profile-repos.py

   1 #!/usr/bin/env python
   2 # ====================================================================
   3 # Copyright (c) 2000-2004 CollabNet.  All rights reserved.
   4 #
   5 # This software is licensed as described in the file COPYING, which
   6 # you should have received as part of this distribution.  The terms
   7 # are also available at http://subversion.tigris.org/license-1.html.
   8 # If newer versions of this license are posted there, you may use a
   9 # newer version instead, at your option.
  10 #
  11 # This software consists of voluntary contributions made by many
  12 # individuals.  For exact contribution history, see the revision
  13 # history and logs, available at http://cvs2svn.tigris.org/.
  14 # ====================================================================
  15
  16
  17 """
  18 Report information about CVS revisions, tags, and branches in a CVS
  19 repository by examining the results of running pass 1 of cvs2svn on
  20 that repository.  NOTE: You have to run the conversion passes
  21 yourself!
  22 """
  23
  24 import sys, os, os.path, string
  25
  26 # Fix things so we can import cvs2svn despite it not having a .py extension
  27 import imp
  28 imp.load_module('cvs2svn', open('cvs2svn', 'r'), 'cvs2svn',
  29     ('', 'r', imp.PY_SOURCE))
  30
  31 from cvs2svn import CVSRevision
  32
  33 def do_it(revs_file):
  34   fp = open(revs_file, 'r')
  35   tags = { }
  36   branches = { }
  37
  38   max_tags = 0
  39   max_branches = 0
  40   line_count = 0
  41   total_tags = 0
  42   total_branches = 0
  43
  44   while 1:
  45     line_count = line_count + 1
  46     line = fp.readline()
  47     if not line:
  48       break
  49
  50     # Get a CVSRevision to describe this line
  51     c_rev = CVSRevision(None, line)
  52
  53     # Handle tags
  54     num_tags = len(c_rev.tags)
  55     max_tags = (num_tags > max_tags) \
  56                and num_tags or max_tags
  57     total_tags = total_tags + num_tags
  58     for tag in c_rev.tags:
  59       tags[tag] = None
  60
  61     # Handle branches
  62     num_branches = len(c_rev.branches)
  63     max_branches = (num_branches > max_branches) \
  64                    and num_branches or max_branches
  65     total_branches = total_branches + num_branches
  66     for branch in c_rev.branches:
  67       branches[branch] = None
  68
  69   symbols = {}
  70   symbols.update(tags)
  71   symbols.update(branches)
  72
  73   num_symbols = len(symbols.keys())
  74   num_tags = len(tags.keys())
  75   num_branches = len(branches.keys())
  76   avg_tags = total_tags * 1.0 / line_count
  77   avg_branches = total_branches * 1.0 / line_count
  78
  79   print '   Total CVS Revisions: %d\n' \
  80         '     Total Unique Tags: %d\n' \
  81         '    Peak Revision Tags: %d\n' \
  82         '    Avg. Tags/Revision: %2.1f\n' \
  83         ' Total Unique Branches: %d\n' \
  84         'Peak Revision Branches: %d\n' \
  85         'Avg. Branches/Revision: %2.1f\n' \
  86         '  Total Unique Symbols: %d%s\n' \
  87         % (line_count,
  88            num_tags,
  89            max_tags,
  90            avg_tags,
  91            num_branches,
  92            max_branches,
  93            avg_branches,
  94            num_symbols,
  95            num_symbols == num_tags + num_branches and ' ' or ' (!)',
  96            )
  97
  98
  99 if __name__ == "__main__":
 100   argc = len(sys.argv)
 101   if argc < 2:
 102     print 'Usage: %s /path/to/cvs2svn-data.[c-|s-|]revs' \
 103         % (os.path.basename(sys.argv[0]))
 104     print __doc__
 105     sys.exit(0)
 106   do_it(sys.argv[1])