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# Copyright (C) 2005 Canonical Ltd
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# Copyright (C) 2005, 2006 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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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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## XXX: Can we do any better about making interrupted commits change
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## XXX: If we merged two versions of a file then we still need to
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## create a new version representing that merge, even if it didn't
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## change from the parent.
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## TODO: Read back the just-generated changeset, and make sure it
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## applies and recreates the right state.
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# XXX: Can we do any better about making interrupted commits change
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# nothing? Perhaps the best approach is to integrate commit of
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# AtomicFiles with releasing the lock on the Branch.
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# TODO: Separate 'prepare' phase where we find a list of potentially
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# committed files. We then can then pause the commit to prompt for a
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# commit message, knowing the summary will be the same as what's
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# actually used for the commit. (But perhaps simpler to simply get
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# the tree status, then use that for a selective commit?)
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# The newly committed revision is going to have a shape corresponding
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# to that of the working inventory. Files that are not in the
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# working tree and that were in the predecessor are reported as
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# removed --- this can include files that were either removed from the
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# inventory or deleted in the working tree. If they were only
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# deleted from disk, they are removed from the working inventory.
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# We then consider the remaining entries, which will be in the new
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# version. Directory entries are simply copied across. File entries
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# must be checked to see if a new version of the file should be
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# recorded. For each parent revision inventory, we check to see what
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# version of the file was present. If the file was present in at
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# least one tree, and if it was the same version in all the trees,
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# then we can just refer to that version. Otherwise, a new version
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# representing the merger of the file versions must be added.
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# TODO: Update hashcache before and after - or does the WorkingTree
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# TODO: Rather than mashing together the ancestry and storing it back,
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# perhaps the weave should have single method which does it all in one
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# go, avoiding a lot of redundant work.
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# TODO: Perhaps give a warning if one of the revisions marked as
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# merged is already in the ancestry, and then don't record it as a
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# TODO: If the file is newly merged but unchanged from the version it
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# merges from, then it should still be reported as newly added
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# relative to the basis revision.
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# TODO: Do checks that the tree can be committed *before* running the
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# editor; this should include checks for a pointless commit and for
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# unknown or missing files.
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# TODO: If commit fails, leave the message in a file somewhere.
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from binascii import hexlify
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from cStringIO import StringIO
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from bzrlib.osutils import (local_time_offset, username,
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rand_bytes, compact_date, user_email,
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from bzrlib.atomicfile import AtomicFile
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from bzrlib.osutils import (local_time_offset,
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rand_bytes, compact_date,
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kind_marker, is_inside_any, quotefn,
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sha_string, sha_file, isdir, isfile)
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from bzrlib.branch import gen_file_id
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from bzrlib.errors import BzrError, PointlessCommit
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from bzrlib.revision import Revision, RevisionReference
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from bzrlib.trace import mutter, note
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sha_file, isdir, isfile,
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import bzrlib.errors as errors
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from bzrlib.errors import (BzrError, PointlessCommit,
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from bzrlib.revision import Revision
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from bzrlib.testament import Testament
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from bzrlib.trace import mutter, note, warning
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from bzrlib.xml5 import serializer_v5
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from bzrlib.inventory import Inventory
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from bzrlib.delta import compare_trees
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from bzrlib.weave import Weave
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from bzrlib.weavefile import read_weave, write_weave_v5
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from bzrlib.atomicfile import AtomicFile
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from bzrlib.inventory import Inventory, ROOT_ID, InventoryEntry
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from bzrlib.symbol_versioning import *
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from bzrlib.workingtree import WorkingTree
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@deprecated_function(zero_seven)
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def commit(*args, **kwargs):
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"""Commit a new revision to a branch.
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working inventory.
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def __init__(self,
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if reporter is not None:
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self.reporter = reporter
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self.reporter = NullCommitReporter()
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if config is not None:
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branch=DEPRECATED_PARAMETER, message=None,
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specific_files=None,
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allow_pointless=True):
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allow_pointless=True,
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"""Commit working copy as a new revision.
