old_contents: # Copyright 2014-2015 Ivan Kravets <me@ikravets.com>
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #    http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  from os import chdir, getcwd, readlink, remove, symlink, walk
  from os.path import exists, islink, join, split
  from sys import exit as sys_exit
  
  
  def get_symrelpath(root, sympath, ending=None):
      head, tail = split(sympath)
  
      if ending:
          ending = join(tail, ending)
          relpath = join("..", ending)
      else:
          relpath = tail
          ending = tail
  
      if exists(join(root, relpath)):
          return relpath
      elif head:
          return get_symrelpath(root, head, ending)
      else:
          raise Exception()
  
  
  def fix_symlink(root, fname, brokenlink):
      prevcwd = getcwd()
      symrelpath = get_symrelpath(root, brokenlink)
  
      chdir(root)
      remove(fname)
      symlink(symrelpath, fname)
      chdir(prevcwd)
  
  
  def main():
      for root, dirnames, filenames in walk("."):
          for f in filenames:
              path = join(root, f)
              if not islink(path) or exists(path):
                  continue
              fix_symlink(root, f, readlink(path))
  
  
  if __name__ == "__main__":
      sys_exit(main())
  
new_contents: # Copyright 2014-2015 Ivan Kravets <me@ikravets.com>
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #    http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  from os import chdir, getcwd, readlink, remove, symlink, walk
  from os.path import exists, islink, join, relpath
  from sys import exit as sys_exit
  
  
  def fix_symlink(root, fname, brokenlink):
      print root, fname, brokenlink
      prevcwd = getcwd()
  
      chdir(root)
      remove(fname)
      symlink(relpath(brokenlink, root), fname)
      chdir(prevcwd)
  
  
  def main():
      for root, dirnames, filenames in walk("."):
          for f in filenames:
              path = join(root, f)
              if not islink(path) or exists(path):
                  continue
              fix_symlink(root, f, readlink(path))
  
  
  if __name__ == "__main__":
      sys_exit(main())
  
subject: Improve symlink fixer