313 lines
10 KiB
JavaScript
313 lines
10 KiB
JavaScript
let Web3 = require('web3');
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let Events = require('./events.js');
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let Logger = require('./logger.js');
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let Config = require('./config.js');
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let ContractsManager = require('../contracts/contracts.js');
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let DeployManager = require('../contracts/deploy_manager.js');
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let CodeGenerator = require('../contracts/code_generator.js');
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let ServicesMonitor = require('./services_monitor.js');
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let Pipeline = require('../pipeline/pipeline.js');
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let Watch = require('../pipeline/watch.js');
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let LibraryManager = require('../versions/library_manager.js');
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class Engine {
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constructor(options) {
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this.env = options.env;
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this.embarkConfig = options.embarkConfig;
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this.interceptLogs = options.interceptLogs;
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this.version = options.version;
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this.logFile = options.logFile;
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this.logLevel = options.logLevel;
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this.events = options.events;
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this.context = options.context;
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}
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init(_options) {
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let self = this;
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let options = _options || {};
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this.events = options.events || this.events || new Events();
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this.logger = options.logger || new Logger({logLevel: options.logLevel || this.logLevel || 'debug', events: this.events, logFile: this.logFile});
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this.config = new Config({env: this.env, logger: this.logger, events: this.events, context: this.context});
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this.config.loadConfigFiles({embarkConfig: this.embarkConfig, interceptLogs: this.interceptLogs});
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this.plugins = this.config.plugins;
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this.servicesMonitor = new ServicesMonitor({events: this.events, logger: this.logger});
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this.servicesMonitor.addCheck('embarkVersion', function (cb) {
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return cb({name: 'Embark ' + self.version, status: 'on'});
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}, 0);
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if (this.interceptLogs || this.interceptLogs === undefined) {
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this.doInterceptLogs();
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}
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}
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doInterceptLogs() {
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var self = this;
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let context = {};
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context.console = console;
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let normalizeInput = function(input) {
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let args = Object.values(input);
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if (args.length === 0) {
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return "";
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}
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if (args.length === 1) {
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if (Array.isArray(args[0])) { return args[0].join(','); }
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return args[0] || "";
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}
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return ('[' + args.map((x) => {
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if (x === null) { return "null"; }
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if (x === undefined) { return "undefined"; }
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if (Array.isArray(x)) { return x.join(','); }
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return x;
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}).toString() + ']');
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};
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context.console.log = function() {
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self.logger.info(normalizeInput(arguments));
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};
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context.console.warn = function() {
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self.logger.warn(normalizeInput(arguments));
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};
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context.console.info = function() {
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self.logger.info(normalizeInput(arguments));
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};
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context.console.debug = function() {
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// TODO: ue JSON.stringify
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self.logger.debug(normalizeInput(arguments));
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};
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context.console.trace = function() {
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self.logger.trace(normalizeInput(arguments));
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};
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context.console.dir = function() {
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self.logger.dir(normalizeInput(arguments));
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};
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}
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startMonitor() {
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let self = this;
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if (this.plugins) {
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// --------
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// TODO: this only works for services done on startup
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// --------
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let servicePlugins = this.plugins.getPluginsFor('serviceChecks');
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servicePlugins.forEach(function (plugin) {
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plugin.serviceChecks.forEach(function (pluginCheck) {
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self.servicesMonitor.addCheck(pluginCheck.checkName, pluginCheck.checkFn, pluginCheck.time);
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});
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});
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}
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this.servicesMonitor.startMonitor();
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}
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registerModule(moduleName, options) {
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this.plugins.loadInternalPlugin(moduleName, options);
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}
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startService(serviceName, _options) {
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let options = _options || {};
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let services = {
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"pipeline": this.pipelineService,
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"codeGenerator": this.codeGeneratorService,
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"deployment": this.deploymentService,
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"fileWatcher": this.fileWatchService,
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"webServer": this.webServerService,
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"ipfs": this.ipfsService,
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"web3": this.web3Service,
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"libraryManager": this.libraryManagerService,
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"swarm": this.swarmService
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};
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let service = services[serviceName];
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if (!service) {
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throw new Error("unknown service: " + serviceName);
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}
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// need to be careful with circular references due to passing the web3 object
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//this.logger.trace("calling: " + serviceName + "(" + JSON.stringify(options) + ")");
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return service.apply(this, [options]);
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}
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pipelineService(_options) {
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let self = this;
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this.events.emit("status", "Building Assets");
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let pipeline = new Pipeline({
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buildDir: this.config.buildDir,
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contractsFiles: this.config.contractsFiles,
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assetFiles: this.config.assetFiles,
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events: this.events,
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logger: this.logger,
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plugins: this.plugins
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});
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this.events.on('code-generator-ready', function () {
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self.events.request('code', function (abi, contractsJSON) {
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self.currentAbi = abi;
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self.contractsJSON = contractsJSON;
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pipeline.build(abi, contractsJSON, null, function() {
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if (self.watch) {
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self.watch.restart(); // Necessary because changing a file while it is writing can stop it from being watched
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}
