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gen.go
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gen.go
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// Copyright 2023 The Ryan SU Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package proto2api
import (
"fmt"
set "github.com/duke-git/lancet/v2/datastructure/set"
"github.com/duke-git/lancet/v2/fileutil"
"github.com/gookit/color"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"github.com/suyuan32/goctls/rpc/parser"
"github.com/suyuan32/goctls/util/format"
"github.com/suyuan32/goctls/util/protox"
"path/filepath"
"strings"
)
var (
VarStringProtoPath string
VarStringModelName string
VarStringApiPath string
VarBoolMultiple bool
VarStringGroupName string
VarStringJsonStyle string
)
type GenContext struct {
ProtoPath string
ModelName string
ApiPath string
Multiple bool
GroupName string
JsonStyle string
}
func Gen(_ *cobra.Command, _ []string) error {
if VarStringGroupName == "" {
VarStringGroupName = strings.ToLower(VarStringModelName)
}
return DoGen(&GenContext{
ProtoPath: VarStringProtoPath,
ModelName: VarStringModelName,
ApiPath: VarStringApiPath,
Multiple: VarBoolMultiple,
GroupName: VarStringGroupName,
JsonStyle: VarStringJsonStyle,
})
}
func DoGen(g *GenContext) error {
color.Green.Println("Generating...")
protoFilePath, err := filepath.Abs(g.ProtoPath)
if err != nil {
return errors.Wrap(err, "failed to load proto file")
}
var apiFilePath, apiData string
if g.ApiPath != "" {
apiFilePath, err = filepath.Abs(g.ApiPath)
if err != nil {
return errors.Wrap(err, "failed to load api file")
}
apiData, err = fileutil.ReadFileToString(apiFilePath)
if err != nil {
return errors.Wrap(err, "failed to load api data")
}
}
protoParser := parser.NewDefaultProtoParser()
protoData, err := protoParser.Parse(protoFilePath, g.Multiple)
if err != nil {
return errors.Wrap(err, "failed to parse proto data")
}
var typeData, routeData strings.Builder
typeNameSet := set.New[string]()
// gen route
for _, v := range protoData.Service {
for _, r := range v.RPC {
if strings.Contains(r.Comment.Message(), g.GroupName) {
if SkipRpcName(r.Name, g.ModelName) {
continue
}
urlName, err := format.FileNamingFormat("go_zero", r.Name)
if err != nil {
return err
}
if strings.Contains(apiData, r.Name) {
continue
}
typeNameSet.Add(r.RequestType, r.ReturnsType)
routeData.WriteString(fmt.Sprintf("\n // %s\n @handler %s\n post /%s/%s (%s) returns (%s)\n",
r.Name, r.Name, strings.ToLower(g.ModelName), urlName, r.RequestType, r.ReturnsType))
}
}
}
if routeData.Len() < 2 {
return errors.New("rpc not found, please check your group name is correct")
}
// gen type
protox.ProtoField = &protox.ProtoFieldData{}
for _, v := range protoData.Message {
if typeNameSet.Contain(v.Name) {
typeData.WriteString(fmt.Sprintf("\n // %s \n %s {\n", v.Name, v.Name))
for _, t := range v.Elements {
t.Accept(protox.MessageVisitor{})
if SkipBaseMessage(protox.ProtoField.Name) || strings.Contains(apiData, protox.ProtoField.Name) {
continue
}
optionalStr, repeatStr, pointerStr := "", "", ""
if protox.ProtoField.Optional {
optionalStr = ",optional"
pointerStr = "*"
}
if protox.ProtoField.Repeated {
repeatStr = "[]"
}
jsonFieldStr, err := format.FileNamingFormat(g.JsonStyle, protox.ProtoField.Name)
if err != nil {
return errors.Wrap(err, "failed to convert json field style")
}
fieldStr, err := format.FileNamingFormat("GoZero", protox.ProtoField.Name)
if err != nil {
return errors.Wrap(err, "failed to convert json field style")
}
typeData.WriteString(fmt.Sprintf(" // %s\n %s %s%s%s `json:\"%s%s\"`\n\n",
fieldStr,
fieldStr,
pointerStr,
repeatStr,
protox.ProtoField.Type,
jsonFieldStr,
optionalStr,
))
}
typeData.WriteString(" }\n")
}
}
if g.ApiPath == "" {
fmt.Printf("\n\nTYPE DATA \n\n%s\n\n", typeData.String())
fmt.Printf("ROUTE DATA \n\n%s\n\n", routeData.String())
} else {
typeIndex := FindTypeContentIndex(apiData)
if typeIndex != -1 {
apiData = apiData[:typeIndex+1] + typeData.String() + apiData[typeIndex+1:]
}
serviceIndex := FindServiceContentIndex(apiData)
if serviceIndex != -1 {
apiData = apiData[:serviceIndex+1] + routeData.String() + apiData[serviceIndex+1:]
}
err = fileutil.WriteStringToFile(apiFilePath, apiData, false)
if err != nil {
return errors.Wrap(err, "failed to write data to api file")
}
}
color.Green.Println("Generate successfully")
return err
}