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The basic approach is to add all the file texts into the
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store, then the inventory, then make a new revision pointing
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to that inventory and store that.
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This is not quite safe if the working copy changes during the
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commit; for the moment that is simply not allowed. A better
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approach is to make a temporary copy of the files before
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computing their hashes, and then add those hashes in turn to
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the inventory. This should mean at least that there are no
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broken hash pointers. There is no way we can get a snapshot
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of the whole directory at an instant. This would also have to
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be robust against files disappearing, moving, etc. So the
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whole thing is a bit hard.
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This raises PointlessCommit if there are no changes, no new merges,
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and allow_pointless is false.
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branch -- the deprecated branch to commit to. New callers should pass in
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message -- the commit message, a mandatory parameter
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timestamp -- if not None, seconds-since-epoch for a
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postdated/predated commit.
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If true, commit only those files.
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specific_files -- If true, commit only those files.
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If set, use this as the new revision id.
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rev_id -- If set, use this as the new revision id.
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Useful for test or import commands that need to tightly
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control what revisions are assigned. If you duplicate
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a revision id that exists elsewhere it is your own fault.
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If null (default), a time/random revision id is generated.
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allow_pointless -- If true (default), commit even if nothing
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has changed and no merges are recorded.
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strict -- If true, don't allow a commit if the working tree
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contains unknown files.
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revprops -- Properties for new revision
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:param local: Perform a local only commit.
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self.branch.lock_write()
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mutter('preparing to commit')
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if deprecated_passed(branch):
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warn("Commit.commit (branch, ...): The branch parameter is "
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"deprecated as of bzr 0.8. Please use working_tree= instead.",
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DeprecationWarning, stacklevel=2)
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self.work_tree = self.branch.bzrdir.open_workingtree()
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elif working_tree is None:
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raise BzrError("One of branch and working_tree must be passed into commit().")
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self.work_tree = working_tree
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self.branch = self.work_tree.branch
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raise BzrError("The message keyword parameter is required for commit().")
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self.weave_store = self.branch.repository.weave_store
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self.bound_branch = None
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self.master_branch = None
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self.master_locked = False
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self.rev_id = rev_id
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self.specific_files = specific_files
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self.allow_pointless = allow_pointless
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if timestamp is None:
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self.timestamp = time.time()
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self.timestamp = long(timestamp)
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if committer is None:
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self.committer = username(self.branch)
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assert isinstance(committer, basestring), type(committer)
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self.committer = committer
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self.timezone = local_time_offset()
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self.timezone = int(timezone)
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assert isinstance(message, basestring), type(message)
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self.message = message
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if revprops is not None:
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self.revprops.update(revprops)
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if reporter is None and self.reporter is None:
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self.reporter = NullCommitReporter()
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elif reporter is not None:
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self.reporter = reporter
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self.work_tree.lock_write()
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self.pb = bzrlib.ui.ui_factory.nested_progress_bar()
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# First walk over the working inventory; and both update that
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# and also build a new revision inventory. The revision
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# inventory needs to hold the text-id, sha1 and size of the
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# actual file versions committed in the revision. (These are
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# not present in the working inventory.) We also need to
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# detect missing/deleted files, and remove them from the
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self.work_tree = self.branch.working_tree()
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# Cannot commit with conflicts present.
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if len(self.work_tree.conflicts())>0:
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raise ConflictsInTree
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# setup the bound branch variables as needed.
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self._check_bound_branch()
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# check for out of date working trees
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# if we are bound, then self.branch is the master branch and this
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# test is thus all we need.
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if self.work_tree.last_revision() != self.master_branch.last_revision():
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raise errors.OutOfDateTree(self.work_tree)
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# raise an exception as soon as we find a single unknown.
