區塊鏈教程eth源碼分析CMD深入分析（二）

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　　兄弟連區塊鏈教程eth源碼分析CMD深入分析（二），cmd包下的geth子包主函數啟動的各個子命令解析### cmd包下的geth子包主函數啟動的各個子命令解析#### /geth* __init__

function:匯入創世塊的json,以指定的json作為創世塊
args:<genesisPath>
demo: init /home/yujian/eth-go/genesis.json
notice:ethereum預設建立路徑為home目錄的.ethereum,如果該目錄下已經寫入過創世快，會執行失敗
success_result_demo:
WARN [01-16|10:25:12] No etherbase set and no accounts found as default
INFO [01-16|10:25:12] Allocated cache and file handles database=/home/yujian/.ethereum/geth/chaindata cache=16 handles=16
INFO [01-16|10:25:12] Writing custom genesis block
INFO [01-16|10:25:12] Successfully wrote genesis state database=chaindata hash=bf2891…ad1419
INFO [01-16|10:25:12] Allocated cache and file handles database=/home/yujian/.ethereum/geth/lightchaindata cache=16 handles=16
INFO [01-16|10:25:12] Writing custom genesis block
INFO [01-16|10:25:12] Successfully wrote genesis state database=lightchaindata hash=bf2891…ad1419

* __import__

function:匯入區塊資料到當前啟動並執行鏈中
args:<filename> (<filename 2> ... <filename N>)
demo: import /home/yujian/eth-block.txt
notice:如果匯入的檔案只要一個是錯誤的，那麼會失敗，如果有多個檔案錯誤，那麼程式會繼續執行忽略錯誤的．
success_result_demo:
WARN [01-16|11:00:32] No etherbase set and no accounts found as default
INFO [01-16|11:00:32] Allocated cache and file handles database=/home/yujian/.ethereum/geth/chaindata cache=128 handles=1024
Import done in 306.866μs.

INFO [01-16|11:00:32] Disk storage enabled for ethash caches dir=/home/yujian/.ethereum/geth/ethash count=3
Compactions
INFO [01-16|11:00:32] Disk storage enabled for ethash DAGs dir=/home/yujian/.ethash count=2
Level | Tables | Size(MB) | Time(sec) | Read(MB) | Write(MB)
-------+------------+---------------+---------------+---------------+---------------
INFO [01-16|11:00:32] Loaded most recent local header number=0 hash=bf2891…ad1419 td=33554432
0 | 3 | 0.00094 | 0.00000 | 0.00000 | 0.00000
INFO [01-16|11:00:32] Loaded most recent local full block number=0 hash=bf2891…ad1419 td=33554432

Trie cache misses: 0
INFO [01-16|11:00:32] Loaded most recent local fast block number=0 hash=bf2891…ad1419 td=33554432
Trie cache unloads: 0

INFO [01-16|11:00:32] Importing blockchain file=/home/yujian/eth-block.txt
Object memory: 34.677 MB current, 34.670 MB peak
System memory: 74.100 MB current, 73.850 MB peak
Allocations: 0.015 million
GC pause: 10.454997ms

Compacting entire database...
INFO [01-16|11:00:33] Database closed database=/home/yujian/.ethereum/geth/chaindata
Compaction done in 64.422235ms.

Compactions
Level | Tables | Size(MB) | Time(sec) | Read(MB) | Write(MB)
-------+------------+---------------+---------------+---------------+---------------
0 | 0 | 0.00000 | 0.00451 | 0.00000 | 0.00021
1 | 1 | 0.00053 | 0.00435 | 0.00114 | 0.00053

* __export__

function:匯出區塊資料到指定的檔案
args:<filename> [<blockNumFirst> <blockNumLast>]
demo: export /home/yujian/eth-block.txt
notice:
success_result_demo:
WARN [01-16|10:51:36] No etherbase set and no accounts found as default
INFO [01-16|10:51:36] Allocated cache and file handles database=/home/yujian/.ethereum/geth/chaindata cache=128 handles=1024
INFO [01-16|10:51:36] Disk storage enabled for ethash caches dir=/home/yujian/.ethereum/geth/ethash count=3
INFO [01-16|10:51:36] Disk storage enabled for ethash DAGs dir=/home/yujian/.ethash count=2
Export done in 628.951μsINFO [01-16|10:51:36] Loaded most recent local header number=0 hash=bf2891…ad1419 td=33554432
INFO [01-16|10:51:36] Loaded most recent local full block number=0 hash=bf2891…ad1419 td=33554432
INFO [01-16|10:51:36] Loaded most recent local fast block number=0 hash=bf2891…ad1419 td=33554432
INFO [01-16|10:51:36] Exporting blockchain file=/home/yujian/eth-block.txt
INFO [01-16|10:51:36] Exporting batch of blocks count=1
INFO [01-16|10:51:36] Exported blockchain file=/home/yujian/eth-block.txt

