From 5c84958b219e5cc7e3c390448237eb39fb47d8ee Mon Sep 17 00:00:00 2001
From: dalthviz <16781833+dalthviz@users.noreply.github.com>
Date: Thu, 25 Sep 2025 15:13:25 -0500
Subject: [PATCH 1/2] Prevent showing cmd on Windows and add handling for ruff
 execution with pythonw

---
 .gitignore           | 2 ++
 pylsp_ruff/plugin.py | 6 +++---
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/.gitignore b/.gitignore
index 5a9e939..b59b74a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,5 @@ __pycache__/
 *.swp
 tags
 /build/
+
+.spyproject/
diff --git a/pylsp_ruff/plugin.py b/pylsp_ruff/plugin.py
index 23af27e..bb318e0 100644
--- a/pylsp_ruff/plugin.py
+++ b/pylsp_ruff/plugin.py
@@ -7,7 +7,7 @@
 import sys
 from functools import lru_cache
 from pathlib import PurePath
-from subprocess import PIPE, Popen
+from subprocess import CREATE_NO_WINDOW, PIPE, Popen
 from typing import Dict, Generator, List, Optional
 
 if sys.version_info >= (3, 11):
@@ -502,7 +502,7 @@ def find_executable(executable) -> List[str]:
     # try the python module
     if cmd is None:
         if importlib.util.find_spec("ruff") is not None:
-            cmd = [sys.executable, "-m", "ruff"]
+            cmd = [sys.executable.replace("pythonw", "python"), "-m", "ruff"]
 
     # try system's ruff executable
     if cmd is None:
@@ -557,7 +557,7 @@ def run_ruff(
     cmd = [*find_executable(executable), str(subcommand), *arguments]
 
     log.debug(f"Calling {cmd} on '{document_path}'")
-    p = Popen(cmd, stdin=PIPE, stdout=PIPE)
+    p = Popen(cmd, stdin=PIPE, stdout=PIPE, creationflags=CREATE_NO_WINDOW)
     (stdout, _) = p.communicate(document_source.encode())
 
     if p.returncode != 0:

From 4968caacdda3799e6bdea8769a8552968adbecd1 Mon Sep 17 00:00:00 2001
From: dalthviz <16781833+dalthviz@users.noreply.github.com>
Date: Thu, 25 Sep 2025 15:31:28 -0500
Subject: [PATCH 2/2] Handle CREATE_NO_WINDOW subprocess flag value (only
 available on Windows)

---
 pylsp_ruff/plugin.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/pylsp_ruff/plugin.py b/pylsp_ruff/plugin.py
index bb318e0..e58c68f 100644
--- a/pylsp_ruff/plugin.py
+++ b/pylsp_ruff/plugin.py
@@ -7,9 +7,16 @@
 import sys
 from functools import lru_cache
 from pathlib import PurePath
-from subprocess import CREATE_NO_WINDOW, PIPE, Popen
+from subprocess import PIPE, Popen
 from typing import Dict, Generator, List, Optional
 
+if sys.platform == "win32":
+    from subprocess import CREATE_NO_WINDOW
+else:
+    # CREATE_NO_WINDOW flag only available on Windows.
+    # Set constant as default `Popen` `creationflag` kwarg value (`0`)
+    CREATE_NO_WINDOW = 0
+
 if sys.version_info >= (3, 11):
     import tomllib
 else: