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# Copyright (C) 2005, 2007, 2009, 2010 Canonical Ltd
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# Copyright (C) 2005 by Aaron Bentley
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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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# 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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# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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# TODO: 'bzr resolve' should accept a directory name and work from that
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# TODO: Move this into builtins
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# TODO: 'bzr resolve' should accept a directory name and work from that
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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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from bzrlib.commands import register_command
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from bzrlib.errors import BzrCommandError, NotConflicted, UnsupportedOperation
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from bzrlib.option import Option
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from bzrlib.osutils import rename, delete_any
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from bzrlib.rio import Stanza
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CONFLICT_SUFFIXES = ('.THIS', '.BASE', '.OTHER')
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class cmd_conflicts(commands.Command):
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class cmd_conflicts(bzrlib.commands.Command):
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"""List files with conflicts.
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Merge will do its best to combine the changes in two branches, but there
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it will mark a conflict. A conflict means that you need to fix something,
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before you should commit.
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Conflicts normally are listed as short, human-readable messages. If --text
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is supplied, the pathnames of files with text conflicts are listed,
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instead. (This is useful for editing all files with text conflicts.)
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Use bzr resolve when you have fixed a problem.
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(conflicts are determined by the presence of .BASE .TREE, and .OTHER
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help='List paths of files with text conflicts.'),
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_see_also = ['resolve', 'conflict-types']
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def run(self, text=False):
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wt = workingtree.WorkingTree.open_containing(u'.')[0]
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from bzrlib.workingtree import WorkingTree
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wt = WorkingTree.open_containing(u'.')[0]
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for conflict in wt.conflicts():
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if conflict.typestring != 'text conflict':
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self.outf.write(conflict.path + '\n')
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self.outf.write(str(conflict) + '\n')
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resolve_action_registry = registry.Registry()
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resolve_action_registry.register(
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'done', 'done', 'Marks the conflict as resolved' )
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resolve_action_registry.register(
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'take-this', 'take_this',
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'Resolve the conflict preserving the version in the working tree' )
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resolve_action_registry.register(
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'take-other', 'take_other',
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'Resolve the conflict taking the merged version into account' )
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resolve_action_registry.default_key = 'done'
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class ResolveActionOption(option.RegistryOption):
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super(ResolveActionOption, self).__init__(
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'action', 'How to resolve the conflict.',
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registry=resolve_action_registry)
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class cmd_resolve(commands.Command):
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class cmd_resolve(bzrlib.commands.Command):
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"""Mark a conflict as resolved.
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Merge will do its best to combine the changes in two branches, but there
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it will mark a conflict. A conflict means that you need to fix something,
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before you should commit.
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Once you have fixed a problem, use "bzr resolve" to automatically mark
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text conflicts as fixed, "bzr resolve FILE" to mark a specific conflict as
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resolved, or "bzr resolve --all" to mark all conflicts as resolved.
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Once you have fixed a problem, use "bzr resolve FILE.." to mark
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individual files as fixed, or "bzr resolve --all" to mark all conflicts as
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See also bzr conflicts.
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aliases = ['resolved']
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takes_args = ['file*']
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option.Option('all', help='Resolve all conflicts in this tree.'),
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ResolveActionOption(),
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_see_also = ['conflicts']
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def run(self, file_list=None, all=False, action=None):
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takes_options = [Option('all', help='Resolve all conflicts in this tree')]
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def run(self, file_list=None, all=False):
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from bzrlib.workingtree import WorkingTree
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raise errors.BzrCommandError("If --all is specified,"
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" no FILE may be provided")
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tree = workingtree.WorkingTree.open_containing('.')[0]
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tree, file_list = builtins.tree_files(file_list)
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if file_list is None:
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# FIXME: There is a special case here related to the option
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# handling that could be clearer and easier to discover by
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# providing an --auto action (bug #344013 and #383396) and
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# make it mandatory instead of implicit and active only
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# when no file_list is provided -- vila 091229
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if file_list is None:
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un_resolved, resolved = tree.auto_resolve()
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if len(un_resolved) > 0:
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trace.note('%d conflict(s) auto-resolved.', len(resolved))
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trace.note('Remaining conflicts:')
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for conflict in un_resolved:
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trace.note('All conflicts resolved.')
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# FIXME: This can never occur but the block above needs some
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# refactoring to transfer tree.auto_resolve() to
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# conflict.auto(tree) --vila 091242
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resolve(tree, file_list, action=action)
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def resolve(tree, paths=None, ignore_misses=False, recursive=False,
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"""Resolve some or all of the conflicts in a working tree.
