depot_tools: add create_temp_file.py

It takes text from stdin and dump the read text to a temp file.

Bug: 428193406
Change-Id: I268dc4905e157d619d1af7d0b96f711f224f39db
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/6789063
Reviewed-by: Gavin Mak <gavinmak@google.com>
Commit-Queue: Scott Lee <ddoman@chromium.org>

create_temp_file.py

@@ -0,0 +1,40 @@
+#!/usr/bin/env python3
+import argparse
+import os
+import sys
+import tempfile
+
+
+def run(prefix=None, suffix=None):
+    """ Reads text from stdin, writes it to a temporary file.
+
+    The path of the temporary file is printed to stdout on success.
+    """
+    try:
+        with tempfile.NamedTemporaryFile(mode='w+',
+                                         delete=False,
+                                         encoding='utf-8',
+                                         prefix=prefix,
+                                         suffix=suffix) as temp_file:
+            for line in sys.stdin:
+                temp_file.write(line)
+            temp_file.flush()
+            temp_file_path = temp_file.name
+
+        print(temp_file_path)
+
+    except Exception as e:
+        print(f"An error occurred: {e}", file=sys.stderr)
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(
+        description="Writes stdin to a temporary file and then print the path.",
+    )
+    parser.add_argument('--prefix',
+                        help="Optional prefix for the temporary file name.")
+    parser.add_argument('--suffix',
+                        help="Optional suffix for the temporary file name.")
+    args = parser.parse_args()
+    run(prefix=args.prefix, suffix=args.suffix)