Add utils.ver_cmp() builtin

internal/builtins/reader.go

@@ -34,7 +34,7 @@ func newStarlarkReader(r io.Reader) starlarkReader {
 		"read_all":          starlark.NewBuiltin("reader.read_all", sr.readAll),
 		"read_all_string":   starlark.NewBuiltin("reader.read_all_string", sr.readAllString),
 		"read_json":         starlark.NewBuiltin("reader.read_json", sr.readJSON),
-		"read_msgpack":      starlark.NewBuiltin("read_msgpack", sr.readMsgpack),
+		"read_msgpack":      starlark.NewBuiltin("reader.read_msgpack", sr.readMsgpack),
 		"close":             starlark.NewBuiltin("reader.close", sr.closeReader),
 	})
 

internal/builtins/register.go

@@ -43,5 +43,6 @@ func Register(sd starlark.StringDict, opts *Options) {
 	sd["updater"] = updaterModule(opts.Config)
 	sd["log"] = logModule(opts.Name)
 	sd["json"] = starlarkjson.Module
+	sd["utils"] = utilsModule
 	sd["register_webhook"] = registerWebhook(opts.Mux, opts.Config, opts.Name)
 }

internal/builtins/utils.go

@@ -0,0 +1,23 @@
+package builtins
+
+import (
+	"go.elara.ws/vercmp"
+	"go.starlark.net/starlark"
+	"go.starlark.net/starlarkstruct"
+)
+
+var utilsModule = &starlarkstruct.Module{
+	Name: "utils",
+	Members: starlark.StringDict{
+		"ver_cmp": starlark.NewBuiltin("utils.ver_cmp", utilsVerCmp),
+	},
+}
+
+func utilsVerCmp(thread *starlark.Thread, b *starlark.Builtin, args starlark.Tuple, kwargs []starlark.Tuple) (starlark.Value, error) {
+	var v1, v2 string
+	err := starlark.UnpackArgs("utils.ver_cmp", args, kwargs, "v1", &v1, "v2", &v2)
+	if err != nil {
+		return nil, err
+	}
+	return starlark.MakeInt(vercmp.Compare(v1, v2)), nil
+}