484 lines
17 KiB
JavaScript
484 lines
17 KiB
JavaScript
let toposort = require('toposort');
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let async = require('async');
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const cloneDeep = require('clone-deep');
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let utils = require('../../utils/utils.js');
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// TODO: create a contract object
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class ContractsManager {
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constructor(embark, options) {
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const self = this;
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this.logger = embark.logger;
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this.events = embark.events;
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this.contracts = {};
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this.contractDependencies = {};
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this.deployOnlyOnConfig = false;
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this.compileError = false;
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this.compileOnceOnly = options.compileOnceOnly;
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this.disableOptimizations = options.disableOptimizations;
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self.events.setCommandHandler('contracts:list', (cb) => {
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cb(self.compileError, self.listContracts());
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});
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self.events.setCommandHandler('contracts:all', (cb) => {
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cb(self.compileError, self.contracts);
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});
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self.events.setCommandHandler('contracts:dependencies', (cb) => {
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cb(self.compileError, self.contractDependencies);
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});
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self.events.setCommandHandler("contracts:contract", (contractName, cb) => {
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cb(self.getContract(contractName));
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});
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self.events.setCommandHandler("contracts:build", (configOnly, cb) => {
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self.deployOnlyOnConfig = configOnly; // temporary, should refactor
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self.build((err) => {
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cb(err);
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});
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});
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self.events.setCommandHandler("contracts:reset:dependencies", (cb) => {
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self.contractDependencies = {};
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cb();
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});
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self.events.on("deploy:contract:error", (_contract) => {
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self.events.emit('contractsState', self.contractsState());
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});
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self.events.on("deploy:contract:deployed", (_contract) => {
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self.events.emit('contractsState', self.contractsState());
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});
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self.events.on("deploy:contract:undeployed", (_contract) => {
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self.events.emit('contractsState', self.contractsState());
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});
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this.events.setCommandHandler('setDashboardState', () => {
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self.events.emit('contractsState', self.contractsState());
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});
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self.events.setCommandHandler("contracts:contract", (contractName, cb) => {
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cb(self.getContract(contractName));
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});
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self.events.setCommandHandler("contracts:all", (contractName, cb) => {
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let contracts = self.listContracts();
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let results = {};
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for (let className in contracts) {
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let contract = contracts[className];
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results[className] = {
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name: contract.className,
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deploy: contract.deploy,
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error: contract.error,
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address: contract.deployedAddress
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};
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}
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cb(results);
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});
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let plugin = this.plugins.createPlugin('deployment', {});
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plugin.registerAPICall(
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'get',
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'/embark-api/contract/:contractName',
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(req, res) => {
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self.events.request('contracts:contract', req.params.contractName, res.send.bind(res));
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}
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);
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plugin.registerAPICall(
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'get',
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'/embark-api/contracts',
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(req, res) => {
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self.events.request('contracts:all', null, res.send.bind(res));
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}
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);
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}
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build(done) {
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let self = this;
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self.contracts = {};
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let compilerOptions = {disableOptimizations: this.disableOptimizations};
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async.waterfall([
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function loadContractFiles(callback) {
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self.events.request("config:contractsFiles", (contractsFiles) => {
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self.contractsFiles = contractsFiles;
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callback();
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});
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},
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function loadContractConfigs(callback) {
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self.events.request("config:contractsConfig", (contractsConfig) => {
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self.contractsConfig = cloneDeep(contractsConfig);
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callback();
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});
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},
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function compileContracts(callback) {
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self.events.emit("status", __("Compiling..."));
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if (self.compileOnceOnly && self.compiledContracts && Object.keys(self.compiledContracts).length) {
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return callback();
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}
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self.events.request("compiler:contracts", self.contractsFiles, compilerOptions, function (err, compiledObject) {
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self.compiledContracts = compiledObject;
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callback(err);
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});
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},
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function prepareContractsFromConfig(callback) {
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self.events.emit("status", __("Building..."));
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let className, contract;
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for (className in self.contractsConfig.contracts) {
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contract = self.contractsConfig.contracts[className];
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contract.className = className;
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contract.args = contract.args || [];
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self.contracts[className] = contract;
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}
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callback();
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},
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function getGasPriceForNetwork(callback) {
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return callback(null, self.contractsConfig.gasPrice);
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},
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function prepareContractsFromCompilation(gasPrice, callback) {
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let className, compiledContract, contractConfig, contract;
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for (className in self.compiledContracts) {
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compiledContract = self.compiledContracts[className];
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contractConfig = self.contractsConfig.contracts[className];
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contract = self.contracts[className] || {className: className, args: []};
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contract.code = compiledContract.code;
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contract.runtimeBytecode = compiledContract.runtimeBytecode;
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contract.realRuntimeBytecode = (compiledContract.realRuntimeBytecode || compiledContract.runtimeBytecode);
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contract.swarmHash = compiledContract.swarmHash;
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contract.gasEstimates = compiledContract.gasEstimates;
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contract.functionHashes = compiledContract.functionHashes;
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contract.abiDefinition = compiledContract.abiDefinition;
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contract.filename = compiledContract.filename;
