[NOD-516] Remove cmd/genesis. (#542)

cmd/genesis/genesis.go

@@ -1,91 +0,0 @@
-// Copyright (c) 2014-2016 The btcsuite developers
-// Use of this source code is governed by an ISC
-// license that can be found in the LICENSE file.
-
-package main
-
-import (
-	"encoding/hex"
-	"fmt"
-	"math/big"
-	"time"
-
-	"github.com/kaspanet/kaspad/blockdag"
-	"github.com/kaspanet/kaspad/dagconfig"
-	"github.com/kaspanet/kaspad/util"
-	"github.com/kaspanet/kaspad/util/daghash"
-	"github.com/kaspanet/kaspad/wire"
-)
-
-// solveGenesisBlock attempts to find some combination of a nonce and
-// current timestamp which makes the passed block hash to a value less than the
-// target difficulty.
-func solveGenesisBlock(block *wire.MsgBlock, powBits uint32, netName string) {
-	// Create some convenience variables.
-	header := &block.Header
-	targetDifficulty := util.CompactToBig(header.Bits)
-	header.Bits = powBits
-
-	// Search through the entire nonce range for a solution while
-	// periodically checking for early quit and stale block
-	// conditions along with updates to the speed monitor.
-	maxNonce := ^uint64(0) // 2^64 - 1
-	for {
-		header.Timestamp = time.Unix(time.Now().Unix(), 0)
-		for i := uint64(0); i <= maxNonce; i++ {
-			// Update the nonce and hash the block header. Each
-			// hash is actually a double sha256 (two hashes), so
-			// increment the number of hashes completed for each
-			// attempt accordingly.
-			header.Nonce = i
-			hash := header.BlockHash()
-
-			// The block is solved when the new block hash is less
-			// than the target difficulty. Yay!
-			if daghash.HashToBig(hash).Cmp(targetDifficulty) <= 0 {
-				fmt.Printf("\n\nGenesis block of %s is solved:\n", netName)
-				fmt.Printf("timestamp: 0x%x\n", header.Timestamp.Unix())
-				fmt.Printf("bits (difficulty): 0x%x\n", header.Bits)
-				fmt.Printf("nonce: 0x%x\n", header.Nonce)
-				fmt.Printf("hash: %v\n\n\n", hex.EncodeToString(hash[:]))
-				return
-			}
-		}
-	}
-}
-
-func validateGenesisBlock(genesisBlock *wire.MsgBlock, netName string) bool {
-	block := util.NewBlock(genesisBlock)
-	hashMerkleTree := blockdag.BuildHashMerkleTreeStore(block.Transactions())
-	calculatedHashMerkleRoot := hashMerkleTree.Root()
-	header := genesisBlock.Header
-	if !header.HashMerkleRoot.IsEqual(calculatedHashMerkleRoot) {
-		fmt.Printf("%s: genesis block hash merkle root is invalid - block "+
-			"header indicates %s, but calculated value is %s\n\n",
-			netName, hex.EncodeToString(header.HashMerkleRoot[:]),
-			hex.EncodeToString(calculatedHashMerkleRoot[:]))
-		return false
-	}
-	return true
-}
-
-func validateAndSolve(genesisBlock *wire.MsgBlock, powBits uint32, netName string) {
-	// Validate merkle root
-	if validateGenesisBlock(genesisBlock, netName) {
-		// Solve genesis block
-		solveGenesisBlock(genesisBlock, powBits, netName)
-	}
-}
-
-// main
-func main() {
-	bigOne := big.NewInt(1)
-
-	validateAndSolve(dagconfig.MainNetParams.GenesisBlock,
-		util.BigToCompact(new(big.Int).Sub(new(big.Int).Lsh(bigOne, 255), bigOne)),
-		"MainNet")
-
-	validateAndSolve(dagconfig.DevNetParams.GenesisBlock,
-		util.BigToCompact(new(big.Int).Sub(new(big.Int).Lsh(bigOne, 239), bigOne)),
-		"DevNet")
-}