Inital build

frontend/node_modules/tus-js-client/lib/node/fileReader.js

@@ -0,0 +1,34 @@
+import { ReadStream } from 'fs'
+import isStream from 'is-stream'
+
+import BufferSource from './sources/BufferSource.js'
+import getFileSource from './sources/FileSource.js'
+import StreamSource from './sources/StreamSource.js'
+
+export default class FileReader {
+  openFile(input, chunkSize) {
+    if (Buffer.isBuffer(input)) {
+      return Promise.resolve(new BufferSource(input))
+    }
+
+    if (input instanceof ReadStream && input.path != null) {
+      return getFileSource(input)
+    }
+
+    if (isStream.readable(input)) {
+      chunkSize = Number(chunkSize)
+      if (!Number.isFinite(chunkSize)) {
+        return Promise.reject(
+          new Error(
+            'cannot create source for stream without a finite value for the `chunkSize` option; specify a chunkSize to control the memory consumption',
+          ),
+        )
+      }
+      return Promise.resolve(new StreamSource(input))
+    }
+
+    return Promise.reject(
+      new Error('source object may only be an instance of Buffer or Readable in this environment'),
+    )
+  }
+}