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// Extensions for Protocol Buffers to create more go like structures.
//
// Copyright (c) 2015, Vastech SA (PTY) LTD. All rights reserved.
// http://github.com/gogo/protobuf/gogoproto
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package command
import (
"io/ioutil"
"os"
"github.com/gogo/protobuf/proto"
"github.com/gogo/protobuf/protoc-gen-gogo/generator"
plugin "github.com/gogo/protobuf/protoc-gen-gogo/plugin"
_ "github.com/gogo/protobuf/plugin/grpc"
_ "github.com/gogo/protobuf/plugin/defaultcheck"
_ "github.com/gogo/protobuf/plugin/description"
_ "github.com/gogo/protobuf/plugin/embedcheck"
_ "github.com/gogo/protobuf/plugin/enumstringer"
_ "github.com/gogo/protobuf/plugin/equal"
_ "github.com/gogo/protobuf/plugin/face"
_ "github.com/gogo/protobuf/plugin/gostring"
_ "github.com/gogo/protobuf/plugin/marshalto"
_ "github.com/gogo/protobuf/plugin/oneofcheck"
_ "github.com/gogo/protobuf/plugin/populate"
_ "github.com/gogo/protobuf/plugin/size"
_ "github.com/gogo/protobuf/plugin/stringer"
_ "github.com/gogo/protobuf/plugin/union"
_ "github.com/gogo/protobuf/plugin/unmarshal"
"github.com/gogo/protobuf/plugin/testgen"
"go/format"
"strings"
)
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
}
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()
gtest := generator.New()
data, err := proto.Marshal(req)
if err != nil {
g.Error(err, "failed to marshal modified proto")
}
if err := proto.Unmarshal(data, gtest.Request); err != nil {
g.Error(err, "parsing modified proto")
}
if len(gtest.Request.FileToGenerate) == 0 {
gtest.Fail("no files to generate")
}
gtest.CommandLineParameters(gtest.Request.GetParameter())
// Create a wrapped version of the Descriptors and EnumDescriptors that
// point to the file that defines them.
gtest.WrapTypes()
gtest.SetPackageNames()
gtest.BuildTypeNameMap()
gtest.GeneratePlugin(testgen.NewPlugin())
for i := 0; i < len(gtest.Response.File); i++ {
if strings.Contains(*gtest.Response.File[i].Content, `//These tests are generated by github.com/gogo/protobuf/plugin/testgen`) {
gtest.Response.File[i].Name = proto.String(strings.Replace(*gtest.Response.File[i].Name, ".pb.go", "pb_test.go", -1))
g.Response.File = append(g.Response.File, gtest.Response.File[i])
}
}
for i := 0; i < len(g.Response.File); i++ {
formatted, err := format.Source([]byte(g.Response.File[i].GetContent()))
if err != nil {
g.Error(err, "go format error")
}
fmts := string(formatted)
g.Response.File[i].Content = &fmts
}
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")
}
}
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