tools/dev/verify-history.py

   1 #!/usr/bin/env python
   2
   3 # This program is used to verify the FS history code.
   4 #
   5 # The basic gist is this: given a repository, a path in that
   6 # repository, and a revision at which to begin plowing through history
   7 # (towards revision 1), verify that each history object returned by
   8 # the svn_fs_history_prev() interface -- indirectly via
   9 # svn_repos_history() -- represents a revision in which the node being
  10 # tracked actually changed, or where a parent directory of the node
  11 # was copied, according to the list of paths changed as reported by
  12 # svn_fs_paths_changed().
  13 #
  14 # A fun way to run this:
  15 #
  16 #   #!/bin/sh
  17 #
  18 #   export VERIFY=/path/to/verify-history.py
  19 #   export MYREPOS=/path/to/repos
  20 #
  21 #   # List the paths in HEAD of the repos (filtering out the directories)
  22 #   for VCFILE in `svn ls -R file://${MYREPOS} | grep -v '/$'`; do
  23 #     echo "Checking ${VCFILE}"
  24 #     ${VERIFY} ${MYREPOS} ${VCFILE}
  25 #   done
  26
  27 import sys
  28 import string
  29 from svn import core, repos, fs
  30
  31 class HistoryChecker:
  32   def __init__(self, fs_ptr):
  33     self.fs_ptr = fs_ptr
  34
  35   def _check_history(self, path, revision):
  36     root = fs.revision_root(self.fs_ptr, revision)
  37     changes = fs.paths_changed(root)
  38     while 1:
  39       if changes.has_key(path):
  40         return 1
  41       if path == '/':
  42         return 0
  43       idx = string.rfind(path, '/')
  44       if idx != -1:
  45         path = path[:idx]
  46       else:
  47         return 0
  48
  49   def add_history(self, path, revision, pool=None):
  50     if not self._check_history(path, revision):
  51       print "**WRONG** %8d %s" % (revision, path)
  52     else:
  53       print "          %8d %s" % (revision, path)
  54
  55
  56 def check_history(fs_ptr, path, revision):
  57   history = HistoryChecker(fs_ptr)
  58   repos.history(fs_ptr, path, history.add_history,
  59                 1, revision, 1)
  60
  61
  62 def main():
  63   argc = len(sys.argv)
  64   if argc < 3 or argc > 4:
  65     print "Usage: %s PATH-TO-REPOS PATH-IN-REPOS [REVISION]" % sys.argv[0]
  66     sys.exit(1)
  67
  68   fs_ptr = repos.fs(repos.open(sys.argv[1]))
  69   if argc == 3:
  70     revision = fs.youngest_rev(fs_ptr)
  71   else:
  72     revision = int(sys.argv[3])
  73   check_history(fs_ptr, sys.argv[2], revision)
  74   sys.exit(0)
  75
  76
  77 if __name__ == '__main__':
  78   main()