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# Copyright (C) 2005-2008 Jelmer Vernooij <jelmer@samba.org>
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""Access to stored Subversion basis trees."""
from bzrlib import osutils, urlutils
from bzrlib.branch import Branch
from bzrlib.inventory import Inventory, InventoryDirectory, TreeReference
from bzrlib.revision import CURRENT_REVISION
from bzrlib.trace import mutter
from bzrlib.revisiontree import RevisionTree
import os
import md5
from cStringIO import StringIO
import urllib
from bzrlib.plugins.svn import errors, properties, core, wc
from bzrlib.plugins.svn.delta import apply_txdelta_handler
def parse_externals_description(base_url, val):
"""Parse an svn:externals property value.
:param base_url: URL on which the property is set. Used for
relative externals.
:returns: dictionary with local names as keys, (revnum, url)
as value. revnum is the revision number and is
set to None if not applicable.
"""
ret = {}
for l in val.splitlines():
if l == "" or l[0] == "#":
continue
pts = l.rsplit(None, 2)
if len(pts) == 3:
if not pts[1].startswith("-r"):
raise errors.InvalidExternalsDescription()
ret[pts[0]] = (int(pts[1][2:]), urlutils.join(base_url, pts[2]))
elif len(pts) == 2:
if pts[1].startswith("//"):
raise NotImplementedError("Relative to the scheme externals not yet supported")
if pts[1].startswith("^/"):
raise NotImplementedError("Relative to the repository root externals not yet supported")
ret[pts[0]] = (None, urlutils.join(base_url, pts[1]))
else:
raise errors.InvalidExternalsDescription()
return ret
def inventory_add_external(inv, parent_id, path, revid, ref_revnum, url):
"""Add an svn:externals entry to an inventory as a tree-reference.
:param inv: Inventory to add to.
:param parent_id: File id of directory the entry was set on.
:param path: Path of the entry, relative to entry with parent_id.
:param revid: Revision to store in newly created inventory entries.
:param ref_revnum: Referenced revision of tree that's being referenced, or
None if no specific revision is being referenced.
:param url: URL of referenced tree.
"""
assert ref_revnum is None or isinstance(ref_revnum, int)
assert revid is None or isinstance(revid, str)
(dir, name) = os.path.split(path)
parent = inv[parent_id]
if dir != "":
for part in dir.split("/"):
if parent.children.has_key(part):
parent = parent.children[part]
else:
# Implicitly add directory if it doesn't exist yet
# TODO: Generate a file id
parent = inv.add(InventoryDirectory('someid', part,
parent_id=parent.file_id))
parent.revision = revid
reference_branch = Branch.open(url)
file_id = reference_branch.get_root_id()
ie = TreeReference(file_id, name, parent.file_id, revision=revid)
if ref_revnum is not None:
ie.reference_revision = reference_branch.get_rev_id(ref_revnum)
inv.add(ie)
class SvnRevisionTree(RevisionTree):
"""A tree that existed in a historical Subversion revision."""
def __init__(self, repository, revision_id):
self._repository = repository
self._revision_id = revision_id
(self.branch_path, self.revnum, mapping) = repository.lookup_revision_id(revision_id)
self._inventory = Inventory()
self.id_map = repository.get_fileid_map(self.revnum, self.branch_path,
mapping)
editor = TreeBuildEditor(self)
self.file_data = {}
root_repos = repository.transport.get_svn_repos_root()
conn = repository.transport.get_connection()
reporter = conn.do_switch(
self.revnum, "", True,
urlutils.join(root_repos, self.branch_path), editor)
reporter.set_path("", 0, True, None)
reporter.finish()
def get_file_lines(self, file_id):
return osutils.split_lines(self.file_data[file_id])
class TreeBuildEditor(object):
"""Builds a tree given Subversion tree transform calls."""
def __init__(self, tree):
self.tree = tree
self.repository = tree._repository
self.last_revnum = {}
def set_target_revision(self, revnum):
self.revnum = revnum
def open_root(self, revnum):
file_id, revision_id = self.tree.id_map[""]
ie = self.tree._inventory.add_path("", 'directory', file_id)
ie.revision = revision_id
self.tree._inventory.revision_id = revision_id
return DirectoryTreeEditor(self.tree, file_id)
def close(self):
pass
def abort(self):
pass
class DirectoryTreeEditor(object):
def __init__(self, tree, file_id):
self.tree = tree
self.file_id = file_id
def add_directory(self, path, copyfrom_path=None, copyfrom_revnum=-1):
path = path.decode("utf-8")
file_id, revision_id = self.tree.id_map[path]
ie = self.tree._inventory.add_path(path, 'directory', file_id)
ie.revision = revision_id
return DirectoryTreeEditor(self.tree, file_id)
def change_prop(self, name, value):
if name in (properties.PROP_ENTRY_COMMITTED_DATE,
properties.PROP_ENTRY_LAST_AUTHOR,
properties.PROP_ENTRY_LOCK_TOKEN,
properties.PROP_ENTRY_COMMITTED_REV,
properties.PROP_ENTRY_UUID,
properties.PROP_IGNORE,
properties.PROP_EXECUTABLE):
pass
