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Viewing changes to bzrlib/delta.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2009-01-15 16:31:04 UTC
  • mfrom: (3941.1.1 bzr.integration)
  • Revision ID: pqm@pqm.ubuntu.com-20090115163104-30i51kcr1zepm2f7
(vila) Allows deltas to be filtered by log formatters

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bzrlib/delta.py
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class TreeDelta(object):
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    """Describes changes from one tree to another.
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    Contains four lists:
 
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    Contains seven lists:
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    added
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        (path, id, kind)
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        (path, id, kind)
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    renamed
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        (oldpath, newpath, id, kind, text_modified, meta_modified)
 
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    kind_changed
 
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        (path, id, old_kind, new_kind)
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    modified
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        (path, id, kind, text_modified, meta_modified)
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    unchanged
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        (path, id, kind)
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    unversioned
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        (path, kind)
 
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        (path, None, kind)
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    Each id is listed only once.
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    def show(self, to_file, show_ids=False, show_unchanged=False,
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             short_status=False, indent=''):
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        """output this delta in status-like form to to_file."""
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        def show_list(files, short_status_letter=''):
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            for item in files:
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                path, fid, kind = item[:3]
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                if kind == 'directory':
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                    path += '/'
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                elif kind == 'symlink':
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                    path += '@'
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                if len(item) == 5 and item[4]:
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                    path += '*'
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                if show_ids:
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                    to_file.write(indent + '%s  %-30s %s\n' % (short_status_letter,
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                        path, fid))
 
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             short_status=False, indent='',
 
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             filter=None):
 
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        """Output this delta in status-like form to to_file.
 
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        :param to_file: A file-like object where the output is displayed.
 
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        :param show_ids: Output the file ids if True.
 
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        :param show_unchanged: Output the unchanged files if True.
 
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        :param short_status: Single-line status if True.
 
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        :param indent: Added at the beginning of all output lines (for merged
 
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            revisions).
 
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        :param filter: A callable receiving a path and a file id and
 
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            returning True if the path should be displayed.
 
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        """
 
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        def decorate_path(path, kind, meta_modified=None):
 
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            if kind == 'directory':
 
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                path += '/'
 
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            elif kind == 'symlink':
 
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                path += '@'
 
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            if meta_modified:
 
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                path += '*'
 
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            return path
 
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        def show_more_renamed(item):
 
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            (oldpath, file_id, kind,
 
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             text_modified, meta_modified, newpath) = item
 
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            dec_new_path = decorate_path(newpath, kind, meta_modified)
 
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            to_file.write(' => %s' % dec_new_path)
 
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            if text_modified or meta_modified:
 
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                extra_modified.append((newpath, file_id, kind,
 
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                                       text_modified, meta_modified))
 
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        def show_more_kind_changed(item):
 
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            (path, file_id, old_kind, new_kind) = item
 
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            to_file.write(' (%s => %s)' % (old_kind, new_kind))
 
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        def show_path(path, file_id, kind, meta_modified,
 
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                      default_format, with_file_id_format):
 
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            dec_path = decorate_path(path, kind, meta_modified)
 
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            if show_ids:
 
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                to_file.write(with_file_id_format % dec_path)
 
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            else:
 
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                to_file.write(default_format % dec_path)
 
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        def show_list(files, long_status_name, short_status_letter,
 
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                      default_format='%s', with_file_id_format='%-30s',
 
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                      show_more=None):
 
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            if files:
 
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                header_shown = False
 
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                if short_status:
 
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                    prefix = short_status_letter
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                else:
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                    to_file.write(indent + '%s  %s\n' % (short_status_letter, path))
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        if self.removed:
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            if not short_status:
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                to_file.write(indent + 'removed:\n')
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                show_list(self.removed)
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            else:
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                show_list(self.removed, 'D')
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        if self.added:
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            if not short_status:
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                to_file.write(indent + 'added:\n')
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                show_list(self.added)
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            else:
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                show_list(self.added, 'A')
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                    prefix = ''
 
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                prefix = indent + prefix + '  '
 
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                for item in files:
 
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                    path, file_id, kind = item[:3]
 
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                    if (filter is not None and not filter(path, file_id)):
 
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                        continue
 
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                    if not header_shown and not short_status:
 
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                        to_file.write(indent + long_status_name + ':\n')
 
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                        header_shown = True
 
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                    meta_modified = None
 
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                    if len(item) == 5:
 
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                        meta_modified = item[4]
 
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                    to_file.write(prefix)
 
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                    show_path(path, file_id, kind, meta_modified,
 
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                              default_format, with_file_id_format)
 
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                    if show_more is not None:
 
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                        show_more(item)
 
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                    if show_ids:
 
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                        to_file.write(' %s' % file_id)
 
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                    to_file.write('\n')
 
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        show_list(self.removed, 'removed', 'D')#
 
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        show_list(self.added, 'added', 'A')
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        extra_modified = []
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        if self.renamed:
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            short_status_letter = 'R'
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            if not short_status:
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                to_file.write(indent + 'renamed:\n')
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                short_status_letter = ''
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            for (oldpath, newpath, fid, kind,
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                 text_modified, meta_modified) in self.renamed:
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                if text_modified or meta_modified:
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                    extra_modified.append((newpath, fid, kind,
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                                           text_modified, meta_modified))
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                if meta_modified:
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                    newpath += '*'
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                if show_ids:
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                    to_file.write(indent + '%s  %s => %s %s\n' % (
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                        short_status_letter, oldpath, newpath, fid))
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                else:
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                    to_file.write(indent + '%s  %s => %s\n' % (
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                        short_status_letter, oldpath, newpath))
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        if self.kind_changed:
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            if short_status:
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                short_status_letter = 'K'
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            else:
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                to_file.write(indent + 'kind changed:\n')
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                short_status_letter = ''
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            for (path, fid, old_kind, new_kind) in self.kind_changed:
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                if show_ids:
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                    suffix = ' '+fid
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                else:
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                    suffix = ''
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                to_file.write(indent + '%s  %s (%s => %s)%s\n' % (
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                    short_status_letter, path, old_kind, new_kind, suffix))
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        if self.modified or extra_modified:
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            short_status_letter = 'M'
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            if not short_status:
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                to_file.write(indent + 'modified:\n')
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                short_status_letter = ''
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            show_list(self.modified, short_status_letter)
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            show_list(extra_modified, short_status_letter)
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        if show_unchanged and self.unchanged:
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            if not short_status:
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                to_file.write(indent + 'unchanged:\n')
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                show_list(self.unchanged)
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            else:
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                show_list(self.unchanged, 'S')
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194
 
        if self.unversioned:
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            to_file.write(indent + 'unknown:\n')
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            show_list(self.unversioned)
 
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        # Reorder self.renamed tuples so that all lists share the same
 
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        # order for their 3 first fields and that they also begin like
 
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        # the self.modified tuples
 
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        renamed = [(p, i, k, tm, mm, np)
 
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                   for  p, np, i, k, tm, mm  in self.renamed]
 
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        show_list(renamed, 'renamed', 'R', with_file_id_format='%s',
 
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                  show_more=show_more_renamed)
 
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        show_list(self.kind_changed, 'kind changed', 'K',
 
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                  with_file_id_format='%s',
 
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                  show_more=show_more_kind_changed)
 
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        show_list(self.modified + extra_modified, 'modified', 'M')
 
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        if show_unchanged:
 
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            show_list(self.unchanged, 'unchanged', 'S')
 
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        show_list(self.unversioned, 'unknown', ' ')
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    def get_changes_as_text(self, show_ids=False, show_unchanged=False,
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             short_status=False):