mirror of https://github.com/embarklabs/embark.git
70 lines
2.2 KiB
JavaScript
70 lines
2.2 KiB
JavaScript
const ProcessLauncher = require('../../core/processes/processLauncher');
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const utils = require('../../utils/utils.js');
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const constants = require('../../constants');
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class BlockchainProcessLauncher {
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constructor (options) {
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this.events = options.events;
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this.logger = options.logger;
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this.normalizeInput = options.normalizeInput;
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this.blockchainConfig = options.blockchainConfig;
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this.locale = options.locale;
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this.isDev = options.isDev;
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this.client = options.client;
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}
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processEnded(code) {
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this.logger.error(__('Blockchain process ended before the end of this process. Try running blockchain in a separate process using `$ embark blockchain`. Code: %s', code));
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}
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startBlockchainNode() {
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this.logger.info(__('Starting Blockchain node in another process').cyan);
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this.blockchainProcess = new ProcessLauncher({
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modulePath: utils.joinPath(__dirname, './blockchainProcess.js'),
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logger: this.logger,
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events: this.events,
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silent: this.logger.logLevel !== 'trace',
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exitCallback: this.processEnded.bind(this)
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});
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this.blockchainProcess.send({
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action: constants.blockchain.init, options: {
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blockchainConfig: this.blockchainConfig,
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client: this.client,
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env: this.env,
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isDev: this.isDev,
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locale: this.locale
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}
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});
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this.blockchainProcess.once('result', constants.blockchain.blockchainReady, () => {
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this.logger.info(__('Blockchain node is ready').cyan);
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this.events.emit(constants.blockchain.blockchainReady);
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});
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this.blockchainProcess.once('result', constants.blockchain.blockchainExit, () => {
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// telle everyone that our blockchain process (ie geth) died
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this.events.emit(constants.blockchain.blockchainExit);
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// then kill off the blockchain process
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this.blockchainProcess.kill();
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});
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this.events.on('logs:ethereum:enable', () => {
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this.blockchainProcess.silent = false;
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});
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this.events.on('logs:ethereum:disable', () => {
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this.blockchainProcess.silent = true;
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});
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this.events.on('exit', () => {
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this.blockchainProcess.send('exit');
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});
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}
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}
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module.exports = BlockchainProcessLauncher;
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