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:param paths: If None, resolve all conflicts. Otherwise, select only
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:param recursive: If True, then elements of paths which are directories
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have all their children resolved, etc. When invoked as part of
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recursive commands like revert, this should be True. For commands
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or applications wishing finer-grained control, like the resolve
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command, this should be False.
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:param ignore_misses: If False, warnings will be printed if the supplied
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paths do not have conflicts.
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:param action: How the conflict should be resolved,
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tree.lock_tree_write()
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raise BzrCommandError("If --all is specified, no FILE may be provided")
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tree = WorkingTree.open_containing('.')[0]
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raise BzrCommandError("command 'resolve' needs one or more FILE, or --all")
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tree = WorkingTree.open_containing(file_list[0])[0]
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to_resolve = [tree.relpath(p) for p in file_list]
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resolve(tree, to_resolve)
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def resolve(tree, paths=None, ignore_misses=False):
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tree_conflicts = tree.conflicts()
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new_conflicts = ConflictList()
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to_process = tree_conflicts
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selected_conflicts = tree_conflicts
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new_conflicts, to_process = tree_conflicts.select_conflicts(
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tree, paths, ignore_misses, recursive)
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for conflict in to_process:
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conflict._do(action, tree)
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conflict.cleanup(tree)
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except NotImplementedError:
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new_conflicts.append(conflict)
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new_conflicts, selected_conflicts = \
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tree_conflicts.select_conflicts(tree, paths, ignore_misses)
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tree.set_conflicts(new_conflicts)
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except errors.UnsupportedOperation:
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except UnsupportedOperation:
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selected_conflicts.remove_files(tree)
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def restore(filename):
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"""Restore a conflicted file to the state it was in before merging.
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Only text restoration is supported at present.
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Restore a conflicted file to the state it was in before merging.
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Only text restoration supported at present.
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conflicted = False
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osutils.rename(filename + ".THIS", filename)
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rename(filename + ".THIS", filename)
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conflicted = True
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except OSError, e:
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if e.errno != errno.ENOENT:
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print "%s is not conflicted" % path
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return new_conflicts, selected_conflicts
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class Conflict(object):
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"""Base class for all types of conflict"""
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# FIXME: cleanup should take care of that ? -- vila 091229
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has_files = False
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def __init__(self, path, file_id=None):
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# warn turned off, because the factory blindly transfers the Stanza
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# values to __init__ and Stanza is purely a Unicode api.
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self.file_id = osutils.safe_file_id(file_id, warn=False)
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self.file_id = file_id
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def as_stanza(self):
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s = rio.Stanza(type=self.typestring, path=self.path)
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s = Stanza(type=self.typestring, path=self.path)
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if self.file_id is not None:
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# Stanza requires Unicode apis
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s.add('file_id', self.file_id.decode('utf8'))
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s.add('file_id', self.file_id)
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def _cmp_list(self):
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return None, conflict.typestring
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def _do(self, action, tree):
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"""Apply the specified action to the conflict.
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:param action: The method name to call.
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:param tree: The tree passed as a parameter to the method.
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meth = getattr(self, 'action_%s' % action, None)
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raise NotImplementedError(self.__class__.__name__ + '.' + action)
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def cleanup(self, tree):
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raise NotImplementedError(self.cleanup)
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def action_done(self, tree):
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"""Mark the conflict as solved once it has been handled."""
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# This method does nothing but simplifies the design of upper levels.
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def action_take_this(self, tree):
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raise NotImplementedError(self.action_take_this)
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def action_take_other(self, tree):
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raise NotImplementedError(self.action_take_other)
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class PathConflict(Conflict):
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"""A conflict was encountered merging file paths"""
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format = 'Contents conflict in %(path)s'
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def cleanup(self, tree):
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for suffix in ('.BASE', '.OTHER'):
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osutils.delete_any(tree.abspath(self.path + suffix))
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if e.errno != errno.ENOENT:
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# FIXME: I smell something weird here and it seems we should be able to be
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# more coherent with some other conflict ? bzr *did* a choice there but
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# neither action_take_this nor action_take_other reflect that...
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def action_take_this(self, tree):
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tree.remove([self.path + '.OTHER'], force=True, keep_files=False)
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def action_take_other(self, tree):
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tree.remove([self.path], force=True, keep_files=False)
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# FIXME: TextConflict is about a single file-id, there never is a conflict_path
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# attribute so we shouldn't inherit from PathConflict but simply from Conflict
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# TODO: There should be a base revid attribute to better inform the user about
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# how the conflicts were generated.
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class TextConflict(PathConflict):
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"""The merge algorithm could not resolve all differences encountered."""
