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# Copyright (C) 2006 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
"""\
This is an attempt to take the internal delta object, and represent
it as a single-file text-only changeset.
This should have commands for both generating a changeset,
and for applying a changeset.
"""
import sys
from bzrlib.lazy_import import lazy_import
lazy_import(globals(), """
from bzrlib import (
branch,
errors,
revision as _mod_revision,
urlutils,
transport,
)
""")
from bzrlib.commands import Command
from bzrlib.option import Option
from bzrlib.trace import note
class cmd_bundle_revisions(Command):
"""Generate a revision bundle.
This bundle contains all of the meta-information of a
diff, rather than just containing the patch information.
You can apply it to another tree using 'bzr merge'.
bzr bundle-revisions
- Generate a bundle relative to a remembered location
bzr bundle-revisions BASE
- Bundle to apply the current tree into BASE
bzr bundle-revisions --revision A
- Bundle to apply revision A to remembered location
bzr bundle-revisions --revision A..B
- Bundle to transform A into B
"""
takes_options = ['revision', 'remember',
Option("output", help="write bundle to specified file",
type=unicode)]
takes_args = ['base?']
aliases = ['bundle']
encoding_type = 'exact'
def run(self, base=None, revision=None, output=None, remember=False):
from bzrlib import user_encoding
from bzrlib.bundle.serializer import write_bundle
target_branch = branch.Branch.open_containing(u'.')[0]
target_branch.lock_write()
locked = [target_branch]
try:
if base is None:
base_specified = False
else:
base_specified = True
if revision is None:
target_revision = target_branch.last_revision()
elif len(revision) < 3:
target_revision = revision[-1].in_history(target_branch).rev_id
if len(revision) == 2:
if base_specified:
raise errors.BzrCommandError(
'Cannot specify base as well as two revision'
' arguments.')
revspec = revision[0].in_history(target_branch)
base_revision = revspec.rev_id
else:
raise errors.BzrCommandError('--revision takes 1 or 2 '
'parameters')
if revision is None or len(revision) < 2:
submit_branch = target_branch.get_submit_branch()
if base is None:
base = submit_branch
if base is None:
base = target_branch.get_parent()
if base is None:
raise errors.BzrCommandError("No base branch known or"
" specified.")
elif not base_specified:
# FIXME:
# note() doesn't pay attention to terminal_encoding() so
# we must format with 'ascii' to be safe
note('Using saved location: %s',
urlutils.unescape_for_display(base, 'ascii'))
base_branch = branch.Branch.open(base)
base_branch.lock_read()
locked.append(base_branch)
if submit_branch is None or remember:
if base_specified:
target_branch.set_submit_branch(base_branch.base)
elif remember:
raise errors.BzrCommandError(
'--remember requires a branch to be specified.')
target_branch.repository.fetch(base_branch.repository,
base_branch.last_revision())
graph = target_branch.repository.get_graph()
base_revision = graph.find_unique_lca(
_mod_revision.ensure_null(base_branch.last_revision()),
_mod_revision.ensure_null(target_revision))
if output is not None:
fileobj = file(output, 'wb')
else:
fileobj = sys.stdout
write_bundle(target_branch.repository, target_revision,
base_revision, fileobj)
finally:
for item in reversed(locked):
item.unlock()
class cmd_bundle_info(Command):
"""Output interesting stats about a bundle"""
hidden = True
takes_args = ['location']
takes_options = [Option('verbose', help="output decoded contents",
short_name='v')]
encoding_type = 'exact'
def run(self, location, verbose=False):
from bzrlib.bundle.serializer import read_bundle
from bzrlib import osutils
term_encoding = osutils.get_terminal_encoding()
dirname, basename = urlutils.split(location)
bundle_file = transport.get_transport(dirname).get(basename)
bundle_info = read_bundle(bundle_file)
reader_method = getattr(bundle_info, 'get_bundle_reader', None)
if reader_method is None:
raise errors.BzrCommandError('Bundle format not supported')
by_kind = {}
file_ids = set()
for bytes, parents, repo_kind, revision_id, file_id\
in reader_method().iter_records():
by_kind.setdefault(repo_kind, []).append(
(bytes, parents, repo_kind, revision_id, file_id))
if file_id is not None:
file_ids.add(file_id)
print >> self.outf, 'Records'
for kind, records in sorted(by_kind.iteritems()):
multiparent = sum(1 for b, p, k, r, f in records if len(p) > 1)
print >> self.outf, '%s: %d (%d multiparent)' % \
(kind, len(records), multiparent)
print >> self.outf, 'unique files: %d' % len(file_ids)
print >> self.outf
nicks = set()
committers = set()
for revision in bundle_info.real_revisions:
if 'branch-nick' in revision.properties:
nicks.add(revision.properties['branch-nick'])
committers.add(revision.committer)
print >> self.outf, 'Revisions'
print >> self.outf, ('nicks: %s'
% ', '.join(sorted(nicks))).encode(term_encoding, 'replace')
print >> self.outf, ('committers: \n%s' %
'\n'.join(sorted(committers)).encode(term_encoding, 'replace'))
if verbose:
print >> self.outf
bundle_file.seek(0)
line = bundle_file.readline()
line = bundle_file.readline()
content = bundle_file.read().decode('bz2')
print >> self.outf, "Decoded contents"
self.outf.write(content)
print >> self.outf
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