bin/dependencies_b.py

   1 # this is seperate to allow us to use python 2.5 syntax without
   2 # the dependency checker breaking on earlier versions.
   3
   4 import sys
   5 import subprocess
   6
   7 def fail(*message):
   8   print >>sys.stderr, "\n".join(message)
   9   sys.exit(1)
  10
  11 def warn(*message):
  12   print >>sys.stderr, "warning:", "\nwarning: ".join(message), "\n"
  13
  14 def check_dependencies():
  15   i = 0
  16
  17   check_twisted()
  18   check_win32()
  19   i+=check_java()
  20   i+=check_hg()
  21
  22   print "0 errors, %d warnings." % i
  23
  24   if i == 0:
  25     print "looks like you've got everything you need to run qwebirc!"
  26   else:
  27     print "you can run qwebirc despite these."
  28
  29   f = open(".checked", "w")
  30   f.close()
  31
  32 def check_win32():
  33   if not sys.platform.startswith("win"):
  34     return
  35
  36   try:
  37     import win32con
  38   except ImportError:
  39     fail("qwebirc requires pywin32, see:", "http://sourceforge.net/project/showfiles.php?group_id=78018")
  40
  41 def check_java():
  42   def java_warn(specific):
  43     warn(specific, "java is not required, but allows qwebirc to compress output,", "making it faster to download.", "you can get java at http://www.java.com/")
  44
  45   try:
  46     p = subprocess.Popen(["java", "-version"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  47     p.communicate()
  48     if p.wait() != 0:
  49       java_warn("something went wrong looking for java.")
  50       return 1
  51   except: # ugh
  52     java_warn("couldn't find java.")
  53     return 1
  54
  55   return 0
  56
  57 def check_hg():
  58   def hg_warn(specific):
  59     warn(specific, "mercurial (hg) is not required, but allows qwebirc to save bandwidth by versioning.", "you can get hg at http://www.selenic.com/mercurial/")
  60
  61   try:
  62     p = subprocess.Popen(["hg", "id"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  63     p.communicate()
  64     if p.wait() != 0:
  65       hg_warn("something went wrong looking for mercurial.")
  66       return 1
  67   except: # ugh
  68     hg_warn("couldn't find mercurial.")
  69     return 1
  70
  71   return 0
  72
  73 def check_twisted():
  74   try:
  75     import twisted
  76   except ImportError:
  77     fail("qwebirc requires twisted (at least 8.2.0), see http://twistedmatrix.com/")
  78
  79   def twisted_fail(x, y=None):
  80     fail("you don't seem to have twisted's %s module." % x,
  81          "your distro is most likely modular, look for a twisted %s package%s." % (x, " %s" % y if y else "",))
  82
  83   try:
  84     import twisted.names
  85   except ImportError:
  86     twisted_fail("names")
  87
  88   try:
  89     import twisted.mail
  90   except ImportError:
  91     twisted_fail("mail")
  92
  93   try:
  94     import twisted.web
  95   except ImportError:
  96     twisted_fail("web", "(not web2)")
  97
  98   try:
  99     import twisted.words
 100   except ImportError:
 101     twisted_fail("words")
 102
 103 if __name__ == "__main__":
 104   import dependencies
 105   dependencies.check_dependencies()