mirror of
https://github.com/LBRYFoundation/lbcd.git
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6e36118193
- fix default app dir name - enable debug level for cli - block sub command to output hash, height, or both
122 lines
2.6 KiB
Go
122 lines
2.6 KiB
Go
package cmd
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import (
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"fmt"
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"github.com/cockroachdb/errors"
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"github.com/spf13/cobra"
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)
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func init() {
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rootCmd.AddCommand(NewBlocCommands())
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}
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func NewBlocCommands() *cobra.Command {
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cmd := &cobra.Command{
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Use: "block",
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Short: "Block related commands",
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}
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cmd.AddCommand(NewBlockBestCommand())
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cmd.AddCommand(NewBlockListCommand())
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return cmd
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}
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func NewBlockBestCommand() *cobra.Command {
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var showHash bool
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var showHeight bool
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cmd := &cobra.Command{
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Use: "best",
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Short: "Show the block hash and height of the best block",
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RunE: func(cmd *cobra.Command, args []string) error {
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db, err := loadBlocksDB()
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if err != nil {
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return errors.Wrapf(err, "load blocks database")
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}
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defer db.Close()
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chain, err := loadChain(db)
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if err != nil {
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return errors.Wrapf(err, "load chain")
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}
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state := chain.BestSnapshot()
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switch {
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case showHeight && showHash:
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fmt.Printf("%s:%d\n", state.Hash, state.Height)
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case !showHeight && showHash:
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fmt.Printf("%s\n", state.Hash)
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case showHeight && !showHash:
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fmt.Printf("%d\n", state.Height)
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}
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return nil
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},
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}
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cmd.Flags().BoolVar(&showHeight, "showheight", true, "Display block height")
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cmd.Flags().BoolVar(&showHash, "showhash", true, "Display block hash")
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return cmd
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}
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func NewBlockListCommand() *cobra.Command {
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var fromHeight int32
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var toHeight int32
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var showHash bool
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var showHeight bool
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cmd := &cobra.Command{
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Use: "list",
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Short: "List block hash and height between blocks <from_height> <to_height>",
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Args: cobra.NoArgs,
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RunE: func(cmd *cobra.Command, args []string) error {
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db, err := loadBlocksDB()
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if err != nil {
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return errors.Wrapf(err, "load blocks database")
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}
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defer db.Close()
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chain, err := loadChain(db)
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if err != nil {
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return errors.Wrapf(err, "load chain")
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}
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if toHeight > chain.BestSnapshot().Height {
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toHeight = chain.BestSnapshot().Height
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}
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for ht := fromHeight; ht <= toHeight; ht++ {
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hash, err := chain.BlockHashByHeight(ht)
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if err != nil {
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return errors.Wrapf(err, "load hash for %d", ht)
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}
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switch {
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case showHeight && showHash:
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fmt.Printf("%s:%d\n", hash, ht)
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case !showHeight && showHash:
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fmt.Printf("%s\n", hash)
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case showHeight && !showHash:
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fmt.Printf("%d\n", ht)
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}
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}
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return nil
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},
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}
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cmd.Flags().Int32Var(&fromHeight, "from", 0, "From height (inclusive)")
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cmd.Flags().Int32Var(&toHeight, "to", 0, "To height (inclusive)")
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cmd.Flags().BoolVar(&showHeight, "showheight", true, "Display block height")
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cmd.Flags().BoolVar(&showHash, "showhash", true, "Display block hash")
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cmd.Flags().SortFlags = false
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return cmd
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}
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