[bug] kill a previous process in osx

Since in OSX the user sees Bitmask in the Dock, I assume that re-launching
Bitmask.app from the /Applications folder means that we can kill the previous
process.

It probably should be able to terminate it gracefully, but we're hitting this
during early testing because of the move to native webview - because the
window.close() method is still not properly hooked.

- Resolves: #9001

1 files changed, 12 insertions, 2 deletions

diff --git a/src/leap/bitmask/gui/app2.py b/src/leap/bitmask/gui/app2.py
index 13f369c4..f037a000 100644
--- a/src/leap/bitmask/gui/app2.py
+++ b/src/leap/bitmask/gui/app2.py
@@ -31,17 +31,21 @@ import webbrowser
 from functools import partial
 from multiprocessing import Process
 
+import webview
+import psutil
+
 from leap.bitmask.core.launcher import run_bitmaskd, pid
 from leap.common.config import get_path_prefix
 #from leap.bitmask.gui import app_rc
 
-import webview
 
 DEBUG = os.environ.get("DEBUG", False)
 
 BITMASK_URI = 'http://localhost:7070/'
 PIXELATED_URI = 'http://localhost:9090/'
 
+PROCNAME = 'bitmask-app'
+
 qApp = None
 bitmaskd = None
 browser = None
@@ -114,7 +118,13 @@ def launch_gui():
 
 def start_app():
     from leap.bitmask.util import STANDALONE
-    os.environ['QT_AUTO_SCREEN_SCALE_FACTOR'] = '1'
+
+    mypid = os.getpid()
+
+    # Kill a previously-running process
+    for proc in psutil.process_iter():
+        if proc.name() == PROCNAME and proc.pid != mypid:
+            proc.kill()
 
     # Allow the frozen binary in the bundle double as the cli entrypoint
     # Why have only a user interface when you can have two?