Suppress prompt spawned by subprocess when using pythonw

Author: collinbanko

sentry_sdk/utils.py

@@ -2,6 +2,7 @@
 import linecache
 import logging
 import os
+import platform
 import sys
 import threading
 import subprocess
@@ -60,11 +61,17 @@ def get_default_release():
     if release:
         return release
 
+    startupinfo = None
+    if platform.system() == "Windows":
+        startupinfo = subprocess.STARTUPINFO()
+        startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
+
     with open(os.path.devnull, "w+") as null:
         try:
             release = (
                 subprocess.Popen(
                     ["git", "rev-parse", "HEAD"],
+                    startupinfo=startupinfo,
                     stdout=subprocess.PIPE,
                     stderr=null,
                     stdin=null,