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- Committer: Robert Collins
- Date: 2005-09-30 02:54:51 UTC
- mfrom: (1395)
- mto: This revision was merged to the branch mainline in revision 1397.
- Revision ID: robertc@robertcollins.net-20050930025451-47b9e412202be44b
symlink and weaves, whaddya know
- files added:
- NEWS.developers
- files removed:
- bzrlib/upgrade.py
- files renamed:
- tools/testweave.py => bzrlib/selftest/test_weave.py
- tools/history2weaves.py => bzrlib/upgrade.py
- bzrlib/newinventory.py => contrib/newinventory.py
- files modified:
- .bzrignore
added
removed
bzrlib/check.py
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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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# TODO: Check ancestries are correct for every revision: includes
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# every committed so far, and in a reasonable order.
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# TODO: Also check non-mainline revisions mentioned as parents.
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# TODO: Check for extra files in the control directory.
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# TODO: Check revision, inventory and entry objects have all
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# required fields.
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import bzrlib.ui
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from bzrlib.trace import note, warning
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def _update_store_entry(obj, obj_id, branch, store_name, store):
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"""This is just a meta-function, which handles both revision entries
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and inventory entries.
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"""
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from bzrlib.trace import mutter
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import tempfile, os, errno
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from osutils import rename
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obj_tmp = tempfile.TemporaryFile()
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obj.write_xml(obj_tmp)
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obj_tmp.seek(0)
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tmpfd, tmp_path = tempfile.mkstemp(prefix=obj_id, suffix='.gz',
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dir=branch.controlfilename(store_name))
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os.close(tmpfd)
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try:
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orig_obj_path = branch.controlfilename([store_name, obj_id+'.gz'])
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# Remove the old entry out of the way
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rename(orig_obj_path, tmp_path)
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from bzrlib.osutils import rename, sha_string, fingerprint_file
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from bzrlib.trace import mutter
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from bzrlib.errors import BzrCheckError, NoSuchRevision
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from bzrlib.inventory import ROOT_ID
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from bzrlib.branch import gen_root_id
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class Check(object):
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"""Check a branch"""
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def __init__(self, branch):
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self.branch = branch
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branch.lock_read()
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try:
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# TODO: We may need to handle the case where the old
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# entry was not compressed (and thus did not end with .gz)
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store.add(obj_tmp, obj_id) # Add the new one
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os.remove(tmp_path) # Remove the old name
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mutter(' Updated %s entry {%s}' % (store_name, obj_id))
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except:
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# On any exception, restore the old entry
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rename(tmp_path, orig_obj_path)
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raise
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finally:
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if os.path.exists(tmp_path):
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# Unfortunately, the next command might throw
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# an exception, which will mask a previous exception.
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os.remove(tmp_path)
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obj_tmp.close()
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def _update_revision_entry(rev, branch):
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"""After updating the values in a revision, make sure to
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write out the data, but try to do it in an atomic manner.
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:param rev: The Revision object to store
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:param branch: The Branch object where this Revision is to be stored.
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"""
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_update_store_entry(rev, rev.revision_id, branch,
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'revision-store', branch.revision_store)
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def _update_inventory_entry(inv, inv_id, branch):
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"""When an inventory has been modified (such as by adding a unique tree root)
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this atomically re-generates the file.
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:param inv: The Inventory
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:param inv_id: The inventory id for this inventory
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:param branch: The Branch where this entry will be stored.
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"""
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_update_store_entry(inv, inv_id, branch,
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'inventory-store', branch.inventory_store)
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def check(branch):
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"""Run consistency checks on a branch.
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TODO: Also check non-mainline revisions mentioned as parents.
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TODO: Check for extra files in the control directory.