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contract.originalFilename = compiledContract.originalFilename || ("contracts/" + contract.filename);
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contract.gas = (contractConfig && contractConfig.gas) || self.contractsConfig.gas || 'auto';
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contract.gasPrice = contract.gasPrice || gasPrice;
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contract.type = 'file';
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contract.className = className;
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self.contracts[className] = contract;
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}
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callback();
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},
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function setDeployIntention(callback) {
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let className, contract;
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for (className in self.contracts) {
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contract = self.contracts[className];
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contract.deploy = (contract.deploy === undefined) || contract.deploy;
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if (self.deployOnlyOnConfig && !self.contractsConfig.contracts[className]) {
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contract.deploy = false;
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}
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if (contract.code === "") {
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const message = __("assuming %s to be an interface", className);
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if (contract.silent) {
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self.logger.trace(message);
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} else {
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self.logger.info(message);
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}
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contract.deploy = false;
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}
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}
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callback();
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},
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/*eslint complexity: ["error", 11]*/
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function dealWithSpecialConfigs(callback) {
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let className, contract, parentContractName, parentContract;
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let dictionary = Object.keys(self.contracts);
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for (className in self.contracts) {
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contract = self.contracts[className];
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if (contract.instanceOf === undefined) {
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continue;
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}
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parentContractName = contract.instanceOf;
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parentContract = self.contracts[parentContractName];
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if (parentContract === className) {
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self.logger.error(__("%s : instanceOf is set to itself", className));
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continue;
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}
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if (parentContract === undefined) {
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self.logger.error(__("{{className}}: couldn't find instanceOf contract {{parentContractName}}", {className: className, parentContractName: parentContractName}));
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let suggestion = utils.proposeAlternative(parentContractName, dictionary, [className, parentContractName]);
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if (suggestion) {
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self.logger.warn(__('did you mean "%s"?', suggestion));
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}
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continue;
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}
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if (parentContract.args && parentContract.args.length > 0 && ((contract.args && contract.args.length === 0) || contract.args === undefined)) {
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contract.args = parentContract.args;
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}
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if (contract.code !== undefined) {
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self.logger.error(__("{{className}} has code associated to it but it's configured as an instanceOf {{parentContractName}}", {className: className, parentContractName: parentContractName}));
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}
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contract.code = parentContract.code;
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contract.runtimeBytecode = parentContract.runtimeBytecode;
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contract.realRuntimeBytecode = (parentContract.realRuntimeBytecode || parentContract.runtimeBytecode);
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contract.gasEstimates = parentContract.gasEstimates;
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contract.functionHashes = parentContract.functionHashes;
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contract.abiDefinition = parentContract.abiDefinition;
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contract.gas = contract.gas || parentContract.gas;
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contract.gasPrice = contract.gasPrice || parentContract.gasPrice;
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contract.type = 'instance';
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}
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callback();
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},
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function removeContractsWithNoCode(callback) {
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let className, contract;
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let dictionary = Object.keys(self.contracts);
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for (className in self.contracts) {
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contract = self.contracts[className];
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if (contract.code === undefined) {
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self.logger.error(__("%s has no code associated", className));
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let suggestion = utils.proposeAlternative(className, dictionary, [className]);
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if (suggestion) {
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self.logger.warn(__('did you mean "%s"?', suggestion));
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}
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delete self.contracts[className];
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}
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}
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self.logger.trace(self.contracts);
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callback();
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},
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// TODO: needs refactoring, has gotten too complex
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/*eslint complexity: ["error", 16]*/
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/*eslint max-depth: ["error", 16]*/
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function determineDependencies(callback) {
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let className, contract;
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for (className in self.contracts) {
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contract = self.contracts[className];
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// look in code for dependencies
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let libMatches = (contract.code.match(/:(.*?)(?=_)/g) || []);
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for (let match of libMatches) {
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self.contractDependencies[className] = self.contractDependencies[className] || [];
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self.contractDependencies[className].push(match.substr(1));
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}
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// look in arguments for dependencies
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if (contract.args === []) continue;
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let ref;
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if (Array.isArray(contract.args)) {
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ref = contract.args;
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} else {
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let keys = Object.keys(contract.args);
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ref = keys.map((k) => contract.args[k]).filter((x) => !x);
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}
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for (let j = 0; j < ref.length; j++) {
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let arg = ref[j];
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if (arg[0] === "$" && !arg.startsWith('$accounts')) {
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self.contractDependencies[className] = self.contractDependencies[className] || [];
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self.contractDependencies[className].push(arg.substr(1));
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self.checkDependency(className, arg.substr(1));
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}
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if (Array.isArray(arg)) {
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for (let sub_arg of arg) {
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if (sub_arg[0] === "$" && !sub_arg.startsWith('$accounts')) {
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self.contractDependencies[className] = self.contractDependencies[className] || [];
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self.contractDependencies[className].push(sub_arg.substr(1));
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self.checkDependency(className, sub_arg.substr(1));
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}
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}
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}
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}
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// look in onDeploy for dependencies
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if (contract.onDeploy !== [] && contract.onDeploy !== undefined) {
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let regex = /\$\w+/g;
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contract.onDeploy.map((cmd) => {
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if (cmd.indexOf('$accounts') > -1) {
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return;
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}
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cmd.replace(regex, (match) => {
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self.contractDependencies[className] = self.contractDependencies[className] || [];
