Only allow one instance of the script at the time

Author: luisbocanegra

kde-material-you-colors

@@ -6,6 +6,8 @@ import argparse
 import utils
 from schemeconfigs import ThemeConfig
 if __name__ == '__main__':
+    #kill existing instance if found
+    utils.kill_existing()
     # Make sure the schemes path exists
     if not os.path.exists(utils.USER_SCHEMES_PATH):
         os.makedirs(utils.USER_SCHEMES_PATH)

utils.py

@@ -875,3 +875,13 @@ def timeout_set(time_s=3):
 
 def timeout_reset():
     signal.alarm(0)
+
+def kill_existing():
+    get_pids=subprocess.check_output("ps -e -f | grep [/]usr/bin/kde-material-you-colors | awk '{print $2}'",
+                                        shell=True, stderr=subprocess.PIPE,universal_newlines=True).strip().splitlines()
+    current_pid = os.getpid()
+    for pid in get_pids:
+        pid = int(pid)
+        if pid != current_pid:
+            logging.debug(f"Found existing process with PID: '{pid}' killing...")
+            subprocess.Popen("kill -9 "+str(pid),shell=True)