Local file storage (#5763)

Co-authored-by: Tom Moor <tom.moor@gmail.com>

plugins/storage/server/utils.ts

@@ -0,0 +1,20 @@
+import { existsSync, mkdirSync } from "fs";
+import env from "@server/env";
+import Logger from "@server/logging/Logger";
+
+export const createRootDirForLocalStorage = () => {
+  if (env.FILE_STORAGE === "local") {
+    const rootDir = env.FILE_STORAGE_LOCAL_ROOT_DIR;
+    try {
+      if (!existsSync(rootDir)) {
+        mkdirSync(rootDir, { recursive: true });
+        Logger.debug("utils", `Created ${rootDir} for local storage`);
+      }
+    } catch (err) {
+      Logger.fatal(
+        "Couldn't create root dir for local storage of attachments",
+        err
+      );
+    }
+  }
+};