cameractrlsd: move find_symlink_in to cameractrls

cameractrls.py

@@ -2440,6 +2440,15 @@ def save_preset(self, device, preset_num, errs):
         except Exception as e:
             collect_warning(f'ConfigPreset: save_preset failed: {e}', errs)
 
+def find_symlink_in(dir, paths):
+    for path in paths:
+        if not os.path.isdir(path):
+            continue
+        for p in os.scandir(path):
+            if p.is_symlink() and os.path.realpath(p) == dir:
+                return p
+    return None
+
 def get_configdir():
     return os.getenv("XDG_CONFIG_HOME", os.path.expanduser('~/.config/hu.irl.cameractrls'))
 

cameractrlsd.py

@@ -3,7 +3,7 @@
 import sys, os, ctypes, ctypes.util, logging, getopt, time
 from collections import namedtuple
 from struct import unpack_from, calcsize
-from cameractrls import CameraCtrls, get_configfilename
+from cameractrls import CameraCtrls, find_symlink_in, get_configfilename
 
 clib = ctypes.util.find_library('c')
 if clib is None:
@@ -114,15 +114,6 @@ def parse_events(data):
         events.append(Event(wd, mask, cookie, namesize, name.decode()))
     return events
 
-def find_symlink_in(dir, paths):
-    for path in paths:
-        if not os.path.isdir(path):
-            continue
-        for p in os.scandir(path):
-            if p.is_symlink() and os.path.realpath(p) == dir:
-                return p
-    return None
-
 def main():
     try:
         arguments, values = getopt.getopt(sys.argv[1:], 'h', ['help'])