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/rpc/generator/genpb.go

@@ -0,0 +1,31 @@
+package generator
+
+import (
+	"bytes"
+	"path/filepath"
+	"strings"
+
+	"github.com/tal-tech/go-zero/tools/goctl/rpc/execx"
+	"github.com/tal-tech/go-zero/tools/goctl/rpc/parser"
+)
+
+func (g *defaultGenerator) GenPb(ctx DirContext, protoImportPath []string, proto parser.Proto) error {
+	dir := ctx.GetPb()
+	cw := new(bytes.Buffer)
+	base := filepath.Dir(proto.Src)
+	cw.WriteString("protoc ")
+	for _, ip := range protoImportPath {
+		cw.WriteString(" -I=" + ip)
+	}
+	cw.WriteString(" -I=" + base)
+	cw.WriteString(" " + proto.Name)
+	if strings.Contains(proto.GoPackage, "/") {
+		cw.WriteString(" --go_out=plugins=grpc:" + ctx.GetInternal().Filename)
+	} else {
+		cw.WriteString(" --go_out=plugins=grpc:" + dir.Filename)
+	}
+	command := cw.String()
+	g.log.Debug(command)
+	_, err := execx.Run(command, "")
+	return err
+}