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for unknown in self.work_tree.unknowns():
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raise StrictCommitFailed()
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if timestamp is None:
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self.timestamp = time.time()
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self.timestamp = long(timestamp)
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if self.config is None:
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self.config = bzrlib.config.BranchConfig(self.branch)
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self.rev_id = _gen_revision_id(self.config, self.timestamp)
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if committer is None:
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self.committer = self.config.username()
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assert isinstance(committer, basestring), type(committer)
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self.committer = committer
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self.timezone = local_time_offset()
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self.timezone = int(timezone)
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if isinstance(message, str):
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message = message.decode(bzrlib.user_encoding)
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assert isinstance(message, unicode), type(message)
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self.message = message
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self._escape_commit_message()
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self.work_inv = self.work_tree.inventory
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self.basis_tree = self.branch.basis_tree()
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self.basis_tree = self.work_tree.basis_tree()
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self.basis_inv = self.basis_tree.inventory
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# one to finish, one for rev and inventory, and one for each
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# inventory entry, and the same for the new inventory.
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# note that this estimate is too long when we do a partial tree
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# commit which excludes some new files from being considered.
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# The estimate is corrected when we populate the new inv.
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self.pb_total = len(self.basis_inv) + len(self.work_inv) + 3 - 1
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self.pending_merges = self.branch.pending_merges()
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if self.pending_merges:
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raise NotImplementedError("sorry, can't commit merges to the weave format yet")
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self._gather_parents()
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if len(self.parents) > 1 and self.specific_files:
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raise NotImplementedError('selected-file commit of merges is not supported yet: files %r',
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self._check_parents_present()
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if self.rev_id is None:
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self.rev_id = _gen_revision_id(self.branch, time.time())
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# todo: update hashcache
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self.delta = compare_trees(self.basis_tree, self.work_tree,
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specific_files=self.specific_files)
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if not (self.delta.has_changed()
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or self.allow_pointless
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or self.pending_merges):
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self._remove_deleted()
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self._populate_new_inv()
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self._store_snapshot()
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self._report_deletes()
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if not (self.allow_pointless
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or len(self.parents) > 1
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or self.new_inv != self.basis_inv):
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raise PointlessCommit()
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self.new_inv = self.basis_inv.copy()
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self.delta.show(sys.stdout)
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self._remove_deleted()
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self.branch._write_inventory(self.work_inv)
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self._record_inventory()
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self._emit_progress_update()
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self.inv_sha1 = self.branch.repository.add_inventory(
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self._emit_progress_update()
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self._make_revision()
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note('committted r%d {%s}', (self.branch.revno() + 1),
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# revision data is in the local branch now.
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# upload revision data to the master.
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# this will propogate merged revisions too if needed.
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if self.bound_branch:
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self.master_branch.repository.fetch(self.branch.repository,
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revision_id=self.rev_id)
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# now the master has the revision data
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# 'commit' to the master first so a timeout here causes the local
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# branch to be out of date
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self.master_branch.append_revision(self.rev_id)
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# and now do the commit locally.
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self.branch.append_revision(self.rev_id)
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self.branch.set_pending_merges([])
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self.work_tree.set_pending_merges([])
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self.work_tree.set_last_revision(self.rev_id)
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# now the work tree is up to date with the branch
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self.reporter.completed(self.branch.revno(), self.rev_id)
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if self.config.post_commit() is not None:
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hooks = self.config.post_commit().split(' ')
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# this would be nicer with twisted.python.reflect.namedAny
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result = eval(hook + '(branch, rev_id)',
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{'branch':self.branch,
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'rev_id':self.rev_id})
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self._emit_progress_update()
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def _record_inventory(self):
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serializer_v5.write_inventory(self.new_inv, inv_tmp)
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self.inv_sha1 = sha_string(inv_tmp.getvalue())
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self.branch.inventory_store.add(inv_tmp, self.rev_id)
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def _check_bound_branch(self):
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"""Check to see if the local branch is bound.
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If it is bound, then most of the commit will actually be
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done using the remote branch as the target branch.
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Only at the end will the local branch be updated.
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if self.local and not self.branch.get_bound_location():
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raise errors.LocalRequiresBoundBranch()
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self.master_branch = self.branch.get_master_branch()
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if not self.master_branch:
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# make this branch the reference branch for out of date checks.
