cvs2svn_rcsparse/debug.py

   1 # -*-python-*-
   2 #
   3 # Copyright (C) 1999-2006 The ViewCVS Group. All Rights Reserved.
   4 #
   5 # By using this file, you agree to the terms and conditions set forth in
   6 # the LICENSE.html file which can be found at the top level of the ViewVC
   7 # distribution or at http://viewvc.org/license-1.html.
   8 #
   9 # For more information, visit http://viewvc.org/
  10 #
  11 # -----------------------------------------------------------------------
  12
  13 """debug.py: various debugging tools for the rcsparse package."""
  14
  15 import time
  16
  17 from __init__ import parse
  18 import common
  19
  20
  21 class DebugSink(common.Sink):
  22   def set_head_revision(self, revision):
  23     print 'head:', revision
  24
  25   def set_principal_branch(self, branch_name):
  26     print 'branch:', branch_name
  27
  28   def define_tag(self, name, revision):
  29     print 'tag:', name, '=', revision
  30
  31   def set_comment(self, comment):
  32     print 'comment:', comment
  33
  34   def set_description(self, description):
  35     print 'description:', description
  36
  37   def define_revision(self, revision, timestamp, author, state,
  38                       branches, next):
  39     print 'revision:', revision
  40     print '    timestamp:', timestamp
  41     print '    author:', author
  42     print '    state:', state
  43     print '    branches:', branches
  44     print '    next:', next
  45
  46   def set_revision_info(self, revision, log, text):
  47     print 'revision:', revision
  48     print '    log:', log
  49     print '    text:', text[:100], '...'
  50
  51
  52 class DumpSink(common.Sink):
  53   """Dump all the parse information directly to stdout.
  54
  55   The output is relatively unformatted and untagged. It is intended as a
  56   raw dump of the data in the RCS file. A copy can be saved, then changes
  57   made to the parsing engine, then a comparison of the new output against
  58   the old output.
  59   """
  60   def __init__(self):
  61     global sha
  62     import sha
  63
  64   def set_head_revision(self, revision):
  65     print revision
  66
  67   def set_principal_branch(self, branch_name):
  68     print branch_name
  69
  70   def define_tag(self, name, revision):
  71     print name, revision
  72
  73   def set_comment(self, comment):
  74     print comment
  75
  76   def set_description(self, description):
  77     print description
  78
  79   def define_revision(self, revision, timestamp, author, state,
  80                       branches, next):
  81     print revision, timestamp, author, state, branches, next
  82
  83   def set_revision_info(self, revision, log, text):
  84     print revision, sha.new(log).hexdigest(), sha.new(text).hexdigest()
  85
  86   def tree_completed(self):
  87     print 'tree_completed'
  88
  89   def parse_completed(self):
  90     print 'parse_completed'
  91
  92
  93 def dump_file(fname):
  94   parse(open(fname, 'rb'), DumpSink())
  95
  96 def time_file(fname):
  97   f = open(fname, 'rb')
  98   s = common.Sink()
  99   t = time.time()
 100   parse(f, s)
 101   t = time.time() - t
 102   print t
 103
 104 def _usage():
 105   print 'This is normally a module for importing, but it has a couple'
 106   print 'features for testing as an executable script.'
 107   print 'USAGE: %s COMMAND filename,v' % sys.argv[0]
 108   print '  where COMMAND is one of:'
 109   print '    dump: filename is "dumped" to stdout'
 110   print '    time: filename is parsed with the time written to stdout'
 111   sys.exit(1)
 112
 113 if __name__ == '__main__':
 114   import sys
 115   if len(sys.argv) != 3:
 116     _usage()
 117   if sys.argv[1] == 'dump':
 118     dump_file(sys.argv[2])
 119   elif sys.argv[1] == 'time':
 120     time_file(sys.argv[2])
 121   else:
 122     _usage()