, error, type, require
+local tmpl = require "luci.template"
+local util = require "luci.util"
+local http = require "luci.http"
+
+
+--- LuCI ucode bridge library.
+module "luci.ucodebridge"
+
+local function run(fn, ...)
+	local co = coroutine.create(fn)
+	local ok, ret
+
+	while coroutine.status(co) ~= "dead" do
+		ok, ret = coroutine.resume(co, ...)
+
+		if not ok then
+			error(ret)
+		end
+	end
+
+	return ret
+end
+
+function compile(path)
+	run(function(path)
+		return tmpl.Template(path)
+	end, path)
+end
+
+function render(path, scope)
+	run(tmpl.render, path, scope)
+end
+
+function call(modname, method, ...)
+	return run(function(module, method, ...)
+		local mod = require(modname)
+		local func = mod[method]
+
+		assert(func ~= nil,
+		       'Cannot resolve function "' .. method .. '". Is it misspelled or local?')
+
+		assert(type(func) == "function",
+		       'The symbol "' .. method .. '" does not refer to a function but data ' ..
+		       'of type "' .. type(func) .. '".')
+
+		return func(...)
+	end, modname, method, ...)
+end