* __copydb__

function:從存在的鏈資料檔案夾中建立一條本地鏈
args:<sourceChaindataDir>
demo: copydb /home/yujian/eth-block.txt
notice:
success_result_demo:
WARN [01-16|11:35:55] No etherbase set and no accounts found as default
INFO [01-16|11:35:55] Allocated cache and file handles database=/home/yujian/.ethereum/geth/chaindata cache=128 handles=1024
INFO [01-16|11:35:55] Disk storage enabled for ethash caches dir=/home/yujian/.ethereum/geth/ethash count=3
INFO [01-16|11:35:55] Disk storage enabled for ethash DAGs dir=/home/yujian/.ethash count=2
INFO [01-16|11:35:55] Loaded most recent local header number=0 hash=bf2891…ad1419 td=33554432
INFO [01-16|11:35:55] Loaded most recent local full block number=0 hash=bf2891…ad1419 td=33554432
INFO [01-16|11:35:55] Loaded most recent local fast block number=0 hash=bf2891…ad1419 td=33554432
INFO [01-16|11:35:55] Allocated cache and file handles database=/home/yujian/eth-go/geth/chaindata cache=128 handles=256
INFO [01-16|11:35:55] Block synchronisation started
INFO [01-16|11:35:55] Imported new state entries count=1 elapsed=33.277μs processed=1 pending=0 retry=0 duplicate=0 unexpected=0
INFO [01-16|11:35:56] Imported new block headers count=11 elapsed=1.276s number=11 hash=ec3374…59a2ba ignored=0
Database copy done in 1.280940454s
Compacting entire database...
INFO [01-16|11:35:56] Imported new chain segment blocks=11 txs=0 mgas=0.000 elapsed=1.961ms mgasps=0.000 number=11 hash=ec3374…59a2ba
Compaction done in 11.130389ms.

* __removedb__

function:移除當前鏈的資料庫
args:""
demo: removedb
notice:預設當前鏈的資料在home目錄下的.ethereum目錄下
success_result_demo:
WARN [01-16|11:48:09] No etherbase set and no accounts found as default
/home/yujian/.ethereum/geth/chaindata
Remove this database? [y/N] y
/home/yujian/.ethereum/geth/lightchaindata
INFO [01-16|11:48:19] Database successfully deleted database=chaindata elapsed=7.832ms
Remove this database? [y/N] y
INFO [01-16|11:48:27] Database successfully deleted database=lightchaindata elapsed=481.229μs

* __dump__

function:轉存指定的塊
args:[<blockHash> | <blockNum>]...
demo: dump 0
notice:
success_result_demo:
"storage": {}
},
"af3cb5965933e7dad883693b9c3e15beb68a4873": {
"balance": "2000000000000000000000",
"nonce": 0,
"root": "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"codeHash": "c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
"code": "",
"storage": {}
},
"af4493e8521ca89d95f5267c1ab63f9f45411e1b": {
"balance": "200000000000000000000",
"nonce": 0,
"root": "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"codeHash": "c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
"code": "",
"storage": {}
},
}
}
INFO [01-16|14:02:06] Database closed database=/home/yujian/.ethereum/geth/chaindata

* __monitor__

function:監視和可視化節點指標
args:""
demo: monitor
notice:該命令本地未調通,需要先啟鏈，才能調用該命令去看監控的狀態
success_result_demo:
// TODO

* __account__

function:管理賬戶
args:"[new|list|update|import]"
demo: account new
notice:“帳戶匯入”選項只能用於匯入通用密鑰檔案
success_result_demo:
WARN [01-16|14:44:44] No etherbase set and no accounts found as default
Your new account is locked with a password. Please give a password. Do not forget this password.
!! Unsupported terminal, password will be echoed.
Passphrase: 123456

Repeat passphrase: 123456

Address: {2a23e9223d7af9c56f5abd0c8226021b51c98cbc}

Process finished with exit code 0

* __wallet__

function:匯入預付款錢包(一般用不到，用的是account功能)
args:""
demo: wallet import
notice:"錢包匯入"選項只能用於匯入預售錢包
success_result_demo:

