feat: add command to generate C# code (#22)

* add generate gogs csharp code command

* add  the flag for the csharp that only generate part of the code

* add  lib for unity protobuf

* fix on listener name is not generated

* fix csharp template generate error

* fix lint error

Author: szpnygo

bin/csharp/Google.Protobuf.dll

@@ -1,6 +1,6 @@
 syntax = "proto3";
 
-package proto;
+package gogs;
 option go_package = "/proto";
 
 

bin/csharp/System.Buffers.dll

@@ -0,0 +1,35 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/metagogs/gogs/tools/gogs/csharp"
+	"github.com/pterm/pterm"
+	"github.com/spf13/cobra"
+)
+
+func init() {
+	RootCmd.AddCommand(csharpCmd)
+	csharpCmd.Flags().StringVarP(&protoFile, "file", "f", "", "proto file")
+	csharpCmd.Flags().BoolVarP(&gogsFiles, "gogs", "g", false, "should generate gogs framework code")
+}
+
+var csharpCmd = &cobra.Command{
+	Use:   "csharp",
+	Short: "generate csharp code",
+	Long:  ``,
+	Run: func(cmd *cobra.Command, args []string) {
+		if len(protoFile) == 0 {
+			pterm.Error.Printfln("proto file is empty")
+			os.Exit(1)
+		}
+
+		fmt.Println(gogsFiles)
+		gen, err := csharp.NewCSharpGen(protoFile, gogsFiles)
+		if err != nil {
+			fmt.Println(err)
+		}
+		_ = gen.Generate()
+	},
+}

bin/csharp/System.Memory.dll

@@ -0,0 +1,6 @@
+package cmd
+
+var (
+	protoFile string
+	gogsFiles bool
+)

bin/csharp/System.Runtime.CompilerServices.Unsafe.dll

@@ -10,13 +10,9 @@ import (
 	"github.com/spf13/cobra"
 )
 
-var (
-	protoFile string
-)
-
 func init() {
 	RootCmd.AddCommand(protoCmd)
-	protoCmd.Flags().StringVarP(&protoFile, "file", "f", "", "proto文件")
+	protoCmd.Flags().StringVarP(&protoFile, "file", "f", "", "proto file")
 }
 
