Joseph Doherty
64 lines
1.5 KiB
Go
64 lines
1.5 KiB
Go
package main
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import (
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"encoding/json"
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"flag"
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"fmt"
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"os"
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"gitea.dohertylan.com/dohertj2/mxaccessgw/clients/go/mxgateway"
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)
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type versionOutput struct {
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ClientVersion string `json:"clientVersion"`
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GatewayProtocolVersion uint32 `json:"gatewayProtocolVersion"`
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WorkerProtocolVersion uint32 `json:"workerProtocolVersion"`
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}
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func main() {
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if err := run(os.Args[1:]); err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(2)
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}
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}
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func run(args []string) error {
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if len(args) == 0 {
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return fmt.Errorf("usage: mxgw-go version [-json]")
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}
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switch args[0] {
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case "version":
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return runVersion(args[1:])
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default:
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return fmt.Errorf("unknown command %q", args[0])
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}
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}
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func runVersion(args []string) error {
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flags := flag.NewFlagSet("version", flag.ContinueOnError)
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flags.SetOutput(os.Stderr)
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jsonOutput := flags.Bool("json", false, "write JSON output")
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if err := flags.Parse(args); err != nil {
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return err
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}
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output := versionOutput{
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ClientVersion: mxgateway.ClientVersion,
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GatewayProtocolVersion: mxgateway.GatewayProtocolVersion,
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WorkerProtocolVersion: mxgateway.WorkerProtocolVersion,
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}
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if *jsonOutput {
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encoder := json.NewEncoder(os.Stdout)
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encoder.SetIndent("", " ")
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return encoder.Encode(output)
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}
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fmt.Fprintf(os.Stdout, "mxgw-go %s\n", output.ClientVersion)
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fmt.Fprintf(os.Stdout, "gateway protocol %d\n", output.GatewayProtocolVersion)
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fmt.Fprintf(os.Stdout, "worker protocol %d\n", output.WorkerProtocolVersion)
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return nil
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}
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