old_contents: """Wrapper around 'git rev-parse'."""
  # =============================================================================
  # CONTENTS
  # -----------------------------------------------------------------------------
  # phlgit_revparse
  #
  # Public Classes:
  #   Error
  #
  # Public Functions:
  #   get_sha1_or_none
  #   get_sha1
  #
  # -----------------------------------------------------------------------------
  # (this contents block is generated, edits will be lost)
  # =============================================================================
  
  from __future__ import absolute_import
  
  
  class Error(Exception):
      pass
  
  
  def get_sha1_or_none(clone, ref):
      """Return string of the ref's commit hash if valid, else None.
  
      :clone: supports call()
      :ref: string of the reference to parse
      :returns: string of the ref's commit hash if valid, else None.
  
      """
      commit = clone("rev-parse", "--revs-only", ref).strip()
      return commit if commit else None
  
  
  def get_sha1(clone, ref):
      """Return string of the ref's commit hash.
  
      Raise if the ref is invalid.
  
      :clone: supports call()
      :ref: string of the reference to parse
      :returns: string of the ref's commit hash
  
      """
      commit = get_sha1_or_none(clone, ref)
      if commit is None:
          raise Error("ref '{}' is invalid.".format(ref))
      return commit
  
  
  #------------------------------------------------------------------------------
  # Copyright (C) 2013-2014 Bloomberg Finance L.P.
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to
  # deal in the Software without restriction, including without limitation the
  # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  # sell copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in
  # all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  # IN THE SOFTWARE.
  #------------------------------- END-OF-FILE ----------------------------------
  
new_contents: """Wrapper around 'git rev-parse'."""
  # =============================================================================
  # CONTENTS
  # -----------------------------------------------------------------------------
  # phlgit_revparse
  #
  # Public Classes:
  #   Error
  #
  # Public Functions:
  #   get_sha1_or_none
  #   get_sha1
  #
  # -----------------------------------------------------------------------------
  # (this contents block is generated, edits will be lost)
  # =============================================================================
  
  from __future__ import absolute_import
  
  
  class Error(Exception):
      pass
  
  
  def get_sha1_or_none(repo, ref):
      """Return string of the ref's commit hash if valid, else None.
  
      :repo: supports call()
      :ref: string of the reference to parse
      :returns: string of the ref's commit hash if valid, else None.
  
      """
      commit = repo("rev-parse", "--revs-only", ref).strip()
      return commit if commit else None
  
  
  def get_sha1(repo, ref):
      """Return string of the ref's commit hash.
  
      Raise if the ref is invalid.
  
      :repo: supports call()
      :ref: string of the reference to parse
      :returns: string of the ref's commit hash
  
      """
      commit = get_sha1_or_none(repo, ref)
      if commit is None:
          raise Error("ref '{}' is invalid.".format(ref))
      return commit
  
  
  #------------------------------------------------------------------------------
  # Copyright (C) 2013-2014 Bloomberg Finance L.P.
  #
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to
  # deal in the Software without restriction, including without limitation the
  # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  # sell copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  #
  # The above copyright notice and this permission notice shall be included in
  # all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  # IN THE SOFTWARE.
  #------------------------------- END-OF-FILE ----------------------------------
  
subject: rename 'clone' to 'repo'