# Copyright (C) 2008, 2009, 2010 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA """UI helper for the push command.""" from bzrlib import ( builtins, branch, bzrdir, errors, revision as _mod_revision, transport, ) from bzrlib.trace import ( note, warning, ) class PushResult(object): """Result of a push operation. :ivar branch_push_result: Result of a push between branches :ivar target_branch: The target branch :ivar stacked_on: URL of the branch on which the result is stacked :ivar workingtree_updated: Whether or not the target workingtree was updated. """ def __init__(self): self.branch_push_result = None self.stacked_on = None self.workingtree_updated = None self.target_branch = None def report(self, to_file): """Write a human-readable description of the result.""" if self.branch_push_result is None: if self.stacked_on is not None: note('Created new stacked branch referring to %s.' % self.stacked_on) else: note('Created new branch.') else: self.branch_push_result.report(to_file) def _show_push_branch(br_from, revision_id, location, to_file, verbose=False, overwrite=False, remember=False, stacked_on=None, create_prefix=False, use_existing_dir=False): """Push a branch to a location. :param br_from: the source branch :param revision_id: the revision-id to push up to :param location: the url of the destination :param to_file: the output stream :param verbose: if True, display more output than normal :param overwrite: if False, a current branch at the destination may not have diverged from the source, otherwise the push fails :param remember: if True, store the location as the push location for the source branch :param stacked_on: the url of the branch, if any, to stack on; if set, only the revisions not in that branch are pushed :param create_prefix: if True, create the necessary parent directories at the destination if they don't already exist :param use_existing_dir: if True, proceed even if the destination directory exists without a current .bzr directory in it """ to_transport = transport.get_transport(location) try: dir_to = bzrdir.BzrDir.open_from_transport(to_transport) except errors.NotBranchError: # Didn't find anything dir_to = None if dir_to is None: try: br_to = br_from.create_clone_on_transport(to_transport, revision_id=revision_id, stacked_on=stacked_on, create_prefix=create_prefix, use_existing_dir=use_existing_dir) except errors.FileExists, err: if err.path.endswith('/.bzr'): raise errors.BzrCommandError( "Target directory %s already contains a .bzr directory, " "but it is not valid." % (location,)) if not use_existing_dir: raise errors.BzrCommandError("Target directory %s" " already exists, but does not have a .bzr" " directory. Supply --use-existing-dir to push" " there anyway." % location) # This shouldn't occur, but if it does the FileExists error will be # more informative than an UnboundLocalError for br_to. raise except errors.NoSuchFile: if not create_prefix: raise errors.BzrCommandError("Parent directory of %s" " does not exist." "\nYou may supply --create-prefix to create all" " leading parent directories." % location) # This shouldn't occur (because create_prefix is true, so # create_clone_on_transport should be catching NoSuchFile and # creating the missing directories) but if it does the original # NoSuchFile error will be more informative than an # UnboundLocalError for br_to. raise except errors.TooManyRedirections: raise errors.BzrCommandError("Too many redirections trying " "to make %s." % location) push_result = PushResult() # TODO: Some more useful message about what was copied try: push_result.stacked_on = br_to.get_stacked_on_url() except (errors.UnstackableBranchFormat, errors.UnstackableRepositoryFormat, errors.NotStacked): push_result.stacked_on = None push_result.target_branch = br_to push_result.old_revid = _mod_revision.NULL_REVISION push_result.old_revno = 0 if br_from.get_push_location() is None or remember: br_from.set_push_location(br_to.base) else: if stacked_on is not None: warning("Ignoring request for a stacked branch as repository " "already exists at the destination location.") try: push_result = dir_to.push_branch(br_from, revision_id, overwrite, remember, create_prefix) except errors.DivergedBranches: raise errors.BzrCommandError('These branches have diverged.' ' See "bzr help diverged-branches"' ' for more information.') except errors.NoRoundtrippingSupport, e: raise errors.BzrCommandError("It is not possible to losslessly " "push to %s. You may want to use dpush instead." % e.target_branch.mapping.vcs.abbreviation) except errors.NoRepositoryPresent: # we have a bzrdir but no branch or repository # XXX: Figure out what to do other than complain. raise errors.BzrCommandError("At %s you have a valid .bzr" " control directory, but not a branch or repository. This" " is an unsupported configuration. Please move the target" " directory out of the way and try again." % location) if push_result.workingtree_updated == False: warning("This transport does not update the working " "tree of: %s. See 'bzr help working-trees' for " "more information." % push_result.target_branch.base) push_result.report(to_file) if verbose: br_to = push_result.target_branch br_to.lock_read() try: from bzrlib.log import show_branch_change show_branch_change(br_to, to_file, push_result.old_revno, push_result.old_revid) finally: br_to.unlock()