　　* __console__

function:開啟一條私人鏈,並開啟一個可視化的js錢包控制台
args:""
demo: console
notice:
success_result_demo:
INFO [01-16|15:26:13] Starting peer-to-peer node instance=Geth/v1.7.3-unstable/linux-amd64/go1.9.2
INFO [01-16|15:26:13] Allocated cache and file handles database=/home/yujian/.ethereum/geth/chaindata cache=128 handles=1024
INFO [01-16|15:26:14] Initialised chain configuration config="{ChainID: 1 Homestead: 1150000 DAO: 1920000 DAOSupport: true EIP150: 2463000 EIP155: 2675000 EIP158: 2675000 Byzantium: 4370000 Engine: ethash}"
INFO [01-16|15:26:14] Disk storage enabled for ethash caches dir=/home/yujian/.ethereum/geth/ethash count=3
INFO [01-16|15:26:14] Disk storage enabled for ethash DAGs dir=/home/yujian/.ethash count=2
INFO [01-16|15:26:14] Initialising Ethereum protocol versions="[63 62]" network=1
INFO [01-16|15:26:14] Loaded most recent local header number=1127484 hash=ae7ee2…52ae4c td=8985161313979839462
INFO [01-16|15:26:14] Loaded most recent local full block number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [01-16|15:26:14] Loaded most recent local fast block number=1092806 hash=6e839a…2eb127 td=8395031237882431385
INFO [01-16|15:26:14] Upgrading chain index type=bloombits percentage=80
INFO [01-16|15:26:14] Loaded local transaction journal transactions=0 dropped=0
INFO [01-16|15:26:14] Regenerated local transaction journal transactions=0 accounts=0
INFO [01-16|15:26:14] Starting P2P networking
INFO [01-16|15:26:16] UDP listener up self=enode://bef014afb2b63c749d1e3917a25dc9e508cb67e6010965f11695beef50c29f40a[email protected][::]:30303
INFO [01-16|15:26:16] RLPx listener up self=enode://bef014afb2b63c749d1e3917a25dc9e508cb67e6010965f11695beef50c29f40a[email protected][::]:30303
INFO [01-16|15:26:16] IPC endpoint opened: /home/yujian/.ethereum/geth.ipc
Welcome to the Geth JavaScript console!

instance: Geth/v1.7.3-unstable/linux-amd64/go1.9.2
coinbase: 0x2a23e9223d7af9c56f5abd0c8226021b51c98cbc
at block: 0 (Thu, 01 Jan 1970 08:00:00 CST)
datadir: /home/yujian/.ethereum
modules: admin:1.0 debug:1.0 eth:1.0 miner:1.0 net:1.0 personal:1.0 rpc:1.0 txpool:1.0 web3:1.0

* __attach__

function:開啟一個可視化的js錢包控制台(串連到一個指定的鏈)
args:
--jspath loadScript JavaScript root path for loadScript (default: ".")
--exec value Execute JavaScript statement
--preload value Comma separated list of JavaScript files to preload into the console
--datadir "/root/.ethereum" Data directory for the databases and keystore
demo:attach --datadir="/home/yujian/.ethereum/geth.ipc"
notice:必須啟動一條本地鏈，這樣才能串連過去
success_result_demo:
Welcome to the Geth JavaScript console!

instance: Geth/v1.7.3-unstable/linux-amd64/go1.9.2
coinbase: 0x2a23e9223d7af9c56f5abd0c8226021b51c98cbc
at block: 0 (Thu, 01 Jan 1970 08:00:00 CST)
datadir: /home/yujian/.ethereum
modules: admin:1.0 debug:1.0 eth:1.0 miner:1.0 net:1.0 personal:1.0 rpc:1.0 txpool:1.0 web3:1.0

* __js__

　function:執行指定的js檔案
args:<jsfile> [jsfile...]
demo:js
notice:
success_result_demo:

* __makecache__

function:產生ethhash驗證緩衝(測試使用)
args:<blockNum> <outputDir>
demo:makecache 0 /home/yujian/
notice:
success_result_demo:
在對應的輸出目錄，將會產生一個cache檔案,如 cache-R23-0000000000000000

* __makedag__

function:產生ethhash mining dag(測試使用)
args:<blockNum> <outputDir>
demo:makedag 0 /home/yujian/
notice:
success_result_demo:
INFO [01-16|17:50:36] Generating DAG in progress epoch=0 percentage=92 elapsed=3m2.525s
INFO [01-16|17:50:38] Generating DAG in progress epoch=0 percentage=93 elapsed=3m4.338s
INFO [01-16|17:50:40] Generating DAG in progress epoch=0 percentage=94 elapsed=3m6.058s
INFO [01-16|17:50:41] Generating DAG in progress epoch=0 percentage=95 elapsed=3m7.795s
INFO [01-16|17:50:43] Generating DAG in progress epoch=0 percentage=96 elapsed=3m9.542s
INFO [01-16|17:50:45] Generating DAG in progress epoch=0 percentage=97 elapsed=3m11.380s
INFO [01-16|17:50:47] Generating DAG in progress epoch=0 percentage=98 elapsed=3m13.129s
INFO [01-16|17:50:49] Generating DAG in progress epoch=0 percentage=99 elapsed=3m15.303s
INFO [01-16|17:50:49] Generated ethash verification cache epoch=0 elapsed=3m15.306s

