github.com/arieschain/arieschain@v0.0.0-20191023063405-37c074544356/contracts/chequebook/gencode.go (about)

     1  // +build none
     2  
     3  // This program generates contract/code.go, which contains the chequebook code
     4  // after deployment.
     5  package main
     6  
     7  import (
     8  	"fmt"
     9  	"io/ioutil"
    10  	"math/big"
    11  
    12  	"github.com/quickchainproject/quickchain/accounts/abi/bind"
    13  	"github.com/quickchainproject/quickchain/accounts/abi/bind/backends"
    14  	"github.com/quickchainproject/quickchain/contracts/chequebook/contract"
    15  	"github.com/quickchainproject/quickchain/core"
    16  	"github.com/quickchainproject/quickchain/crypto"
    17  )
    18  
    19  var (
    20  	testKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
    21  	testAlloc  = core.GenesisAlloc{
    22  		crypto.PubkeyToAddress(testKey.PublicKey): {Balance: big.NewInt(500000000000)},
    23  	}
    24  )
    25  
    26  func main() {
    27  	backend := backends.NewSimulatedBackend(testAlloc)
    28  	auth := bind.NewKeyedTransactor(testKey)
    29  
    30  	// Deploy the contract, get the code.
    31  	addr, _, _, err := contract.DeployChequebook(auth, backend)
    32  	if err != nil {
    33  		panic(err)
    34  	}
    35  	backend.Commit()
    36  	code, err := backend.CodeAt(nil, addr, nil)
    37  	if err != nil {
    38  		panic(err)
    39  	}
    40  	if len(code) == 0 {
    41  		panic("empty code")
    42  	}
    43  
    44  	// Write the output file.
    45  	content := fmt.Sprintf(`package contract
    46  
    47  // ContractDeployedCode is used to detect suicides. This constant needs to be
    48  // updated when the contract code is changed.
    49  const ContractDeployedCode = "%#x"
    50  `, code)
    51  	if err := ioutil.WriteFile("contract/code.go", []byte(content), 0644); err != nil {
    52  		panic(err)
    53  	}
    54  }