diff options
Diffstat (limited to 'cmd/utils/cmd.go')
| -rw-r--r-- | cmd/utils/cmd.go | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/cmd/utils/cmd.go b/cmd/utils/cmd.go index 584afc804..a56507e4d 100644 --- a/cmd/utils/cmd.go +++ b/cmd/utils/cmd.go @@ -18,12 +18,14 @@ package utils import ( + "compress/gzip" "fmt" "io" "os" "os/signal" "regexp" "runtime" + "strings" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/core" @@ -133,7 +135,15 @@ func ImportChain(chain *core.BlockChain, fn string) error { return err } defer fh.Close() - stream := rlp.NewStream(fh, 0) + + var reader io.Reader = fh + if strings.HasSuffix(fn, ".gz") { + if reader, err = gzip.NewReader(reader); err != nil { + return err + } + } + + stream := rlp.NewStream(reader, 0) // Run actual the import. blocks := make(types.Blocks, importBatchSize) @@ -195,10 +205,18 @@ func ExportChain(blockchain *core.BlockChain, fn string) error { return err } defer fh.Close() - if err := blockchain.Export(fh); err != nil { + + var writer io.Writer = fh + if strings.HasSuffix(fn, ".gz") { + writer = gzip.NewWriter(writer) + defer writer.(*gzip.Writer).Close() + } + + if err := blockchain.Export(writer); err != nil { return err } glog.Infoln("Exported blockchain to ", fn) + return nil } @@ -210,7 +228,14 @@ func ExportAppendChain(blockchain *core.BlockChain, fn string, first uint64, las return err } defer fh.Close() - if err := blockchain.ExportN(fh, first, last); err != nil { + + var writer io.Writer = fh + if strings.HasSuffix(fn, ".gz") { + writer = gzip.NewWriter(writer) + defer writer.(*gzip.Writer).Close() + } + + if err := blockchain.ExportN(writer, first, last); err != nil { return err } glog.Infoln("Exported blockchain to ", fn) |