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cmd/geth, cmd/utils: don't use Ethereum for import, export and upgradedb

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The blockchain commands don't need the full stack. With this change,
p2p, miner, downloader, etc are no longer started for blockchain
operations.
This commit is contained in:
Felix Lange
2015-05-27 13:29:34 +02:00
parent 27e0d2a973
commit 3b9808f23c
3 changed files with 73 additions and 135 deletions
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51
cmd/utils/cmd.go
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@ -167,7 +167,7 @@ func FormatTransactionData(data string) []byte {
}
func ImportChain(chainmgr *core.ChainManager, fn string) error {
fmt.Printf("importing blockchain '%s'\n", fn)
glog.Infoln("Importing blockchain", fn)
fh, err := os.OpenFile(fn, os.O_RDONLY, os.ModePerm)
if err != nil {
return err
@ -176,43 +176,36 @@ func ImportChain(chainmgr *core.ChainManager, fn string) error {
chainmgr.Reset()
stream := rlp.NewStream(fh, 0)
var i, n int
batchSize := 2500
blocks := make(types.Blocks, batchSize)
for ; ; i++ {
var b types.Block
if err := stream.Decode(&b); err == io.EOF {
break
} else if err != nil {
return fmt.Errorf("at block %d: %v", i, err)
}
blocks[n] = &b
n++
if n == batchSize {
if _, err := chainmgr.InsertChain(blocks); err != nil {
return fmt.Errorf("invalid block %v", err)
n := 0
for {
// Load a batch of RLP blocks.
i := 0
for ; i < batchSize; i++ {
var b types.Block
if err := stream.Decode(&b); err == io.EOF {
break
} else if err != nil {
return fmt.Errorf("at block %d: %v", n, err)
}
n = 0
blocks = make(types.Blocks, batchSize)
blocks[i] = &b
n++
}
if i == 0 {
break
}
// Import the batch.
if _, err := chainmgr.InsertChain(blocks[:i]); err != nil {
return fmt.Errorf("invalid block %d: %v", n, err)
}
}
if n > 0 {
if _, err := chainmgr.InsertChain(blocks[:n]); err != nil {
return fmt.Errorf("invalid block %v", err)
}
}
fmt.Printf("imported %d blocks\n", i)
return nil
}
func ExportChain(chainmgr *core.ChainManager, fn string) error {
fmt.Printf("exporting blockchain '%s'\n", fn)
glog.Infoln("Exporting blockchain to", fn)
fh, err := os.OpenFile(fn, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, os.ModePerm)
if err != nil {
return err
@ -221,6 +214,6 @@ func ExportChain(chainmgr *core.ChainManager, fn string) error {
if err := chainmgr.Export(fh); err != nil {
return err
}
fmt.Printf("exported blockchain\n")
glog.Infoln("Exported blockchain to", fn)
return nil
}