embark-area-51/tasks/deploy.coffee

59 lines
2.6 KiB
CoffeeScript

module.exports = (grunt) ->
web3 = require('web3')
readYaml = require('read-yaml');
grunt.registerTask "deploy_contracts", "deploy code", (env) =>
blockchainConfig = readYaml.sync("config/blockchain.yml")
rpcHost = blockchainConfig[env || "development"].rpc_host
rpcPort = blockchainConfig[env || "development"].rpc_port
gasLimit = blockchainConfig[env || "development"].gas_limit || 100000
gasPrice = blockchainConfig[env || "development"].gas_price || 10000000000000
try
web3.setProvider(new web3.providers.HttpProvider("http://#{rpcHost}:#{rpcPort}"))
primaryAddress = web3.eth.coinbase
web3.eth.defaultAccount = primaryAddress
catch e
grunt.log.writeln("==== can't connect to #{rpcHost}:#{rpcPort} check if an ethereum node is running")
exit
grunt.log.writeln("address is : #{primaryAddress}")
result = "web3.setProvider(new web3.providers.HttpProvider('http://#{rpcHost}:#{rpcPort}'));"
result += "web3.eth.defaultAccount = web3.eth.accounts[0];"
contractFiles = grunt.file.expand(grunt.config.get("deploy.contracts"))
for contractFile in contractFiles
source = grunt.file.read(contractFile)
grunt.log.writeln("deploying #{contractFile}")
compiled_contracts = web3.eth.compile.solidity(source)
#TODO: refactor this into a common method
if compiled_contracts.info is undefined
for className, contract of compiled_contracts
contractAddress = web3.eth.sendTransaction({from: primaryAddress, data: contract.code, gas: gasLimit, gasPrice: gasPrice})
grunt.log.writeln("deployed #{className} at #{contractAddress}")
abi = JSON.stringify(contract.info.abiDefinition)
result += "var #{className}Abi = #{abi};"
result += "var #{className}Contract = web3.eth.contract(#{className}Abi);"
result += "var #{className} = #{className}Contract.at('#{contractAddress}');";
else
#for geth < 0.9.23
contract = compiled_contracts
contractAddress = web3.eth.sendTransaction({from: primaryAddress, data: contract.code, gas: gasLimit})
grunt.log.writeln("deployed at #{contractAddress}")
abi = JSON.stringify(contract.info.abiDefinition)
className = source.match(/contract (\w+)(?=\s[is|{])/g)[0].replace("contract ","")
result += "var #{className}Abi = #{abi};"
result += "var #{className}Contract = web3.eth.contract(#{className}Abi);"
result += "var #{className} = #{className}Contract.at('#{contractAddress}');";
destFile = grunt.config.get("deploy.dest")
grunt.file.write(destFile, result)