| # Copyright (c) 2010 Google Inc. All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: |
| # |
| # * Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # * Redistributions in binary form must reproduce the above |
| # copyright notice, this list of conditions and the following disclaimer |
| # in the documentation and/or other materials provided with the |
| # distribution. |
| # * Neither the name of Google Inc. nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| import os |
| import tempfile |
| |
| |
| class PrettyPatch(object): |
| def __init__(self, executive): |
| self._executive = executive |
| |
| def pretty_diff_file(self, diff): |
| # Diffs can contain multiple text files of different encodings |
| # so we always deal with them as byte arrays, not unicode strings. |
| assert(isinstance(diff, str)) |
| pretty_diff = self.pretty_diff(diff) |
| diff_file = tempfile.NamedTemporaryFile(suffix=".html") |
| diff_file.write(pretty_diff) |
| diff_file.flush() |
| return diff_file |
| |
| def pretty_diff(self, diff): |
| # pretify.rb will hang forever if given no input. |
| # Avoid the hang by returning an empty string. |
| if not diff: |
| return "" |
| |
| pretty_patch_path = os.path.join(os.path.dirname(__file__), '..', '..', |
| 'webkitruby', 'PrettyPatch') |
| prettify_path = os.path.join(pretty_patch_path, "prettify.rb") |
| args = [ |
| "ruby", |
| "-I", |
| pretty_patch_path, |
| prettify_path, |
| ] |
| # PrettyPatch does not modify the encoding of the diff output |
| # so we can't expect it to be utf-8. |
| return self._executive.run_command(args, input=diff, decode_output=False) |
