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