lib/python/Components/Ipkg.py

   1 from enigma import eConsoleAppContainer
   2
   3 class IpkgComponent:
   4         EVENT_INSTALL = 0
   5         EVENT_DOWNLOAD = 1
   6         EVENT_INFLATING = 2
   7         EVENT_CONFIGURING = 3
   8         EVENT_REMOVE = 4
   9         EVENT_UPGRADE = 5
  10         EVENT_LISTITEM = 9
  11         EVENT_DONE = 10
  12         EVENT_ERROR = 11
  13         EVENT_MODIFIED = 12
  14
  15         CMD_INSTALL = 0
  16         CMD_LIST = 1
  17         CMD_REMOVE = 2
  18         CMD_UPDATE = 3
  19         CMD_UPGRADE = 4
  20
  21         def __init__(self, ipkg = '/usr/bin/ipkg'):
  22                 self.ipkg = ipkg
  23
  24                 self.cmd = eConsoleAppContainer()
  25                 self.cache = None
  26                 self.callbackList = []
  27                 self.setCurrentCommand()
  28
  29         def setCurrentCommand(self, command = None):
  30                 self.currentCommand = command
  31
  32         def runCmd(self, cmd):
  33                 print "executing", self.ipkg, cmd
  34                 self.cmd.appClosed.append(self.cmdFinished)
  35                 self.cmd.dataAvail.append(self.cmdData)
  36                 if self.cmd.execute(self.ipkg + " " + cmd):
  37                         self.cmdFinished(-1)
  38
  39         def startCmd(self, cmd, args = None):
  40                 if cmd == self.CMD_UPDATE:
  41                         self.runCmd("update")
  42                 elif cmd == self.CMD_UPGRADE:
  43                         append = ""
  44                         if args["test_only"]:
  45                                 append = " -test"
  46                         self.runCmd("upgrade" + append)
  47                 elif cmd == self.CMD_LIST:
  48                         self.fetchedList = []
  49                         if args['installed_only']:
  50                                 self.runCmd("list_installed")
  51                         else:
  52                                 self.runCmd("list")
  53                 elif cmd == self.CMD_INSTALL:
  54                         self.runCmd("install " + args['package'])
  55                 self.setCurrentCommand(cmd)
  56
  57         def cmdFinished(self, retval):
  58                 self.callCallbacks(self.EVENT_DONE)
  59                 self.cmd.appClosed.remove(self.cmdFinished)
  60                 self.cmd.dataAvail.remove(self.cmdData)
  61
  62         def cmdData(self, data):
  63                 print "data:", data
  64                 if self.cache is None:
  65                         self.cache = data
  66                 else:
  67                         self.cache += data
  68
  69                 if '\n' in data:
  70                         splitcache = self.cache.split('\n')
  71                         if self.cache[-1] == '\n':
  72                                 iteration = splitcache
  73                                 self.cache = None
  74                         else:
  75                                 iteration = splitcache[:-1]
  76                                 self.cache = splitcache[-1]
  77                         for mydata in iteration:
  78                                 if mydata != '':
  79                                         self.parseLine(mydata)
  80
  81         def parseLine(self, data):
  82                 if self.currentCommand == self.CMD_LIST:
  83                         item = data.split(' - ', 2)
  84                         self.fetchedList.append(item)
  85                         self.callCallbacks(self.EVENT_LISTITEM, item)
  86                 else:
  87                         if data.find('Downloading') == 0:
  88                                 self.callCallbacks(self.EVENT_DOWNLOAD, data.split(' ', 5)[1].strip())
  89                         elif data.find('Upgrading') == 0:
  90                                 self.callCallbacks(self.EVENT_UPGRADE, data.split('    ', 1)[1].split(' ')[0])
  91                         elif data.find('Installing') == 0:
  92                                 self.callCallbacks(self.EVENT_INSTALL, data.split(' ', 1)[1].split(' ')[0])
  93                         elif data.find('Configuring') == 0:
  94                                 self.callCallbacks(self.EVENT_CONFIGURING, data.split(' ', 1)[1].split(' ')[0])
  95                         elif data.find('An error occurred') == 0:
  96                                 self.callCallbacks(self.EVENT_ERROR, None)
  97                         elif data.find('Failed to download') == 0:
  98                                 self.callCallbacks(self.EVENT_ERROR, None)
  99                         elif data.find('ipkg_download: ERROR:') == 0:
 100                                 self.callCallbacks(self.EVENT_ERROR, None)
 101                         elif data.find('    Configuration file \'') >= 0:
 102                                 # Note: the config file update question doesn't end with a newline, so
 103                                 # if we get multiple config file update questions, the next ones
 104                                 # don't necessarily start at the beginning of a line
 105                                 self.callCallbacks(self.EVENT_MODIFIED, data.split(' \'', 1)[1][:-1])
 106
 107         def callCallbacks(self, event, param = None):
 108                 for callback in self.callbackList:
 109                         callback(event, param)
 110
 111         def addCallback(self, callback):
 112                 self.callbackList.append(callback)
 113
 114         def getFetchedList(self):
 115                 return self.fetchedList
 116
 117         def stop(self):
 118                 self.cmd.kill()
 119
 120         def isRunning(self):
 121                 return self.cmd.running()
 122
 123         def write(self, what):
 124                 if what:
 125                         # We except unterminated commands
 126                         what += "\n"
 127                         self.cmd.write(what, len(what))