@ui5/task-adaptation/dist/cache/cacheManager.js

Custom task for ui5-builder which allows building UI5 Flexibility Adaptation Projects for SAP BTP, Cloud Foundry environment

import * as fs from "fs";
import * as path from "path";
import ResourceUtil from "../util/resourceUtil.js";
import tempFolder from "temp-dir";
export default class CacheManager {
    configuration;
    constructor(configuration) {
        this.configuration = configuration;
    }
    getTempFolder() {
        return path.join(tempFolder, this.getTempId());
    }
    async getFiles(fetchMetadata, fetchFiles) {
        const tempMetadata = this.readTempMetadata();
        const metadata = await fetchMetadata();
        if (this.isMetadataSame(tempMetadata, metadata)) {
            return this.readTemp();
        }
        else {
            const files = await fetchFiles();
            if (files?.size > 0) {
                await this.writeTemp(files, metadata);
            }
            return files;
        }
    }
    isMetadataSame(tempMetadata, metadata) {
        // TODO: Implement correct metadata comparision.
        return tempMetadata && metadata && tempMetadata.changedOn === metadata.changedOn;
    }
    readTempMetadata() {
        const tempFolder = this.getTempFolder();
        const filename = this.getMetadataFilename();
        const metadataPath = path.resolve(tempFolder, filename);
        if (fs.existsSync(metadataPath)) {
            return JSON.parse(fs.readFileSync(metadataPath, { encoding: "utf-8" }));
        }
    }
    writeTemp(files, metadata) {
        this.deleteTemp();
        const filesToCache = this.getFilesToCache(files, metadata);
        return ResourceUtil.write(this.getTempFolder(), filesToCache);
    }
    async readTemp() {
        const files = new Map();
        const tempFolder = this.getTempFolder();
        if (fs.existsSync(tempFolder)) {
            ResourceUtil.read(tempFolder, tempFolder, files, [this.getMetadataFilename()]);
        }
        return files;
    }
    deleteTemp() {
        fs.rmSync(this.getTempFolder(), { recursive: true, force: true });
    }
    normalizeId(id) {
        return id.replace(/\/\\/g, "_");
    }
    getFilesToCache(files, metadata) {
        const filename = this.getMetadataFilename();
        const filesClone = new Map([...files]);
        filesClone.set(filename, JSON.stringify(metadata));
        return filesClone;
    }
}
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