Commit 488528e9 authored by Jeffrey Wilcke's avatar Jeffrey Wilcke

Merge pull request #2497 from karalabe/version-contract-3

Geth release oracle
parents 1c20313a 4536b993
...@@ -47,7 +47,8 @@ type ContractCaller interface { ...@@ -47,7 +47,8 @@ type ContractCaller interface {
// used when the user does not provide some needed values, but rather leaves it up // used when the user does not provide some needed values, but rather leaves it up
// to the transactor to decide. // to the transactor to decide.
type ContractTransactor interface { type ContractTransactor interface {
// Nonce retrieves the current pending nonce associated with an account. // PendingAccountNonce retrieves the current pending nonce associated with an
// account.
PendingAccountNonce(account common.Address) (uint64, error) PendingAccountNonce(account common.Address) (uint64, error)
// SuggestGasPrice retrieves the currently suggested gas price to allow a timely // SuggestGasPrice retrieves the currently suggested gas price to allow a timely
...@@ -62,7 +63,7 @@ type ContractTransactor interface { ...@@ -62,7 +63,7 @@ type ContractTransactor interface {
EstimateGasLimit(sender common.Address, contract *common.Address, value *big.Int, data []byte) (*big.Int, error) EstimateGasLimit(sender common.Address, contract *common.Address, value *big.Int, data []byte) (*big.Int, error)
// SendTransaction injects the transaction into the pending pool for execution. // SendTransaction injects the transaction into the pending pool for execution.
SendTransaction(*types.Transaction) error SendTransaction(tx *types.Transaction) error
} }
// ContractBackend defines the methods needed to allow operating with contract // ContractBackend defines the methods needed to allow operating with contract
......
...@@ -18,6 +18,7 @@ ...@@ -18,6 +18,7 @@
package main package main
import ( import (
"encoding/hex"
"fmt" "fmt"
"io/ioutil" "io/ioutil"
"os" "os"
...@@ -41,31 +42,48 @@ import ( ...@@ -41,31 +42,48 @@ import (
"github.com/ethereum/go-ethereum/metrics" "github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/node" "github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/params" "github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/release"
"github.com/ethereum/go-ethereum/rlp" "github.com/ethereum/go-ethereum/rlp"
) )
const ( const (
ClientIdentifier = "Geth" clientIdentifier = "Geth" // Client identifier to advertise over the network
Version = "1.5.0-unstable" versionMajor = 1 // Major version component of the current release
VersionMajor = 1 versionMinor = 5 // Minor version component of the current release
VersionMinor = 5 versionPatch = 0 // Patch version component of the current release
VersionPatch = 0 versionMeta = "unstable" // Version metadata to append to the version string
versionOracle = "0xfa7b9770ca4cb04296cac84f37736d4041251cdf" // Ethereum address of the Geth release oracle
) )
var ( var (
gitCommit string // set via linker flagg gitCommit string // Git SHA1 commit hash of the release (set via linker flags)
nodeNameVersion string verString string // Combined textual representation of all the version components
app *cli.App relConfig release.Config // Structured version information and release oracle config
app *cli.App
) )
func init() { func init() {
if gitCommit == "" { // Construct the textual version string from the individual components
nodeNameVersion = Version verString = fmt.Sprintf("%d.%d.%d", versionMajor, versionMinor, versionPatch)
} else { if versionMeta != "" {
nodeNameVersion = Version + "-" + gitCommit[:8] verString += "-" + versionMeta
}
if gitCommit != "" {
verString += "-" + gitCommit[:8]
} }
// Construct the version release oracle configuration
relConfig.Oracle = common.HexToAddress(versionOracle)
app = utils.NewApp(Version, "the go-ethereum command line interface") relConfig.Major = uint32(versionMajor)
relConfig.Minor = uint32(versionMinor)
relConfig.Patch = uint32(versionPatch)
commit, _ := hex.DecodeString(gitCommit)
copy(relConfig.Commit[:], commit)
// Initialize the CLI app and start Geth
app = utils.NewApp(verString, "the go-ethereum command line interface")
app.Action = geth app.Action = geth
app.HideVersion = true // we have a command to print the version app.HideVersion = true // we have a command to print the version
app.Commands = []cli.Command{ app.Commands = []cli.Command{
...@@ -257,7 +275,7 @@ func makeDefaultExtra() []byte { ...@@ -257,7 +275,7 @@ func makeDefaultExtra() []byte {
Name string Name string
GoVersion string GoVersion string
Os string Os string
}{uint(VersionMajor<<16 | VersionMinor<<8 | VersionPatch), ClientIdentifier, runtime.Version(), runtime.GOOS} }{uint(versionMajor<<16 | versionMinor<<8 | versionPatch), clientIdentifier, runtime.Version(), runtime.GOOS}
extra, err := rlp.EncodeToBytes(clientInfo) extra, err := rlp.EncodeToBytes(clientInfo)
if err != nil { if err != nil {
glog.V(logger.Warn).Infoln("error setting canonical miner information:", err) glog.V(logger.Warn).Infoln("error setting canonical miner information:", err)
...@@ -275,7 +293,7 @@ func makeDefaultExtra() []byte { ...@@ -275,7 +293,7 @@ func makeDefaultExtra() []byte {
// It creates a default node based on the command line arguments and runs it in // It creates a default node based on the command line arguments and runs it in
// blocking mode, waiting for it to be shut down. // blocking mode, waiting for it to be shut down.
func geth(ctx *cli.Context) { func geth(ctx *cli.Context) {
node := utils.MakeSystemNode(ClientIdentifier, nodeNameVersion, makeDefaultExtra(), ctx) node := utils.MakeSystemNode(clientIdentifier, verString, relConfig, makeDefaultExtra(), ctx)
startNode(ctx, node) startNode(ctx, node)
node.Wait() node.Wait()
} }
...@@ -339,7 +357,7 @@ func initGenesis(ctx *cli.Context) { ...@@ -339,7 +357,7 @@ func initGenesis(ctx *cli.Context) {
// same time. // same time.
func console(ctx *cli.Context) { func console(ctx *cli.Context) {
// Create and start the node based on the CLI flags // Create and start the node based on the CLI flags
node := utils.MakeSystemNode(ClientIdentifier, nodeNameVersion, makeDefaultExtra(), ctx) node := utils.MakeSystemNode(clientIdentifier, verString, relConfig, makeDefaultExtra(), ctx)
startNode(ctx, node) startNode(ctx, node)
// Attach to the newly started node, and either execute script or become interactive // Attach to the newly started node, and either execute script or become interactive
...@@ -372,7 +390,7 @@ func console(ctx *cli.Context) { ...@@ -372,7 +390,7 @@ func console(ctx *cli.Context) {
// of the JavaScript files specified as command arguments. // of the JavaScript files specified as command arguments.
func execScripts(ctx *cli.Context) { func execScripts(ctx *cli.Context) {
// Create and start the node based on the CLI flags // Create and start the node based on the CLI flags
node := utils.MakeSystemNode(ClientIdentifier, nodeNameVersion, makeDefaultExtra(), ctx) node := utils.MakeSystemNode(clientIdentifier, verString, relConfig, makeDefaultExtra(), ctx)
startNode(ctx, node) startNode(ctx, node)
defer node.Stop() defer node.Stop()
...@@ -488,11 +506,8 @@ func gpubench(ctx *cli.Context) { ...@@ -488,11 +506,8 @@ func gpubench(ctx *cli.Context) {
} }
func version(c *cli.Context) { func version(c *cli.Context) {
fmt.Println(ClientIdentifier) fmt.Println(clientIdentifier)
fmt.Println("Version:", Version) fmt.Println("Version:", version)
if gitCommit != "" {
fmt.Println("Git Commit:", gitCommit)
}
fmt.Println("Protocol Versions:", eth.ProtocolVersions) fmt.Println("Protocol Versions:", eth.ProtocolVersions)
fmt.Println("Network Id:", c.GlobalInt(utils.NetworkIdFlag.Name)) fmt.Println("Network Id:", c.GlobalInt(utils.NetworkIdFlag.Name))
fmt.Println("Go Version:", runtime.Version()) fmt.Println("Go Version:", runtime.Version())
......
