80 lines
2.1 KiB
JavaScript
80 lines
2.1 KiB
JavaScript
// @flow
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import fs from 'fs';
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import JSZip from 'jszip';
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import tmp from 'tmp';
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import * as Sentry from '@sentry/node';
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import { Attachment, Collection, Document } from '../models';
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import { getImageByKey } from './s3';
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async function addToArchive(zip, documents) {
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for (const doc of documents) {
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const document = await Document.findByPk(doc.id);
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let text = document.toMarkdown();
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const attachments = await Attachment.findAll({
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where: { documentId: document.id },
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});
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for (const attachment of attachments) {
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await addImageToArchive(zip, attachment.key);
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text = text.replace(attachment.redirectUrl, encodeURI(attachment.key));
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}
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zip.file(`${document.title || 'Untitled'}.md`, text);
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if (doc.children && doc.children.length) {
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const folder = zip.folder(document.title);
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await addToArchive(folder, doc.children);
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}
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}
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}
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async function addImageToArchive(zip, key) {
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try {
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const img = await getImageByKey(key);
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zip.file(key, img, { createFolders: true });
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} catch (err) {
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if (process.env.SENTRY_DSN) {
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Sentry.captureException(err);
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}
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// error during file retrieval
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console.error(err);
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}
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}
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async function archiveToPath(zip) {
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return new Promise((resolve, reject) => {
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tmp.file({ prefix: 'export-', postfix: '.zip' }, (err, path) => {
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if (err) return reject(err);
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zip
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.generateNodeStream({ type: 'nodebuffer', streamFiles: true })
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.pipe(fs.createWriteStream(path))
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.on('finish', () => resolve(path))
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.on('error', reject);
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});
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});
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}
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export async function archiveCollection(collection: Collection) {
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const zip = new JSZip();
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if (collection.documentStructure) {
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await addToArchive(zip, collection.documentStructure);
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}
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return archiveToPath(zip);
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}
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export async function archiveCollections(collections: Collection[]) {
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const zip = new JSZip();
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for (const collection of collections) {
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if (collection.documentStructure) {
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const folder = zip.folder(collection.name);
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await addToArchive(folder, collection.documentStructure);
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}
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}
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return archiveToPath(zip);
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}
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