forum/management/commands/checkinstall.py

   1 import re
   2 import sys, traceback
   3 from django.core.management.base import NoArgsCommand
   4
   5 OK_MESSAGE = "  Found %(what)s version %(version)s - OK"
   6
   7 OLD_VERSION_ERROR = """  ERROR: Found %(what)s version %(version)s - you should upgrade it to at least %(minimum)s.
   8                 Package installers like apt-get or yum usually maintain old versions of libraries in the repositories."""
   9
  10 NOT_FOUND_ERROR = "ERROR: %(what)s was not found on your system."
  11
  12 HOW_TO_INSTALL = """  Try easy_install %(what)s or download it from %(where)s"""
  13
  14 IMPORT_ERROR_MESSAGE = """Importing %(what)s is throwing an exception. Here's the full stack trace:"""
  15
  16 class Command(NoArgsCommand):
  17     def handle_noargs(self, **options):
  18         print "Checking dependencies:"
  19
  20         try:
  21             import html5lib
  22             print "  Found html5lib - OK"
  23         except ImportError:
  24             print NOT_FOUND_ERROR % dict(what='html5lib')
  25             print HOW_TO_INSTALL % dict(what='html5lib', where='http://code.google.com/p/html5lib/')
  26         except Exception, e:
  27             print IMPORT_ERROR_MESSAGE % dict(what='html5lib')
  28             traceback.print_exc(file=sys.stdout)
  29
  30         try:
  31             import markdown
  32             version = int(re.findall('^\d+', markdown.version)[0])
  33             if version < 2:
  34                 print OLD_VERSION_ERROR % dict(what='markdown', version=markdown.version, minimum='2.0')
  35                 print HOW_TO_INSTALL % dict(what='markdown', where='http://www.freewisdom.org/projects/python-markdown/')
  36             else:
  37                 print OK_MESSAGE % dict(what='markdown', version=markdown.version)
  38         except ImportError:
  39             print NOT_FOUND_ERROR % dict(what='markdown')
  40             print HOW_TO_INSTALL % dict(what='markdown', where='http://www.freewisdom.org/projects/python-markdown/')
  41         except Exception, e:
  42             print IMPORT_ERROR_MESSAGE % dict(what='markdown')
  43             traceback.print_exc(file=sys.stdout)
  44
  45         try:
  46             import south
  47             version = re.findall('\d+', south.__version__)
  48
  49             if int(version[1]) < 6 and int(version[0]) == 0:
  50                 print OLD_VERSION_ERROR % dict(what='south', version=south.__version__, minimum='0.6')
  51                 print HOW_TO_INSTALL % dict(what='south', where='http://south.aeracode.org/')
  52             else:
  53                 print OK_MESSAGE % dict(what='south', version=south.__version__)
  54
  55
  56         except ImportError:
  57             print NOT_FOUND_ERROR % dict(what='south')
  58             print HOW_TO_INSTALL % dict(what='south', where='http://south.aeracode.org/')
  59         except Exception, e:
  60             print IMPORT_ERROR_MESSAGE % dict(what='south')
  61             traceback.print_exc(file=sys.stdout)
  62
  63
  64         print "\n\nChecking database connection:"
  65
  66         try:
  67             from forum.models import User
  68             User.objects.all().count()
  69             print "  Connection OK"
  70         except Exception, e:
  71             print "There seems to be a problem with your database: %s" % str(e)
  72
  73
  74
  75         from django.conf import settings
  76
  77         print "\n\nChecking important settings:"
  78
  79         if not re.match('^https?:\/\/\w+', settings.APP_URL):
  80             print " Your APP_URL does not seem to be a valid url. Please fill this setting with the URL of your OSQA installation"
  81         else:
  82             print " APP_URL - %s" % settings.APP_URL
  83
  84