reactor rpc (#179)

* reactor rpc generation

* update flag

* update command

* update command

* update unit test

* delete test file

* optimize code

* update doc

* update gen pb

* rename target dir

* update mysql data type convert rule

* add done flag

* optimize req/reply parameter

* optimize req/reply parameter

* remove waste code

* remove duplicate parameter

* format code

* format code

* optimize naming

* reactor rpcv2 to rpc

* remove new line

* format code

* rename underline to snake

* reactor getParentPackage

* remove debug log

* reactor background

tools/goctl/util/ctx/modcheck.go

@@ -0,0 +1,32 @@
+package ctx
+
+import (
+	"errors"
+	"os"
+
+	"github.com/tal-tech/go-zero/core/jsonx"
+	"github.com/tal-tech/go-zero/tools/goctl/rpc/execx"
+)
+
+// IsGoMod is used to determine whether workDir is a go module project through command `go list -json -m`
+func IsGoMod(workDir string) (bool, error) {
+	if len(workDir) == 0 {
+		return false, errors.New("the work directory is not found")
+	}
+	if _, err := os.Stat(workDir); err != nil {
+		return false, err
+	}
+
+	data, err := execx.Run("go list -json -m", workDir)
+	if err != nil {
+		return false, nil
+	}
+
+	var m Module
+	err = jsonx.Unmarshal([]byte(data), &m)
+	if err != nil {
+		return false, err
+	}
+
+	return len(m.GoMod) > 0, nil
+}