lib/python/Components/Ipkg.py

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