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self.master_branch = self.branch
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# If the master branch is bound, we must fail
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master_bound_location = self.master_branch.get_bound_location()
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if master_bound_location:
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raise errors.CommitToDoubleBoundBranch(self.branch,
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self.master_branch, master_bound_location)
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# TODO: jam 20051230 We could automatically push local
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# commits to the remote branch if they would fit.
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# But for now, just require remote to be identical
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# Make sure the local branch is identical to the master
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master_rh = self.master_branch.revision_history()
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local_rh = self.branch.revision_history()
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if local_rh != master_rh:
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raise errors.BoundBranchOutOfDate(self.branch,
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# Now things are ready to change the master branch
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self.bound_branch = self.branch
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self.master_branch.lock_write()
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self.master_locked = True
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#### # Check to see if we have any pending merges. If we do
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#### # those need to be pushed into the master branch
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#### pending_merges = self.work_tree.pending_merges()
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#### if pending_merges:
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#### for revision_id in pending_merges:
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#### self.master_branch.repository.fetch(self.bound_branch.repository,
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#### revision_id=revision_id)
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"""Cleanup any open locks, progress bars etc."""
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cleanups = [self._cleanup_bound_branch,
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self.work_tree.unlock,
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found_exception = None
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for cleanup in cleanups:
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# we want every cleanup to run no matter what.
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# so we have a catchall here, but we will raise the
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# last encountered exception up the stack: and
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# typically this will be useful enough.
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if found_exception is not None:
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# dont do a plan raise, because the last exception may have been
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# trashed, e is our sure-to-work exception even though it loses the
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# full traceback. XXX: RBC 20060421 perhaps we could check the
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# exc_info and if its the same one do a plain raise otherwise
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# 'raise e' as we do now.
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def _cleanup_bound_branch(self):
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"""Executed at the end of a try/finally to cleanup a bound branch.
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If the branch wasn't bound, this is a no-op.
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If it was, it resents self.branch to the local branch, instead
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if not self.bound_branch:
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if self.master_locked:
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self.master_branch.unlock()
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def _escape_commit_message(self):
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"""Replace xml-incompatible control characters."""
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# FIXME: RBC 20060419 this should be done by the revision
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# serialiser not by commit. Then we can also add an unescaper
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# in the deserializer and start roundtripping revision messages
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# precisely. See repository_implementations/test_repository.py
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# Python strings can include characters that can't be
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# represented in well-formed XML; escape characters that
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# aren't listed in the XML specification
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# (http://www.w3.org/TR/REC-xml/#NT-Char).
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self.message, escape_count = re.subn(
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u'[^\x09\x0A\x0D\u0020-\uD7FF\uE000-\uFFFD]+',
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lambda match: match.group(0).encode('unicode_escape'),
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self.reporter.escaped(escape_count, self.message)
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def _gather_parents(self):
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"""Record the parents of a merge for merge detection."""
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pending_merges = self.work_tree.pending_merges()
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self.parent_invs = []
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self.present_parents = []
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precursor_id = self.branch.last_revision()
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self.parents.append(precursor_id)
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self.parents += pending_merges
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for revision in self.parents:
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if self.branch.repository.has_revision(revision):
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inventory = self.branch.repository.get_inventory(revision)
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self.parent_invs.append(inventory)
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self.present_parents.append(revision)
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def _check_parents_present(self):
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for parent_id in self.parents:
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mutter('commit parent revision {%s}', parent_id)
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if not self.branch.repository.has_revision(parent_id):
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if parent_id == self.branch.last_revision():
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warning("parent is missing %r", parent_id)
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raise HistoryMissing(self.branch, 'revision', parent_id)
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mutter("commit will ghost revision %r", parent_id)
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def _make_revision(self):
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"""Record a new revision object for this commit."""
