func getSha(db database.Db, str string) (chainhash.Hash, error) {
argtype, idx, sha, err := parsesha(str)
if err != nil {
log.Warnf("unable to decode [%v] %v", str, err)
return chainhash.Hash{}, err
}
switch argtype {
case argSha:
// nothing to do
case argHeight:
sha, err = db.FetchBlockShaByHeight(idx)
if err != nil {
return chainhash.Hash{}, err
}
}
if sha == nil {
fmt.Printf("wtf sha is nil but err is %v", err)
}
return *sha, nil
}
func DumpBlock(database database.Db, height int64, fo io.Writer, rflag bool, fflag bool, tflag bool) error {
sha, err := database.FetchBlockShaByHeight(height)
if err != nil {
return err
}
blk, err := database.FetchBlockBySha(sha)
if err != nil {
log.Warnf("Failed to fetch block %v, err %v", sha, err)
return err
}
rblk, err := blk.Bytes()
blkid := blk.Height()
if rflag {
log.Infof("Block %v depth %v %v", sha, blkid, spew.Sdump(rblk))
}
mblk := blk.MsgBlock()
if fflag {
log.Infof("Block %v depth %v %v", sha, blkid, spew.Sdump(mblk))
}
if tflag {
log.Infof("Num transactions %v", len(mblk.Transactions))
for i, tx := range mblk.Transactions {
txsha := tx.TxSha()
log.Infof("tx %v: %v", i, &txsha)
}
}
if fo != nil {
// generate and write header values
binary.Write(fo, binary.LittleEndian, uint32(wire.SimNet))
binary.Write(fo, binary.LittleEndian, uint32(len(rblk)))
// write block
fo.Write(rblk)
}
return nil
}