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self.contractDependencies[className].push(match.substr(1));
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});
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});
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}
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// Remove duplicates
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if (self.contractDependencies[className]) {
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const o = {};
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self.contractDependencies[className].forEach(function (e) {
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o[e] = true;
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});
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self.contractDependencies[className] = Object.keys(o);
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}
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}
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callback();
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},
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function setDependencyCount(callback) {
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let className;
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function getDependencyCount(contractName, cycleDetector) {
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if (!self.contracts[contractName]) {
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return 0;
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}
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if (self.contracts[contractName].dependencyCount || self.contracts[contractName].dependencyCount === 0) {
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// Already have that count
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return self.contracts[contractName].dependencyCount;
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}
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if (!self.contractDependencies[contractName] || !self.contractDependencies[contractName].length) {
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self.contracts[contractName].dependencyCount = 0;
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return 0;
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}
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let total = self.contractDependencies[contractName].length;
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self.contractDependencies[contractName].some(dependencyName => {
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if (cycleDetector.indexOf(dependencyName) > -1) {
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// We are in a cycle because of the dependency, set both to Infinity
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self.contracts[dependencyName].dependencyCount = Infinity;
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total = Infinity;
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return true;
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}
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cycleDetector.push(dependencyName);
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total += getDependencyCount(dependencyName, cycleDetector);
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});
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self.contracts[contractName].dependencyCount = total;
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return total;
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}
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let cycleDetector;
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for (className in self.contracts) {
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cycleDetector = [];
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getDependencyCount(className, cycleDetector);
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}
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callback();
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}
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], function (err) {
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if (err) {
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self.compileError = true;
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self.events.emit("status", __("Compile/Build error"));
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self.events.emit("outputError", __("Error building Dapp, please check console"));
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self.logger.error(__("Error Compiling/Building contracts: ") + err);
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}else{
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self.compileError = false;
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}
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self.logger.trace("finished".underline);
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done(err, self);
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});
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}
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checkDependency(className, dependencyName) {
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if (!this.contractDependencies[className]) {
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return;
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}
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if (!this.contracts[dependencyName]) {
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this.logger.warn(__('{{className}} has a dependency on {{dependencyName}}', {className, dependencyName}) +
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__(', but it is not present in the contracts'));
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return;
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}
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if (!this.contracts[dependencyName].deploy) {
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this.logger.warn(__('{{className}} has a dependency on {{dependencyName}}', {className, dependencyName}) +
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__(', but it is not set to deploy. It could be an interface.'));
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}
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}
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getContract(className) {
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return this.contracts[className];
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}
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sortContracts(contractList) {
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let converted_dependencies = [], i;
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for (let contract in this.contractDependencies) {
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let dependencies = this.contractDependencies[contract];
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for (i = 0; i < dependencies.length; i++) {
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converted_dependencies.push([contract, dependencies[i]]);
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}
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}
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let orderedDependencies;
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try {
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orderedDependencies = toposort(converted_dependencies.filter((x) => x[0] !== x[1])).reverse();
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} catch(e) {
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this.logger.error((__("Error: ") + e.message).red);
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this.logger.error(__("there are two or more contracts that depend on each other in a cyclic manner").bold.red);
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this.logger.error(__("Embark couldn't determine which one to deploy first").red);
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throw new Error("CyclicDependencyError");
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//process.exit(0);
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}
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return contractList.sort(function (a, b) {
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let order_a = orderedDependencies.indexOf(a.className);
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let order_b = orderedDependencies.indexOf(b.className);
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return order_a - order_b;
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});
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}
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// TODO: should be built contracts
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listContracts() {
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let contracts = [];
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for (let className in this.contracts) {
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let contract = this.contracts[className];
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contracts.push(contract);
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}
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return this.sortContracts(contracts);
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}
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contractsState() {
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let data = [];
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for (let className in this.contracts) {
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let contract = this.contracts[className];
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if (contract.silent) {
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continue;
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}
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let contractData;
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if (contract.deploy === false) {
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contractData = [
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className.green,
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__('Interface or set to not deploy').green,
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"\t\tn/a".green
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];
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} else if (contract.error) {
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contractData = [
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className.green,
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(contract.error).split("\n")[0].replace(/Error: /g, '').substring(0, 32).red,
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'\t\tError'.red
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];
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} else {
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contractData = [
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className.green,
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(contract.deployedAddress || '...').green,
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((contract.deployedAddress !== undefined) ? ("\t\t" + __("Deployed")).green : ("\t\t" + __("Pending")).magenta)
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];
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}
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data.push(contractData);
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}
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return data;
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}
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}
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module.exports = ContractsManager;
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