From 62063c6b209808d4dae479cde72254ba8645429c Mon Sep 17 00:00:00 2001
From: Alex Ford <282792+asford@users.noreply.github.com>
Date: Wed, 5 Mar 2025 12:50:56 -0800
Subject: [PATCH] Add **kwargs to cat_file, mirroring pipe_file.

Extend cat_file interface with kwargs to match pipe_file,
allowing conditional `IfMatch` passed into s3 requests.
---
 s3fs/core.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/s3fs/core.py b/s3fs/core.py
index cf32e702..e2d28a6d 100644
--- a/s3fs/core.py
+++ b/s3fs/core.py
@@ -1136,7 +1136,7 @@ async def _touch(self, path, truncate=True, data=None, **kwargs):
 
     touch = sync_wrapper(_touch)
 
-    async def _cat_file(self, path, version_id=None, start=None, end=None):
+    async def _cat_file(self, path, version_id=None, start=None, end=None, **kwargs):
         bucket, key, vers = self.split_path(path)
         if start is not None or end is not None:
             head = {"Range": await self._process_limits(path, start, end)}
@@ -1151,6 +1151,7 @@ async def _call_and_read():
                 **version_id_kw(version_id or vers),
                 **head,
                 **self.req_kw,
+                **kwargs,
             )
             try:
                 return await resp["Body"].read()