tools/bdb/whatis-rep.py

   1 #!/usr/bin/env python
   2 #
   3 # Print a description (including data, path, and revision) of the
   4 # specified node reps in a Subversion filesystem.  Walks as much of
   5 # the reps table as necessary to locate the data (e.g. does a table
   6 # scan).
   7
   8 # Standard modules
   9 import sys, os, re, codecs
  10
  11 # Local support modules
  12 import skel, svnfs
  13
  14 def main():
  15   progname = os.path.basename(sys.argv[0])
  16   if len(sys.argv) >= 3:
  17     dbhome = os.path.join(sys.argv[1], 'db')
  18     if not os.path.exists(dbhome):
  19       sys.stderr.write("%s: '%s' is not a valid svn repository\n" %
  20           (sys.argv[0], dbhome))
  21       sys.exit(1)
  22     rep_ids = sys.argv[2:]
  23   else:
  24     print >> sys.stderr, "Usage: %s <svn-repository> <rep-id>..." % progname
  25     sys.exit(1)
  26
  27   print "%s running on repository '%s'" % (progname, dbhome)
  28   print
  29   rep_ids = dict.fromkeys(rep_ids)
  30   ctx = svnfs.Ctx(dbhome)
  31   try:
  32     cur = ctx.nodes_db.cursor()
  33     try:
  34       rec = cur.first()
  35       while rec:
  36         if rec[0] != 'next-key':
  37           nid, cid, tid = rec[0].split(".")
  38           nd = skel.Node(rec[1])
  39           if nd.datarep in rep_ids:
  40             rev = skel.Txn(ctx.txns_db[tid]).rev
  41             print "%s: data of '%s%s' in r%s" % (nd.datarep,
  42                 nd.createpath, {"dir":'/', "file":''}[nd.kind], rev)
  43           if nd.proprep in rep_ids:
  44             rev = skel.Txn(ctx.txns_db[tid]).rev
  45             print "%s: properties of '%s%s' in r%s" % (nd.datarep,
  46                 nd.createpath, {"dir":'/', "file":''}[nd.kind], rev)
  47         rec = cur.next()
  48     finally:
  49       cur.close()
  50   finally:
  51     ctx.close()
  52
  53 if __name__ == '__main__':
  54   main()