@atomist/automation-client/project/diff/DifferenceEngine.js

Atomist API for software low-level client

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const _ = require("lodash");
const GitHubRepoRef_1 = require("../../operations/common/GitHubRepoRef");
const GitCommandGitProject_1 = require("../git/GitCommandGitProject");
/**
 * Extracts fingerprints, diffs them, and invokes actions on Github shas that are being compared
 */
class DifferenceEngine {
    constructor(githubIssueAuth, chains) {
        this.githubIssueAuth = githubIssueAuth;
        this.chains = chains;
    }
    /**
     * Run configured diff chains for these shas
     * @param baseSha
     * @param headSha
     */
    run(baseSha, headSha) {
        const baseProjectPromise = this.cloneRepo(this.githubIssueAuth, baseSha);
        baseProjectPromise.then(project => {
            const baseFingerprintPromises = _.map(this.chains, c => c.extractor.extract(project));
            Promise.all(baseFingerprintPromises).then(baseFps => {
                const headProjectCheckout = project.checkout(headSha);
                headProjectCheckout.then(headProjectCheckoutSuccess => {
                    const headFingerprintPromises = _.map(this.chains, c => c.extractor.extract(project));
                    Promise.all(headFingerprintPromises).then(headFps => {
                        const diffs = this.chains.map((c, i) => c.differ.diff(baseFps[i], headFps[i]));
                        diffs.map((d, i) => this.chains[i].actions.forEach(a => a.invoke(baseFps[i], headFps[i], d)));
                    });
                });
            });
        });
    }
    cloneRepo(githubIssueAuth, sha) {
        return GitCommandGitProject_1.GitCommandGitProject.cloned({ token: githubIssueAuth.githubToken }, new GitHubRepoRef_1.GitHubRepoRef(githubIssueAuth.owner, githubIssueAuth.repo, githubIssueAuth.sha));
    }
}
exports.DifferenceEngine = DifferenceEngine;
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