 var protoCmd = &cobra.Command{

proto/common.proto

@@ -0,0 +1,196 @@
+package csharp
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/emicklei/proto"
+	"github.com/metagogs/gogs/packet"
+	"github.com/metagogs/gogs/tools/gogs/csharp/gentemplate"
+	"github.com/metagogs/gogs/tools/gogs/protoparse"
+	"github.com/metagogs/gogs/utils/execx"
+	"github.com/metagogs/gogs/utils/templatex"
+	"github.com/pterm/pterm"
+)
+
+type Components struct {
+	Components []*Component
+}
+
+type Component struct {
+	Name        string
+	Index       int
+	BasePackage string
+	Fields      []*Field
+}
+
+type Field struct {
+	ComponentName  string
+	ComponentIndex int
+	BasePackage    string
+	Package        string
+	Name           string
+	Index          int
+	ServerMessage  bool
+	Action10       string //action 10进制
+	Action16       string //action 16进制
+}
+
+type CSharpGen struct {
+	proto       protoparse.Proto
+	protoFile   string
+	componets   *Components
+	messages    map[string]protoparse.Message
+	basePackage string
+	Home        string
+	logicPath   []string
+	debugNoPb   bool
+	onlyCode    bool //just generate code by proto exinclude gogs
+}
+
+func NewCSharpGen(proto string, onlyCode bool) (*CSharpGen, error) {
+	protoPrase, err := protoparse.NewProtoParser().Parse(proto)
+	if err != nil {
+		return nil, err
+	}
+	return &CSharpGen{
+		protoFile: proto,
+		proto:     protoPrase,
+		messages:  make(map[string]protoparse.Message),
+		onlyCode:  onlyCode,
+	}, nil
+}
+
+func (g *CSharpGen) Generate() error {
+	g.init()
+
+	if g.onlyCode {
+		if err := g.gogs(); err != nil {
+			return err
+		}
+	}
+
+	if err := g.register(); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (g *CSharpGen) init() {
+	g.componets = new(Components)
+	for _, m := range g.proto.Message {
+		g.messages[m.Name] = m
+	}
+	//find components
+	for _, m := range g.proto.Message {
+		if m.Comment == nil {
+			continue
+		}
+		if protoparse.CommentsContains(m.Comment.Lines, "@gogs:Components") {
+			for _, e := range m.Elements {
+				if v, ok := e.(*proto.NormalField); ok {
+					com := g.parseComponent(v)
+					g.componets.Components = append(g.componets.Components, com)
+				}
+			}
+		}
+	}
+
+	for _, c := range g.componets.Components {
+		pterm.Success.Printf("Component: %s [%d]\n", c.Name, c.Index)
+		for _, f := range c.Fields {
+			pterm.Success.Printf("      Field: %s [%d][%v]\n", f.Name, f.Index, f.ServerMessage)
+		}
+	}
+}
+
+func (g *CSharpGen) parseComponent(component *proto.NormalField) *Component {
+	newCompoent := &Component{}
+	newCompoent.Name = component.Name
+	newCompoent.Index = component.Sequence
+	newCompoent.BasePackage = g.basePackage
+
+	for _, e := range g.messages[component.Name].Elements {
+		if v, ok := e.(*proto.NormalField); ok {
+			data := &Field{}
+			data.ComponentName = component.Name
+			data.ComponentIndex = component.Sequence
+			data.Name = v.Name
+			data.Index = v.Sequence
+			data.Package = g.proto.PbPackage
+			data.BasePackage = g.basePackage
+			//create action
+			actionValue := packet.CreateAction(packet.ServicePacket, uint8(data.ComponentIndex), uint16(data.Index))
+			data.Action10 = fmt.Sprint(actionValue)
+			data.Action16 = fmt.Sprintf("0x%x", actionValue)
+			if g.messages[v.Name].Comment != nil {
+				if protoparse.CommentsContains(g.messages[v.Name].Comment.Lines, "@gogs:ServerMessage") {
+					data.ServerMessage = true
+				}
+			}
+
+			newCompoent.Fields = append(newCompoent.Fields, data)
+		}
+	}
+
+	return newCompoent
+
+}
+
+func (g *CSharpGen) gogs() error {
+	if err := templatex.With("gogs").Parse(gentemplate.CodecTpl).SaveTo(nil, g.Home+"Gogs/Codec.cs", true); err != nil {
+		pterm.Error.Printfln("generate file error Gogs/Codec.cs:" + err.Error())
+		return err
+	}
+	if err := templatex.With("gogs").Parse(gentemplate.CommonTpl).SaveTo(nil, g.Home+"Gogs/Common.cs", true); err != nil {
+		pterm.Error.Printfln("generate file error Gogs/Common.cs:" + err.Error())
+		return err
+	}
+	if err := templatex.With("gogs").Parse(gentemplate.EventsManagerTpl).SaveTo(nil, g.Home+"Gogs/EventsManager.cs", true); err != nil {
+		pterm.Error.Printfln("generate file error Gogs/EventsManager.cs:" + err.Error())
+		return err
+	}
+	if err := templatex.With("gogs").Parse(gentemplate.ICodecTpl).SaveTo(nil, g.Home+"Gogs/ICodec.cs", true); err != nil {
+		pterm.Error.Printfln("generate file error Gogs/ICodec.cs:" + err.Error())
+		return err
+	}
+	if err := templatex.With("gogs").Parse(gentemplate.MessagesTpl).SaveTo(nil, g.Home+"Gogs/Messages.cs", true); err != nil {
+		pterm.Error.Printfln("generate file error Gogs/Messages.cs:" + err.Error())
+		return err
+	}
+	if err := templatex.With("gogs").Parse(gentemplate.PacketTpl).SaveTo(nil, g.Home+"Gogs/Packet.cs", true); err != nil {
+		pterm.Error.Printfln("generate file error Gogs/Packet.cs:" + err.Error())
+		return err
+	}
+
+	return nil
+}
+
+func (g *CSharpGen) register() error {
+	out := "Model"
+	if len(g.Home) > 0 {
+		out = g.Home + "Model"
+	}
+	if !g.debugNoPb {
+		_ = os.MkdirAll(out, os.ModePerm)
+		protocCmd := fmt.Sprintf("protoc --csharp_out=%s %s", out, g.protoFile)
+		if _, err := execx.Exec(protocCmd); err != nil {
+			fmt.Println(err.Error())
+			pterm.Error.Println("run protoc error " + err.Error())
+			return err
+		}
+
+	}
+
+	data := map[string]interface{}{}
+	data["Package"] = g.proto.PbPackage
+	data["Components"] = g.componets.Components
+
+	if err := templatex.With("gogs").Parse(gentemplate.RegisterTpl).SaveTo(data, g.Home+"Model/Register.cs", true); err != nil {
+		pterm.Error.Printfln("generate file error Model/Register.cs:" + err.Error())
+		return err
+	}
+
+	return nil
+}

tools/gogs/cmd/csharp.go

@@ -0,0 +1,54 @@
+package csharp
+
+import (
+	"os"
+	"testing"
+
+	"github.com/metagogs/gogs/utils/filex"
+)
+
+func TestNewGen(t *testing.T) {
+	type args struct {
+		proto    string
+		onlyCode bool
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantErr bool
+	}{
+		{
+			name: "new gen",
+			args: args{
+				proto:    "testdata/data.proto",
+				onlyCode: false,
+			},
+			wantErr: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			g, err := NewCSharpGen(tt.args.proto, tt.args.onlyCode)
+			g.Home = "test/"
+			if (err != nil) != tt.wantErr {
+				t.Errorf("NewGen() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			_ = g.Generate()
+			if (err != nil) != tt.wantErr {
+				t.Errorf("NewGen() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+
+			var haveErr bool
+			if ok := filex.IsFileEqual("testdata/Model/Register.cs", "test/Model/Register.cs"); !ok {
+				t.Errorf("Init.Generate() error = %s is not equal to %s", "test/Model/Register.cs", "testdata/Model/Register.cs")
+				haveErr = true
+			}
+
+			if !haveErr {
+				_ = os.RemoveAll("test")
+			}
+		})
+	}
+}