72 lines
2.1 KiB
TypeScript
72 lines
2.1 KiB
TypeScript
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import { db as dbCore } from "@budibase/backend-core"
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import { budibaseTempDir } from "../../utilities/budibaseDir"
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import { DB_EXPORT_FILE, ATTACHMENT_DIR } from "./constants"
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import { uploadDirectory } from "../../utilities/fileSystem/utilities"
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import { ObjectStoreBuckets } from "../../constants"
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import { join } from "path"
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import fs from "fs"
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const uuid = require("uuid/v4")
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const tar = require("tar")
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type TemplateType = {
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file?: {
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type: string
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path: string
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}
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key?: string
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}
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/**
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* This function manages temporary template files which are stored by Koa.
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* @param {Object} template The template object retrieved from the Koa context object.
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* @returns {Object} Returns a fs read stream which can be loaded into the database.
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*/
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async function getTemplateStream(template: TemplateType) {
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if (template.file) {
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return fs.createReadStream(template.file.path)
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} else if (template.key) {
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const [type, name] = template.key.split("/")
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const tmpPath = await exports.downloadTemplate(type, name)
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return fs.createReadStream(join(tmpPath, name, "db", "dump.txt"))
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}
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}
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export async function importApp(
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appId: string,
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db: PouchDB.Database,
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template: TemplateType
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) {
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let prodAppId = dbCore.getProdAppID(appId)
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let dbStream: any
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if (template.file && template.file.type === "application/gzip") {
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const tmpPath = join(budibaseTempDir(), uuid())
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fs.mkdirSync(tmpPath)
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// extract the tarball
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tar.extract({
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sync: true,
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cwd: tmpPath,
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file: template.file.path,
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})
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const attachmentPath = join(tmpPath, ATTACHMENT_DIR)
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// have to handle object import
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if (fs.existsSync(attachmentPath)) {
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await uploadDirectory(
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ObjectStoreBuckets.APPS,
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attachmentPath,
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join(prodAppId, ATTACHMENT_DIR)
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)
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}
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dbStream = fs.createReadStream(join(tmpPath, DB_EXPORT_FILE))
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} else {
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dbStream = await getTemplateStream(template)
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}
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// @ts-ignore
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const { ok } = await db.load(dbStream)
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if (!ok) {
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throw "Error loading database dump from template."
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} else {
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// TODO: need to iterate over attachments and update their URLs
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}
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return ok
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}
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