74 lines
1.7 KiB
Go
74 lines
1.7 KiB
Go
package seeds
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import (
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"encoding/hex"
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"encoding/json"
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"fmt"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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"github.com/tendermint/light-client/certifiers"
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"github.com/tendermint/basecoin/client/commands"
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)
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const (
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heightFlag = "height"
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hashFlag = "hash"
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fileFlag = "file"
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)
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var showCmd = &cobra.Command{
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Use: "show",
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Short: "Show the details of one selected seed",
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Long: `Shows the most recent downloaded key by default.
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If desired, you can select by height, validator hash, or a file.
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`,
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RunE: commands.RequireInit(showSeed),
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SilenceUsage: true,
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}
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func init() {
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showCmd.Flags().Int(heightFlag, 0, "Show the seed with closest height to this")
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showCmd.Flags().String(hashFlag, "", "Show the seed matching the validator hash")
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showCmd.Flags().String(fileFlag, "", "Show the seed stored in the given file")
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RootCmd.AddCommand(showCmd)
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}
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func loadSeed(p certifiers.Provider, h int, hash, file string) (seed certifiers.Seed, err error) {
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// load the seed from the proper place
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if h != 0 {
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seed, err = p.GetByHeight(h)
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} else if hash != "" {
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var vhash []byte
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vhash, err = hex.DecodeString(hash)
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if err == nil {
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seed, err = p.GetByHash(vhash)
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}
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} else if file != "" {
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seed, err = certifiers.LoadSeed(file)
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} else {
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// default is latest seed
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seed, err = certifiers.LatestSeed(p)
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}
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return
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}
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func showSeed(cmd *cobra.Command, args []string) error {
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trust, _ := commands.GetProviders()
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h := viper.GetInt(heightFlag)
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hash := viper.GetString(hashFlag)
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file := viper.GetString(fileFlag)
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seed, err := loadSeed(trust, h, hash, file)
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if err != nil {
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return err
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}
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// now render it!
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data, err := json.MarshalIndent(seed, "", " ")
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fmt.Println(string(data))
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return err
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}
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