ctcore.py

   1 # Copyright (c) 2005 Fredrik Kuivinen <freku045@student.liu.se>
   2 #
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License version 2 as
   5 # published by the Free Software Foundation.
   6 #
   7 # This program is distributed in the hope that it will be useful,
   8 # but WITHOUT ANY WARRANTY; without even the implied warranty of
   9 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10 # GNU General Public License for more details.
  11 #
  12 # You should have received a copy of the GNU General Public License
  13 # along with this program; if not, write to the Free Software
  14 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  15
  16 import sys
  17
  18 applicationName = 'Commit Tool'
  19 shortName = 'ct'
  20 version = 'v0.3'
  21
  22 _settings = None
  23
  24 def settings():
  25     global _settings
  26     if not _settings:
  27         from settings import Settings
  28         _settings = Settings()
  29     return _settings
  30
  31 DEBUG = 0
  32
  33 # PyQt3 and python 2.4 isn't currently available together on
  34 # Debian/testing we do therefore use the following quite ugly work
  35 # around. The module 'mysubprocess' is just a copy of the 'subprocess'
  36 # module from the Python 2.4 distribution.
  37 ver = sys.version_info
  38 if ver[0] < 2 or (ver[0] == 2 and ver[1] <= 3):
  39     import mysubprocess
  40     subprocess = mysubprocess
  41 else:
  42     import subprocess
  43
  44 class File:
  45     def __init__(self):
  46         self.listViewItem = None
  47
  48 class ProgramError(Exception):
  49     def __init__(self, program, err):
  50         Exception.__init__(self)
  51         self.program = program
  52         self.error = err
  53
  54 def runProgram(prog, input=None, expectedexits=[0]):
  55     debug('runProgram prog: ' + str(prog) + " input: " + str(input))
  56     if type(prog) is str:
  57         progStr = prog
  58     else:
  59         progStr = ' '.join(prog)
  60
  61     try:
  62         pop = subprocess.Popen(prog,
  63                                shell = type(prog) is str,
  64                                stderr=subprocess.STDOUT,
  65                                stdout=subprocess.PIPE,
  66                                stdin=subprocess.PIPE)
  67     except OSError, e:
  68         debug("strerror: " + e.strerror)
  69         raise ProgramError(progStr, e.strerror)
  70
  71     if input != None:
  72         pop.stdin.write(input)
  73     pop.stdin.close()
  74
  75     out = pop.stdout.read()
  76     code = pop.wait()
  77     if code not in expectedexits:
  78         debug("error output: " + out)
  79         raise ProgramError(progStr, out)
  80     debug("output: " + out.replace('\0', '\n'))
  81     return out
  82
  83 def debug(str):
  84     if DEBUG:
  85         print str