@rr0/cms/dist/search/SearchIndexStep.js

RR0 Content Management System (CMS)

import fs from "fs";
import { writeFile } from "@javarome/fileutil";
/**
 * Saves the index file collected by the SearchCommand.
 */
export class SearchIndexStep {
    /**
     * @param fileName The index file path
     * @param searchCommand The command that collected the pages info.
     */
    constructor(fileName, searchCommand) {
        this.fileName = fileName;
        this.searchCommand = searchCommand;
        this.encoding = "utf8";
    }
    /**
     * Write the search index file.
     *
     * @param context
     */
    execute(context) {
        const newIndex = this.searchCommand.index;
        let existingIndex;
        try {
            existingIndex = JSON.parse(fs.readFileSync(this.fileName, { encoding: this.encoding }));
            const newPages = newIndex.pages;
            const existingPages = existingIndex.pages;
            for (let newPage of newPages) {
                const alreadyIndexedPage = existingPages.find(existingPage => existingPage.url === newPage.url);
                if (alreadyIndexedPage) {
                    Object.assign(alreadyIndexedPage, newPage);
                }
                else {
                    existingPages.push(newPage);
                }
            }
            existingPages.sort((pageInfo1, pageInfo2) => pageInfo1.title > pageInfo2.title ? 1 : pageInfo1.title < pageInfo2.title ? -1 : 0);
        }
        catch (e) {
            if (e.errno !== -2) {
                throw e;
            }
            context.warn("Could not find", this.fileName, "Will create it");
            existingIndex = newIndex;
        }
        const indexSize = existingIndex.pages.length;
        context.setVar("indexSize", indexSize);
        context.log("Saving search index of", indexSize, "pages at", this.fileName);
        const indexJson = JSON.stringify(existingIndex);
        return writeFile(this.fileName, indexJson, "utf-8");
    }
}