func blockRecovery(ctx *cli.Context) {
if len(ctx.Args()) < 1 {
glog.Fatal("recover requires block number or hash")
}
arg := ctx.Args().First()
cfg := utils.MakeEthConfig(ClientIdentifier, nodeNameVersion, ctx)
blockDb, err := ethdb.NewLDBDatabase(filepath.Join(cfg.DataDir, "blockchain"), cfg.DatabaseCache)
if err != nil {
glog.Fatalln("could not open db:", err)
}
var block *types.Block
if arg[0] == '#' {
block = core.GetBlock(blockDb, core.GetCanonicalHash(blockDb, common.String2Big(arg[1:]).Uint64()))
} else {
block = core.GetBlock(blockDb, common.HexToHash(arg))
}
if block == nil {
glog.Fatalln("block not found. Recovery failed")
}
if err = core.WriteHeadBlockHash(blockDb, block.Hash()); err != nil {
glog.Fatalln("block write err", err)
}
glog.Infof("Recovery succesful. New HEAD %x\n", block.Hash())
}
func runSuite(test, file string) {
var tests []string
if test == defaultTest {
tests = allTests
} else {
tests = []string{test}
}
for _, curTest := range tests {
glog.Infoln("runSuite", curTest, file)
var err error
var files []string
if test == defaultTest {
// check if we have an explicit directory mapping for the test
if _, ok := testDirMapping[curTest]; ok {
files, err = getFiles(filepath.Join(file, testDirMapping[curTest]))
} else {
// otherwise assume test name
files, err = getFiles(filepath.Join(file, curTest))
}
} else {
files, err = getFiles(file)
}
if err != nil {
glog.Fatalln(err)
}
if len(files) == 0 {
glog.Warningln("No files matched path")
}
for _, curFile := range files {
// Skip blank entries
if len(curFile) == 0 {
continue
}
r, err := os.Open(curFile)
if err != nil {
glog.Fatalln(err)
}
defer r.Close()
err = runTestWithReader(curTest, r)
if err != nil {
if continueOnError {
glog.Errorln(err)
} else {
glog.Fatalln(err)
}
}
}
}
}
// MakeChain creates a chain manager from set command line flags.
func MakeChain(ctx *cli.Context) (chain *core.ChainManager, chainDb common.Database) {
datadir := ctx.GlobalString(DataDirFlag.Name)
cache := ctx.GlobalInt(CacheFlag.Name)
var err error
if chainDb, err = ethdb.NewLDBDatabase(filepath.Join(datadir, "chaindata"), cache); err != nil {
Fatalf("Could not open database: %v", err)
}
if ctx.GlobalBool(OlympicFlag.Name) {
InitOlympic()
_, err := core.WriteTestNetGenesisBlock(chainDb, 42)
if err != nil {
glog.Fatalln(err)
}
}
eventMux := new(event.TypeMux)
pow := ethash.New()
//genesis := core.GenesisBlock(uint64(ctx.GlobalInt(GenesisNonceFlag.Name)), blockDB)
chain, err = core.NewChainManager(chainDb, pow, eventMux)
if err != nil {
Fatalf("Could not start chainmanager: %v", err)
}
proc := core.NewBlockProcessor(chainDb, pow, chain, eventMux)
chain.SetProcessor(proc)
return chain, chainDb
}
func setupApp(c *cli.Context) error {
flagTest := c.GlobalString(TestFlag.Name)
flagFile := c.GlobalString(FileFlag.Name)
continueOnError = c.GlobalBool(ContinueOnErrorFlag.Name)
useStdIn := c.GlobalBool(ReadStdInFlag.Name)
skipTests = strings.Split(c.GlobalString(SkipTestsFlag.Name), " ")
if !useStdIn {
runSuite(flagTest, flagFile)
} else {
if err := runTestWithReader(flagTest, os.Stdin); err != nil {
glog.Fatalln(err)
}
}
return nil
}
func (bc *ChainManager) recover() bool {
data, _ := bc.chainDb.Get([]byte("checkpoint"))
if len(data) != 0 {
block := bc.GetBlock(common.BytesToHash(data))
if block != nil {
err := bc.chainDb.Put([]byte("LastBlock"), block.Hash().Bytes())
if err != nil {
glog.Fatalln("db write err:", err)
}
bc.currentBlock = block
bc.lastBlockHash = block.Hash()
return true
}
}
return false
}
// MakeChain creates a chain manager from set command line flags.
