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_json()
  20   i+=check_java()
  21   i+=check_hg()
  22
  23   print "0 errors, %d warnings." % i
  24
  25   if i == 0:
  26     print "looks like you've got everything you need to run qwebirc!"
  27   else:
  28     print "you can run qwebirc despite these."
  29
  30   f = open(".checked", "w")
  31   f.close()
  32
  33 def check_win32():
  34   if not sys.platform.startswith("win"):
  35     return
  36
  37   try:
  38     import win32con
  39   except ImportError:
  40     fail("qwebirc requires pywin32, see:", "http://sourceforge.net/project/showfiles.php?group_id=78018")
  41
  42 def check_java():
  43   def java_warn(specific):
  44     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/")
  45
  46   try:
  47     p = subprocess.Popen(["java", "-version"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  48     p.communicate()
  49     if p.wait() != 0:
  50       java_warn("something went wrong looking for java.")
  51       return 1
  52   except: # ugh
  53     java_warn("couldn't find java.")
  54     return 1
  55
  56   return 0
  57
  58 def check_hg():
  59   def hg_warn(specific):
  60     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/")
  61
  62   try:
  63     p = subprocess.Popen(["hg", "id"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  64     p.communicate()
  65     if p.wait() != 0:
  66       hg_warn("something went wrong looking for mercurial.")
  67       return 1
  68   except: # ugh
  69     hg_warn("couldn't find mercurial.")
  70     return 1
  71
  72   return 0
  73
  74 def check_twisted():
  75   try:
  76     import twisted
  77   except ImportError:
  78     fail("qwebirc requires twisted (at least 8.2.0), see http://twistedmatrix.com/")
  79
  80   def twisted_fail(x, y=None):
  81     fail("you don't seem to have twisted's %s module." % x,
  82          "your distro is most likely modular, look for a twisted %s package%s." % (x, " %s" % y if y else "",))
  83
  84   try:
  85     import twisted.names
  86   except ImportError:
  87     twisted_fail("names")
  88
  89   try:
  90     import twisted.mail
  91   except ImportError:
  92     twisted_fail("mail")
  93
  94   try:
  95     import twisted.web
  96   except ImportError:
  97     twisted_fail("web", "(not web2)")
  98
  99   try:
 100     import twisted.words
 101   except ImportError:
 102     twisted_fail("words")
 103
 104 def check_json():
 105   import qwebirc.util.qjson
 106   if qwebirc.util.qjson.slow:
 107     warn("simplejson module with C speedups not installed.",
 108          "using embedded module (slower); consider installing simplejson from:",
 109          "http://pypi.python.org/pypi/simplejson/")
 110     return 1
 111   return 0
 112
 113 if __name__ == "__main__":
 114   import dependencies
 115   dependencies.check_dependencies()