github.com/sberex/go-sberex@v1.8.2-0.20181113200658-ed96ac38f7d7/contracts/chequebook/gencode.go (about)

     1  // This file is part of the go-sberex library. The go-sberex library is 
     2  // free software: you can redistribute it and/or modify it under the terms 
     3  // of the GNU Lesser General Public License as published by the Free 
     4  // Software Foundation, either version 3 of the License, or (at your option)
     5  // any later version.
     6  //
     7  // The go-sberex library is distributed in the hope that it will be useful, 
     8  // but WITHOUT ANY WARRANTY; without even the implied warranty of
     9  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser 
    10  // General Public License <http://www.gnu.org/licenses/> for more details.
    11  
    12  // +build none
    13  
    14  // This program generates contract/code.go, which contains the chequebook code
    15  // after deployment.
    16  package main
    17  
    18  import (
    19  	"fmt"
    20  	"io/ioutil"
    21  	"math/big"
    22  
    23  	"github.com/Sberex/go-sberex/accounts/abi/bind"
    24  	"github.com/Sberex/go-sberex/accounts/abi/bind/backends"
    25  	"github.com/Sberex/go-sberex/contracts/chequebook/contract"
    26  	"github.com/Sberex/go-sberex/core"
    27  	"github.com/Sberex/go-sberex/crypto"
    28  )
    29  
    30  var (
    31  	testKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
    32  	testAlloc  = core.GenesisAlloc{
    33  		crypto.PubkeyToAddress(testKey.PublicKey): {Balance: big.NewInt(500000000000)},
    34  	}
    35  )
    36  
    37  func main() {
    38  	backend := backends.NewSimulatedBackend(testAlloc)
    39  	auth := bind.NewKeyedTransactor(testKey)
    40  
    41  	// Deploy the contract, get the code.
    42  	addr, _, _, err := contract.DeployChequebook(auth, backend)
    43  	if err != nil {
    44  		panic(err)
    45  	}
    46  	backend.Commit()
    47  	code, err := backend.CodeAt(nil, addr, nil)
    48  	if err != nil {
    49  		panic(err)
    50  	}
    51  	if len(code) == 0 {
    52  		panic("empty code")
    53  	}
    54  
    55  	// Write the output file.
    56  	content := fmt.Sprintf(`package contract
    57  
    58  // ContractDeployedCode is used to detect suicides. This constant needs to be
    59  // updated when the contract code is changed.
    60  const ContractDeployedCode = "%#x"
    61  `, code)
    62  	if err := ioutil.WriteFile("contract/code.go", []byte(content), 0644); err != nil {
    63  		panic(err)
    64  	}
    65  }