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l2geth: Add OVM ETH and message passer state dump (ethereum-optimism#…
…3742) This is necessary in order to perform the mainnet OVM ETH and withdrawal hashes migration. Operates using a L2GETH_STATE_DUMP_PATH environment variable that specifies the file that addresses should be dump to. They are not deduplicated. The format of the file is: ``` ETH|<ovm eth address> MSG|<sender>|<msg> ```
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| package statedumper | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "github.com/ethereum-optimism/optimism/l2geth/common" | ||
| "io" | ||
| "os" | ||
| "sync" | ||
| ) | ||
|
|
||
| type StateDumper interface { | ||
| WriteETH(address common.Address) | ||
| WriteMessage(sender common.Address, msg []byte) | ||
| } | ||
|
|
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| var DefaultStateDumper StateDumper | ||
|
|
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| func NewStateDumper() StateDumper { | ||
| path := os.Getenv("L2GETH_STATE_DUMP_PATH") | ||
| if path == "" { | ||
| return &noopStateDumper{} | ||
| } | ||
|
|
||
| f, err := os.OpenFile(path, os.O_APPEND|os.O_CREATE, 0o755) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| return &FileStateDumper{ | ||
| f: f, | ||
| } | ||
| } | ||
|
|
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| type FileStateDumper struct { | ||
| f io.Writer | ||
| mtx sync.Mutex | ||
| } | ||
|
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| func (s *FileStateDumper) WriteETH(address common.Address) { | ||
| s.mtx.Lock() | ||
| defer s.mtx.Unlock() | ||
| if _, err := s.f.Write([]byte(fmt.Sprintf("ETH|%s\n", address.Hex()))); err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
|
|
||
| func (s *FileStateDumper) WriteMessage(sender common.Address, msg []byte) { | ||
| s.mtx.Lock() | ||
| defer s.mtx.Unlock() | ||
| if _, err := s.f.Write([]byte(fmt.Sprintf("MSG|%s|%x\n", sender.Hex(), msg))); err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
|
|
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| type noopStateDumper struct { | ||
| } | ||
|
|
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| func (n *noopStateDumper) WriteETH(address common.Address) { | ||
| } | ||
|
|
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| func (n *noopStateDumper) WriteMessage(sender common.Address, msg []byte) { | ||
| } | ||
|
|
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| func init() { | ||
| DefaultStateDumper = NewStateDumper() | ||
| } | ||
|
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| func WriteETH(address common.Address) { | ||
| DefaultStateDumper.WriteETH(address) | ||
| } | ||
|
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| func WriteMessage(sender common.Address, msg []byte) { | ||
| DefaultStateDumper.WriteMessage(sender, msg) | ||
| } |