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      1 #!/usr/bin/env python
      2 
      3 import os
      4 import sys
      5 import re
      6 import tempfile
      7 import shutil
      8 import stat
      9 from AppKit import *
     10 
     11 def FindClangSpecs(path):
     12   for root, dirs, files in os.walk(path):
     13     for f in files:
     14       if f.endswith(".xcspec") and f.startswith("Clang LLVM"):
     15         yield os.path.join(root, f)
     16 
     17 def ModifySpec(path, pathToChecker):
     18   t = tempfile.NamedTemporaryFile(delete=False)
     19   foundAnalyzer = False
     20   with open(path) as f:
     21     for line in f:
     22       if not foundAnalyzer:
     23         if line.find("Static Analyzer") >= 0:
     24           foundAnalyzer = True
     25       else:
     26         m = re.search('^(\s*ExecPath\s*=\s*")', line)
     27         if m:
     28           line = "".join([m.group(0), pathToChecker, '";\n'])
     29       t.write(line)
     30   t.close()
     31   print "(+) processing:", path
     32   try:
     33     shutil.copy(t.name, path)
     34     os.chmod(path, stat.S_IRUSR | stat.S_IWUSR | stat.S_IRGRP | stat.S_IROTH)
     35   except IOError, why:
     36     print "    (-) Cannot update file:", why, "\n"
     37   except OSError, why:
     38     print "    (-) Cannot update file:", why, "\n"
     39   os.unlink(t.name)
     40 
     41 def main():
     42   from optparse import OptionParser
     43   parser = OptionParser('usage: %prog [options]')
     44   parser.set_description(__doc__)
     45   parser.add_option("--use-checker-build", dest="path",
     46                     help="Use the Clang located at the provided absolute path, e.g. /Users/foo/checker-1")
     47   parser.add_option("--use-xcode-clang", action="store_const", 
     48                     const="$(CLANG)", dest="default",
     49                     help="Use the Clang bundled with Xcode")
     50   (options, args) = parser.parse_args()
     51   if options.path is None and options.default is None:
     52     parser.error("You must specify a version of Clang to use for static analysis.  Specify '-h' for details")
     53 
     54   # determine if Xcode is running
     55   for x in NSWorkspace.sharedWorkspace().runningApplications():
     56     if x.localizedName().find("Xcode") >= 0:
     57       print "(-) You must quit Xcode first before modifying its configuration files."
     58       return
     59 
     60   if options.path:
     61     # Expand tildes.
     62     path = os.path.expanduser(options.path)
     63     if not path.endswith("clang"):
     64       print "(+) Using Clang bundled with checker build:", path
     65       path = os.path.join(path, "bin", "clang");
     66     else:
     67       print "(+) Using Clang located at:", path
     68   else:
     69     print "(+) Using the Clang bundled with Xcode"
     70     path = options.default
     71   
     72   for x in FindClangSpecs('/Developer'):
     73     ModifySpec(x, path)
     74 
     75 if __name__ == '__main__':
     76   main()
     77 
     78