...@@ -48,6 +48,7 @@ import ( ...@@ -48,6 +48,7 @@ import (
"github.com/ethereum/go-ethereum/p2p/nat" "github.com/ethereum/go-ethereum/p2p/nat"
"github.com/ethereum/go-ethereum/params" "github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow" "github.com/ethereum/go-ethereum/pow"
"github.com/ethereum/go-ethereum/release"
"github.com/ethereum/go-ethereum/rpc" "github.com/ethereum/go-ethereum/rpc"
"github.com/ethereum/go-ethereum/whisper" "github.com/ethereum/go-ethereum/whisper"
) )
...@@ -641,7 +642,7 @@ func MakePasswordList(ctx *cli.Context) []string { ...@@ -641,7 +642,7 @@ func MakePasswordList(ctx *cli.Context) []string {
// MakeSystemNode sets up a local node, configures the services to launch and // MakeSystemNode sets up a local node, configures the services to launch and
// assembles the P2P protocol stack. // assembles the P2P protocol stack.
func MakeSystemNode(name, version string, extra []byte, ctx *cli.Context) *node.Node { func MakeSystemNode(name, version string, relconf release.Config, extra []byte, ctx *cli.Context) *node.Node {
// Avoid conflicting network flags // Avoid conflicting network flags
networks, netFlags := 0, []cli.BoolFlag{DevModeFlag, TestNetFlag, OlympicFlag} networks, netFlags := 0, []cli.BoolFlag{DevModeFlag, TestNetFlag, OlympicFlag}
for _, flag := range netFlags { for _, flag := range netFlags {
...@@ -772,7 +773,11 @@ func MakeSystemNode(name, version string, extra []byte, ctx *cli.Context) *node. ...@@ -772,7 +773,11 @@ func MakeSystemNode(name, version string, extra []byte, ctx *cli.Context) *node.
Fatalf("Failed to register the Whisper service: %v", err) Fatalf("Failed to register the Whisper service: %v", err)
} }
} }
if err := stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
return release.NewReleaseService(ctx, relconf)
}); err != nil {
Fatalf("Failed to register the Geth release oracle service: %v", err)
}
return stack return stack
} }
......
...@@ -52,14 +52,14 @@ import ( ...@@ -52,14 +52,14 @@ import (
"golang.org/x/net/context" "golang.org/x/net/context"
) )
// ErrNoCode is returned by call and transact operations for which the requested // errNoCode is returned by call and transact operations for which the requested
// recipient contract to operate on does not exist in the state db or does not // recipient contract to operate on does not exist in the state db or does not
// have any code associated with it (i.e. suicided). // have any code associated with it (i.e. suicided).
// //
// Please note, this error string is part of the RPC API and is expected by the // Please note, this error string is part of the RPC API and is expected by the
// native contract bindings to signal this particular error. Do not change this // native contract bindings to signal this particular error. Do not change this
// as it will break all dependent code! // as it will break all dependent code!
var ErrNoCode = errors.New("no contract code at given address") var errNoCode = errors.New("no contract code at given address")
const defaultGas = uint64(90000) const defaultGas = uint64(90000)
...@@ -107,8 +107,11 @@ type PublicEthereumAPI struct { ...@@ -107,8 +107,11 @@ type PublicEthereumAPI struct {
} }
// NewPublicEthereumAPI creates a new Ethereum protocol API. // NewPublicEthereumAPI creates a new Ethereum protocol API.
func NewPublicEthereumAPI(e *Ethereum, gpo *GasPriceOracle) *PublicEthereumAPI { func NewPublicEthereumAPI(e *Ethereum) *PublicEthereumAPI {
return &PublicEthereumAPI{e, gpo} return &PublicEthereumAPI{
e: e,
gpo: e.gpo,
}
} }
// GasPrice returns a suggestion for a gas price. // GasPrice returns a suggestion for a gas price.
...@@ -717,7 +720,7 @@ func (s *PublicBlockChainAPI) doCall(args CallArgs, blockNr rpc.BlockNumber) (st ...@@ -717,7 +720,7 @@ func (s *PublicBlockChainAPI) doCall(args CallArgs, blockNr rpc.BlockNumber) (st
// If there's no code to interact with, respond with an appropriate error // If there's no code to interact with, respond with an appropriate error
if args.To != nil { if args.To != nil {
if code := stateDb.GetCode(*args.To); len(code) == 0 { if code := stateDb.GetCode(*args.To); len(code) == 0 {
return "0x", nil, ErrNoCode return "0x", nil, errNoCode
} }
} }
// Retrieve the account state object to interact with // Retrieve the account state object to interact with
...@@ -914,18 +917,17 @@ type PublicTransactionPoolAPI struct { ...@@ -914,18 +917,17 @@ type PublicTransactionPoolAPI struct {
} }
// NewPublicTransactionPoolAPI creates a new RPC service with methods specific for the transaction pool. // NewPublicTransactionPoolAPI creates a new RPC service with methods specific for the transaction pool.
func NewPublicTransactionPoolAPI(e *Ethereum, gpo *GasPriceOracle) *PublicTransactionPoolAPI { func NewPublicTransactionPoolAPI(e *Ethereum) *PublicTransactionPoolAPI {
api := &PublicTransactionPoolAPI{ api := &PublicTransactionPoolAPI{
eventMux: e.EventMux(), eventMux: e.eventMux,
gpo: gpo, gpo: e.gpo,
chainDb: e.ChainDb(), chainDb: e.chainDb,
bc: e.BlockChain(), bc: e.blockchain,
am: e.AccountManager(), am: e.accountManager,
txPool: e.TxPool(), txPool: e.txPool,
miner: e.Miner(), miner: e.miner,
pendingTxSubs: make(map[string]rpc.Subscription), pendingTxSubs: make(map[string]rpc.Subscription),
} }
go api.subscriptionLoop() go api.subscriptionLoop()
return api return api
......
...@@ -119,6 +119,7 @@ type Ethereum struct { ...@@ -119,6 +119,7 @@ type Ethereum struct {
protocolManager *ProtocolManager protocolManager *ProtocolManager
SolcPath string SolcPath string
solc *compiler.Solidity solc *compiler.Solidity
gpo *GasPriceOracle
GpoMinGasPrice *big.Int GpoMinGasPrice *big.Int
GpoMaxGasPrice *big.Int GpoMaxGasPrice *big.Int
...@@ -260,6 +261,8 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) { ...@@ -260,6 +261,8 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
} }
return nil, err return nil, err
} }
eth.gpo = NewGasPriceOracle(eth)
newPool := core.NewTxPool(eth.chainConfig, eth.EventMux(), eth.blockchain.State, eth.blockchain.GasLimit) newPool := core.NewTxPool(eth.chainConfig, eth.EventMux(), eth.blockchain.State, eth.blockchain.GasLimit)
eth.txPool = newPool eth.txPool = newPool
...@@ -276,34 +279,31 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) { ...@@ -276,34 +279,31 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
// APIs returns the collection of RPC services the ethereum package offers. // APIs returns the collection of RPC services the ethereum package offers.
// NOTE, some of these services probably need to be moved to somewhere else. // NOTE, some of these services probably need to be moved to somewhere else.
func (s *Ethereum) APIs() []rpc.API { func (s *Ethereum) APIs() []rpc.API {
// share gas price oracle in API's
gpo := NewGasPriceOracle(s)
return []rpc.API{ return []rpc.API{
{ {
Namespace: "eth", Namespace: "eth",
Version: "1.0", Version: "1.0",
Service: NewPublicEthereumAPI(s, gpo), Service: NewPublicEthereumAPI(s),
Public: true, Public: true,
}, { }, {
Namespace: "eth", Namespace: "eth",
Version: "1.0", Version: "1.0",
Service: NewPublicAccountAPI(s.AccountManager()), Service: NewPublicAccountAPI(s.accountManager),
Public: true, Public: true,
}, { }, {
Namespace: "personal", Namespace: "personal",
Version: "1.0", Version: "1.0",
Service: NewPrivateAccountAPI(s.AccountManager()), Service: NewPrivateAccountAPI(s.accountManager),
Public: false, Public: false,
}, { }, {
Namespace: "eth", Namespace: "eth",
Version: "1.0", Version: "1.0",
Service: NewPublicBlockChainAPI(s.chainConfig, s.BlockChain(), s.Miner(), s.ChainDb(), gpo, s.EventMux(), s.AccountManager()), Service: NewPublicBlockChainAPI(s.chainConfig, s.blockchain, s.miner, s.chainDb, s.gpo, s.eventMux, s.accountManager),
Public: true, Public: true,
}, { }, {
Namespace: "eth", Namespace: "eth",
Version: "1.0", Version: "1.0",
Service: NewPublicTransactionPoolAPI(s, gpo), Service: NewPublicTransactionPoolAPI(s),
Public: true, Public: true,
}, { }, {
Namespace: "eth", Namespace: "eth",
...@@ -313,7 +313,7 @@ func (s *Ethereum) APIs() []rpc.API { ...@@ -313,7 +313,7 @@ func (s *Ethereum) APIs() []rpc.API {
}, { }, {
Namespace: "eth", Namespace: "eth",
Version: "1.0", Version: "1.0",
Service: downloader.NewPublicDownloaderAPI(s.Downloader(), s.EventMux()), Service: downloader.NewPublicDownloaderAPI(s.protocolManager.downloader, s.eventMux),
Public: true, Public: true,
}, { }, {
Namespace: "miner", Namespace: "miner",
...@@ -328,7 +328,7 @@ func (s *Ethereum) APIs() []rpc.API { ...@@ -328,7 +328,7 @@ func (s *Ethereum) APIs() []rpc.API {
}, { }, {
Namespace: "eth", Namespace: "eth",
Version: "1.0", Version: "1.0",
Service: filters.NewPublicFilterAPI(s.ChainDb(), s.EventMux()), Service: filters.NewPublicFilterAPI(s.chainDb, s.eventMux),
Public: true, Public: true,
}, { }, {
Namespace: "admin", Namespace: "admin",
...@@ -351,7 +351,7 @@ func (s *Ethereum) APIs() []rpc.API { ...@@ -351,7 +351,7 @@ func (s *Ethereum) APIs() []rpc.API {
}, { }, {
Namespace: "admin", Namespace: "admin",
Version: "1.0", Version: "1.0",
Service: ethreg.NewPrivateRegistarAPI(s.chainConfig, s.BlockChain(), s.ChainDb(), s.TxPool(), s.AccountManager()), Service: ethreg.NewPrivateRegistarAPI(s.chainConfig, s.blockchain, s.chainDb, s.txPool, s.accountManager),
}, },
} }
} }
......
// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package eth
import (
"math/big"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/rpc"
)
// ContractBackend implements bind.ContractBackend with direct calls to Ethereum
// internals to support operating on contracts within subprotocols like eth and
// swarm.
//
// Internally this backend uses the already exposed API endpoints of the Ethereum
// object. These should be rewritten to internal Go method calls when the Go API
// is refactored to support a clean library use.
type ContractBackend struct {
eapi *PublicEthereumAPI // Wrapper around the Ethereum object to access metadata
bcapi *PublicBlockChainAPI // Wrapper around the blockchain to access chain data
txapi *PublicTransactionPoolAPI // Wrapper around the transaction pool to access transaction data
}
// NewContractBackend creates a new native contract backend using an existing
// Etheruem object.
func NewContractBackend(eth *Ethereum) *ContractBackend {
return &ContractBackend{
eapi: NewPublicEthereumAPI(eth),
bcapi: NewPublicBlockChainAPI(eth.chainConfig, eth.blockchain, eth.miner, eth.chainDb, eth.gpo, eth.eventMux, eth.accountManager),
txapi: NewPublicTransactionPoolAPI(eth),
}
}
// ContractCall implements bind.ContractCaller executing an Ethereum contract
// call with the specified data as the input. The pending flag requests execution
// against the pending block, not the stable head of the chain.
func (b *ContractBackend) ContractCall(contract common.Address, data []byte, pending bool) ([]byte, error) {
// Convert the input args to the API spec
args := CallArgs{
To: &contract,
Data: common.ToHex(data),
}
block := rpc.LatestBlockNumber
if pending {
block = rpc.PendingBlockNumber
}
// Execute the call and convert the output back to Go types
out, err := b.bcapi.Call(args, block)
if err == errNoCode {
err = bind.ErrNoCode
}
return common.FromHex(out), err
}
// PendingAccountNonce implements bind.ContractTransactor retrieving the current
// pending nonce associated with an account.
func (b *ContractBackend) PendingAccountNonce(account common.Address) (uint64, error) {
out, err := b.txapi.GetTransactionCount(account, rpc.PendingBlockNumber)
return out.Uint64(), err
}
// SuggestGasPrice implements bind.ContractTransactor retrieving the currently
// suggested gas price to allow a timely execution of a transaction.
func (b *ContractBackend) SuggestGasPrice() (*big.Int, error) {
return b.eapi.GasPrice(), nil
}
// EstimateGasLimit implements bind.ContractTransactor triing to estimate the gas
// needed to execute a specific transaction based on the current pending state of
// the backend blockchain. There is no guarantee that this is the true gas limit
// requirement as other transactions may be added or removed by miners, but it
// should provide a basis for setting a reasonable default.
func (b *ContractBackend) EstimateGasLimit(sender common.Address, contract *common.Address, value *big.Int, data []byte) (*big.Int, error) {
out, err := b.bcapi.EstimateGas(CallArgs{
From: sender,
To: contract,
Value: *rpc.NewHexNumber(value),
Data: common.ToHex(data),
})
if err == errNoCode {
err = bind.ErrNoCode
}
return out.BigInt(), err
}
// SendTransaction implements bind.ContractTransactor injects the transaction
// into the pending pool for execution.
func (b *ContractBackend) SendTransaction(tx *types.Transaction) error {
raw, _ := rlp.EncodeToBytes(tx)
_, err := b.txapi.SendRawTransaction(common.ToHex(raw))
return err
}
...@@ -311,7 +311,7 @@ func (n *Node) startIPC(apis []rpc.API) error { ...@@ -311,7 +311,7 @@ func (n *Node) startIPC(apis []rpc.API) error {
glog.V(logger.Error).Infof("IPC accept failed: %v", err) glog.V(logger.Error).Infof("IPC accept failed: %v", err)
continue continue
} }
go handler.ServeCodec(rpc.NewJSONCodec(conn), rpc.OptionMethodInvocation | rpc.OptionSubscriptions) go handler.ServeCodec(rpc.NewJSONCodec(conn), rpc.OptionMethodInvocation|rpc.OptionSubscriptions)
} }
}() }()
// All listeners booted successfully // All listeners booted successfully
......
...@@ -68,7 +68,7 @@ type ServiceConstructor func(ctx *ServiceContext) (Service, error) ...@@ -68,7 +68,7 @@ type ServiceConstructor func(ctx *ServiceContext) (Service, error)
// - Restart logic is not required as the node will create a fresh instance // - Restart logic is not required as the node will create a fresh instance
// every time a service is started. // every time a service is started.
type Service interface { type Service interface {
// Protocol retrieves the P2P protocols the service wishes to start. // Protocols retrieves the P2P protocols the service wishes to start.
Protocols() []p2p.Protocol Protocols() []p2p.Protocol
// APIs retrieves the list of RPC descriptors the service provides // APIs retrieves the list of RPC descriptors the service provides
......
// This file is an automatically generated Go binding. Do not modify as any
// change will likely be lost upon the next re-generation!
package release
import (
"math/big"
"strings"
"github.com/ethereum/go-ethereum/accounts/abi"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
)
// ReleaseOracleABI is the input ABI used to generate the binding from.
const ReleaseOracleABI = `[{"constant":true,"inputs":[],"name":"currentVersion","outputs":[{"name":"major","type":"uint32"},{"name":"minor","type":"uint32"},{"name":"patch","type":"uint32"},{"name":"commit","type":"bytes20"},{"name":"time","type":"uint256"}],"type":"function"},{"constant":true,"inputs":[],"name":"proposedVersion","outputs":[{"name":"major","type":"uint32"},{"name":"minor","type":"uint32"},{"name":"patch","type":"uint32"},{"name":"commit","type":"bytes20"},{"name":"pass","type":"address[]"},{"name":"fail","type":"address[]"}],"type":"function"},{"constant":true,"inputs":[],"name":"signers","outputs":[{"name":"","type":"address[]"}],"type":"function"},{"constant":true,"inputs":[],"name":"authProposals","outputs":[{"name":"","type":"address[]"}],"type":"function"},{"constant":true,"inputs":[{"name":"user","type":"address"}],"name":"authVotes","outputs":[{"name":"promote","type":"address[]"},{"name":"demote","type":"address[]"}],"type":"function"},{"constant":false,"inputs":[{"name":"user","type":"address"}],"name":"promote","outputs":[],"type":"function"},{"constant":false,"inputs":[{"name":"user","type":"address"}],"name":"demote","outputs":[],"type":"function"},{"constant":false,"inputs":[{"name":"major","type":"uint32"},{"name":"minor","type":"uint32"},{"name":"patch","type":"uint32"},{"name":"commit","type":"bytes20"}],"name":"release","outputs":[],"type":"function"},{"constant":false,"inputs":[],"name":"nuke","outputs":[],"type":"function"},{"inputs":[{"name":"signers","type":"address[]"}],"type":"constructor"}]`
// ReleaseOracleBin is the compiled bytecode used for deploying new contracts.
const ReleaseOracleBin = `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// DeployReleaseOracle deploys a new Ethereum contract, binding an instance of ReleaseOracle to it.
