mirror of
https://gitea.com/Lydanne/buildx.git
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83 lines
2.4 KiB
Go
83 lines
2.4 KiB
Go
// Copyright 2017 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package openapiextension_v1
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import (
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"fmt"
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"io/ioutil"
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"os"
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"github.com/golang/protobuf/proto"
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"github.com/golang/protobuf/ptypes"
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)
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type documentHandler func(version string, extensionName string, document string)
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type extensionHandler func(name string, yamlInput string) (bool, proto.Message, error)
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func forInputYamlFromOpenapic(handler documentHandler) {
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data, err := ioutil.ReadAll(os.Stdin)
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if err != nil {
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fmt.Println("File error:", err.Error())
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os.Exit(1)
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}
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if len(data) == 0 {
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fmt.Println("No input data.")
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os.Exit(1)
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}
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request := &ExtensionHandlerRequest{}
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err = proto.Unmarshal(data, request)
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if err != nil {
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fmt.Println("Input error:", err.Error())
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os.Exit(1)
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}
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handler(request.Wrapper.Version, request.Wrapper.ExtensionName, request.Wrapper.Yaml)
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}
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// ProcessExtension calles the handler for a specified extension.
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func ProcessExtension(handleExtension extensionHandler) {
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response := &ExtensionHandlerResponse{}
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forInputYamlFromOpenapic(
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func(version string, extensionName string, yamlInput string) {
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var newObject proto.Message
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var err error
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handled, newObject, err := handleExtension(extensionName, yamlInput)
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if !handled {
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responseBytes, _ := proto.Marshal(response)
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os.Stdout.Write(responseBytes)
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os.Exit(0)
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}
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// If we reach here, then the extension is handled
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response.Handled = true
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if err != nil {
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response.Error = append(response.Error, err.Error())
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responseBytes, _ := proto.Marshal(response)
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os.Stdout.Write(responseBytes)
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os.Exit(0)
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}
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response.Value, err = ptypes.MarshalAny(newObject)
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if err != nil {
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response.Error = append(response.Error, err.Error())
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responseBytes, _ := proto.Marshal(response)
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os.Stdout.Write(responseBytes)
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os.Exit(0)
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}
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})
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responseBytes, _ := proto.Marshal(response)
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os.Stdout.Write(responseBytes)
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}
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