107 lines
1.9 KiB
Go
107 lines
1.9 KiB
Go
package uci
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import (
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"encoding/json"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"forge.cadoles.com/Cadoles/emissary/internal/command/common"
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"forge.cadoles.com/Cadoles/emissary/internal/openwrt/uci"
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"github.com/pkg/errors"
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"github.com/urfave/cli/v2"
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)
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const (
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FormatJSON = "json"
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FormatUCI = "uci"
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)
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func TransformCommand() *cli.Command {
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flags := common.Flags()
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flags = append(flags,
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&cli.StringFlag{
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Name: "format",
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Aliases: []string{"f"},
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Usage: "Define the source format ('uci' or 'json')",
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Value: "uci",
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},
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&cli.StringFlag{
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Name: "input",
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Usage: "File to use as input (or '-' for STDIN)",
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Aliases: []string{"i"},
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TakesFile: true,
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Value: "-",
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},
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)
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return &cli.Command{
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Name: "transform",
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Usage: "Transform UCI configuration from/to JSON",
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Flags: flags,
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Action: func(ctx *cli.Context) error {
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input := ctx.String("input")
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format := ctx.String("format")
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var reader io.Reader
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switch input {
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case "-":
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reader = os.Stdin
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default:
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file, err := os.Open(input)
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if err != nil {
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return errors.WithStack(err)
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}
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defer func() {
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if err := file.Close(); err != nil {
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panic(errors.WithStack(err))
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}
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}()
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reader = file
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}
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var conf *uci.UCI
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switch format {
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case FormatJSON:
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decoder := json.NewDecoder(reader)
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conf = uci.NewUCI()
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if err := decoder.Decode(conf); err != nil {
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return errors.WithStack(err)
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}
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fmt.Print(conf.Export())
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case FormatUCI:
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data, err := ioutil.ReadAll(reader)
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if err != nil {
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return errors.WithStack(err)
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}
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conf, err = uci.Parse(data)
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if err != nil {
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return errors.WithStack(err)
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}
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jsonData, err := json.MarshalIndent(conf, "", " ")
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if err != nil {
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return errors.WithStack(err)
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}
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fmt.Print(string(jsonData))
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default:
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return errors.Errorf("unexpected format '%s'", format)
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}
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return nil
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},
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}
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}
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