@polyfill-io-aot/builder/src/executors/WritePolyfillCombinationsExecutor.js

This is the builder module for polyfill-io-aot.

"use strict";
const Bluebird = require("bluebird");
const fs = require("fs-extra");
const noop = require("lodash/noop");
const BuildEvent_1 = require("../interfaces/BuildEvent");
const PoolExecutor_1 = require("../PoolExecutor");
const Serialiser_1 = require("../Serialiser");
const symbols_1 = require("../symbols");
/** @internal */
class WritePolyfillCombinationsExecutor extends PoolExecutor_1.PoolExecutor {
    execute() {
        this._ora.start(`Creating empty output dir ${this.conf.outDir}`);
        Bluebird.resolve(fs.emptyDir(this.conf.outDir)) //tslint:disable-line:no-floating-promises
            .then(() => {
            this._initPool(require.resolve('../workers/polyfill-string-generator'));
            this._ora.text = 'Generating bundles';
            return this.builder[symbols_1.COMBO_HASHES];
        })
            .map(this.mapper.bind(this))
            .then(() => {
            this.emit(BuildEvent_1.BuildEvent.GENERATE_BUNDLES_OK);
            this._ora.succeed('Bundles generated');
        }, (e) => {
            this._ora.fail(`Failed to generate bundles: ${this.formatError(e)}`);
            this.onError(e);
        })
            .finally(() => {
            this._terminate().catch(noop);
        });
    }
    mapper(hash) {
        const uaString = this.builder[symbols_1.COMBO_HASH_UA_MAP][hash];
        this.emit(BuildEvent_1.BuildEvent.GENERATE_BUNDLE_BEGIN, uaString);
        return this
            ._wrap(this._pool.exec('generate', [
            this.conf.excludes,
            JSON.stringify(this.builder[symbols_1.COMBO_MAP].get(hash), Serialiser_1.replacer),
            this.builder[symbols_1.COMBO_HASH_UA_MAP][hash],
            this.conf.unknown,
            this.conf.outDir,
            hash
        ]))
            .then(() => {
            this.emit(BuildEvent_1.BuildEvent.GENERATE_BUNDLE_OK, uaString);
            this._ora.text = `Generated bundle for ${uaString}`;
        })
            .catch((e) => {
            this.emit(BuildEvent_1.BuildEvent.GENERATE_BUNDLE_ERR, uaString, e);
            throw e;
        });
    }
}
module.exports = WritePolyfillCombinationsExecutor;
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