refactor: remove ObjectUplaoder and turn stream uploading

package.json

@@ -104,6 +104,9 @@
     "@babel/register": "^7.21.0",
     "@nodelib/fs.walk": "^1.2.8",
     "@types/async": "^3.2.20",
+    "@types/block-stream2": "^2.1.2",
+    "@types/chai": "^4.3.11",
+    "@types/chai-as-promised": "^7.1.8",
     "@types/lodash": "^4.14.194",
     "@types/mime-types": "^2.1.1",
     "@types/node": "^20.1.0",
@@ -115,6 +118,7 @@
     "babel-plugin-replace-import-extension": "^1.1.3",
     "babel-plugin-transform-replace-expressions": "^0.2.0",
     "chai": "^4.3.7",
+    "chai-as-promised": "^7.1.1",
     "dotenv": "^16.0.3",
     "eslint": "^8.40.0",
     "eslint-config-prettier": "^8.8.0",

src/internal/async.ts

@@ -0,0 +1,14 @@
+// promise helper for stdlib
+
+import * as fs from 'node:fs'
+import * as stream from 'node:stream'
+import { promisify } from 'node:util'
+
+// TODO: use "node:fs/promise" directly after we stop testing on nodejs 12
+export { promises as fsp } from 'node:fs'
+export const streamPromise = {
+  // node:stream/promises Added in: v15.0.0
+  pipeline: promisify(stream.pipeline),
+}
+
+export const fstat = promisify(fs.fstat)