add export blockchain subcommand, remove BlockDo

1 files changed, 17 insertions, 24 deletions

diff --git a/cmd/utils/cmd.go b/cmd/utils/cmd.go
index 99e60ff9e..8e516748e 100644
--- a/cmd/utils/cmd.go
+++ b/cmd/utils/cmd.go
@@ -35,7 +35,6 @@ import (
 	"github.com/ethereum/go-ethereum/logger"
 	"github.com/ethereum/go-ethereum/rlp"
 	rpchttp "github.com/ethereum/go-ethereum/rpc/http"
-	"github.com/ethereum/go-ethereum/state"
 	"github.com/ethereum/go-ethereum/xeth"
 )
 
@@ -188,27 +187,8 @@ func FormatTransactionData(data string) []byte {
 	return d
 }
 
-// Replay block
-func BlockDo(ethereum *eth.Ethereum, hash []byte) error {
-	block := ethereum.ChainManager().GetBlock(hash)
-	if block == nil {
-		return fmt.Errorf("unknown block %x", hash)
-	}
-
-	parent := ethereum.ChainManager().GetBlock(block.ParentHash())
-
-	statedb := state.New(parent.Root(), ethereum.StateDb())
-	_, err := ethereum.BlockProcessor().TransitionState(statedb, parent, block, true)
-	if err != nil {
-		return err
-	}
-
-	return nil
-
-}
-
-func ImportChain(chain *core.ChainManager, fn string) error {
-	fmt.Printf("importing chain '%s'\n", fn)
+func ImportChain(chainmgr *core.ChainManager, fn string) error {
+	fmt.Printf("importing blockchain '%s'\n", fn)
 	fh, err := os.OpenFile(fn, os.O_RDONLY, os.ModePerm)
 	if err != nil {
 		return err
@@ -220,11 +200,24 @@ func ImportChain(chain *core.ChainManager, fn string) error {
 		return err
 	}
 
-	chain.Reset()
-	if err := chain.InsertChain(blocks); err != nil {
+	chainmgr.Reset()
+	if err := chainmgr.InsertChain(blocks); err != nil {
 		return err
 	}
 	fmt.Printf("imported %d blocks\n", len(blocks))
 
 	return nil
 }
+
+func ExportChain(chainmgr *core.ChainManager, fn string) error {
+	fmt.Printf("exporting blockchain '%s'\n", fn)
+
+	data := chainmgr.Export()
+
+	if err := ethutil.WriteFile(fn, data); err != nil {
+		return err
+	}
+	fmt.Printf("exported blockchain\n")
+
+	return nil
+}