patch model&rpc (#207)

* change column to read from information_schema

* reactor generate mode from datasource

* reactor generate mode from datasource

* add primary key check logic

* resolve rebase conflicts

* add naming style

* add filename test case

* resolve rebase conflicts

* reactor test

* add test case

* change shell script to makefile

* update rpc new

* update gen_test.go

* format code

* format code

* update test

* generates alias

tools/goctl/rpc/generator/filename.go

@@ -6,6 +6,13 @@ import (
 	"github.com/tal-tech/go-zero/tools/goctl/util/stringx"
 )
 
-func formatFilename(filename string) string {
-	return strings.ToLower(stringx.From(filename).ToCamel())
+func formatFilename(filename string, style NamingStyle) string {
+	switch style {
+	case namingCamel:
+		return stringx.From(filename).ToCamel()
+	case namingSnake:
+		return stringx.From(filename).ToSnake()
+	default:
+		return strings.ToLower(stringx.From(filename).ToCamel())
+	}
 }