bzr branch
http://gegoxaren.bato24.eu/bzr/brz/remove-bazaar
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3907.2.1
by Ian Clatworthy
WorkingTreeFormat5 supporting content filtering and views |
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# Copyright (C) 2008 Canonical Ltd
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#
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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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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""WorkingTree5 format and implementation.
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"""
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from bzrlib.lazy_import import lazy_import |
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lazy_import(globals(), """ |
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from bzrlib import (
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workingtree_4,
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)
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""") |
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class WorkingTree5(workingtree_4.WorkingTree4): |
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"""This is the Format 5 working tree. |
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This differs from WorkingTree4 by:
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- Supporting content filtering.
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- Supporting a current view that may mask the set of files in a tree
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impacted by most user operations.
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This is new in bzr 1.11.
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"""
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class WorkingTreeFormat5(workingtree_4.WorkingTreeFormat4): |
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"""WorkingTree format supporting views. |
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"""
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upgrade_recommended = False |
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_tree_class = WorkingTree5 |
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def get_format_string(self): |
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"""See WorkingTreeFormat.get_format_string().""" |
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return "Bazaar Working Tree Format 5 (bzr 1.11)\n" |
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def get_format_description(self): |
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"""See WorkingTreeFormat.get_format_description().""" |
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return "Working tree format 5" |
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def _init_custom_control_files(self, wt): |
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"""Subclasses with custom control files should override this method.""" |
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wt._transport.put_bytes('views', '', mode=wt.bzrdir._get_file_mode()) |
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def supports_content_filtering(self): |
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return True |
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def supports_views(self): |
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return True |
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class Converter4to5(object): |
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"""Perform an in-place upgrade of format 4 to format 5 trees.""" |
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def __init__(self): |
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self.target_format = WorkingTreeFormat5() |
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def convert(self, tree): |
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# lock the control files not the tree, so that we don't get tree
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# on-unlock behaviours, and so that no-one else diddles with the
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# tree during upgrade.
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tree._control_files.lock_write() |
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try: |
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self.init_custom_control_files(tree) |
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self.update_format(tree) |
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finally: |
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tree._control_files.unlock() |
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def init_custom_control_files(self, tree): |
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"""Initialize custom control files.""" |
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tree._transport.put_bytes('views', '', |
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mode=tree.bzrdir._get_file_mode()) |
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def update_format(self, tree): |
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"""Change the format marker.""" |
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tree._transport.put_bytes('format', |
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self.target_format.get_format_string(), |
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mode=tree.bzrdir._get_file_mode()) |