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# Copyright (C) 2005-2006 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 2 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.inventory import Inventory
from bzrlib import osutils, urlutils
from bzrlib.trace import mutter
from bzrlib.revisiontree import RevisionTree
import os
import md5
from cStringIO import StringIO
import urllib
import svn.core, svn.wc, svn.delta
from svn.core import Pool
# Deal with Subversion 1.5 and the patched Subversion 1.4 (which are
# slightly different).
if hasattr(svn.delta, 'tx_invoke_window_handler'):
def apply_txdelta_handler(src_stream, target_stream, pool):
assert hasattr(src_stream, 'read')
assert hasattr(target_stream, 'write')
window_handler, baton = svn.delta.tx_apply(src_stream, target_stream,
None, pool)
def wrapper(window):
window_handler(window, baton)
return wrapper
else:
def apply_txdelta_handler(src_stream, target_stream, pool):
assert hasattr(src_stream, 'read')
assert hasattr(target_stream, 'write')
ret = svn.delta.svn_txdelta_apply(src_stream, target_stream, None, pool)
def wrapper(window):
svn.delta.invoke_txdelta_window_handler(
ret[1], window, ret[2])
return wrapper
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
pool = Pool()
(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, pool)
self.file_data = {}
root_repos = repository.transport.get_svn_repos_root()
reporter = repository.transport.do_switch(
self.revnum, True,
urlutils.join(root_repos, self.branch_path), editor, pool)
reporter.set_path("", 0, True, None, pool)
reporter.finish_report(pool)
pool.destroy()
def get_file_lines(self, file_id):
return osutils.split_lines(self.file_data[file_id])
class TreeBuildEditor(svn.delta.Editor):
"""Builds a tree given Subversion tree transform calls."""
def __init__(self, tree, pool):
self.tree = tree
self.repository = tree._repository
self.last_revnum = {}
self.dir_revnum = {}
self.dir_ignores = {}
self.pool = pool
def set_target_revision(self, revnum):
self.revnum = revnum
def open_root(self, revnum, baton):
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 file_id
def add_directory(self, path, parent_baton, copyfrom_path, copyfrom_revnum, pool):
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 file_id
def change_dir_prop(self, id, name, value, pool):
from mapping import (SVN_PROP_BZR_ANCESTRY,
SVN_PROP_BZR_PREFIX, SVN_PROP_BZR_REVISION_INFO,
SVN_PROP_BZR_FILEIDS, SVN_PROP_BZR_REVISION_ID,
SVN_PROP_BZR_BRANCHING_SCHEME, SVN_PROP_BZR_MERGE)
if name == svn.core.SVN_PROP_ENTRY_COMMITTED_REV:
self.dir_revnum[id] = int(value)
elif name == svn.core.SVN_PROP_IGNORE:
self.dir_ignores[id] = value
elif name.startswith(SVN_PROP_BZR_ANCESTRY):
if id != self.tree._inventory.root.file_id:
mutter('%r set on non-root dir!' % name)
return
elif name in (SVN_PROP_BZR_FILEIDS, SVN_PROP_BZR_BRANCHING_SCHEME):
if id != self.tree._inventory.root.file_id:
mutter('%r set on non-root dir!' % name)
return
elif name in (svn.core.SVN_PROP_ENTRY_COMMITTED_DATE,
svn.core.SVN_PROP_ENTRY_LAST_AUTHOR,
svn.core.SVN_PROP_ENTRY_LOCK_TOKEN,
svn.core.SVN_PROP_ENTRY_UUID,
svn.core.SVN_PROP_EXECUTABLE):
pass
elif name.startswith(svn.core.SVN_PROP_WC_PREFIX):
pass
elif (name == SVN_PROP_BZR_REVISION_INFO or
name.startswith(SVN_PROP_BZR_REVISION_ID)):
pass
elif name == SVN_PROP_BZR_MERGE:
pass
elif (name.startswith(svn.core.SVN_PROP_PREFIX) or
name.startswith(SVN_PROP_BZR_PREFIX)):
mutter('unsupported dir property %r' % name)
def change_file_prop(self, id, name, value, pool):
from mapping import SVN_PROP_BZR_PREFIX
if name == svn.core.SVN_PROP_EXECUTABLE:
self.is_executable = (value != None)
elif name == svn.core.SVN_PROP_SPECIAL:
self.is_symlink = (value != None)
elif name == svn.core.SVN_PROP_ENTRY_COMMITTED_REV:
self.last_file_rev = int(value)
elif name in (svn.core.SVN_PROP_ENTRY_COMMITTED_DATE,
svn.core.SVN_PROP_ENTRY_LAST_AUTHOR,
svn.core.SVN_PROP_ENTRY_LOCK_TOKEN,
svn.core.SVN_PROP_ENTRY_UUID,
svn.core.SVN_PROP_MIME_TYPE):
pass
elif name.startswith(svn.core.SVN_PROP_WC_PREFIX):
pass
elif (name.startswith(svn.core.SVN_PROP_PREFIX) or
name.startswith(SVN_PROP_BZR_PREFIX)):
mutter('unsupported file property %r' % name)
def add_file(self, path, parent_id, copyfrom_path, copyfrom_revnum, baton):
path = path.decode("utf-8")
self.is_symlink = False
self.is_executable = False
return path
def close_dir(self, id):
if id in self.tree._inventory and self.dir_ignores.has_key(id):
self.tree._inventory[id].ignores = self.dir_ignores[id]
def close_file(self, path, checksum):
file_id, revision_id = self.tree.id_map[path]
if self.is_symlink:
ie = self.tree._inventory.add_path(path, 'symlink', file_id)
else:
ie = self.tree._inventory.add_path(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 close_edit(self):
pass
def abort_edit(self):
pass
def apply_textdelta(self, file_id, base_checksum):
self.file_stream = StringIO()
return apply_txdelta_handler(StringIO(""), self.file_stream, self.pool)
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, wc):
props = svn.wc.get_prop_diffs(self.workingtree.abspath(relpath), wc)
if isinstance(props, list): # Subversion 1.5
props = props[1]
if props.has_key(svn.core.SVN_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(svn.core.SVN_PROP_EXECUTABLE)
ie.revision = revid
return ie
def find_ids(entry):
relpath = urllib.unquote(entry.url[len(entry.repos):].strip("/"))
if entry.schedule in (svn.wc.schedule_normal,
svn.wc.schedule_delete,
svn.wc.schedule_replace):
return self.id_map[workingtree.branch.unprefix(relpath)]
return (None, None)
def add_dir_to_inv(relpath, wc, parent_id):
entries = svn.wc.entries_read(wc, 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 == "":
self._inventory.revision_id = revid
for name in entries:
if name == "":
continue
subrelpath = os.path.join(relpath, name)
entry = entries[name]
assert entry
if entry.kind == svn.core.svn_node_dir:
subwc = svn.wc.adm_open3(wc,
self.workingtree.abspath(subrelpath),
False, 0, None)
try:
add_dir_to_inv(subrelpath, subwc, id)
finally:
svn.wc.adm_close(subwc)
else:
(subid, subrevid) = find_ids(entry)
if subid is not None:
add_file_to_inv(subrelpath, subid, subrevid, wc)
wc = workingtree._get_wc()
try:
add_dir_to_inv("", wc, None)
finally:
svn.wc.adm_close(wc)
def _abspath(self, relpath):
return svn.wc.get_pristine_copy_path(self.workingtree.abspath(relpath))
def get_file_lines(self, file_id):
base_copy = self._abspath(self.id2path(file_id))
return osutils.split_lines(open(base_copy).read())
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