svn2svn/run/svnancest.py

   1 """
   2 Display ancestry for a given path in an SVN repository.
   3 """
   4
   5 from svn2svn import base_version, full_version
   6 from svn2svn import ui
   7 from svn2svn import svnclient
   8 from parse import HelpFormatter
   9 from svn2svn.run.common import find_svn_ancestors
  10
  11 import optparse
  12 import re
  13
  14 options = None
  15
  16 def real_main(args):
  17     global options
  18     url = args.pop(0)
  19     ui.status("url: %s", url, level=ui.DEBUG, color='GREEN')
  20     info = svnclient.info(url)
  21     repos_root = info['repos_url']
  22     repos_path = url[len(repos_root):]
  23     ancestors = find_svn_ancestors(repos_root, repos_path, options.revision)
  24     if ancestors:
  25         max_len = 0
  26         for idx in range(len(ancestors)):
  27             d = ancestors[idx]
  28             max_len = max(max_len, len(d['path']+"@"+str(d['revision'])))
  29         for idx in range(len(ancestors)):
  30             d = ancestors[idx]
  31             ui.status("[%s] %s --> %s", len(ancestors)-idx-1,
  32                 str(d['path']+"@"+str(d['revision'])).ljust(max_len),
  33                 str(d['copyfrom_path']+"@"+str(d['copyfrom_rev'])))
  34     else:
  35         ui.status("No ancestor-chain found: %s", repos_root+repos_path+"@"+str(options.revision))
  36
  37     return 0
  38
  39 def main():
  40     # Defined as entry point. Must be callable without arguments.
  41     usage = "svn2svn, version %s\n" % str(full_version) + \
  42             "<http://nynim.org/projects/svn2svn> <https://github.com/tonyduckles/svn2svn>\n\n" + \
  43             "Usage: %prog [OPTIONS] url\n"
  44     description = """\
  45 Display ancestry for a given path in an SVN repository."""
  46     parser = optparse.OptionParser(usage, description=description,
  47                 formatter=HelpFormatter(), version="%prog "+str(full_version))
  48     parser.add_option("-v", "--verbose", dest="verbosity", action="count", default=1,
  49                       help="enable additional output (use -vv or -vvv for more)")
  50     parser.add_option("-r", "--revision", type="string", dest="revision", metavar="ARG",
  51                       help="revision range to replay from source_url\n"
  52                            "Any revision # formats which SVN understands are "
  53                            "supported, e.g. 'HEAD', '{2010-01-31}', etc.")
  54     parser.add_option("--debug", dest="verbosity", const=ui.DEBUG, action="store_const",
  55                       help="enable debugging output (same as -vvv)")
  56     global options
  57     options, args = parser.parse_args()
  58     if len(args) != 1:
  59         parser.error("incorrect number of arguments")
  60     if options.verbosity < 10:
  61         # Expand multiple "-v" arguments to a real ui._level value
  62         options.verbosity *= 10
  63     if options.revision:
  64         # Reg-ex for matching a revision arg (http://svnbook.red-bean.com/en/1.5/svn.tour.revs.specifiers.html#svn.tour.revs.dates)
  65         rev_patt = '[0-9A-Z]+|\{[0-9A-Za-z/\\ :-]+\}'
  66         rev = None
  67         match = re.match('^('+rev_patt+')$', options.revision)
  68         if match is None:
  69             parser.error("unexpected --revision argument format; see 'svn help log' for valid revision formats")
  70         rev = match.groups()
  71         options.revision = rev[0] if len(rev)>0 else None
  72     else:
  73         options.revision = 'HEAD'
  74     ui.update_config(options)
  75     return real_main(args)
  76
  77
  78 if __name__ == "__main__":
  79     sys.exit(main() or 0)