func Generate(req *plugin.CodeGeneratorRequest) *plugin.CodeGeneratorResponse {
// Begin by allocating a generator. The request and response structures are stored there
// so we can do error handling easily - the response structure contains the field to
// report failure.
g := generator.New()
g.Request = req
g.CommandLineParameters(g.Request.GetParameter())
// Create a wrapped version of the Descriptors and EnumDescriptors that
// point to the file that defines them.
g.WrapTypes()
g.SetPackageNames()
g.BuildTypeNameMap()
g.GenerateAllFiles()
if err := goformat(g.Response); err != nil {
g.Error(err)
}
testReq := proto.Clone(req).(*plugin.CodeGeneratorRequest)
testResp := GeneratePlugin(testReq, testgen.NewPlugin(), "pb_test.go")
for i := 0; i < len(testResp.File); i++ {
if strings.Contains(*testResp.File[i].Content, `//These tests are generated by github.com/maditya/protobuf/plugin/testgen`) {
g.Response.File = append(g.Response.File, testResp.File[i])
}
}
return g.Response
}
func Write(resp *plugin.CodeGeneratorResponse) {
g := generator.New()
// Send back the results.
data, err := proto.Marshal(resp)
if err != nil {
g.Error(err, "failed to marshal output proto")
}
_, err = os.Stdout.Write(data)
if err != nil {
g.Error(err, "failed to write output proto")
}
}
func Read() *plugin.CodeGeneratorRequest {
g := generator.New()
data, err := ioutil.ReadAll(os.Stdin)
if err != nil {
g.Error(err, "reading input")
}
if err := proto.Unmarshal(data, g.Request); err != nil {
g.Error(err, "parsing input proto")
}
if len(g.Request.FileToGenerate) == 0 {
g.Fail("no files to generate")
}
return g.Request
}
// filenameSuffix replaces the .pb.go at the end of each filename.
func GeneratePlugin(req *plugin.CodeGeneratorRequest, p generator.Plugin, filenameSuffix string) *plugin.CodeGeneratorResponse {
g := generator.New()
g.Request = req
if len(g.Request.FileToGenerate) == 0 {
g.Fail("no files to generate")
}
g.CommandLineParameters(g.Request.GetParameter())
g.WrapTypes()
g.SetPackageNames()
g.BuildTypeNameMap()
g.GeneratePlugin(p)
for i := 0; i < len(g.Response.File); i++ {
g.Response.File[i].Name = proto.String(
strings.Replace(*g.Response.File[i].Name, ".pb.go", filenameSuffix, -1),
)
}
if err := goformat(g.Response); err != nil {
g.Error(err)
}
return g.Response
}