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"""
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from bzrlib.trace import mutter
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from bzrlib.errors import BzrCheckError, NoSuchRevision
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from bzrlib.osutils import fingerprint_file
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from bzrlib.inventory import ROOT_ID
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from bzrlib.branch import gen_root_id
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branch.lock_read()
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try:
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last_rev_id = None
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missing_inventory_sha_cnt = 0
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missing_revision_sha_cnt = 0
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missing_revision_cnt = 0
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branch.weave_store.enable_cache = True
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branch.control_weaves.enable_cache = True
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self.run()
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finally:
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branch.unlock()
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branch.weave_store.enable_cache = False
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branch.control_weaves.enable_cache = False
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def run(self):
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branch = self.branch
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self.checked_text_cnt = 0
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self.checked_rev_cnt = 0
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self.repeated_text_cnt = 0
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self.missing_inventory_sha_cnt = 0
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self.missing_revision_cnt = 0
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# maps (file-id, version) -> sha1
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self.checked_texts = {}
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history = branch.revision_history()
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revno = 0
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revcount = len(history)
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mismatch_inv_id = []
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# for all texts checked, text_id -> sha1
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checked_texts = {}
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progress = bzrlib.ui.ui_factory.progress_bar()
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last_rev_id = None
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self.progress = bzrlib.ui.ui_factory.progress_bar()
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for rev_id in history:
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self.progress.update('checking revision', revno, revcount)
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revno += 1
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progress.update('checking revision', revno, revcount)
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# mutter(' revision {%s}' % rev_id)
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rev = branch.get_revision(rev_id)
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if rev.revision_id != rev_id:
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raise BzrCheckError('wrong internal revision id in revision {%s}'
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% rev_id)
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# check the previous history entry is a parent of this entry
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if rev.parents:
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if last_rev_id is None:
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raise BzrCheckError("revision {%s} has %d parents, but is the "
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"start of the branch"
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% (rev_id, len(rev.parents)))
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for prr in rev.parents:
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if prr.revision_id == last_rev_id:
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break
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else:
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raise BzrCheckError("previous revision {%s} not listed among "
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"parents of {%s}"
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% (last_rev_id, rev_id))
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for prr in rev.parents:
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if prr.revision_sha1 is None:
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missing_revision_sha_cnt += 1
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continue
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prid = prr.revision_id
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try:
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actual_sha = branch.get_revision_sha1(prid)
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except NoSuchRevision:
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missing_revision_cnt += 1
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mutter("parent {%s} of {%s} not present in store",
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prid, rev_id)
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continue
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if prr.revision_sha1 != actual_sha:
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raise BzrCheckError("mismatched revision sha1 for "
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"parent {%s} of {%s}: %s vs %s"
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% (prid, rev_id,
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prr.revision_sha1, actual_sha))
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elif last_rev_id:
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raise BzrCheckError("revision {%s} has no parents listed but preceded "
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"by {%s}"
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% (rev_id, last_rev_id))
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if rev.inventory_id != rev_id:
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mismatch_inv_id.append(rev_id)
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## TODO: Check all the required fields are present on the revision.
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if rev.inventory_sha1:
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inv_sha1 = branch.get_inventory_sha1(rev.inventory_id)
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if inv_sha1 != rev.inventory_sha1:
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raise BzrCheckError('Inventory sha1 hash doesn\'t match'
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' value in revision {%s}' % rev_id)
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self.check_one_rev(rev_id, last_rev_id)
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last_rev_id = rev_id
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self.progress.clear()
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self.report_results()
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def report_results(self):
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note('checked branch %s format %d',
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self.branch.base,
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self.branch._branch_format)
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note('%6d revisions', self.checked_rev_cnt)
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note('%6d unique file texts', self.checked_text_cnt)
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note('%6d repeated file texts', self.repeated_text_cnt)
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if self.missing_inventory_sha_cnt:
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note('%d revisions are missing inventory_sha1',
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self.missing_inventory_sha_cnt)
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if self.missing_revision_cnt:
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note('%d revisions are mentioned but not present',
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self.missing_revision_cnt)
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def check_one_rev(self, rev_id, last_rev_id):
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"""Check one revision.
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rev_id - the one to check
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last_rev_id - the previous one on the mainline, if any.
