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# Copyright (C) 2005-2010 Canonical Ltd.
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# Copyright (C) 2004, 2005, 2006 Canonical Ltd.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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if sequence_matcher is None:
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sequence_matcher = patiencediff.PatienceSequenceMatcher
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ud = patiencediff.unified_diff(oldlines, newlines,
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fromfile=old_filename.encode(path_encoding, 'replace'),
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tofile=new_filename.encode(path_encoding, 'replace'),
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fromfile=old_filename.encode(path_encoding),
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tofile=new_filename.encode(path_encoding),
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sequencematcher=sequence_matcher)
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@deprecated_function(deprecated_in((2, 2, 0)))
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def get_trees_and_branches_to_diff(path_list, revision_specs, old_url, new_url,
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apply_view=True):
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"""Get the trees and specific files to diff given a list of paths.
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a tuple of (old_tree, new_tree, old_branch, new_branch,
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specific_files, extra_trees) where extra_trees is a sequence of
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additional trees to search in for file-ids. The trees and branches
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op = cleanup.OperationWithCleanups(get_trees_and_branches_to_diff_locked)
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return op.run_simple(path_list, revision_specs, old_url, new_url,
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op.add_cleanup, apply_view=apply_view)
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def get_trees_and_branches_to_diff_locked(
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path_list, revision_specs, old_url, new_url, add_cleanup, apply_view=True):
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"""Get the trees and specific files to diff given a list of paths.
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This method works out the trees to be diff'ed and the files of
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interest within those trees.
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the list of arguments passed to the diff command
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:param revision_specs:
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Zero, one or two RevisionSpecs from the diff command line,
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saying what revisions to compare.
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The url of the old branch or tree. If None, the tree to use is
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taken from the first path, if any, or the current working tree.
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The url of the new branch or tree. If None, the tree to use is
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taken from the first path, if any, or the current working tree.
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a callable like Command.add_cleanup. get_trees_and_branches_to_diff
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will register cleanups that must be run to unlock the trees, etc.
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if True and a view is set, apply the view or check that the paths
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a tuple of (old_tree, new_tree, old_branch, new_branch,
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specific_files, extra_trees) where extra_trees is a sequence of
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additional trees to search in for file-ids. The trees and branches
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will be read-locked until the cleanups registered via the add_cleanup
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additional trees to search in for file-ids.
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# Get the old and new revision specs
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old_revision_spec = None
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default_location = path_list[0]
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other_paths = path_list[1:]
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def lock_tree_or_branch(wt, br):
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add_cleanup(wt.unlock)
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add_cleanup(br.unlock)
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# Get the old location
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specific_files = []
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if old_url is None:
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old_url = default_location
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working_tree, branch, relpath = \
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bzrdir.BzrDir.open_containing_tree_or_branch(old_url)
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lock_tree_or_branch(working_tree, branch)
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if consider_relpath and relpath != '':
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if working_tree is not None and apply_view:
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views.check_path_in_view(working_tree, relpath)
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if new_url != old_url:
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working_tree, branch, relpath = \
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bzrdir.BzrDir.open_containing_tree_or_branch(new_url)
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lock_tree_or_branch(working_tree, branch)
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if consider_relpath and relpath != '':
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if working_tree is not None and apply_view:
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views.check_path_in_view(working_tree, relpath)
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# Get the specific files (all files is None, no files is [])
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if make_paths_wt_relative and working_tree is not None:
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other_paths = working_tree.safe_relpath_files(
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from bzrlib.builtins import safe_relpath_files
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other_paths = safe_relpath_files(working_tree, other_paths,
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apply_view=apply_view)
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except errors.FileInWrongBranch:
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raise errors.BzrCommandError("Files are in different branches")
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specific_files.extend(other_paths)
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if len(specific_files) == 0:
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specific_files = None
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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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"""Show in text form the changes from one tree to another.
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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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:param external_diff_options: If set, use an external GNU diff and pass
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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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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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If set, more Trees to use for looking up file ids
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If set, the path will be encoded as specified, otherwise is supposed
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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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if extra_trees is not None:
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new_tree.lock_read()
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differ = format_cls.from_trees_options(old_tree, new_tree, to_file,
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external_diff_options,
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old_label, new_label, using)
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differ = DiffTree.from_trees_options(old_tree, new_tree, to_file,
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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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new_tree.unlock()
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def _get_text(tree, file_id, path):
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if file_id is not None:
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return tree.get_file_lines(file_id, path)
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return tree.get_file(file_id, path).readlines()
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from_text = _get_text(self.old_tree, from_file_id, from_path)
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to_text = _get_text(self.new_tree, to_file_id, to_path)
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self.text_differ(from_label, from_text, to_label, to_text,
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self.to_file, path_encoding=self.path_encoding)
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except errors.BinaryFile:
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self.to_file.write(
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("Binary files %s and %s differ\n" %
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(from_label, to_label)).encode(self.path_encoding,'replace'))
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(from_label, to_label)).encode(self.path_encoding))
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return self.CHANGED
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def from_string(klass, command_string, old_tree, new_tree, to_file,
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path_encoding='utf-8'):
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command_template = cmdline.split(command_string)
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command_template = commands.shlex_split_unicode(command_string)
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if '@' not in command_string:
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command_template.extend(['@old_path', '@new_path'])
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return klass(command_template, old_tree, new_tree, to_file,
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osutils.make_readonly(full_path)
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mtime = tree.get_file_mtime(file_id)
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except errors.FileTimestampUnavailable:
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os.utime(full_path, (mtime, mtime))
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osutils.make_readonly(full_path)
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os.utime(full_path, (mtime, mtime))
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def _prepare_files(self, file_id, old_path, new_path, force_temp=False,
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extra_factories = []
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if external_diff_options:
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opts = external_diff_options.split()
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def diff_file(olab, olines, nlab, nlines, to_file, path_encoding=None):
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""":param path_encoding: not used but required
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to match the signature of internal_diff.
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def diff_file(olab, olines, nlab, nlines, to_file):
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external_diff(olab, olines, nlab, nlines, to_file, opts)
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diff_file = internal_diff
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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 specific_files: the specific files to compare (recursive)
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:param sepecific_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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removed
bzrlib/diff.py
