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package cmd
import (
"fmt"
"strconv"
"github.com/spf13/cobra"
)
// get can handle three argument styles: <id>, <subj ver> or <subj>
var getCmd = &cobra.Command{
Use: "get <id> | (<subject> [<version>])",
Short: "retrieves a schema specified by id or subject",
Long: `The schema can be requested by id or subject.
When a subject is given, optionally one can provide a specific version. If no
version is specified, the latest version is returned.
`,
RunE: func(cmd *cobra.Command, args []string) error {
if len(args) < 1 || len(args) > 2 {
return fmt.Errorf("expected 1 to 2 arguments")
}
id, idParseErr := strconv.Atoi(args[0])
var err error
switch {
case len(args) == 1 && idParseErr == nil:
err = getById(id)
case len(args) == 1 && idParseErr != nil:
err = getLatestBySubject(args[0])
case len(args) == 2:
ver, err := strconv.Atoi(args[1])
if err != nil {
return fmt.Errorf("2nd argument must be a version number")
}
err = getBySubjectVersion(args[0], ver)
default:
return fmt.Errorf("?")
}
return err
},
}
func init() {
RootCmd.AddCommand(getCmd)
}
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