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self.events.emit('outputDone');
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});
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});
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});
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}
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codeGeneratorService(_options) {
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let self = this;
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let generateCode = function (contractsManager) {
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let codeGenerator = new CodeGenerator({
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blockchainConfig: self.config.blockchainConfig,
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contractsConfig: self.config.contractsConfig,
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contractsManager: contractsManager,
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plugins: self.plugins,
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storageConfig: self.config.storageConfig,
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communicationConfig: self.config.communicationConfig,
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events: self.events
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});
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codeGenerator.listenToCommands();
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codeGenerator.buildEmbarkJS(function() {
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self.events.emit('code-generator-ready');
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});
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};
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this.events.on('contractsDeployed', generateCode);
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this.events.on('blockchainDisabled', generateCode);
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this.events.on('asset-changed', generateCode);
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}
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deploymentService(options) {
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let self = this;
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this.registerModule('solidity', {
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contractDirectories: self.config.contractDirectories
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});
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this.registerModule('vyper', {
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contractDirectories: self.config.contractDirectories
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});
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this.contractsManager = new ContractsManager({
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contractFiles: this.config.contractsFiles,
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contractsConfig: this.config.contractsConfig,
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logger: this.logger,
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plugins: this.plugins,
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gasLimit: false,
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events: this.events
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});
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this.deployManager = new DeployManager({
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web3: options.web3 || self.web3,
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trackContracts: options.trackContracts,
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config: this.config,
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logger: this.logger,
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plugins: this.plugins,
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events: this.events,
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contractsManager: this.contractsManager,
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onlyCompile: options.onlyCompile
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});
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this.events.on('file-event', function (fileType) {
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// TODO: still need to redeploy contracts because the original contracts
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// config is being corrupted
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if (fileType === 'asset') {
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self.events.emit('asset-changed', self.contractsManager);
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}
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// TODO: for now need to deploy on asset chanes as well
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// because the contractsManager config is corrupted after a deploy
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if (fileType === 'contract' || fileType === 'config') {
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self.config.reloadConfig();
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self.deployManager.deployContracts(function () {
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});
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}
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});
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}
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fileWatchService(_options) {
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this.events.emit("status", "Watching for changes");
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this.watch = new Watch({logger: this.logger, events: this.events});
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this.watch.start();
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}
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webServerService() {
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this.registerModule('webserver', {
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addCheck: this.servicesMonitor.addCheck.bind(this.servicesMonitor)
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});
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}
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ipfsService(_options) {
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this.registerModule('ipfs', {
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addCheck: this.servicesMonitor.addCheck.bind(this.servicesMonitor),
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storageConfig: this.config.storageConfig,
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host: _options.host,
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port: _options.port
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});
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}
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swarmService(_options) {
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this.registerModule('swarm', {
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addCheck: this.servicesMonitor.addCheck.bind(this.servicesMonitor),
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storageConfig: this.config.storageConfig,
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bzz: _options.bzz
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});
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}
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web3Service(options) {
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let self = this;
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this.web3 = options.web3;
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if (this.web3 === undefined) {
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this.web3 = new Web3();
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if (this.config.contractsConfig.deployment.type === "rpc") {
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let web3Endpoint = 'http://' + this.config.contractsConfig.deployment.host + ':' + this.config.contractsConfig.deployment.port;
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this.web3.setProvider(new this.web3.providers.HttpProvider(web3Endpoint));
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} else {
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throw new Error("contracts config error: unknown deployment type " + this.config.contractsConfig.deployment.type);
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}
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}
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self.servicesMonitor.addCheck('Ethereum', function (cb) {
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if (self.web3.currentProvider === undefined) {
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return cb({name: "No Blockchain node found", status: 'off'});
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}
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self.web3.eth.getAccounts(function(err, _accounts) {
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if (err) {
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return cb({name: "No Blockchain node found", status: 'off'});
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}
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// TODO: web3_clientVersion method is currently not implemented in web3.js 1.0
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self.web3._requestManager.send({method: 'web3_clientVersion', params: []}, (err, version) => {
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if (err) {
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return cb({name: "Ethereum node (version unknown)", status: 'on'});
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}
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if (version.indexOf("/") < 0) {
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return cb({name: version, status: 'on'});
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}
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let nodeName = version.split("/")[0];
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let versionNumber = version.split("/")[1].split("-")[0];
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let name = nodeName + " " + versionNumber + " (Ethereum)";
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return cb({name: name, status: 'on'});
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});
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});
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});
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this.registerModule('whisper', {
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addCheck: this.servicesMonitor.addCheck.bind(this.servicesMonitor),
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communicationConfig: this.config.communicationConfig,
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web3: this.web3
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});
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}
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libraryManagerService(_options) {
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this.libraryManager = new LibraryManager({
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plugins: this.plugins,
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config: this.config
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});
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}
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}
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module.exports = Engine;
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