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"""
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# mutter(' revision {%s}' % rev_id)
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branch = self.branch
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rev = branch.get_revision(rev_id)
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if rev.revision_id != rev_id:
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raise BzrCheckError('wrong internal revision id in revision {%s}'
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% rev_id)
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# check the previous history entry is a parent of this entry
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if rev.parent_ids:
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if last_rev_id is None:
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raise BzrCheckError("revision {%s} has %d parents, but is the "
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"start of the branch"
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% (rev_id, len(rev.parent_ids)))
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for parent_id in rev.parent_ids:
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if parent_id == last_rev_id:
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break
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else:
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missing_inventory_sha_cnt += 1
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mutter("no inventory_sha1 on revision {%s}" % rev_id)
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inv = branch.get_inventory(rev.inventory_id)
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seen_ids = {}
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seen_names = {}
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## p('revision %d/%d file ids' % (revno, revcount))
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for file_id in inv:
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if file_id in seen_ids:
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raise BzrCheckError('duplicated file_id {%s} '
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'in inventory for revision {%s}'
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% (file_id, rev_id))
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seen_ids[file_id] = True
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i = 0
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for file_id in inv:
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i += 1
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if i & 31 == 0:
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progress.tick()
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ie = inv[file_id]
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if ie.parent_id != None:
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if ie.parent_id not in seen_ids:
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raise BzrCheckError('missing parent {%s} in inventory for revision {%s}'
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% (ie.parent_id, rev_id))
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if ie.kind == 'file':
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if ie.text_id in checked_texts:
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fp = checked_texts[ie.text_id]
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else:
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if not ie.text_id in branch.text_store:
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raise BzrCheckError('text {%s} not in text_store' % ie.text_id)
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tf = branch.text_store[ie.text_id]
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fp = fingerprint_file(tf)
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checked_texts[ie.text_id] = fp
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if ie.text_size != fp['size']:
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raise BzrCheckError('text {%s} wrong size' % ie.text_id)
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if ie.text_sha1 != fp['sha1']:
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raise BzrCheckError('text {%s} wrong sha1' % ie.text_id)
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elif ie.kind == 'directory':
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if ie.text_sha1 != None or ie.text_size != None or ie.text_id != None:
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raise BzrCheckError('directory {%s} has text in revision {%s}'
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% (file_id, rev_id))
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progress.tick()
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for path, ie in inv.iter_entries():
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if path in seen_names:
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raise BzrCheckError('duplicated path %s '
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'in inventory for revision {%s}'
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% (path, rev_id))
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raise BzrCheckError("previous revision {%s} not listed among "
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"parents of {%s}"
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% (last_rev_id, rev_id))
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elif last_rev_id:
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raise BzrCheckError("revision {%s} has no parents listed "
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"but preceded by {%s}"
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% (rev_id, last_rev_id))
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if rev.inventory_sha1:
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inv_sha1 = branch.get_inventory_sha1(rev_id)
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if inv_sha1 != rev.inventory_sha1:
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raise BzrCheckError('Inventory sha1 hash doesn\'t match'
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' value in revision {%s}' % rev_id)
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else:
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missing_inventory_sha_cnt += 1
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mutter("no inventory_sha1 on revision {%s}" % rev_id)
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self._check_revision_tree(rev_id)
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self.checked_rev_cnt += 1
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def _check_revision_tree(self, rev_id):
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tree = self.branch.revision_tree(rev_id)
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inv = tree.inventory
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seen_ids = {}
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for file_id in inv:
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if file_id in seen_ids:
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raise BzrCheckError('duplicated file_id {%s} '
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'in inventory for revision {%s}'
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% (file_id, rev_id))
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seen_ids[file_id] = True
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for file_id in inv:
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ie = inv[file_id]
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ie.check(self, rev_id, inv, tree)
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seen_names = {}
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for path, ie in inv.iter_entries():
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if path in seen_names:
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raise BzrCheckError('duplicated path %s '
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'in inventory for revision {%s}'
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% (path, rev_id))
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seen_names[path] = True
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last_rev_id = rev_id
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finally:
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branch.unlock()
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progress.clear()
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note('checked %d revisions, %d file texts' % (revcount, len(checked_texts)))
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if missing_inventory_sha_cnt:
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note('%d revisions are missing inventory_sha1' % missing_inventory_sha_cnt)
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if missing_revision_sha_cnt:
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note('%d parent links are missing revision_sha1' % missing_revision_sha_cnt)
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if missing_revision_cnt:
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note('%d revisions are mentioned but not present' % missing_revision_cnt)
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if missing_revision_cnt:
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print '%d revisions are mentioned but not present' % missing_revision_cnt
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# stub this out for now because the main bzr branch has references
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# to revisions that aren't present in the store -- mbp 20050804
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# if (missing_inventory_sha_cnt
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# or missing_revision_sha_cnt):
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# print ' (use "bzr upgrade" to fix them)'
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if mismatch_inv_id:
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warning('%d revisions have mismatched inventory ids:' % len(mismatch_inv_id))
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for rev_id in mismatch_inv_id:
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warning(' %s', rev_id)
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def check(branch):
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"""Run consistency checks on a branch."""
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Check(branch)
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