func DeployReleaseOracle(auth *bind.TransactOpts, backend bind.ContractBackend, signers []common.Address) (common.Address, *types.Transaction, *ReleaseOracle, error) {
parsed, err := abi.JSON(strings.NewReader(ReleaseOracleABI))
if err != nil {
return common.Address{}, nil, nil, err
}
address, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex(ReleaseOracleBin), backend, signers)
if err != nil {
return common.Address{}, nil, nil, err
}
return address, tx, &ReleaseOracle{ReleaseOracleCaller: ReleaseOracleCaller{contract: contract}, ReleaseOracleTransactor: ReleaseOracleTransactor{contract: contract}}, nil
}
// ReleaseOracle is an auto generated Go binding around an Ethereum contract.
type ReleaseOracle struct {
ReleaseOracleCaller // Read-only binding to the contract
ReleaseOracleTransactor // Write-only binding to the contract
}
// ReleaseOracleCaller is an auto generated read-only Go binding around an Ethereum contract.
type ReleaseOracleCaller struct {
contract *bind.BoundContract // Generic contract wrapper for the low level calls
}
// ReleaseOracleTransactor is an auto generated write-only Go binding around an Ethereum contract.
type ReleaseOracleTransactor struct {
contract *bind.BoundContract // Generic contract wrapper for the low level calls
}
// ReleaseOracleSession is an auto generated Go binding around an Ethereum contract,
// with pre-set call and transact options.
type ReleaseOracleSession struct {
Contract *ReleaseOracle // Generic contract binding to set the session for
CallOpts bind.CallOpts // Call options to use throughout this session
TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
}
// ReleaseOracleCallerSession is an auto generated read-only Go binding around an Ethereum contract,
// with pre-set call options.
type ReleaseOracleCallerSession struct {
Contract *ReleaseOracleCaller // Generic contract caller binding to set the session for
CallOpts bind.CallOpts // Call options to use throughout this session
}
// ReleaseOracleTransactorSession is an auto generated write-only Go binding around an Ethereum contract,
// with pre-set transact options.
type ReleaseOracleTransactorSession struct {
Contract *ReleaseOracleTransactor // Generic contract transactor binding to set the session for
TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
}
// ReleaseOracleRaw is an auto generated low-level Go binding around an Ethereum contract.
type ReleaseOracleRaw struct {
Contract *ReleaseOracle // Generic contract binding to access the raw methods on
}
// ReleaseOracleCallerRaw is an auto generated low-level read-only Go binding around an Ethereum contract.
type ReleaseOracleCallerRaw struct {
Contract *ReleaseOracleCaller // Generic read-only contract binding to access the raw methods on
}
// ReleaseOracleTransactorRaw is an auto generated low-level write-only Go binding around an Ethereum contract.
type ReleaseOracleTransactorRaw struct {
Contract *ReleaseOracleTransactor // Generic write-only contract binding to access the raw methods on
}
// NewReleaseOracle creates a new instance of ReleaseOracle, bound to a specific deployed contract.
func NewReleaseOracle(address common.Address, backend bind.ContractBackend) (*ReleaseOracle, error) {
contract, err := bindReleaseOracle(address, backend.(bind.ContractCaller), backend.(bind.ContractTransactor))
if err != nil {
return nil, err
}
return &ReleaseOracle{ReleaseOracleCaller: ReleaseOracleCaller{contract: contract}, ReleaseOracleTransactor: ReleaseOracleTransactor{contract: contract}}, nil
}
// NewReleaseOracleCaller creates a new read-only instance of ReleaseOracle, bound to a specific deployed contract.
func NewReleaseOracleCaller(address common.Address, caller bind.ContractCaller) (*ReleaseOracleCaller, error) {
contract, err := bindReleaseOracle(address, caller, nil)
if err != nil {
return nil, err
}
return &ReleaseOracleCaller{contract: contract}, nil
}
// NewReleaseOracleTransactor creates a new write-only instance of ReleaseOracle, bound to a specific deployed contract.
func NewReleaseOracleTransactor(address common.Address, transactor bind.ContractTransactor) (*ReleaseOracleTransactor, error) {
contract, err := bindReleaseOracle(address, nil, transactor)
if err != nil {
return nil, err
}
return &ReleaseOracleTransactor{contract: contract}, nil
}
// bindReleaseOracle binds a generic wrapper to an already deployed contract.
func bindReleaseOracle(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor) (*bind.BoundContract, error) {
parsed, err := abi.JSON(strings.NewReader(ReleaseOracleABI))
if err != nil {
return nil, err
}
return bind.NewBoundContract(address, parsed, caller, transactor), nil
}
// Call invokes the (constant) contract method with params as input values and
// sets the output to result. The result type might be a single field for simple
// returns, a slice of interfaces for anonymous returns and a struct for named
// returns.
func (_ReleaseOracle *ReleaseOracleRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
return _ReleaseOracle.Contract.ReleaseOracleCaller.contract.Call(opts, result, method, params...)
}
// Transfer initiates a plain transaction to move funds to the contract, calling
// its default method if one is available.
func (_ReleaseOracle *ReleaseOracleRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
return _ReleaseOracle.Contract.ReleaseOracleTransactor.contract.Transfer(opts)
}
// Transact invokes the (paid) contract method with params as input values.
func (_ReleaseOracle *ReleaseOracleRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
return _ReleaseOracle.Contract.ReleaseOracleTransactor.contract.Transact(opts, method, params...)
}
// Call invokes the (constant) contract method with params as input values and
// sets the output to result. The result type might be a single field for simple
// returns, a slice of interfaces for anonymous returns and a struct for named
// returns.
func (_ReleaseOracle *ReleaseOracleCallerRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
return _ReleaseOracle.Contract.contract.Call(opts, result, method, params...)
}
// Transfer initiates a plain transaction to move funds to the contract, calling
// its default method if one is available.
func (_ReleaseOracle *ReleaseOracleTransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
return _ReleaseOracle.Contract.contract.Transfer(opts)
}
// Transact invokes the (paid) contract method with params as input values.
func (_ReleaseOracle *ReleaseOracleTransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
return _ReleaseOracle.Contract.contract.Transact(opts, method, params...)
}
// AuthProposals is a free data retrieval call binding the contract method 0xbf8ecf9c.
//
// Solidity: function authProposals() constant returns(address[])
func (_ReleaseOracle *ReleaseOracleCaller) AuthProposals(opts *bind.CallOpts) ([]common.Address, error) {
var (
ret0 = new([]common.Address)
)
out := ret0
err := _ReleaseOracle.contract.Call(opts, out, "authProposals")
return *ret0, err
}
// AuthProposals is a free data retrieval call binding the contract method 0xbf8ecf9c.
//
// Solidity: function authProposals() constant returns(address[])
func (_ReleaseOracle *ReleaseOracleSession) AuthProposals() ([]common.Address, error) {
return _ReleaseOracle.Contract.AuthProposals(&_ReleaseOracle.CallOpts)
}
// AuthProposals is a free data retrieval call binding the contract method 0xbf8ecf9c.
//
// Solidity: function authProposals() constant returns(address[])
func (_ReleaseOracle *ReleaseOracleCallerSession) AuthProposals() ([]common.Address, error) {
return _ReleaseOracle.Contract.AuthProposals(&_ReleaseOracle.CallOpts)
}
// AuthVotes is a free data retrieval call binding the contract method 0x64ed31fe.
//
// Solidity: function authVotes(user address) constant returns(promote address[], demote address[])
func (_ReleaseOracle *ReleaseOracleCaller) AuthVotes(opts *bind.CallOpts, user common.Address) (struct {
Promote []common.Address
Demote []common.Address
}, error) {
ret := new(struct {
Promote []common.Address
Demote []common.Address
})
out := ret
err := _ReleaseOracle.contract.Call(opts, out, "authVotes", user)
return *ret, err
}
// AuthVotes is a free data retrieval call binding the contract method 0x64ed31fe.
//
// Solidity: function authVotes(user address) constant returns(promote address[], demote address[])
func (_ReleaseOracle *ReleaseOracleSession) AuthVotes(user common.Address) (struct {
Promote []common.Address
Demote []common.Address
}, error) {
return _ReleaseOracle.Contract.AuthVotes(&_ReleaseOracle.CallOpts, user)
}
// AuthVotes is a free data retrieval call binding the contract method 0x64ed31fe.
//
// Solidity: function authVotes(user address) constant returns(promote address[], demote address[])
func (_ReleaseOracle *ReleaseOracleCallerSession) AuthVotes(user common.Address) (struct {
Promote []common.Address
Demote []common.Address
}, error) {
return _ReleaseOracle.Contract.AuthVotes(&_ReleaseOracle.CallOpts, user)
}
// CurrentVersion is a free data retrieval call binding the contract method 0x9d888e86.
