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  • Committer: Andrew Bennetts
  • Date: 2010-04-08 07:01:10 UTC
  • mfrom: (5138 +trunk)
  • mto: This revision was merged to the branch mainline in revision 5141.
  • Revision ID: andrew.bennetts@canonical.com-20100408070110-mnvv0kbbyaj6cqdg
Merge lp:bzr.

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bzrlib/diff.py
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from bzrlib.workingtree import WorkingTree
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""")
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from bzrlib.registry import (
 
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    Registry,
 
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    )
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from bzrlib.symbol_versioning import (
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    deprecated_function,
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    )
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                    old_label='a/', new_label='b/',
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                    extra_trees=None,
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                    path_encoding='utf8',
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                    using=None):
 
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                    using=None,
 
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                    format_cls=None):
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    """Show in text form the changes from one tree to another.
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    to_file
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        The output stream.
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    specific_files
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        Include only changes to these files - None for all changes.
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    external_diff_options
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        If set, use an external GNU diff and pass these options.
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    extra_trees
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        If set, more Trees to use for looking up file ids
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    path_encoding
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        If set, the path will be encoded as specified, otherwise is supposed
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        to be utf8
 
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    :param to_file: The output stream.
 
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    :param specific_files:Include only changes to these files - None for all
 
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        changes.
 
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    :param external_diff_options: If set, use an external GNU diff and pass 
 
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        these options.
 
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    :param extra_trees: If set, more Trees to use for looking up file ids
 
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    :param path_encoding: If set, the path will be encoded as specified, 
 
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        otherwise is supposed to be utf8
 
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    :param format_cls: Formatter class (DiffTree subclass)
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    """
 
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    if format_cls is None:
 
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        format_cls = DiffTree
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    old_tree.lock_read()
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    try:
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        if extra_trees is not None:
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                tree.lock_read()
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        new_tree.lock_read()
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        try:
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            differ = DiffTree.from_trees_options(old_tree, new_tree, to_file,
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                                                 path_encoding,
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                                                 external_diff_options,
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                                                 old_label, new_label, using)
 
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            differ = format_cls.from_trees_options(old_tree, new_tree, to_file,
 
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                                                   path_encoding,
 
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                                                   external_diff_options,
 
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                                                   old_label, new_label, using)
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            return differ.show_diff(specific_files, extra_trees)
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        finally:
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            new_tree.unlock()
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    def show_diff(self, specific_files, extra_trees=None):
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        """Write tree diff to self.to_file
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        :param sepecific_files: the specific files to compare (recursive)
 
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        :param specific_files: the specific files to compare (recursive)
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        :param extra_trees: extra trees to use for mapping paths to file_ids
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        """
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        try:
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            if error_path is None:
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                error_path = old_path
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            raise errors.NoDiffFound(error_path)
 
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format_registry = Registry()
 
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format_registry.register('default', DiffTree)