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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
def check(branch, update=False):
"""Run consistency checks on a branch.
If update is True, for revisions missing certain information
(right now this is inventory_sha1 and revision_sha1),
update them to include the appropriate values.
"""
import sys
from bzrlib.trace import mutter
from bzrlib.errors import BzrCheckError
from bzrlib.osutils import fingerprint_file
from bzrlib.progress import ProgressBar
out = sys.stdout
pb = ProgressBar(show_spinner=True)
last_ptr = None
checked_revs = {}
missing_inventory_sha_cnt = 0
history = branch.revision_history()
revno = 0
revcount = len(history)
checked_texts = {}
updated_revisions = []
# Set to True in the case that the previous revision entry
# was updated, since this will affect future revision entries
updated_previous_revision = False
for rid in history:
revno += 1
pb.update('checking revision', revno, revcount)
mutter(' revision {%s}' % rid)
rev = branch.get_revision(rid)
if rev.revision_id != rid:
raise BzrCheckError('wrong internal revision id in revision {%s}' % rid)
if rev.precursor != last_ptr:
raise BzrCheckError('mismatched precursor in revision {%s}' % rid)
last_ptr = rid
if rid in checked_revs:
raise BzrCheckError('repeated revision {%s}' % rid)
checked_revs[rid] = True
## TODO: Check all the required fields are present on the revision.
updated = False
if rev.inventory_sha1:
#mutter(' checking inventory hash {%s}' % rev.inventory_sha1)
inv_sha1 = branch.get_inventory_sha1(rev.inventory_id)
if inv_sha1 != rev.inventory_sha1:
raise BzrCheckError('Inventory sha1 hash doesn\'t match'
' value in revision {%s}' % rid)
elif update:
inv_sha1 = branch.get_inventory_sha1(rev.inventory_id)
rev.inventory_sha1 = inv_sha1
updated = True
else:
missing_inventory_sha_cnt += 1
mutter("no inventory_sha1 on revision {%s}" % rid)
if rev.precursor:
if rev.precursor_sha1:
precursor_sha1 = branch.get_revision_sha1(rev.precursor)
if updated_previous_revision:
# we don't expect the hashes to match, because
# we had to modify the previous revision_history entry.
rev.precursor_sha1 = precursor_sha1
updated = True
else:
#mutter(' checking precursor hash {%s}' % rev.precursor_sha1)
if rev.precursor_sha1 != precursor_sha1:
raise BzrCheckError('Precursor sha1 hash doesn\'t match'
' value in revision {%s}' % rid)
elif update:
precursor_sha1 = branch.get_revision_sha1(rev.precursor)
rev.precursor_sha1 = precursor_sha1
updated = True
if updated:
updated_previous_revision = True
# We had to update this revision entries hashes
# Now we need to write out a new value
# This is a little bit invasive, since we are *rewriting* a
# revision entry. I'm not supremely happy about it, but
# there should be *some* way of making old entries have
# the full meta information.
import tempfile, os, errno
rev_tmp = tempfile.TemporaryFile()
rev.write_xml(rev_tmp)
rev_tmp.seek(0)
tmpfd, tmp_path = tempfile.mkstemp(prefix=rid, suffix='.gz',
dir=branch.controlfilename('revision-store'))
os.close(tmpfd)
def special_rename(p1, p2):
if sys.platform == 'win32':
try:
os.remove(p2)
except OSError, e:
if e.errno != e.ENOENT:
raise
os.rename(p1, p2)
try:
# TODO: We may need to handle the case where the old revision
# entry was not compressed (and thus did not end with .gz)
# Remove the old revision entry out of the way
rev_path = branch.controlfilename(['revision-store', rid+'.gz'])
special_rename(rev_path, tmp_path)
branch.revision_store.add(rev_tmp, rid) # Add the new one
os.remove(tmp_path) # Remove the old name
mutter(' Updated revision entry {%s}' % rid)
except:
# On any exception, restore the old entry
special_rename(tmp_path, rev_path)
raise
rev_tmp.close()
updated_revisions.append(rid)
else:
updated_previous_revision = False
inv = branch.get_inventory(rev.inventory_id)
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, rid))
seen_ids[file_id] = True
i = 0
len_inv = len(inv)
for file_id in inv:
i += 1
if i & 31 == 0:
pb.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, rid))
if ie.kind == 'file':
if ie.text_id in checked_texts:
fp = checked_texts[ie.text_id]
else:
if not ie.text_id in branch.text_store:
raise BzrCheckError('text {%s} not in text_store' % ie.text_id)
tf = branch.text_store[ie.text_id]
fp = fingerprint_file(tf)
checked_texts[ie.text_id] = fp
if ie.text_size != fp['size']:
raise BzrCheckError('text {%s} wrong size' % ie.text_id)
if ie.text_sha1 != fp['sha1']:
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, rid))
pb.tick()
for path, ie in inv.iter_entries():
if path in seen_names:
raise BzrCheckError('duplicated path %r '
'in inventory for revision {%s}'
% (path, revid))
seen_names[path] = True
pb.clear()
print 'checked %d revisions, %d file texts' % (revcount, len(checked_texts))
if updated_revisions:
print '%d revisions updated to current format' % len(updated_revisions)
if missing_inventory_sha_cnt:
print '%d revisions are missing inventory_sha1' % missing_inventory_sha_cnt
print ' (use bzr check --update to fix them)'
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