//
// Solidity: function currentVersion() constant returns(major uint32, minor uint32, patch uint32, commit bytes20, time uint256)
func (_ReleaseOracle *ReleaseOracleCaller) CurrentVersion(opts *bind.CallOpts) (struct {
Major uint32
Minor uint32
Patch uint32
Commit [20]byte
Time *big.Int
}, error) {
ret := new(struct {
Major uint32
Minor uint32
Patch uint32
Commit [20]byte
Time *big.Int
})
out := ret
err := _ReleaseOracle.contract.Call(opts, out, "currentVersion")
return *ret, err
}
// CurrentVersion is a free data retrieval call binding the contract method 0x9d888e86.
//
// Solidity: function currentVersion() constant returns(major uint32, minor uint32, patch uint32, commit bytes20, time uint256)
func (_ReleaseOracle *ReleaseOracleSession) CurrentVersion() (struct {
Major uint32
Minor uint32
Patch uint32
Commit [20]byte
Time *big.Int
}, error) {
return _ReleaseOracle.Contract.CurrentVersion(&_ReleaseOracle.CallOpts)
}
// CurrentVersion is a free data retrieval call binding the contract method 0x9d888e86.
//
// Solidity: function currentVersion() constant returns(major uint32, minor uint32, patch uint32, commit bytes20, time uint256)
func (_ReleaseOracle *ReleaseOracleCallerSession) CurrentVersion() (struct {
Major uint32
Minor uint32
Patch uint32
Commit [20]byte
Time *big.Int
}, error) {
return _ReleaseOracle.Contract.CurrentVersion(&_ReleaseOracle.CallOpts)
}
// ProposedVersion is a free data retrieval call binding the contract method 0x26db7648.
//
// Solidity: function proposedVersion() constant returns(major uint32, minor uint32, patch uint32, commit bytes20, pass address[], fail address[])
func (_ReleaseOracle *ReleaseOracleCaller) ProposedVersion(opts *bind.CallOpts) (struct {
Major uint32
Minor uint32
Patch uint32
Commit [20]byte
Pass []common.Address
Fail []common.Address
}, error) {
ret := new(struct {
Major uint32
Minor uint32
Patch uint32
Commit [20]byte
Pass []common.Address
Fail []common.Address
})
out := ret
err := _ReleaseOracle.contract.Call(opts, out, "proposedVersion")
return *ret, err
}
// ProposedVersion is a free data retrieval call binding the contract method 0x26db7648.
//
// Solidity: function proposedVersion() constant returns(major uint32, minor uint32, patch uint32, commit bytes20, pass address[], fail address[])
func (_ReleaseOracle *ReleaseOracleSession) ProposedVersion() (struct {
Major uint32
Minor uint32
Patch uint32
Commit [20]byte
Pass []common.Address
Fail []common.Address
}, error) {
return _ReleaseOracle.Contract.ProposedVersion(&_ReleaseOracle.CallOpts)
}
// ProposedVersion is a free data retrieval call binding the contract method 0x26db7648.
//
// Solidity: function proposedVersion() constant returns(major uint32, minor uint32, patch uint32, commit bytes20, pass address[], fail address[])
func (_ReleaseOracle *ReleaseOracleCallerSession) ProposedVersion() (struct {
Major uint32
Minor uint32
Patch uint32
Commit [20]byte
Pass []common.Address
Fail []common.Address
}, error) {
return _ReleaseOracle.Contract.ProposedVersion(&_ReleaseOracle.CallOpts)
}
// Signers is a free data retrieval call binding the contract method 0x46f0975a.
//
// Solidity: function signers() constant returns(address[])
func (_ReleaseOracle *ReleaseOracleCaller) Signers(opts *bind.CallOpts) ([]common.Address, error) {
var (
ret0 = new([]common.Address)
)
out := ret0
err := _ReleaseOracle.contract.Call(opts, out, "signers")
return *ret0, err
}
// Signers is a free data retrieval call binding the contract method 0x46f0975a.
//
// Solidity: function signers() constant returns(address[])
func (_ReleaseOracle *ReleaseOracleSession) Signers() ([]common.Address, error) {
return _ReleaseOracle.Contract.Signers(&_ReleaseOracle.CallOpts)
}
// Signers is a free data retrieval call binding the contract method 0x46f0975a.
//
// Solidity: function signers() constant returns(address[])
func (_ReleaseOracle *ReleaseOracleCallerSession) Signers() ([]common.Address, error) {
return _ReleaseOracle.Contract.Signers(&_ReleaseOracle.CallOpts)
}
// Demote is a paid mutator transaction binding the contract method 0x5c3d005d.
//
// Solidity: function demote(user address) returns()
func (_ReleaseOracle *ReleaseOracleTransactor) Demote(opts *bind.TransactOpts, user common.Address) (*types.Transaction, error) {
return _ReleaseOracle.contract.Transact(opts, "demote", user)
}
// Demote is a paid mutator transaction binding the contract method 0x5c3d005d.
//
// Solidity: function demote(user address) returns()
func (_ReleaseOracle *ReleaseOracleSession) Demote(user common.Address) (*types.Transaction, error) {
return _ReleaseOracle.Contract.Demote(&_ReleaseOracle.TransactOpts, user)
}
// Demote is a paid mutator transaction binding the contract method 0x5c3d005d.
//
// Solidity: function demote(user address) returns()
func (_ReleaseOracle *ReleaseOracleTransactorSession) Demote(user common.Address) (*types.Transaction, error) {
return _ReleaseOracle.Contract.Demote(&_ReleaseOracle.TransactOpts, user)
}
// Nuke is a paid mutator transaction binding the contract method 0xbc8fbbf8.
//
// Solidity: function nuke() returns()
func (_ReleaseOracle *ReleaseOracleTransactor) Nuke(opts *bind.TransactOpts) (*types.Transaction, error) {
return _ReleaseOracle.contract.Transact(opts, "nuke")
}
// Nuke is a paid mutator transaction binding the contract method 0xbc8fbbf8.
//
// Solidity: function nuke() returns()
func (_ReleaseOracle *ReleaseOracleSession) Nuke() (*types.Transaction, error) {
return _ReleaseOracle.Contract.Nuke(&_ReleaseOracle.TransactOpts)
}
// Nuke is a paid mutator transaction binding the contract method 0xbc8fbbf8.
//
// Solidity: function nuke() returns()
func (_ReleaseOracle *ReleaseOracleTransactorSession) Nuke() (*types.Transaction, error) {
return _ReleaseOracle.Contract.Nuke(&_ReleaseOracle.TransactOpts)
}
// Promote is a paid mutator transaction binding the contract method 0xd0e0813a.
//
// Solidity: function promote(user address) returns()
func (_ReleaseOracle *ReleaseOracleTransactor) Promote(opts *bind.TransactOpts, user common.Address) (*types.Transaction, error) {
return _ReleaseOracle.contract.Transact(opts, "promote", user)
}
// Promote is a paid mutator transaction binding the contract method 0xd0e0813a.
//
// Solidity: function promote(user address) returns()
func (_ReleaseOracle *ReleaseOracleSession) Promote(user common.Address) (*types.Transaction, error) {
return _ReleaseOracle.Contract.Promote(&_ReleaseOracle.TransactOpts, user)
}
// Promote is a paid mutator transaction binding the contract method 0xd0e0813a.
//
// Solidity: function promote(user address) returns()
func (_ReleaseOracle *ReleaseOracleTransactorSession) Promote(user common.Address) (*types.Transaction, error) {
return _ReleaseOracle.Contract.Promote(&_ReleaseOracle.TransactOpts, user)
}
// Release is a paid mutator transaction binding the contract method 0xd67cbec9.
//
// Solidity: function release(major uint32, minor uint32, patch uint32, commit bytes20) returns()
func (_ReleaseOracle *ReleaseOracleTransactor) Release(opts *bind.TransactOpts, major uint32, minor uint32, patch uint32, commit [20]byte) (*types.Transaction, error) {
return _ReleaseOracle.contract.Transact(opts, "release", major, minor, patch, commit)
}
// Release is a paid mutator transaction binding the contract method 0xd67cbec9.
//
// Solidity: function release(major uint32, minor uint32, patch uint32, commit bytes20) returns()
func (_ReleaseOracle *ReleaseOracleSession) Release(major uint32, minor uint32, patch uint32, commit [20]byte) (*types.Transaction, error) {
return _ReleaseOracle.Contract.Release(&_ReleaseOracle.TransactOpts, major, minor, patch, commit)
}
// Release is a paid mutator transaction binding the contract method 0xd67cbec9.
//
// Solidity: function release(major uint32, minor uint32, patch uint32, commit bytes20) returns()
func (_ReleaseOracle *ReleaseOracleTransactorSession) Release(major uint32, minor uint32, patch uint32, commit [20]byte) (*types.Transaction, error) {
return _ReleaseOracle.Contract.Release(&_ReleaseOracle.TransactOpts, major, minor, patch, commit)
}
// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
// ReleaseOracle is an Ethereum contract to store the current and previous
// versions of the go-ethereum implementation. Its goal is to allow Geth to
// check for new releases automatically without the need to consult a central
// repository.
