serverless-webpack/lib/run.js at v4.0.0 · hmmhmmhm/serverless-webpack

Repository navigation

'use strict';

const _ = require('lodash');

const BbPromise = require('bluebird');

const webpack = require('webpack');

module.exports = {

watch() {

const functionName = this.options.function;

this.serverless.cli.log(`Watch function ${functionName}...`);

const compiler = webpack(this.webpackConfig);

const watchOptions = {};

const usePolling = this.options['webpack-use-polling'];

if (usePolling) {

watchOptions.poll = _.isInteger(usePolling) ? usePolling : 3000;

this.serverless.cli.log(`Enabled polling (${watchOptions.poll} ms)`);

}

compiler.watch(watchOptions, (err /*, stats */) => {

if (err) {

throw err;

}

BbPromise.try(() => { // eslint-disable-line promise/catch-or-return, promise/no-promise-in-callback

if (this.originalServicePath) {

process.chdir(this.originalServicePath);

this.serverless.config.servicePath = this.originalServicePath;

}

if (!this.isWatching) {

this.isWatching = true;

return BbPromise.resolve();

}

this.serverless.cli.log('Sources changed.');

return this.serverless.pluginManager.spawn('invoke:local');

})

.then(() => this.serverless.cli.log('Waiting for changes ...'));

});

};