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self.rev = Revision(timestamp=self.timestamp,
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timezone=self.timezone,
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committer=self.committer,
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message=self.message,
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inventory_sha1=self.inv_sha1,
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revision_id=self.rev_id)
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self.rev.parents = []
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precursor_id = self.branch.last_patch()
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self.rev.parents.append(RevisionReference(precursor_id))
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for merge_rev in self.pending_merges:
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rev.parents.append(RevisionReference(merge_rev))
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rev_tmp = tempfile.TemporaryFile()
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serializer_v5.write_revision(self.rev, rev_tmp)
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self.branch.revision_store.add(rev_tmp, self.rev_id)
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mutter('new revision_id is {%s}', self.rev_id)
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rev = Revision(timestamp=self.timestamp,
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timezone=self.timezone,
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committer=self.committer,
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message=self.message,
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inventory_sha1=self.inv_sha1,
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revision_id=self.rev_id,
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properties=self.revprops)
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rev.parent_ids = self.parents
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self.branch.repository.add_revision(self.rev_id, rev, self.new_inv, self.config)
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def _remove_deleted(self):
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"""Remove deleted files from the working and stored inventories."""
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for path, id, kind in self.delta.removed:
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if self.work_inv.has_id(id):
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del self.work_inv[id]
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if self.new_inv.has_id(id):
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def _store_files(self):
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"""Store new texts of modified/added files."""
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# We must make sure that directories are added before anything
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# inside them is added. the files within the delta report are
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# sorted by path so we know the directory will come before its
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for path, file_id, kind in self.delta.added:
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ie = self.work_inv[file_id].copy()
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self._store_file_text(file_id)
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for path, file_id, kind in self.delta.modified:
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self._store_file_text(file_id)
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for old_path, new_path, file_id, kind, text_modified in self.delta.renamed:
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if not text_modified:
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self._store_file_text(file_id)
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def _store_file_text(self, file_id):
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"""Store updated text for one modified or added file."""
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note('store new text for {%s} in revision {%s}',
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file_id, self.rev_id)
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new_lines = self.work_tree.get_file(file_id).readlines()
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if file_id in self.new_inv: # was in basis inventory
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ie = self.new_inv[file_id]
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assert ie.file_id == file_id
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assert file_id in self.basis_inv
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assert self.basis_inv[file_id].kind == 'file'
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old_version = self.basis_inv[file_id].text_version
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file_parents = [old_version]
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else: # new in this revision
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ie = self.work_inv[file_id].copy()
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assert file_id not in self.basis_inv
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assert ie.kind == 'file'
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self._add_text_to_weave(file_id, new_lines, file_parents)
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# make a new inventory entry for this file, using whatever
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# it had in the working copy, plus details on the new text
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ie.text_sha1 = _sha_strings(new_lines)
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ie.text_size = sum(map(len, new_lines))
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ie.text_version = self.rev_id
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ie.entry_version = self.rev_id
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def _add_text_to_weave(self, file_id, new_lines, parents):
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weave_fn = self.branch.controlfilename(['weaves', file_id+'.weave'])
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if os.path.exists(weave_fn):
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w = read_weave(file(weave_fn, 'rb'))
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"""Remove deleted files from the working inventories.
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This is done prior to taking the working inventory as the
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basis for the new committed inventory.
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This returns true if any files
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*that existed in the basis inventory* were deleted.
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Files that were added and deleted
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in the working copy don't matter.
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specific = self.specific_files
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for path, ie in self.work_inv.iter_entries():
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if specific and not is_inside_any(specific, path):
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if not self.work_tree.has_filename(path):
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self.reporter.missing(path)
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deleted_ids.append((path, ie.file_id))
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deleted_ids.sort(reverse=True)
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for path, file_id in deleted_ids:
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del self.work_inv[file_id]
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self.work_tree._write_inventory(self.work_inv)
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def _store_snapshot(self):
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"""Pass over inventory and record a snapshot.
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Entries get a new revision when they are modified in
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any way, which includes a merge with a new set of
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parents that have the same entry.
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# XXX: Need to think more here about when the user has
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# made a specific decision on a particular value -- c.f.
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# iter_entries does not visit the ROOT_ID node so we need to call
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# self._emit_progress_update once by hand.
