@atomist/sdm/lib/api/mapping/support/PushRules.js

Atomist Software Delivery Machine SDK

"use strict";
/*
 * Copyright © 2019 Atomist, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.PushRules = void 0;
const logger_1 = require("@atomist/automation-client/lib/util/logger");
const GoalSetter_1 = require("../GoalSetter");
/**
 * Use to execute a rule set for any push to resolve to an object.
 * The value from the first matching rule will be used.
 */
class PushRules {
    /**
     * Return all possible values
     * @param {string} name
     * @param {Array<PushMapping<V>>} rules Array of rules.
     * Passing an empty array will result in an instance that always maps to undefined,
     * and is not an error.
     */
    constructor(name, rules = []) {
        this.name = name;
        this.rules = rules;
        this.choices = [];
        if (!name) {
            throw new Error("PushRule name must be specified");
        }
        this.add(rules);
    }
    get structure() {
        return {
            components: this.rules,
            compositionStyle: GoalSetter_1.GoalSettingCompositionStyle.FirstMatch,
        };
    }
    /**
     * Return a PushRules with a subset of the rules of this one
     * @param {(p: PushMapping<V>) => boolean} predicate
     * @return {PushRules<V>}
     */
    filter(predicate) {
        return new PushRules("name-", this.choices.filter(predicate));
    }
    add(rules) {
        this.choices = this.choices.concat(rules);
    }
    async mapping(pi) {
        for (const pc of this.choices) {
            const found = await pc.mapping(pi);
            logger_1.logger.debug("Eligible PushRule named %s returned choice %j", pc.name, found);
            if (found) {
                logger_1.logger.debug("PushRules '%s': Value for push on %j is %j", this.name, pi.id, found);
                return found;
            }
            else if (found === null) {
                return undefined;
            }
        }
        return undefined;
    }
}
exports.PushRules = PushRules;
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