Multiple package support.

Closes #7.

pidcat.py

@@ -30,7 +30,7 @@ import termios
 import struct
 
 parser = argparse.ArgumentParser(description='Filter logcat by package name')
-parser.add_argument('package', help='Application package name')
+parser.add_argument('package', nargs='+', help='Application package name(s)')
 parser.add_argument('--tag-width', metavar='N', dest='tag_width', type=int, default=22, help='Width of log tag')
 parser.add_argument('--color-gc', dest='color_gc', action='store_true', help='Color garbage collection')
 
@@ -132,17 +132,17 @@ def parse_death(tag, message):
   kill = PID_KILL.match(message)
   if kill:
     pid = kill.group(1)
-    if kill.group(2) == args.package and pid in pids:
+    if kill.group(2) in args.package and pid in pids:
       return pid
   leave = PID_LEAVE.match(message)
   if leave:
     pid = leave.group(2)
-    if leave.group(1) == args.package and pid in pids:
+    if leave.group(1) in args.package and pid in pids:
       return pid
   death = PID_DEATH.match(message)
   if death:
     pid = death.group(2)
-    if death.group(1) == args.package and pid in pids:
+    if death.group(1) in args.package and pid in pids:
       return pid
   return None
 
@@ -166,7 +166,7 @@ while True:
     if start is not None:
       line_package, target, line_pid, line_uid, line_gids = start.groups()
 
-      if line_package == args.package:
+      if line_package in args.package:
         pids.add(line_pid)
 
         linebuf  = colorize(' ' * (header_size - 1), bg=WHITE)