Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 40 insertions, 0 deletions

diff --git a/src/arrow/js/bin/file-to-stream.js b/src/arrow/js/bin/file-to-stream.js
new file mode 100755
index 000000000..090cd0b0e
--- /dev/null
+++ b/src/arrow/js/bin/file-to-stream.js
@@ -0,0 +1,40 @@
+#! /usr/bin/env node
+
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+// @ts-check
+
+const fs = require('fs');
+const path = require('path');
+const eos = require('util').promisify(require('stream').finished);
+const extension = process.env.ARROW_JS_DEBUG === 'src' ? '.ts' : '';
+const { RecordBatchReader, RecordBatchStreamWriter } = require(`../index${extension}`);
+
+(async () => {
+
+    const readable = process.argv.length < 3 ? process.stdin : fs.createReadStream(path.resolve(process.argv[2]));
+    const writable = process.argv.length < 4 ? process.stdout : fs.createWriteStream(path.resolve(process.argv[3]));
+
+    const fileToStream = readable
+        .pipe(RecordBatchReader.throughNode())
+        .pipe(RecordBatchStreamWriter.throughNode())
+        .pipe(writable);
+
+    await eos(fileToStream);
+
+})().catch((e) => { console.error(e); process.exit(1); });