/brz/remove-bazaar

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Viewing changes to workingtree.py

Provide custom intertree implementation for GitRevisionTree->GitWorkingTree.

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workingtree.py
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from dulwich.objects import (
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    Blob,
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    )
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from dulwich.protocol import (
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    ZERO_SHA,
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    )
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import os
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import stat
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    osutils,
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    transport,
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    tree,
 
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    urlutils,
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    workingtree,
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    )
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from bzrlib.decorators import (
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from bzrlib.plugins.git.inventory import (
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    GitIndexInventory,
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    )
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from bzrlib.plugins.git.tree import (
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    changes_from_git_changes,
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    tree_delta_from_git_changes,
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    )
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from bzrlib.plugins.git.mapping import (
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    GitFileIdMap,
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    )
 
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IGNORE_FILENAME = ".gitignore"
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class GitWorkingTree(workingtree.WorkingTree):
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    """A Git working tree."""
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    def __init__(self, bzrdir, repo, branch, index):
 
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    def __init__(self, bzrdir, repo, branch):
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        self.basedir = bzrdir.root_transport.local_abspath('.')
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        self.bzrdir = bzrdir
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        self.repository = repo
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        self._branch = branch
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        self._transport = bzrdir.transport
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        self.controldir = self.bzrdir.transport.local_abspath('bzr')
 
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        self.controldir = urlutils.join(self.repository._git._controldir, 'bzr')
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        try:
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            os.makedirs(self.controldir)
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        self._control_files = lockable_files.LockableFiles(
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            transport.get_transport(self.controldir), 'lock', lockdir.LockDir)
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        self._format = GitWorkingTreeFormat()
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        self.index = index
 
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        self.index = self.repository._git.open_index()
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        self.views = self._make_views()
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        self._detect_case_handling()
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                    from posix import stat_result
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                    stat_val = stat_result((stat.S_IFLNK, 0, 0, 0, 0, 0, 0, 0, 0, 0))
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                blob.set_raw_string(entry.symlink_target)
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            else:
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                raise AssertionError("unknown kind '%s'" % entry.kind)
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            # Add object to the repository if it didn't exist yet
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            if not blob.id in self.repository._git.object_store:
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                self.repository._git.object_store.add_object(blob)
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        # TODO: Maybe this should only write on dirty ?
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        if self._control_files._lock_mode != 'w':
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            raise errors.NotWriteLocked(self)
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        self._rewrite_index()
 
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        self._rewrite_index()           
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        self.index.write()
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        self._inventory_is_modified = False
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    def _reset_data(self):
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        self._inventory_is_modified = False
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        try:
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            head = self.repository._git.head()
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        except KeyError, name:
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            raise errors.NotBranchError("branch %s at %s" % (name, self.repository.base))
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        basis_inv = self.repository.get_inventory(self.branch.lookup_foreign_revision_id(head))
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        store = self.repository._git.object_store
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        if head == ZERO_SHA:
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            fileid_map = GitFileIdMap({}, self.mapping)
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            basis_inv = None
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        else:
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            fileid_map = self.mapping.get_fileid_map(store.__getitem__,
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                store[head].tree)
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        result = GitIndexInventory(basis_inv, fileid_map, self.index, store)
 
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        basis_inv = self.repository.get_inventory(self.mapping.revision_id_foreign_to_bzr(self.repository._git.head()))
 
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        result = GitIndexInventory(basis_inv, self.mapping, self.index,
 
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            self.repository._git.object_store)
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        self._set_inventory(result, dirty=False)
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    @needs_read_lock
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    def revision_tree(self, revid):
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        return self.repository.revision_tree(revid)
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    @needs_read_lock
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    def conflicts(self):
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        # FIXME:
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        return []
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class GitWorkingTreeFormat(workingtree.WorkingTreeFormat):
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    @property
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    def _matchingbzrdir(self):
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        from bzrlib.plugins.git import LocalGitControlDirFormat
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        return LocalGitControlDirFormat()
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    def get_format_description(self):
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        return "Git Working Tree"
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def tree_delta_from_git_changes(changes, mapping, specific_file=None, 
 
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                                require_versioned=False):
 
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    """Create a TreeDelta from two git trees.
 
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    source and target are iterators over tuples with: 
 
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        (filename, sha, mode)
 
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    """
 
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    from bzrlib import delta
 
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    from bzrlib.plugins.git.mapping import mode_kind
 
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    ret = delta.TreeDelta()
 
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    for (oldpath, newpath), (oldmode, newmode), (oldsha, newsha) in changes:
 
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        if oldpath is None:
 
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            ret.added.append((newpath, mapping.generate_file_id(newpath), mode_kind(newmode)))
 
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        elif newpath is None:
 
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            ret.removed.append((oldpath, mapping.generate_file_id(oldpath), mode_kind(oldmode)))
 
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        elif oldpath != newpath:
 
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            ret.renamed.append((oldpath, newpath, mapping.generate_file_id(oldpath), mode_kind(newmode), (oldsha != newsha), (oldmode != newmode)))
 
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        elif mode_kind(oldmode) != mode_kind(newmode):
 
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            ret.kind_changed.append((newpath, mapping.generate_file_id(newpath), mode_kind(oldmode), mode_kind(newmode)))
 
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        elif oldsha != newsha or oldmode != newmode:
 
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            ret.modified.append((newpath, mapping.generate_file_id(newpath), mode_kind(newmode), (oldsha != newsha), (oldmode != newmode)))
 
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        else:
 
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            ret.unchanged.append((newpath, mapping.generate_file_id(newpath), mode_kind(newmode)))
 
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    return ret
 
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class InterIndexGitTree(tree.InterTree):
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    """InterTree that works between a Git revision tree and an index."""
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        changes = self._index.changes_from_tree(
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            self.source._repository._git.object_store, self.source.tree, 
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            want_unchanged=want_unchanged)
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        source_fileid_map = self.source.mapping.get_fileid_map(
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            self.source._repository._git.object_store.__getitem__,
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            self.source.tree)
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        if self.target.mapping.BZR_FILE_IDS_FILE is not None:
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            file_id = self.target.path2id(
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                self.target.mapping.BZR_FILE_IDS_FILE)
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            if file_id is None:
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                target_fileid_map = {}
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            else:
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                target_fileid_map = self.target.mapping.import_fileid_map(Blob.from_string(self.target.get_file_text(file_id)))
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        else:
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            target_fileid_map = {}
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        target_fileid_map = GitFileIdMap(target_fileid_map, self.target.mapping)
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        ret = tree_delta_from_git_changes(changes, self.target.mapping,
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            (source_fileid_map, target_fileid_map),
 
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        ret = tree_delta_from_git_changes(changes, self.target.mapping, 
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            specific_file=specific_files, require_versioned=require_versioned)
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        if want_unversioned:
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            for e in self.target.extras():
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                ret.unversioned.append((e, None, osutils.file_kind(self.target.abspath(e))))
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        return ret
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    def iter_changes(self, include_unchanged=False, specific_files=None,
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        pb=None, extra_trees=[], require_versioned=True, want_unversioned=False):
267
 
        changes = self._index.changes_from_tree(
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            self.source._repository._git.object_store, self.source.tree, 
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            want_unchanged=include_unchanged)
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        # FIXME: Handle want_unversioned
271
 
        return changes_from_git_changes(changes, self.target.mapping, 
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            specific_file=specific_files)
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tree.InterTree.register_optimiser(InterIndexGitTree)