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self._emit_progress_update()
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for path, ie in self.new_inv.iter_entries():
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self._emit_progress_update()
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previous_entries = ie.find_previous_heads(
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self.branch.repository.get_transaction())
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if ie.revision is None:
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# we are creating a new revision for ie in the history store
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ie.snapshot(self.rev_id, path, previous_entries,
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self.work_tree, self.weave_store,
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self.branch.repository.get_transaction())
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# describe the nature of the change that has occured relative to
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# the basis inventory.
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if (self.basis_inv.has_id(ie.file_id)):
571
basis_ie = self.basis_inv[ie.file_id]
574
change = ie.describe_change(basis_ie, ie)
575
if change in (InventoryEntry.RENAMED,
576
InventoryEntry.MODIFIED_AND_RENAMED):
577
old_path = self.basis_inv.id2path(ie.file_id)
578
self.reporter.renamed(change, old_path, path)
580
self.reporter.snapshot_change(change, path)
582
def _populate_new_inv(self):
583
"""Build revision inventory.
585
This creates a new empty inventory. Depending on
586
which files are selected for commit, and what is present in the
587
current tree, the new inventory is populated. inventory entries
588
which are candidates for modification have their revision set to
589
None; inventory entries that are carried over untouched have their
590
revision set to their prior value.
592
mutter("Selecting files for commit with filter %s", self.specific_files)
593
self.new_inv = Inventory(revision_id=self.rev_id)
594
# iter_entries does not visit the ROOT_ID node so we need to call
595
# self._emit_progress_update once by hand.
596
self._emit_progress_update()
597
for path, new_ie in self.work_inv.iter_entries():
598
self._emit_progress_update()
599
file_id = new_ie.file_id
600
mutter('check %s {%s}', path, new_ie.file_id)
601
if self.specific_files:
602
if not is_inside_any(self.specific_files, path):
603
mutter('%s not selected for commit', path)
604
self._carry_entry(file_id)
607
# this is selected, ensure its parents are too.
608
parent_id = new_ie.parent_id
609
while parent_id != ROOT_ID:
610
if not self.new_inv.has_id(parent_id):
611
ie = self._select_entry(self.work_inv[parent_id])
612
mutter('%s selected for commit because of %s',
613
self.new_inv.id2path(parent_id), path)
615
ie = self.new_inv[parent_id]
616
if ie.revision is not None:
618
mutter('%s selected for commit because of %s',
619
self.new_inv.id2path(parent_id), path)
620
parent_id = ie.parent_id
621
mutter('%s selected for commit', path)
622
self._select_entry(new_ie)
624
def _emit_progress_update(self):
625
"""Emit an update to the progress bar."""
626
self.pb.update("Committing", self.pb_count, self.pb_total)
629
def _select_entry(self, new_ie):
630
"""Make new_ie be considered for committing."""
636
def _carry_entry(self, file_id):
637
"""Carry the file unchanged from the basis revision."""
638
if self.basis_inv.has_id(file_id):
639
self.new_inv.add(self.basis_inv[file_id].copy())
324
# XXX: Should set the appropriate parents by looking for this file_id
325
# in all revision parents
326
parent_idxs = map(w.lookup, parents)
327
w.add(self.rev_id, parent_idxs, new_lines)
328
af = AtomicFile(weave_fn)
330
write_weave_v5(w, af)
336
def _gen_revision_id(branch, when):
641
# this entry is new and not being committed
644
def _report_deletes(self):
645
for path, ie in self.basis_inv.iter_entries():
646
if ie.file_id not in self.new_inv:
647
self.reporter.deleted(path)
649
def _gen_revision_id(config, when):
337
650
"""Return new revision-id."""
338
s = '%s-%s-' % (user_email(branch), compact_date(when))
651
s = '%s-%s-' % (config.user_email(), compact_date(when))
339
652
s += hexlify(rand_bytes(8))
343
def _sha_strings(strings):
344
"""Return the sha-1 of concatenation of strings"""
346
map(s.update, strings)
added
removed
bzrlib/commit.py