elif name.startswith(properties.PROP_WC_PREFIX):
pass
elif name.startswith(properties.PROP_PREFIX):
mutter('unsupported dir property %r', name)
def add_file(self, path, copyfrom_path=None, copyfrom_revnum=-1):
path = path.decode("utf-8")
self.is_symlink = False
self.is_executable = False
return FileTreeEditor(self.tree, path)
def close(self):
pass
class FileTreeEditor(object):
def __init__(self, tree, path):
self.tree = tree
self.path = path
self.is_executable = False
self.is_symlink = False
self.last_file_rev = None
def change_prop(self, name, value):
if name == properties.PROP_EXECUTABLE:
self.is_executable = (value != None)
elif name == properties.PROP_SPECIAL:
self.is_symlink = (value != None)
elif name == properties.PROP_EXTERNALS:
mutter('%r property on file!', name)
elif name == properties.PROP_ENTRY_COMMITTED_REV:
self.last_file_rev = int(value)
elif name in (properties.PROP_ENTRY_COMMITTED_DATE,
properties.PROP_ENTRY_LAST_AUTHOR,
properties.PROP_ENTRY_LOCK_TOKEN,
properties.PROP_ENTRY_UUID,
properties.PROP_MIME_TYPE):
pass
elif name.startswith(properties.PROP_WC_PREFIX):
pass
elif name.startswith(properties.PROP_PREFIX):
mutter('unsupported file property %r', name)
def close(self, checksum=None):
file_id, revision_id = self.tree.id_map[self.path]
if self.is_symlink:
ie = self.tree._inventory.add_path(self.path, 'symlink', file_id)
else:
ie = self.tree._inventory.add_path(self.path, 'file', file_id)
ie.revision = revision_id
if self.file_stream:
self.file_stream.seek(0)
file_data = self.file_stream.read()
else:
file_data = ""
actual_checksum = md5.new(file_data).hexdigest()
assert(checksum is None or checksum == actual_checksum,
"checksum mismatch: %r != %r" % (checksum, actual_checksum))
if self.is_symlink:
ie.symlink_target = file_data[len("link "):]
ie.text_sha1 = None
ie.text_size = None
ie.text_id = None
ie.executable = False
else:
ie.text_sha1 = osutils.sha_string(file_data)
ie.text_size = len(file_data)
self.tree.file_data[file_id] = file_data
ie.executable = self.is_executable
self.file_stream = None
def apply_textdelta(self, base_checksum):
self.file_stream = StringIO()
return apply_txdelta_handler("", self.file_stream)
class SvnBasisTree(RevisionTree):
"""Optimized version of SvnRevisionTree."""
def __init__(self, workingtree):
self.workingtree = workingtree
self._revision_id = workingtree.branch.generate_revision_id(
workingtree.base_revnum)
self.id_map = workingtree.branch.repository.get_fileid_map(
workingtree.base_revnum,
workingtree.branch.get_branch_path(workingtree.base_revnum),
workingtree.branch.mapping)
self._inventory = Inventory(root_id=None)
self._repository = workingtree.branch.repository
def add_file_to_inv(relpath, id, revid, adm):
(propchanges, props) = adm.get_prop_diffs(self.workingtree.abspath(relpath).encode("utf-8"))
if props.has_key(properties.PROP_SPECIAL):
ie = self._inventory.add_path(relpath, 'symlink', id)
ie.symlink_target = open(self._abspath(relpath)).read()[len("link "):]
ie.text_sha1 = None
ie.text_size = None
ie.text_id = None
ie.executable = False
else:
ie = self._inventory.add_path(relpath, 'file', id)
data = osutils.fingerprint_file(open(self._abspath(relpath)))
ie.text_sha1 = data['sha1']
ie.text_size = data['size']
ie.executable = props.has_key(properties.PROP_EXECUTABLE)
ie.revision = revid
return ie
def find_ids(entry):
relpath = urllib.unquote(entry.url[len(entry.repos):].strip("/"))
if entry.schedule in (wc.SCHEDULE_NORMAL,
wc.SCHEDULE_DELETE,
wc.SCHEDULE_REPLACE):
return self.id_map[workingtree.branch.unprefix(relpath.decode("utf-8"))]
return (None, None)
def add_dir_to_inv(relpath, adm, parent_id):
entries = adm.entries_read(False)
entry = entries[""]
(id, revid) = find_ids(entry)
if id == None:
return
# First handle directory itself
ie = self._inventory.add_path(relpath, 'directory', id)
ie.revision = revid
if relpath == u"":
self._inventory.revision_id = revid
for name, entry in entries.items():
name = name.decode("utf-8")
if name == u"":
continue
assert isinstance(relpath, unicode)
assert isinstance(name, unicode)
subrelpath = os.path.join(relpath, name)
assert entry
if entry.kind == core.NODE_DIR:
subwc = wc.WorkingCopy(adm,
self.workingtree.abspath(subrelpath))
try:
add_dir_to_inv(subrelpath, subwc, id)
finally:
subwc.close()
else:
(subid, subrevid) = find_ids(entry)
if subid is not None:
add_file_to_inv(subrelpath, subid, subrevid, adm)
adm = workingtree._get_wc()
try:
add_dir_to_inv(u"", adm, None)
finally:
adm.close()
def _abspath(self, relpath):
return wc.get_pristine_copy_path(self.workingtree.abspath(relpath).encode("utf-8"))
def get_file_lines(self, file_id):
base_copy = self._abspath(self.id2path(file_id))
return osutils.split_lines(open(base_copy).read())
def annotate_iter(self, file_id,
default_revision=CURRENT_REVISION):
raise NotImplementedError(self.annotate_iter)
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