fix: add --non-interactive to git_to_svn._run_svn, fix stdin/input exclusivity

svn_mirror/git_to_svn.py

@@ -96,16 +96,20 @@ def _run_svn(args: list, input: bytes = None, timeout: int = 120,
     """Run an svn command.  If *wc* is given, run from that directory."""
     if auth_args:
         args = auth_args + args
+    args = ["--non-interactive"] + args
     env = {**os.environ, "LC_ALL": "C.UTF-8"}
+    kwargs = dict(
+        capture_output=True,
+        timeout=timeout,
+        cwd=str(wc) if wc else None,
+        env=env,
+    )
+    if input is not None:
+        kwargs["input"] = input
+    else:
+        kwargs["stdin"] = subprocess.DEVNULL
     try:
-        r = subprocess.run(
-            ["svn"] + args,
-            input=input,
-            capture_output=True,
-            timeout=timeout,
-            cwd=str(wc) if wc else None,
-            env=env,
-        )
+        r = subprocess.run(["svn"] + args, **kwargs)
     except FileNotFoundError:
         raise GitToSVNError("svn CLI not found – is subversion installed?")
     except subprocess.TimeoutExpired: