/usr/lib/python2.7/dist-packages/bzrlib/plugins/bzrtools/fetch_ghosts.py is in bzrtools 2.6.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 | # Copyright (C) 2005 by Aaron Bentley
# 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
from bzrlib.branch import Branch
from bzrlib.trace import note
from bzrlib.errors import NoSuchRevision, BzrCommandError
class GhostFetcher(object):
@classmethod
def from_cmdline(klass, other):
this_branch = Branch.open_containing('.')[0]
if other is None:
other = this_branch.get_parent()
if other is None:
raise BzrCommandError('No branch specified and no location'
' saved.')
else:
note("Using saved location %s.", other)
other_branch = Branch.open_containing(other)[0]
return klass(this_branch, other_branch)
def __init__(self, this_branch, other_branch):
self.this_branch = this_branch
self.other_branch = other_branch
def run(self):
lock_other = self.this_branch.base != self.other_branch.base
self.this_branch.lock_write()
try:
if lock_other:
self.other_branch.lock_read()
try:
return self._run_locked()
finally:
if lock_other:
self.other_branch.unlock()
finally:
self.this_branch.unlock()
def iter_ghosts(self):
"""Find all ancestors that aren't stored in this branch."""
seen = set()
lines = [self.this_branch.last_revision()]
if lines[0] is None:
return
while len(lines) > 0:
new_lines = []
for line in lines:
if line in seen:
continue
seen.add(line)
try:
revision = self.this_branch.repository.get_revision(line)
new_lines.extend(revision.parent_ids)
except NoSuchRevision:
yield line
lines = new_lines
def _run_locked(self):
installed = []
failed = []
if self.this_branch.last_revision() is None:
print "No revisions in branch."
return
# Because iter_ghosts tests for existence after our last fetch
# is complete, it won't falsely report an ancestor as a ghost.
# Yay iterators!
ghosts = self.iter_ghosts()
for revision in ghosts:
try:
self.this_branch.fetch(self.other_branch, revision)
installed.append(revision)
except NoSuchRevision:
failed.append(revision)
return installed, failed
def fetch_ghosts(branch, do_reconcile):
"""Install ghosts from copies in another branch."""
installed, failed = GhostFetcher.from_cmdline(branch).run()
if len(installed) > 0:
print "Installed:"
for rev in installed:
print rev
if len(failed) > 0:
print "Still missing:"
for rev in failed:
print rev
if do_reconcile and len(installed) > 0:
from bzrlib.builtins import cmd_reconcile
cmd_reconcile().run(".")
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