func MakeChain(ctx *cli.Context) (chain *core.BlockChain, chainDb ethdb.Database) {
var err error
chainDb = MakeChainDatabase(ctx)
if ctx.GlobalBool(OlympicFlag.Name) {
_, err := core.WriteTestNetGenesisBlock(chainDb)
if err != nil {
glog.Fatalln(err)
}
}
chainConfig := MustMakeChainConfigFromDb(ctx, chainDb)
pow := pow.PoW(core.FakePow{})
if !ctx.GlobalBool(FakePoWFlag.Name) {
pow = ethash.New()
}
chain, err = core.NewBlockChain(chainDb, chainConfig, pow, new(event.TypeMux))
if err != nil {
Fatalf("Could not start chainmanager: %v", err)
}
return chain, chainDb
}
func (bc *ChainManager) ResetWithGenesisBlock(gb *types.Block) {
bc.mu.Lock()
defer bc.mu.Unlock()
for block := bc.currentBlock; block != nil; block = bc.GetBlock(block.ParentHash()) {
bc.removeBlock(block)
}
// Prepare the genesis block
gb.Td = gb.Difficulty()
bc.genesisBlock = gb
err := WriteBlock(bc.chainDb, bc.genesisBlock)
if err != nil {
glog.Fatalln("db err:", err)
}
bc.insert(bc.genesisBlock)
bc.currentBlock = bc.genesisBlock
bc.makeCache()
bc.td = gb.Difficulty()
}
func (bc *ChainManager) Reset() {
bc.mu.Lock()
defer bc.mu.Unlock()
for block := bc.currentBlock; block != nil; block = bc.GetBlock(block.ParentHash()) {
bc.removeBlock(block)
}
bc.cache, _ = lru.New(blockCacheLimit)
// Prepare the genesis block
err := WriteBlock(bc.chainDb, bc.genesisBlock)
if err != nil {
glog.Fatalln("db err:", err)
}
bc.insert(bc.genesisBlock)
bc.currentBlock = bc.genesisBlock
bc.makeCache()
bc.setTotalDifficulty(common.Big("0"))
}
// WriteBlock writes the block to the chain (or pending queue)
func (self *ChainManager) WriteBlock(block *types.Block, queued bool) (status writeStatus, err error) {
self.wg.Add(1)
defer self.wg.Done()
cblock := self.currentBlock
// Compare the TD of the last known block in the canonical chain to make sure it's greater.
// At this point it's possible that a different chain (fork) becomes the new canonical chain.
if block.Td.Cmp(self.Td()) > 0 {
// chain fork
if block.ParentHash() != cblock.Hash() {
// during split we merge two different chains and create the new canonical chain
err := self.merge(cblock, block)
if err != nil {
return NonStatTy, err
}
status = SplitStatTy
}
self.mu.Lock()
self.setTotalDifficulty(block.Td)
self.insert(block)
self.mu.Unlock()
status = CanonStatTy
} else {
status = SideStatTy
}
err = WriteBlock(self.chainDb, block)
if err != nil {
glog.Fatalln("db err:", err)
}
// Delete from future blocks
self.futureBlocks.Remove(block.Hash())
return
}
func main() {
glog.SetToStderr(true)
app := cli.NewApp()
app.Name = "exptest"
app.Usage = "go-expanse test interface"
app.Action = setupApp
app.Version = "0.2.0"
app.Author = "go-expanse team"
app.Flags = []cli.Flag{
TestFlag,
FileFlag,
ContinueOnErrorFlag,
ReadStdInFlag,
SkipTestsFlag,
TraceFlag,
}
if err := app.Run(os.Args); err != nil {
glog.Fatalln(err)
}
}