let shelljs = require('shelljs'); class Simulator { constructor(options) { this.blockchainConfig = options.blockchainConfig; this.logger = options.logger; } run(options) { let cmds = []; const testrpc = shelljs.which('testrpc'); const ganache = shelljs.which('ganache-cli'); if (!testrpc && !ganache) { this.logger.warn(__('%s is not installed on your machine', 'Ganache CLI (TestRPC)')); this.logger.info(__('You can install it by running: %s', 'npm -g install ganache-cli')); process.exit(); } cmds.push("-p " + (options.port || this.blockchainConfig.rpcPort || 8545)); cmds.push("-h " + (options.host || this.blockchainConfig.rpcHost || 'localhost')); cmds.push("-a " + (options.numAccounts || 10)); cmds.push("-e " + (options.defaultBalance || 100)); cmds.push("-l " + (options.gasLimit || 8000000)); // adding mnemonic only if it is defined in the blockchainConfig or options let simulatorMnemonic = this.blockchainConfig.simulatorMnemonic || options.simulatorMnemonic; if (simulatorMnemonic) { cmds.push("--mnemonic \"" + (simulatorMnemonic) +"\""); } // adding blocktime only if it is defined in the blockchainConfig or options let simulatorBlocktime = this.blockchainConfig.simulatorBlocktime || options.simulatorBlocktime; if (simulatorBlocktime) { cmds.push("-b \"" + (simulatorBlocktime) +"\""); } const program = ganache ? 'ganache-cli' : 'testrpc'; shelljs.exec(`${program} ${cmds.join(' ')}`, {async : true}); } } module.exports = Simulator;