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# Copyright (C) 2004, 2005 by Martin Pool
# Copyright (C) 2005 by Canonical Ltd
# 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
# TODO: Check ancestries are correct for every revision: includes
# every committed so far, and in a reasonable order.
import bzrlib.ui
from bzrlib.trace import note, warning
from bzrlib.osutils import rename, sha_string
def _update_store_entry(obj, obj_id, branch, store_name, store):
"""This is just a meta-function, which handles both revision entries
and inventory entries.
"""
from bzrlib.trace import mutter
import tempfile, os, errno
obj_tmp = tempfile.TemporaryFile()
obj.write_xml(obj_tmp)
obj_tmp.seek(0)
tmpfd, tmp_path = tempfile.mkstemp(prefix=obj_id, suffix='.gz',
dir=branch.controlfilename(store_name))
os.close(tmpfd)
try:
orig_obj_path = branch.controlfilename([store_name, obj_id+'.gz'])
# Remove the old entry out of the way
rename(orig_obj_path, tmp_path)
try:
# TODO: We may need to handle the case where the old
# entry was not compressed (and thus did not end with .gz)
store.add(obj_tmp, obj_id) # Add the new one
os.remove(tmp_path) # Remove the old name
mutter(' Updated %s entry {%s}' % (store_name, obj_id))
except:
# On any exception, restore the old entry
rename(tmp_path, orig_obj_path)
raise
finally:
if os.path.exists(tmp_path):
# Unfortunately, the next command might throw
# an exception, which will mask a previous exception.
os.remove(tmp_path)
obj_tmp.close()
def _update_revision_entry(rev, branch):
"""After updating the values in a revision, make sure to
write out the data, but try to do it in an atomic manner.
:param rev: The Revision object to store
:param branch: The Branch object where this Revision is to be stored.
"""
_update_store_entry(rev, rev.revision_id, branch,
'revision-store', branch.revision_store)
def _update_inventory_entry(inv, inv_id, branch):
"""When an inventory has been modified (such as by adding a unique tree root)
this atomically re-generates the file.
:param inv: The Inventory
:param inv_id: The inventory id for this inventory
:param branch: The Branch where this entry will be stored.
"""
raise NotImplementedError("can't update existing inventory entry")
def check(branch):
"""Run consistency checks on a branch.
TODO: Also check non-mainline revisions mentioned as parents.
TODO: Check for extra files in the control directory.
"""
from bzrlib.trace import mutter
from bzrlib.errors import BzrCheckError, NoSuchRevision
from bzrlib.osutils import fingerprint_file
from bzrlib.inventory import ROOT_ID
from bzrlib.branch import gen_root_id
branch.lock_read()
try:
last_rev_id = None
missing_inventory_sha_cnt = 0
missing_revision_sha_cnt = 0
missing_revision_cnt = 0
history = branch.revision_history()
revno = 0
revcount = len(history)
checked_text_count = 0
progress = bzrlib.ui.ui_factory.progress_bar()
for rev_id in history:
revno += 1
progress.update('checking revision', revno, revcount)
# mutter(' revision {%s}' % rev_id)
rev = branch.get_revision(rev_id)
if rev.revision_id != rev_id:
raise BzrCheckError('wrong internal revision id in revision {%s}'
% rev_id)
# check the previous history entry is a parent of this entry
if rev.parent_ids:
if last_rev_id is None:
raise BzrCheckError("revision {%s} has %d parents, but is the "
"start of the branch"
% (rev_id, len(rev.parent_ids)))
for parent_id in rev.parent_ids:
if parent_id == last_rev_id:
break
else:
raise BzrCheckError("previous revision {%s} not listed among "
"parents of {%s}"
% (last_rev_id, rev_id))
elif last_rev_id:
raise BzrCheckError("revision {%s} has no parents listed "
"but preceded by {%s}"
% (rev_id, last_rev_id))
## TODO: Check all the required fields are present on the revision.
if rev.inventory_sha1:
inv_sha1 = branch.get_inventory_sha1(rev_id)
if inv_sha1 != rev.inventory_sha1:
raise BzrCheckError('Inventory sha1 hash doesn\'t match'
' value in revision {%s}' % rev_id)
else:
missing_inventory_sha_cnt += 1
mutter("no inventory_sha1 on revision {%s}" % rev_id)
tree = branch.revision_tree(rev_id)
inv = tree.inventory
seen_ids = {}
seen_names = {}
## p('revision %d/%d file ids' % (revno, revcount))
for file_id in inv:
if file_id in seen_ids:
raise BzrCheckError('duplicated file_id {%s} '
'in inventory for revision {%s}'
% (file_id, rev_id))
seen_ids[file_id] = True
i = 0
for file_id in inv:
i += 1
if i & 31 == 0:
progress.tick()
ie = inv[file_id]
if ie.parent_id != None:
if ie.parent_id not in seen_ids:
raise BzrCheckError('missing parent {%s} in inventory for revision {%s}'
% (ie.parent_id, rev_id))
if ie.kind == 'file':
text = tree.get_file_text(file_id)
checked_text_count += 1
if ie.text_size != len(text):
raise BzrCheckError('text {%s} wrong size' % ie.text_id)
if ie.text_sha1 != sha_string(text):
raise BzrCheckError('text {%s} wrong sha1' % ie.text_id)
elif ie.kind == 'directory':
if ie.text_sha1 != None or ie.text_size != None or ie.text_id != None:
raise BzrCheckError('directory {%s} has text in revision {%s}'
% (file_id, rev_id))
progress.tick()
for path, ie in inv.iter_entries():
if path in seen_names:
raise BzrCheckError('duplicated path %s '
'in inventory for revision {%s}'
% (path, rev_id))
seen_names[path] = True
last_rev_id = rev_id
finally:
branch.unlock()
progress.clear()
note('checked %d revisions, %d file texts' % (revcount, checked_text_count))
if missing_inventory_sha_cnt:
note('%d revisions are missing inventory_sha1' % missing_inventory_sha_cnt)
##if missing_revision_sha_cnt:
## note('%d parent links are missing revision_sha1' % missing_revision_sha_cnt)
if missing_revision_cnt:
note('%d revisions are mentioned but not present' % missing_revision_cnt)
if missing_revision_cnt:
print '%d revisions are mentioned but not present' % missing_revision_cnt
# stub this out for now because the main bzr branch has references
# to revisions that aren't present in the store -- mbp 20050804
# if (missing_inventory_sha_cnt
# or missing_revision_sha_cnt):
# print ' (use "bzr upgrade" to fix them)'
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