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def __init__(self, action, path, conflict_path, file_id=None,
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conflict_file_id=None):
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HandledConflict.__init__(self, action, path, file_id)
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self.conflict_path = conflict_path
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# warn turned off, because the factory blindly transfers the Stanza
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# values to __init__.
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self.conflict_file_id = osutils.safe_file_id(conflict_file_id,
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self.conflict_path = conflict_path
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self.conflict_file_id = conflict_file_id
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def _cmp_list(self):
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return HandledConflict._cmp_list(self) + [self.conflict_path,
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return HandledConflict._cmp_list(self) + [self.conflict_path,
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self.conflict_file_id]
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def as_stanza(self):
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s = HandledConflict.as_stanza(self)
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s.add('conflict_path', self.conflict_path)
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if self.conflict_file_id is not None:
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s.add('conflict_file_id', self.conflict_file_id.decode('utf8'))
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s.add('conflict_file_id', self.conflict_file_id)
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format = 'Conflict moving %(conflict_path)s into %(path)s. %(action)s.'
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def action_take_this(self, tree):
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# just acccept bzr proposal
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def action_take_other(self, tree):
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# FIXME: We shouldn't have to manipulate so many paths here (and there
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# is probably a bug or two...)
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base_path = osutils.basename(self.path)
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conflict_base_path = osutils.basename(self.conflict_path)
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tt = transform.TreeTransform(tree)
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p_tid = tt.trans_id_file_id(self.file_id)
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parent_tid = tt.get_tree_parent(p_tid)
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cp_tid = tt.trans_id_file_id(self.conflict_file_id)
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cparent_tid = tt.get_tree_parent(cp_tid)
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tt.adjust_path(base_path, cparent_tid, cp_tid)
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tt.adjust_path(conflict_base_path, parent_tid, p_tid)
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class UnversionedParent(HandledConflict):
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"""An attempt to version a file whose parent directory is not versioned.
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"""An attempt to version an file whose parent directory is not versioned.
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Typically, the result of a merge where one tree unversioned the directory
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and the other added a versioned file to it.
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typestring = 'unversioned parent'
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format = 'Conflict because %(path)s is not versioned, but has versioned'\
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' children. %(action)s.'
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# FIXME: We silently do nothing to make tests pass, but most probably the
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# conflict shouldn't exist (the long story is that the conflict is
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# generated with another one that can be resolved properly) -- vila 091224
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def action_take_this(self, tree):
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def action_take_other(self, tree):
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format = 'Conflict adding versioned files to %(path)s. %(action)s.'
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class MissingParent(HandledConflict):
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"""An attempt to add files to a directory that is not present.
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Typically, the result of a merge where THIS deleted the directory and
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the OTHER added a file to it.
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See also: DeletingParent (same situation, THIS and OTHER reversed)
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Typically, the result of a merge where one tree deleted the directory and
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the other added a file to it.
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typestring = 'missing parent'
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format = 'Conflict adding files to %(path)s. %(action)s.'
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def action_take_this(self, tree):
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tree.remove([self.path], force=True, keep_files=False)
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def action_take_other(self, tree):
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# just acccept bzr proposal
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class DeletingParent(HandledConflict):
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"""An attempt to add files to a directory that is not present.
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Typically, the result of a merge where one OTHER deleted the directory and
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the THIS added a file to it.
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typestring = 'deleting parent'
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format = "Conflict: can't delete %(path)s because it is not empty. "\
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# FIXME: It's a bit strange that the default action is not coherent with
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# MissingParent from the *user* pov.
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def action_take_this(self, tree):
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# just acccept bzr proposal
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def action_take_other(self, tree):
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tree.remove([self.path], force=True, keep_files=False)
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class NonDirectoryParent(HandledConflict):
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"""An attempt to add files to a directory that is not a directory or
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an attempt to change the kind of a directory with files.
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typestring = 'non-directory parent'
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format = "Conflict: %(path)s is not a directory, but has files in it."\
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# FIXME: .OTHER should be used instead of .new when the conflict is created
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def action_take_this(self, tree):
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# FIXME: we should preserve that path when the conflict is generated !
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if self.path.endswith('.new'):
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conflict_path = self.path[:-(len('.new'))]
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tree.remove([self.path], force=True, keep_files=False)
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tree.add(conflict_path)
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raise NotImplementedError(self.action_take_this)
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def action_take_other(self, tree):
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# FIXME: we should preserve that path when the conflict is generated !
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if self.path.endswith('.new'):
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conflict_path = self.path[:-(len('.new'))]
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tree.remove([conflict_path], force=True, keep_files=False)
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tree.rename_one(self.path, conflict_path)
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raise NotImplementedError(self.action_take_other)
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removed
bzrlib/conflicts.py