//
// The contract takes a vote based approach on both assigning authorised signers
// as well as signing off on new Geth releases.
//
// Note, when a signer is demoted, the currently pending release is auto-nuked.
// The reason is to prevent suprises where a demotion actually tilts the votes
// in favor of one voter party and pushing out a new release as a consequence of
// a simple demotion.
contract ReleaseOracle {
// Votes is an internal data structure to count votes on a specific proposal
struct Votes {
address[] pass; // List of signers voting to pass a proposal
address[] fail; // List of signers voting to fail a proposal
}
// Version is the version details of a particular Geth release
struct Version {
uint32 major; // Major version component of the release
uint32 minor; // Minor version component of the release
uint32 patch; // Patch version component of the release
bytes20 commit; // Git SHA1 commit hash of the release
uint64 time; // Timestamp of the release approval
Votes votes; // Votes that passed this release
}
// Oracle authorization details
mapping(address => bool) authorised; // Set of accounts allowed to vote on updating the contract
address[] voters; // List of addresses currently accepted as signers
// Various proposals being voted on
mapping(address => Votes) authProps; // Currently running user authorization proposals
address[] authPend; // List of addresses being voted on (map indexes)
Version verProp; // Currently proposed release being voted on
Version[] releases; // All the positively voted releases
// isSigner is a modifier to authorize contract transactions.
modifier isSigner() {
if (authorised[msg.sender]) {
_
}
}
// Constructor to assign the initial set of signers.
function ReleaseOracle(address[] signers) {
// If no signers were specified, assign the creator as the sole signer
if (signers.length == 0) {
authorised[msg.sender] = true;
voters.push(msg.sender);
return;
}
// Otherwise assign the individual signers one by one
for (uint i = 0; i < signers.length; i++) {
authorised[signers[i]] = true;
voters.push(signers[i]);
}
}
// signers is an accessor method to retrieve all te signers (public accessor
// generates an indexed one, not a retreive-all version).
function signers() constant returns(address[]) {
return voters;
}
// authProposals retrieves the list of addresses that authorization proposals
// are currently being voted on.
function authProposals() constant returns(address[]) {
return authPend;
}
// authVotes retrieves the current authorization votes for a particular user
// to promote him into the list of signers, or demote him from there.
function authVotes(address user) constant returns(address[] promote, address[] demote) {
return (authProps[user].pass, authProps[user].fail);
}
// currentVersion retrieves the semantic version, commit hash and release time
// of the currently votec active release.
function currentVersion() constant returns (uint32 major, uint32 minor, uint32 patch, bytes20 commit, uint time) {
if (releases.length == 0) {
return (0, 0, 0, 0, 0);
}
var release = releases[releases.length - 1];
return (release.major, release.minor, release.patch, release.commit, release.time);
}
// proposedVersion retrieves the semantic version, commit hash and the current
// votes for the next proposed release.
function proposedVersion() constant returns (uint32 major, uint32 minor, uint32 patch, bytes20 commit, address[] pass, address[] fail) {
return (verProp.major, verProp.minor, verProp.patch, verProp.commit, verProp.votes.pass, verProp.votes.fail);
}
// promote pitches in on a voting campaign to promote a new user to a signer
// position.
function promote(address user) {
updateSigner(user, true);
}
// demote pitches in on a voting campaign to demote an authorised user from
// its signer position.
function demote(address user) {
updateSigner(user, false);
}
// release votes for a particular version to be included as the next release.
function release(uint32 major, uint32 minor, uint32 patch, bytes20 commit) {
updateRelease(major, minor, patch, commit, true);
}
// nuke votes for the currently proposed version to not be included as the next
// release. Nuking doesn't require a specific version number for simplicity.
function nuke() {
updateRelease(0, 0, 0, 0, false);
}
// updateSigner marks a vote for changing the status of an Ethereum user, either
// for or against the user being an authorised signer.
function updateSigner(address user, bool authorize) internal isSigner {
// Gather the current votes and ensure we don't double vote
Votes votes = authProps[user];
for (uint i = 0; i < votes.pass.length; i++) {
if (votes.pass[i] == msg.sender) {
return;
}
}
for (i = 0; i < votes.fail.length; i++) {
if (votes.fail[i] == msg.sender) {
return;
}
}
// If no authorization proposal is open, add the user to the index for later lookups
if (votes.pass.length == 0 && votes.fail.length == 0) {
authPend.push(user);
}
// Cast the vote and return if the proposal cannot be resolved yet
if (authorize) {
votes.pass.push(msg.sender);
if (votes.pass.length <= voters.length / 2) {
return;
}
} else {
votes.fail.push(msg.sender);
if (votes.fail.length <= voters.length / 2) {
return;
}
}
// Proposal resolved in our favor, execute whatever we voted on
if (authorize && !authorised[user]) {
authorised[user] = true;
voters.push(user);
} else if (!authorize && authorised[user]) {
authorised[user] = false;
for (i = 0; i < voters.length; i++) {
if (voters[i] == user) {
voters[i] = voters[voters.length - 1];
voters.length--;
delete verProp; // Nuke any version proposal (no suprise releases!)
break;
}
}
}
// Finally delete the resolved proposal, index and garbage collect
delete authProps[user];
for (i = 0; i < authPend.length; i++) {
if (authPend[i] == user) {
authPend[i] = authPend[authPend.length - 1];
authPend.length--;
break;
}
}
}
// updateRelease votes for a particular version to be included as the next release,
// or for the currently proposed release to be nuked out.
function updateRelease(uint32 major, uint32 minor, uint32 patch, bytes20 commit, bool release) internal isSigner {
// Skip nuke votes if no proposal is pending
if (!release && verProp.votes.pass.length == 0) {
return;
}
// Mark a new release if no proposal is pending
if (verProp.votes.pass.length == 0) {
verProp.major = major;
verProp.minor = minor;
verProp.patch = patch;
verProp.commit = commit;
}
// Make sure positive votes match the current proposal
if (release && (verProp.major != major || verProp.minor != minor || verProp.patch != patch || verProp.commit != commit)) {
return;
}
// Gather the current votes and ensure we don't double vote
Votes votes = verProp.votes;
for (uint i = 0; i < votes.pass.length; i++) {
if (votes.pass[i] == msg.sender) {
return;
}
}
for (i = 0; i < votes.fail.length; i++) {
if (votes.fail[i] == msg.sender) {
return;
}
}
// Cast the vote and return if the proposal cannot be resolved yet
if (release) {
votes.pass.push(msg.sender);
if (votes.pass.length <= voters.length / 2) {
return;
}
} else {
votes.fail.push(msg.sender);
if (votes.fail.length <= voters.length / 2) {
return;
}
}
// Proposal resolved in our favor, execute whatever we voted on
if (release) {
verProp.time = uint64(now);
releases.push(verProp);
delete verProp;
} else {
delete verProp;
}
}
}
// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package release
import (
"crypto/ecdsa"
"math/big"
"testing"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/crypto"
)
// setupReleaseTest creates a blockchain simulator and deploys a version oracle
// contract for testing.
func setupReleaseTest(t *testing.T, prefund ...*ecdsa.PrivateKey) (*ecdsa.PrivateKey, *ReleaseOracle, *backends.SimulatedBackend) {
// Generate a new random account and a funded simulator
key, _ := crypto.GenerateKey()
auth := bind.NewKeyedTransactor(key)
accounts := []core.GenesisAccount{{Address: auth.From, Balance: big.NewInt(10000000000)}}
for _, key := range prefund {
accounts = append(accounts, core.GenesisAccount{Address: crypto.PubkeyToAddress(key.PublicKey), Balance: big.NewInt(10000000000)})
}
sim := backends.NewSimulatedBackend(accounts...)
// Deploy a version oracle contract, commit and return
_, _, oracle, err := DeployReleaseOracle(auth, sim, []common.Address{auth.From})
if err != nil {
t.Fatalf("Failed to deploy version contract: %v", err)
}
sim.Commit()
return key, oracle, sim
}
// Tests that the version contract can be deployed and the creator is assigned
// the sole authorized signer.
func TestContractCreation(t *testing.T) {
key, oracle, _ := setupReleaseTest(t)
owner := crypto.PubkeyToAddress(key.PublicKey)
signers, err := oracle.Signers(nil)
if err != nil {
t.Fatalf("Failed to retrieve list of signers: %v", err)
}
if len(signers) != 1 || signers[0] != owner {
t.Fatalf("Initial signer mismatch: have %v, want %v", signers, owner)
}
}
// Tests that subsequent signers can be promoted, each requiring half plus one
// votes for it to pass through.
func TestSignerPromotion(t *testing.T) {
// Prefund a few accounts to authorize with and create the oracle
keys := make([]*ecdsa.PrivateKey, 5)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
}
key, oracle, sim := setupReleaseTest(t, keys...)
