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cmd/geth: add db dumptrie command (#22563)

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Adds the command "geth db dumptrie <root> <seek> <max>", to better help investigate the trie data
This commit is contained in:
Martin Holst Swende 2021-03-30 13:57:21 +02:00 committed by GitHub
parent 43a3768066
commit 59ac3c9fd3
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 69 additions and 0 deletions
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69
cmd/geth/dbcmd.go
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@ -20,6 +20,7 @@ import (
"fmt"
"os"
"path/filepath"
"strconv"
"time"
"github.com/ethereum/go-ethereum/cmd/utils"
@ -29,6 +30,7 @@ import (
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/trie"
"gopkg.in/urfave/cli.v1"
)
@ -57,6 +59,7 @@ Remove blockchain and state databases`,
dbGetCmd,
dbDeleteCmd,
dbPutCmd,
dbGetSlotsCmd,
},
}
dbInspectCmd = cli.Command{
@ -158,6 +161,22 @@ WARNING: This is a low-level operation which may cause database corruption!`,
Description: `This command sets a given database key to the given value.
WARNING: This is a low-level operation which may cause database corruption!`,
}
dbGetSlotsCmd = cli.Command{
Action: utils.MigrateFlags(dbDumpTrie),
Name: "dumptrie",
Usage: "Show the storage key/values of a given storage trie",
ArgsUsage: "<hex-encoded storage trie root> <hex-encoded start (optional)> <int max elements (optional)>",
Flags: []cli.Flag{
utils.DataDirFlag,
utils.SyncModeFlag,
utils.MainnetFlag,
utils.RopstenFlag,
utils.RinkebyFlag,
utils.GoerliFlag,
utils.YoloV3Flag,
},
Description: "This command looks up the specified database key from the database.",
}
)
func removeDB(ctx *cli.Context) error {
@ -380,3 +399,53 @@ func dbPut(ctx *cli.Context) error {
}
return db.Put(key, value)
}
// dbDumpTrie shows the key-value slots of a given storage trie
func dbDumpTrie(ctx *cli.Context) error {
if ctx.NArg() < 1 {
return fmt.Errorf("required arguments: %v", ctx.Command.ArgsUsage)
}
stack, _ := makeConfigNode(ctx)
defer stack.Close()
db := utils.MakeChainDatabase(ctx, stack, true)
defer db.Close()
var (
root []byte
start []byte
max = int64(-1)
err error
)
if root, err = hexutil.Decode(ctx.Args().Get(0)); err != nil {
log.Info("Could not decode the root", "error", err)
return err
}
stRoot := common.BytesToHash(root)
if ctx.NArg() >= 2 {
if start, err = hexutil.Decode(ctx.Args().Get(1)); err != nil {
log.Info("Could not decode the seek position", "error", err)
return err
}
}
if ctx.NArg() >= 3 {
if max, err = strconv.ParseInt(ctx.Args().Get(2), 10, 64); err != nil {
log.Info("Could not decode the max count", "error", err)
return err
}
}
theTrie, err := trie.New(stRoot, trie.NewDatabase(db))
if err != nil {
return err
}
var count int64
it := trie.NewIterator(theTrie.NodeIterator(start))
for it.Next() {
if max > 0 && count == max {
fmt.Printf("Exiting after %d values\n", count)
break
}
fmt.Printf(" %d. key %#x: %#x\n", count, it.Key, it.Value)
count++
}
return it.Err
}