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# Copyright (C) 2009 Jelmer Vernooij <jelmer@samba.org>
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from dulwich.objects import (
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class GitInventoryEntry(inventory.InventoryEntry):
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def __init__(self, inv, parent_id, hexsha, path, name, executable):
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self.parent_id = parent_id
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self.revision = self._inventory.revision_id
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self.executable = executable
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self.file_id = self._inventory.mapping.generate_file_id(path.encode('utf-8'))
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if self._object is None:
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self._object = self._inventory.store[self.hexsha]
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assert isinstance(self._object, self._git_class), \
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"Expected instance of %r, got %r" % \
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(self._git_class, self._object)
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class GitInventoryFile(GitInventoryEntry):
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def __init__(self, inv, parent_id, hexsha, path, basename, executable):
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super(GitInventoryFile, self).__init__(inv, parent_id, hexsha, path, basename, executable)
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self.symlink_target = None
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return osutils.sha_string(self.object.data)
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return len(self.object.data)
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return ("%s(%r, %r, parent_id=%r, sha1=%r, len=%s, revision=%s)"
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% (self.__class__.__name__,
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def kind_character(self):
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"""See InventoryEntry.kind_character."""
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other = inventory.InventoryFile(self.file_id, self.name, self.parent_id)
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other.executable = self.executable
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other.text_id = self.text_id
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other.text_sha1 = self.text_sha1
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other.text_size = self.text_size
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other.revision = self.revision
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class GitInventoryLink(GitInventoryEntry):
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def __init__(self, inv, parent_id, hexsha, path, basename, executable):
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super(GitInventoryLink, self).__init__(inv, parent_id, hexsha, path, basename, executable)
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self.text_sha1 = None
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self.text_size = None
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self.kind = 'symlink'
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def symlink_target(self):
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return self.object.data
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def kind_character(self):
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"""See InventoryEntry.kind_character."""
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other = inventory.InventoryLink(self.file_id, self.name, self.parent_id)
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other.symlink_target = self.symlink_target
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other.revision = self.revision
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class GitInventoryDirectory(GitInventoryEntry):
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def __init__(self, inv, parent_id, hexsha, path, basename, executable):
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super(GitInventoryDirectory, self).__init__(inv, parent_id, hexsha, path, basename, executable)
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self.text_sha1 = None
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self.text_size = None
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self.symlink_target = None
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self.kind = 'directory'
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self._children = None
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def kind_character(self):
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"""See InventoryEntry.kind_character."""
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if self._children is None:
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self._retrieve_children()
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return self._children
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def _retrieve_children(self):
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for mode, name, hexsha in self.object.entries():
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basename = name.decode("utf-8")
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child_path = osutils.pathjoin(self.path, basename)
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entry_kind = (mode & 0700000) / 0100000
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fs_mode = mode & 0777
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executable = bool(fs_mode & 0111)
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kind_class = GitInventoryDirectory
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elif entry_kind == 1:
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file_kind = (mode & 070000) / 010000
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kind_class = GitInventoryFile
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kind_class = GitInventoryLink
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raise AssertionError(
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"Unknown file kind, perms=%o." % (mode,))
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raise AssertionError(
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"Unknown blob kind, perms=%r." % (mode,))
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self._children[basename] = kind_class(self._inventory, self.file_id, hexsha, child_path, basename, executable)
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other = inventory.InventoryDirectory(self.file_id, self.name,
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other.revision = self.revision
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# note that children are *not* copied; they're pulled across when
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class GitInventory(inventory.Inventory):
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def __init__(self, tree_id, mapping, store, revision_id):
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super(GitInventory, self).__init__(revision_id=revision_id)
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self.mapping = mapping
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self.root = GitInventoryDirectory(self, None, tree_id, u"", u"", False)
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def _get_ie(self, path):
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parts = path.split("/")
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ie = ie.children[name]
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def has_filename(self, path):
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def has_id(self, file_id):
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self.id2path(file_id)
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except errors.NoSuchId:
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def id2path(self, file_id):
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path = self.mapping.parse_file_id(file_id)
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ie = self._get_ie(path)
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assert ie.path == path
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raise errors.NoSuchId(None, file_id)
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def path2id(self, path):
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return self._get_ie(path).file_id
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def __getitem__(self, file_id):
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if file_id == inventory.ROOT_ID:
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path = self.mapping.parse_file_id(file_id)
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return self._get_ie(path)
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raise errors.NoSuchId(None, file_id)
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class GitIndexInventory(inventory.Inventory):
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"""Inventory that retrieves its contents from an index file."""
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def __init__(self, basis_inventory, mapping, index, store):
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super(GitIndexInventory, self).__init__(revision_id=None, root_id=basis_inventory.root.file_id)
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self.basis_inv = basis_inventory
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self.mapping = mapping
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pb = ui.ui_factory.nested_progress_bar()
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for i, (path, value) in enumerate(self.index.iteritems()):
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pb.update("creating working inventory from index",
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assert isinstance(path, str)
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assert isinstance(value, tuple) and len(value) == 10
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(ctime, mtime, ino, dev, mode, uid, gid, size, sha, flags) = value
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old_ie = self.basis_inv._get_ie(path)
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file_id = self.mapping.generate_file_id(path)
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file_id = old_ie.file_id
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if stat.S_ISLNK(mode):
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assert stat.S_ISREG(mode)
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if old_ie is not None and old_ie.hexsha == sha:
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# Hasn't changed since basis inv
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self.add_parents(path)
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ie = self.add_path(path, kind, file_id, self.add_parents(path))
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data = store[sha].data
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if kind == "symlink":
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ie.symlink_target = data
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ie.text_sha1 = osutils.sha_string(data)
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ie.text_size = len(data)
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def add_parents(self, path):
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dirname, _ = osutils.split(path)
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file_id = self.path2id(dirname)
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parent_fid = self.add_parents(dirname)
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ie = self.add_path(dirname, 'directory',
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self.mapping.generate_file_id(dirname), parent_fid)
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if ie.file_id in self.basis_inv:
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ie.revision = self.basis_inv[ie.file_id].revision
added
removed
inventory.py