// Gradually promote the keys, until all are authorized
keys = append([]*ecdsa.PrivateKey{key}, keys...)
for i := 1; i < len(keys); i++ {
// Check that no votes are accepted from the not yet authed user
if _, err := oracle.Promote(bind.NewKeyedTransactor(keys[i]), common.Address{}); err != nil {
t.Fatalf("Iter #%d: failed invalid promotion attempt: %v", i, err)
}
sim.Commit()
pend, err := oracle.AuthProposals(nil)
if err != nil {
t.Fatalf("Iter #%d: failed to retrieve active proposals: %v", i, err)
}
if len(pend) != 0 {
t.Fatalf("Iter #%d: proposal count mismatch: have %d, want 0", i, len(pend))
}
// Promote with half - 1 voters and check that the user's not yet authorized
for j := 0; j < i/2; j++ {
if _, err = oracle.Promote(bind.NewKeyedTransactor(keys[j]), crypto.PubkeyToAddress(keys[i].PublicKey)); err != nil {
t.Fatalf("Iter #%d: failed valid promotion attempt: %v", i, err)
}
}
sim.Commit()
signers, err := oracle.Signers(nil)
if err != nil {
t.Fatalf("Iter #%d: failed to retrieve list of signers: %v", i, err)
}
if len(signers) != i {
t.Fatalf("Iter #%d: signer count mismatch: have %v, want %v", i, len(signers), i)
}
// Promote with the last one needed to pass the promotion
if _, err = oracle.Promote(bind.NewKeyedTransactor(keys[i/2]), crypto.PubkeyToAddress(keys[i].PublicKey)); err != nil {
t.Fatalf("Iter #%d: failed valid promotion completion attempt: %v", i, err)
}
sim.Commit()
signers, err = oracle.Signers(nil)
if err != nil {
t.Fatalf("Iter #%d: failed to retrieve list of signers: %v", i, err)
}
if len(signers) != i+1 {
t.Fatalf("Iter #%d: signer count mismatch: have %v, want %v", i, len(signers), i+1)
}
}
}
// Tests that subsequent signers can be demoted, each requiring half plus one
// votes for it to pass through.
func TestSignerDemotion(t *testing.T) {
// Prefund a few accounts to authorize with and create the oracle
keys := make([]*ecdsa.PrivateKey, 5)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
}
key, oracle, sim := setupReleaseTest(t, keys...)
// Authorize all the keys as valid signers and verify cardinality
keys = append([]*ecdsa.PrivateKey{key}, keys...)
for i := 1; i < len(keys); i++ {
for j := 0; j <= i/2; j++ {
if _, err := oracle.Promote(bind.NewKeyedTransactor(keys[j]), crypto.PubkeyToAddress(keys[i].PublicKey)); err != nil {
t.Fatalf("Iter #%d: failed valid promotion attempt: %v", i, err)
}
}
sim.Commit()
}
signers, err := oracle.Signers(nil)
if err != nil {
t.Fatalf("Failed to retrieve list of signers: %v", err)
}
if len(signers) != len(keys) {
t.Fatalf("Signer count mismatch: have %v, want %v", len(signers), len(keys))
}
// Gradually demote users until we run out of signers
for i := len(keys) - 1; i >= 0; i-- {
// Demote with half - 1 voters and check that the user's not yet dropped
for j := 0; j < (i+1)/2; j++ {
if _, err = oracle.Demote(bind.NewKeyedTransactor(keys[j]), crypto.PubkeyToAddress(keys[i].PublicKey)); err != nil {
t.Fatalf("Iter #%d: failed valid demotion attempt: %v", len(keys)-i, err)
}
}
sim.Commit()
signers, err := oracle.Signers(nil)
if err != nil {
t.Fatalf("Iter #%d: failed to retrieve list of signers: %v", len(keys)-i, err)
}
if len(signers) != i+1 {
t.Fatalf("Iter #%d: signer count mismatch: have %v, want %v", len(keys)-i, len(signers), i+1)
}
// Demote with the last one needed to pass the demotion
if _, err = oracle.Demote(bind.NewKeyedTransactor(keys[(i+1)/2]), crypto.PubkeyToAddress(keys[i].PublicKey)); err != nil {
t.Fatalf("Iter #%d: failed valid demotion completion attempt: %v", i, err)
}
sim.Commit()
signers, err = oracle.Signers(nil)
if err != nil {
t.Fatalf("Iter #%d: failed to retrieve list of signers: %v", len(keys)-i, err)
}
if len(signers) != i {
t.Fatalf("Iter #%d: signer count mismatch: have %v, want %v", len(keys)-i, len(signers), i)
}
// Check that no votes are accepted from the already demoted users
if _, err = oracle.Promote(bind.NewKeyedTransactor(keys[i]), common.Address{}); err != nil {
t.Fatalf("Iter #%d: failed invalid promotion attempt: %v", i, err)
}
sim.Commit()
pend, err := oracle.AuthProposals(nil)
if err != nil {
t.Fatalf("Iter #%d: failed to retrieve active proposals: %v", i, err)
}
if len(pend) != 0 {
t.Fatalf("Iter #%d: proposal count mismatch: have %d, want 0", i, len(pend))
}
}
}
// Tests that new versions can be released, honouring both voting rights as well
// as the minimum required vote count.
func TestVersionRelease(t *testing.T) {
// Prefund a few accounts to authorize with and create the oracle
keys := make([]*ecdsa.PrivateKey, 5)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
}
key, oracle, sim := setupReleaseTest(t, keys...)
// Track the "current release"
var (
verMajor = uint32(0)
verMinor = uint32(0)
verPatch = uint32(0)
verCommit = [20]byte{}
)
// Gradually push releases, always requiring more signers than previously
keys = append([]*ecdsa.PrivateKey{key}, keys...)
for i := 1; i < len(keys); i++ {
// Check that no votes are accepted from the not yet authed user
if _, err := oracle.Release(bind.NewKeyedTransactor(keys[i]), 0, 0, 0, [20]byte{0}); err != nil {
t.Fatalf("Iter #%d: failed invalid release attempt: %v", i, err)
}
sim.Commit()
prop, err := oracle.ProposedVersion(nil)
if err != nil {
t.Fatalf("Iter #%d: failed to retrieve active proposal: %v", i, err)
}
if len(prop.Pass) != 0 {
t.Fatalf("Iter #%d: proposal vote count mismatch: have %d, want 0", i, len(prop.Pass))
}
// Authorize the user to make releases
for j := 0; j <= i/2; j++ {
if _, err = oracle.Promote(bind.NewKeyedTransactor(keys[j]), crypto.PubkeyToAddress(keys[i].PublicKey)); err != nil {
t.Fatalf("Iter #%d: failed valid promotion attempt: %v", i, err)
}
}
sim.Commit()
// Propose release with half voters and check that the release does not yet go through
for j := 0; j < (i+1)/2; j++ {
if _, err = oracle.Release(bind.NewKeyedTransactor(keys[j]), uint32(i), uint32(i+1), uint32(i+2), [20]byte{byte(i + 3)}); err != nil {
t.Fatalf("Iter #%d: failed valid release attempt: %v", i, err)
}
}
sim.Commit()
ver, err := oracle.CurrentVersion(nil)
if err != nil {
t.Fatalf("Iter #%d: failed to retrieve current version: %v", i, err)
}
if ver.Major != verMajor || ver.Minor != verMinor || ver.Patch != verPatch || ver.Commit != verCommit {
t.Fatalf("Iter #%d: version mismatch: have %d.%d.%d-%x, want %d.%d.%d-%x", i, ver.Major, ver.Minor, ver.Patch, ver.Commit, verMajor, verMinor, verPatch, verCommit)
}
// Pass the release and check that it became the next version
verMajor, verMinor, verPatch, verCommit = uint32(i), uint32(i+1), uint32(i+2), [20]byte{byte(i + 3)}
if _, err = oracle.Release(bind.NewKeyedTransactor(keys[(i+1)/2]), uint32(i), uint32(i+1), uint32(i+2), [20]byte{byte(i + 3)}); err != nil {
t.Fatalf("Iter #%d: failed valid release completion attempt: %v", i, err)
}
sim.Commit()
ver, err = oracle.CurrentVersion(nil)
if err != nil {
t.Fatalf("Iter #%d: failed to retrieve current version: %v", i, err)
}
if ver.Major != verMajor || ver.Minor != verMinor || ver.Patch != verPatch || ver.Commit != verCommit {
t.Fatalf("Iter #%d: version mismatch: have %d.%d.%d-%x, want %d.%d.%d-%x", i, ver.Major, ver.Minor, ver.Patch, ver.Commit, verMajor, verMinor, verPatch, verCommit)
}
}
}
// Tests that proposed versions can be nuked out of existence.
func TestVersionNuking(t *testing.T) {
// Prefund a few accounts to authorize with and create the oracle
keys := make([]*ecdsa.PrivateKey, 9)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
}
key, oracle, sim := setupReleaseTest(t, keys...)
