Added SIGHUP signal handling, adjusted reloading of file changes, added return value of CheckTrackList()

clocky.py

@@ -1,7 +1,7 @@
 #!/usr/bin/python3
 
 import pickle
-import os.path
+import os
 import time
 import sys
 import tm1637
@@ -35,13 +35,26 @@ o_defaultbrightness=0
 o_loopdelay=0.25
 track=0
 
+stopprogram=0
+reload=False
+
 #GPIO.setmode(GPIO.BCM)     # set up BCM GPIO numbering
 #GPIO.setup(16, GPIO.IN, pull_up_down = GPIO.PUD_UP)
 
-def signal_handler(signal,frame):
+#def signal_handler(signal,frame):
-        global quit
+#        global quit
-        print("")
+#        print("")
-        quit=1
+#        quit=1
+
+def receive_signal(signum, stack):
+    global stopprogram
+    global reload
+    print('Received signal: %d' %signum)
+    if signum == signal.SIGHUP:
+        reload=True
+    if signum == signal.SIGINT: 
+        stopprogram=1
+
 
 def stamp():
         sys.stdout.write(strftime("[%Y%m%d %H%M%S] "))
@@ -52,11 +65,10 @@ def writesettings():
                 pickle.dump(settings, handle)
                 handle.close()
 
-# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # 
+# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
 
 looptype=0
 colon=0
-count=0
 digit=1
 showtime=0
 playtime=0
@@ -67,15 +79,31 @@ tvol=0
 volume=0.0
 brightness=0
 snooze=0
+count=0
+
+print("")
+print('My PID is %d' %os.getpid())
+signal.signal(signal.SIGHUP, receive_signal)
+signal.signal(signal.SIGINT, receive_signal)
+
+but1=button.Button(21)
+but2=button.Button(20)
+but3=button.Button(26)
+
+#------------------------------------------------------------------
+#------------------------------------------------------------------
+
+while not stopprogram:
+    print("reload config...")
+    reload=False
+
 
-signal.signal(signal.SIGINT,signal_handler)
 #   display=tm1637.TM1637(CLK=14, DIO=4, brightness=1)
     display=max7219.MAX7219(brightness=1)
 
     display.Clear()
     display.SetBrightnessRaw(o_defaultbrightness)
 
-print("")
     print("reading mp3s from directory:")
     tracks=clockytracklist.ClockyTracklist("mp3",recursive=True,verbose=True)
     allmp3s=tracks.tracklist
@@ -90,12 +118,12 @@ for m in allmp3s:
         print("  %2d : %s"%(c+1,m))
         c+=1
 
-print("")
-but1=button.Button(21)
-but2=button.Button(20)
-but3=button.Button(26)
-print("")
 
+    stamp()
+    print("Started")
+    sys.stdout.flush()
+
+#   .................................................................
     if not os.path.isfile(o_configfilename):
         print("Createconf: \""+o_configfilename+"\":")
 
@@ -134,13 +162,11 @@ for i in range(0,10):
                 settings["track%d"%i]=0
     writesettings()
 
-print("")
+
-stamp()
+
-print("Started")
+#   .................................................................
-sys.stdout.flush()
+
-#------------------------------------------------------------------
+    while not reload and not stopprogram:
-#------------------------------------------------------------------
-while quit!=True:
         count+=1;
         sleep(o_loopdelay)
         
@@ -571,9 +597,9 @@ while quit!=True:
 
 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 
-        if count % 40 == 0:
+        if count % 40 == 0: # every 10 seconds
-            print("#")
+            if tracks.CheckTrackList():
-            tracks.CheckTrackList()
+                reload = True;
 
 #------------------------------------------------------------------
 if pygame.mixer.get_init():

clockytracklist.py

@@ -6,11 +6,13 @@ EXTENSIONS=(".mp3",".ogg",".wav",".mpa",".m4a",".flac")
 
 class ClockyTracklist:
     """read and monitor directory with audio files"""
-    def __init__(self,path=".",recursive=False,sort=False,verbose=False):
+    def __init__(self,path=".",recursive=False,sort=True,verbose=False):
         """Read (current or supplied) path for all audio files. Add recursive=True to check all subdirectories too"""
         self.recursive=recursive
         self.path=path
         self.__verbose=verbose
+        self.__sort=sort
+        self.__reloaded=False
 
         p=Path(self.path)
         if(not p.is_dir()):
@@ -18,8 +20,6 @@ class ClockyTracklist:
             exit();
 
         self.__ReadTrackList()
-        if sort:
-            self.tracklist.sort()
         if(self.__verbose):
             self.ShowTrackList()
 
@@ -38,6 +38,8 @@ class ClockyTracklist:
             if entry.suffix in EXTENSIONS:
                 self.tracklist.append(entry.as_posix())
                 self.count+=1
+        if self.__sort:
+            self.tracklist.sort()
 
 
     def ShowTrackList(self):
@@ -58,6 +60,9 @@ class ClockyTracklist:
         newtracklist=[]
         newcount=0
         
+        if self.__reloaded:
+            self.__reloaded=False
+
         newpath=Path(self.path)
         if(self.recursive):
             selection='**/*'
@@ -67,7 +72,12 @@ class ClockyTracklist:
             if newentry.suffix in EXTENSIONS:
                 newtracklist.append(newentry.as_posix())
                 newcount+=1
+        if self.__sort:
+            newtracklist.sort()
         if(newcount != self.count) or (newtracklist != self.tracklist):
-            self.__ReadTrackList()
             if(self.__verbose):
                 print("Changes in filenames or number of files detected! Re-read tracklist.")
+            self.__ReadTrackList()
+            self.__reloaded=True
+
+        return self.__reloaded

tracktest.py

@@ -1,25 +0,0 @@
-#!/usr/bin/python3
-
-import time
-import clockytracklist
-
-print("-------------------------------------")
-print("-------------------------------------")
-tl=clockytracklist.ClockyTracklist("mp3",recursive=True,sort=False,verbose=True)
-tl.ShowTrackList()
-print("-------------------------------------")
-for e in tl.tracklist:
-    print(e);
-
-
-
-t=0
-while True:
-  t+=1
-  tl.CheckTrackList()
-  time.sleep(1)
-  
-  if(t>30):
-    break
-  print(t)  
-