1 files changed, 0 insertions, 164 deletions
diff --git a/contracts/release/release.go b/contracts/release/release.go
deleted file mode 100644
index 4442ce3e0..000000000
--- a/contracts/release/release.go
+++ /dev/null
@@ -1,164 +0,0 @@
-// Copyright 2015 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
-
-//go:generate abigen --sol ./contract.sol --pkg release --out ./contract.go
-
-import (
-	"context"
-	"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/internal/ethapi"
-	"github.com/ethereum/go-ethereum/les"
-	"github.com/ethereum/go-ethereum/log"
-	"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 apiBackend ethapi.Backend
-	var ethereum *eth.Ethereum
-	if err := ctx.Service(&ethereum); err == nil {
-		apiBackend = ethereum.ApiBackend
-	} else {
-		var ethereum *les.LightEthereum
-		if err := ctx.Service(&ethereum); err == nil {
-			apiBackend = ethereum.ApiBackend
-		} else {
-			return nil, err
-		}
-	}
-	// Construct the release service
-	contract, err := NewReleaseOracle(config.Oracle, eth.NewContractBackend(apiBackend))
-	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 {
-		case <-timer.C:
-			// Rechedule the timer before continuing
-			timer.Reset(releaseRecheckInterval)
-			r.checkVersion()
-		case errc := <-r.quit:
-			errc <- nil
-			return
-		}
-	}
-}
-
-func (r *ReleaseService) checkVersion() {
-	// Retrieve the current version, and handle missing contracts gracefully
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
-	opts := &bind.CallOpts{Context: ctx}
-	defer cancel()
-
-	version, err := r.oracle.CurrentVersion(opts)
-	if err != nil {
-		if err == bind.ErrNoCode {
-			log.Debug("Release oracle not found", "contract", r.config.Oracle)
-		} else if err != les.ErrNoPeers {
-			log.Error("Failed to retrieve current release", "err", err)
-		}
-		return
-	}
-	// 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))
-
-		log.Warn(separator)
-		log.Warn(warning)
-		log.Warn(howtofix)
-		log.Warn(separator)
-	} else {
-		log.Debug("Client seems up to date with upstream",
-			"local", fmt.Sprintf("v%d.%d.%d-%x", r.config.Major, r.config.Minor, r.config.Patch, r.config.Commit[:4]),
-			"upstream", fmt.Sprintf("v%d.%d.%d-%x", version.Major, version.Minor, version.Patch, version.Commit[:4]))
-	}
-}