// Authorize all the keys as valid signers
keys = append([]*ecdsa.PrivateKey{key}, keys...)
for i := 1; i < len(keys); i++ {
for j := 0; j <= i/2; j++ {
if _, err := oracle.Promote(bind.NewKeyedTransactor(keys[j]), crypto.PubkeyToAddress(keys[i].PublicKey)); err != nil {
t.Fatalf("Iter #%d: failed valid promotion attempt: %v", i, err)
}
}
sim.Commit()
}
// Propose releases with more and more keys, always retaining enough users to nuke the proposals
for i := 1; i < (len(keys)+1)/2; i++ {
// Propose release with an initial set of signers
for j := 0; j < i; j++ {
if _, err := oracle.Release(bind.NewKeyedTransactor(keys[j]), uint32(i), uint32(i+1), uint32(i+2), [20]byte{byte(i + 3)}); err != nil {
t.Fatalf("Iter #%d: failed valid proposal attempt: %v", i, err)
}
}
sim.Commit()
prop, err := oracle.ProposedVersion(nil)
if err != nil {
t.Fatalf("Iter #%d: failed to retrieve active proposal: %v", i, err)
}
if len(prop.Pass) != i {
t.Fatalf("Iter #%d: proposal vote count mismatch: have %d, want %d", i, len(prop.Pass), i)
}
// Nuke the release with half+1 voters
for j := i; j <= i+(len(keys)+1)/2; j++ {
if _, err := oracle.Nuke(bind.NewKeyedTransactor(keys[j])); err != nil {
t.Fatalf("Iter #%d: failed valid nuke attempt: %v", i, err)
}
}
sim.Commit()
prop, err = oracle.ProposedVersion(nil)
if err != nil {
t.Fatalf("Iter #%d: failed to retrieve active proposal: %v", i, err)
}
if len(prop.Pass) != 0 || len(prop.Fail) != 0 {
t.Fatalf("Iter #%d: proposal vote count mismatch: have %d/%d pass/fail, want 0/0", i, len(prop.Pass), len(prop.Fail))
}
}
}
// Tests that demoting a signer will auto-nuke the currently pending release.
func TestVersionAutoNuke(t *testing.T) {
// Prefund a few accounts to authorize with and create the oracle
keys := make([]*ecdsa.PrivateKey, 5)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
}
key, oracle, sim := setupReleaseTest(t, keys...)
// Authorize all the keys as valid signers
keys = append([]*ecdsa.PrivateKey{key}, keys...)
for i := 1; i < len(keys); i++ {
for j := 0; j <= i/2; j++ {
if _, err := oracle.Promote(bind.NewKeyedTransactor(keys[j]), crypto.PubkeyToAddress(keys[i].PublicKey)); err != nil {
t.Fatalf("Iter #%d: failed valid promotion attempt: %v", i, err)
}
}
sim.Commit()
}
// Make a release proposal and check it's existence
if _, err := oracle.Release(bind.NewKeyedTransactor(keys[0]), 1, 2, 3, [20]byte{4}); err != nil {
t.Fatalf("Failed valid proposal attempt: %v", err)
}
sim.Commit()
prop, err := oracle.ProposedVersion(nil)
if err != nil {
t.Fatalf("Failed to retrieve active proposal: %v", err)
}
if len(prop.Pass) != 1 {
t.Fatalf("Proposal vote count mismatch: have %d, want 1", len(prop.Pass))
}
// Demote a signer and check release proposal deletion
for i := 0; i <= len(keys)/2; i++ {
if _, err := oracle.Demote(bind.NewKeyedTransactor(keys[i]), crypto.PubkeyToAddress(keys[len(keys)-1].PublicKey)); err != nil {
t.Fatalf("Iter #%d: failed valid demotion attempt: %v", i, err)
}
}
sim.Commit()
prop, err = oracle.ProposedVersion(nil)
if err != nil {
t.Fatalf("Failed to retrieve active proposal: %v", err)
}
if len(prop.Pass) != 0 {
t.Fatalf("Proposal vote count mismatch: have %d, want 0", len(prop.Pass))
}
}
// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
//go:generate abigen --sol ./contract.sol --pkg release --out ./contract.go
package release
// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
// Package release contains the node service that tracks client releases.
package release
import (
"fmt"
"strings"
"time"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/rpc"
)
// Interval to check for new releases
const releaseRecheckInterval = time.Hour
// Config contains the configurations of the release service.
type Config struct {
Oracle common.Address // Ethereum address of the release oracle
Major uint32 // Major version component of the release
Minor uint32 // Minor version component of the release
Patch uint32 // Patch version component of the release
Commit [20]byte // Git SHA1 commit hash of the release
}
// ReleaseService is a node service that periodically checks the blockchain for
// newly released versions of the client being run and issues a warning to the
// user about it.
type ReleaseService struct {
config Config // Current version to check releases against
oracle *ReleaseOracle // Native binding to the release oracle contract
quit chan chan error // Quit channel to terminate the version checker
}
// NewReleaseService creates a new service to periodically check for new client
// releases and notify the user of such.
func NewReleaseService(ctx *node.ServiceContext, config Config) (node.Service, error) {
// Retrieve the Ethereum service dependency to access the blockchain
var ethereum *eth.Ethereum
if err := ctx.Service(&ethereum); err != nil {
return nil, err
}
// Construct the release service
contract, err := NewReleaseOracle(config.Oracle, eth.NewContractBackend(ethereum))
if err != nil {
return nil, err
}
return &ReleaseService{
config: config,
oracle: contract,
quit: make(chan chan error),
}, nil
}
// Protocols returns an empty list of P2P protocols as the release service does
// not have a networking component.
func (r *ReleaseService) Protocols() []p2p.Protocol { return nil }
// APIs returns an empty list of RPC descriptors as the release service does not
// expose any functioanlity to the outside world.
func (r *ReleaseService) APIs() []rpc.API { return nil }
// Start spawns the periodic version checker goroutine
func (r *ReleaseService) Start(server *p2p.Server) error {
go r.checker()
return nil
}
// Stop terminates all goroutines belonging to the service, blocking until they
// are all terminated.
func (r *ReleaseService) Stop() error {
errc := make(chan error)
r.quit <- errc
return <-errc
}
// checker runs indefinitely in the background, periodically checking for new
// client releases.
func (r *ReleaseService) checker() {
// Set up the timers to periodically check for releases
timer := time.NewTimer(0) // Immediately fire a version check
defer timer.Stop()
for {
select {
// If the time arrived, check for a new release
case <-timer.C:
// Rechedule the timer before continuing
timer.Reset(releaseRecheckInterval)
// Retrieve the current version, and handle missing contracts gracefully
version, err := r.oracle.CurrentVersion(nil)
if err != nil {
if err == bind.ErrNoCode {
glog.V(logger.Debug).Infof("Release oracle not found at %x", r.config.Oracle)
continue
}
glog.V(logger.Error).Infof("Failed to retrieve current release: %v", err)
continue
}
// Version was successfully retrieved, notify if newer than ours
if version.Major > r.config.Major ||
(version.Major == r.config.Major && version.Minor > r.config.Minor) ||
(version.Major == r.config.Major && version.Minor == r.config.Minor && version.Patch > r.config.Patch) {
warning := fmt.Sprintf("Client v%d.%d.%d-%x seems older than the latest upstream release v%d.%d.%d-%x",
r.config.Major, r.config.Minor, r.config.Patch, r.config.Commit[:4], version.Major, version.Minor, version.Patch, version.Commit[:4])
howtofix := fmt.Sprintf("Please check https://github.com/ethereum/go-ethereum/releases for new releases")
separator := strings.Repeat("-", len(warning))
glog.V(logger.Warn).Info(separator)
glog.V(logger.Warn).Info(warning)
glog.V(logger.Warn).Info(howtofix)
glog.V(logger.Warn).Info(separator)
} else {
glog.V(logger.Debug).Infof("Client v%d.%d.%d-%x seems up to date with upstream v%d.%d.%d-%x",
r.config.Major, r.config.Minor, r.config.Patch, r.config.Commit[:4], version.Major, version.Minor, version.Patch, version.Commit[:4])
}
// If termination was requested, return
case errc := <-r.quit:
errc <- nil
return
}
}
}
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