mirror of https://github.com/embarklabs/embark.git
84 lines
3.3 KiB
JavaScript
84 lines
3.3 KiB
JavaScript
const path = require('path');
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const pkgUp = require('pkg-up');
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let shelljs = require('shelljs');
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let proxy = require('./proxy');
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const Ipc = require('../../core/ipc');
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const constants = require('../../constants.json');
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const {defaultHost, dockerHostSwap} = require('../../utils/host');
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const fs = require('../../core/fs.js');
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class Simulator {
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constructor(options) {
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this.blockchainConfig = options.blockchainConfig;
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this.logger = options.logger;
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}
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run(options) {
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let cmds = [];
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const ganache_main = require.resolve('ganache-cli', {paths: fs.embarkPath('node_modules')});
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const ganache_json = pkgUp.sync(path.dirname(ganache_main));
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const ganache_root = path.dirname(ganache_json);
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const ganache_bin = require(ganache_json).bin;
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let ganache;
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if (typeof ganache_bin === 'string') {
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ganache = path.join(ganache_root, ganache_bin);
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} else {
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ganache = path.join(ganache_root, ganache_bin['ganache-cli']);
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}
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let useProxy = this.blockchainConfig.proxy || false;
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let host = (dockerHostSwap(options.host || this.blockchainConfig.rpcHost) || defaultHost);
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let port = (options.port || this.blockchainConfig.rpcPort || 8545);
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cmds.push("-p " + (port + (useProxy ? constants.blockchain.servicePortOnProxy : 0)));
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cmds.push("-h " + host);
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cmds.push("-a " + (options.numAccounts || 10));
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cmds.push("-e " + (options.defaultBalance || 100));
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cmds.push("-l " + (options.gasLimit || 8000000));
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// adding mnemonic only if it is defined in the blockchainConfig or options
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let simulatorMnemonic = this.blockchainConfig.simulatorMnemonic || options.simulatorMnemonic;
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if (simulatorMnemonic) {
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cmds.push("--mnemonic \"" + (simulatorMnemonic) +"\"");
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}
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// as ganache-cli documentation explains, the simulatorAccounts configuration overrides a mnemonic
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let simulatorAccounts = this.blockchainConfig.simulatorAccounts || options.simulatorAccounts;
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if (simulatorAccounts && simulatorAccounts.length > 0) {
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let web3 = new (require('web3'))();
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let AccountParser = require('../../utils/accountParser.js');
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let parsedAccounts = AccountParser.parseAccountsConfig(simulatorAccounts, web3, this.logger);
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parsedAccounts.forEach((account) => {
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let cmd = '--account="' + account.privateKey + ','+account.hexBalance + '"';
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cmds.push(cmd);
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});
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}
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// adding blocktime only if it is defined in the blockchainConfig or options
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let simulatorBlocktime = this.blockchainConfig.simulatorBlocktime || options.simulatorBlocktime;
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if (simulatorBlocktime) {
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cmds.push("-b \"" + (simulatorBlocktime) +"\"");
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}
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// Setting up network id for simulator from blockchainConfig or options.
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// Otherwise ganache-cli would make random network id.
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let networkId = this.blockchainConfig.networkId || options.networkId;
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if (networkId) { // Don't handle networkId=="0" because it is not a valid networkId for ganache-cli.
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cmds.push("--networkId " + networkId);
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}
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const programName = 'ganache-cli';
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const program = ganache;
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console.log(`running: ${programName} ${cmds.join(' ')}`);
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shelljs.exec(`${program} ${cmds.join(' ')}`, {async : true});
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if(useProxy){
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let ipcObject = new Ipc({ipcRole: 'client'});
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proxy.serve(ipcObject, host, port, false);
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}
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}
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}
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module.exports = Simulator;
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