progress

src/storage/index.ts

@@ -1,20 +1,22 @@
 import { Config, StorageType } from '../config'
 import { Local } from './local'
 
-export interface Storage {
-  read(path: string): Promise<Buffer>
-  write(path: string, data: Buffer): Promise<void>
-  exists(path: string): Promise<boolean>
-  delete(path: string): Promise<void>
+export abstract class Storage {
+  abstract read(path: string): Promise<Buffer>
+  abstract write(path: string, data: Buffer): Promise<void>
+  abstract exists(path: string): Promise<boolean>
+  abstract delete(path: string): Promise<void>
 
-  readStream(path: string): Promise<NodeJS.ReadableStream>
-  writeStream(path: string): Promise<NodeJS.WritableStream>
+  abstract readStream(path: string): Promise<NodeJS.ReadableStream>
+  abstract writeStream(path: string): Promise<NodeJS.WritableStream>
   // list(path: string): Promise<string[]>
+
+  abstract init(): Promise<void>
 }
 
 export let storage: Storage
 
-export function init() {
+export async function init() {
   if (!storage) {
     switch (Config.storage) {
       case StorageType.Local:
@@ -23,5 +25,6 @@ export function init() {
       default:
         throw new Error(`Unknown storage type: ${Config.storage}`)
     }
+    await storage.init()
   }
 }

src/storage/local.ts

@@ -1,5 +1,6 @@
 import { resolve, join } from 'path'
 import fs from 'fs'
+import { promisify } from 'util'
 
 import { Storage } from './'
 
@@ -8,6 +9,10 @@ export class Local implements Storage {
     this.root = resolve(root)
   }
 
+  async init() {
+    await promisify(fs.mkdir)(this.root, { recursive: true })
+  }
+
   read(path: string): Promise<Buffer> {
     const file = join(this.root, path)
     return new Promise((resolve, reject) => {