Function firefoxFetchAllMetadata

tasks/integrity.js:159–225

(noCache = false)

}

async function firefoxFetchAllMetadata(noCache = false) {
    if (noCache) {
        await rm(tmpDirParent, {force: true, recursive: true});
    }
    try {
        await mkdir(tmpDirParent, {recursive: true});
    } catch (e) {
        // No need to create already existing directory
    }

    const versions = await firefoxFetchAllReleases();
    log.ok(`Fetched release URLs (${versions.length})`);
    await writeFile(`${tmpDirParent}/firefox-index.json`, JSON.stringify(versions, null, 2));

    for (const {version, url, size} of versions) {
        const fileName = `${tmpDirParent}/firefox-${version}.xpi`;
        const dest = `./integrity/firefox/${version}`;
        const tempDest = `${tmpDirParent}/firefox-${version}`;

        try {
            const st = await stat(fileName);
            // Fast-fail path, it is actually never taken in practice
            if (st.size !== size) {
                throw new Error('Stored file had changed');
            }
            log.ok(`Found release file (Firefox, ${version})`);
        } catch {
            log.ok(`Fetching release file (${version})`);
            const file = await fetch(url);
            await writeFile(fileName, toBuffer(await file.arrayBuffer()));
            log.ok(`Wrote release file (${version})`);
        }

        await rm(tempDest, {force: true, recursive: true});
        await mkdir(tempDest, {recursive: true});
        await rm(dest, {force: true, recursive: true});
        await mkdir(dest, {recursive: true});

        const zip = new unzipper(fileName);
        zip.extractAllTo(tempDest);


        const manifestMf = await readFile(`${tempDest}/META-INF/manifest.mf`, {encoding: 'utf-8'});
        const {type, order} = firefoxExtractHashMetaInfOrder(manifestMf);

        const manifestJSON = await readFile(`${tempDest}/manifest.json`, {encoding: 'utf-8'});
        const manifest = getManifestJSONData(manifestJSON);

        const info = {
            type,
            manifest,
            order,
        };
        await writeFile(`${dest}/info.json`, `${JSON.stringify(info)}\n`);
        await copyFile(`${tempDest}/META-INF/mozilla.rsa`, `${dest}/mozilla.rsa`);
        try {
            await copyFile(`${tempDest}/META-INF/cose.sig`, `${dest}/cose.sig`);
        } catch (e) {