57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
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// +build codegen
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// Command gen-endpoints parses a JSON description of the AWS endpoint
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// discovery logic and generates a Go file which returns an endpoint.
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//
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// aws-gen-goendpoints apis/_endpoints.json aws/endpoints_map.go
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package main
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import (
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"flag"
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"fmt"
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"os"
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"github.com/aws/aws-sdk-go/aws/endpoints"
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)
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// Generates the endpoints from json description
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//
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// Args:
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// -model The definition file to use
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// -out The output file to generate
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func main() {
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var modelName, outName string
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flag.StringVar(&modelName, "model", "", "Endpoints definition model")
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flag.StringVar(&outName, "out", "", "File to write generated endpoints to.")
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flag.Parse()
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if len(modelName) == 0 || len(outName) == 0 {
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exitErrorf("model and out both required.")
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}
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modelFile, err := os.Open(modelName)
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if err != nil {
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exitErrorf("failed to open model definition, %v.", err)
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}
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defer modelFile.Close()
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outFile, err := os.Create(outName)
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if err != nil {
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exitErrorf("failed to open out file, %v.", err)
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}
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defer func() {
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if err := outFile.Close(); err != nil {
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exitErrorf("failed to successfully write %q file, %v", outName, err)
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}
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}()
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if err := endpoints.CodeGenModel(modelFile, outFile); err != nil {
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exitErrorf("failed to codegen model, %v", err)
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}
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}
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func exitErrorf(msg string, args ...interface{}) {
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fmt.Fprintf(os.Stderr, msg+"\n", args...)
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os.Exit(1)
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}
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