Process finished with exit code 0

在對應的輸出目錄,將會產生一個full檔案,如 full-R23-0000000000000000

* __version__

function:列印版本資料
args:""
demo:version
notice:
success_result_demo:
Geth
Version: 1.7.3-unstable
Architecture: amd64
Protocol Versions: [63 62]
Network Id: 1
Go Version: go1.9.2
Operating System: linux
GOPATH=/home/yujian/blockchain-workspace/go-project
GOROOT=/usr/local/go
　　

* __bug__

function:開啟一個視窗,直接跳轉到ethereum的github倉庫的issue
args:""
demo:bug
notice:
success_result_demo:
　　運行後會自動開啟瀏覽器，跳轉到ethereum的issue編輯頁面　

* __license__

function:顯示geth的license資訊
args:""
demo:license
notice:
success_result_demo:
Geth is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Geth is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with geth. If not, see <http://www.gnu.org/licenses/>.

* __dumpconfig__

function:顯示配置資訊
args:""
demo:dumpconfig
notice:
success_result_demo:
　[Eth]
NetworkId = 1
SyncMode = "fast"
LightPeers = 20
DatabaseCache = 128
Etherbase = "0x2a23e9223d7af9c56f5abd0c8226021b51c98cbc"
GasPrice = 18000000000
EthashCacheDir = "ethash"
EthashCachesInMem = 2
EthashCachesOnDisk = 3
EthashDatasetDir = "/home/yujian/.ethash"
EthashDatasetsInMem = 1
EthashDatasetsOnDisk = 2
EnablePreimageRecording = false

[Eth.TxPool]
NoLocals = false
Journal = "transactions.rlp"
Rejournal = 3600000000000
PriceLimit = 1
PriceBump = 10
AccountSlots = 16
GlobalSlots = 4096
AccountQueue = 64
GlobalQueue = 1024
Lifetime = 10800000000000

[Eth.GPO]
Blocks = 10
Percentile = 50

[Shh]
MaxMessageSize = 1048576
MinimumAcceptedPOW = 2e-01

[Node]
DataDir = "/home/yujian/.ethereum"
IPCPath = "geth.ipc"
HTTPPort = 8545
HTTPModules = ["net", "web3", "eth", "shh"]
WSPort = 8546
WSModules = ["net", "web3", "eth", "shh"]

[Node.P2P]
MaxPeers = 25
NoDiscovery = false
DiscoveryV5Addr = ":30304"
BootstrapNodes = ["enode://a979fb575495b8d6db44f750317d0f4622bf4c2aa3365d6af7c284339968eef29[email protected]52.16.188.185:30303", "enode://3f1d12044546b76342d59d4a05532c14b85aa669704bfe1f864fe079415aa2c02[email protected]13.93.211.84:30303", "enode://78de8a0916848093c73790ead81d1928bec737d565119932b98c6b100d944b7a9[email protected]191.235.84.50:30303", "enode://158f8aab45f6d19c6cbf4a089c2670541a8da11978a2f90dbf6a502a4a3bab80d[email protected]13.75.154.138:30303", "enode://1118980bf48b0a3640bdba04e0fe78b1add18e1cd99bf22d53daac1fd9972ad65[email protected]52.74.57.123:30303", "enode://979b7fa28feeb35a4741660a16076f1943202cb72b6af70d327f053e248bab9ba[email protected]5.1.83.226:30303"]
BootstrapNodesV5 = ["enode://0cc5f5ffb5d9098c8b8c62325f3797f56509bff942704687b6530992ac706e2cb[email protected]40.118.3.223:30305", "enode://1c7a64d76c0334b0418c004af2f67c50e36a3be60b5e4790bdac0439d21603469[email protected]40.118.3.223:30308", "enode://85c85d7143ae8bb96924f2b54f1b3e70d8c4d367af305325d30a61385a432f247[email protected]40.118.3.223:30309"]
StaticNodes = []
TrustedNodes = []
ListenAddr = ":30303"
EnableMsgEvents = false

[Dashboard]
Host = "localhost"
Port = 8080
Refresh = 3000000000　

區塊鏈教程eth源碼分析CMD深入分析（二）