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# Copyright (C) 2005 Aaron Bentley
# <aaron.bentley@utoronto.ca>
#
# 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
import bzrlib
import bzrlib.errors
import os
import os.path
import sys
import tempfile
import shutil
import errno
from subprocess import Popen, PIPE
import codecs
def temp_branch():
dirname = tempfile.mkdtemp("temp-branch")
return bzrlib.branch.Branch.initialize(dirname)
def rm_branch(br):
shutil.rmtree(br.base)
def is_clean(cur_branch):
"""
Return true if no files are modifed or unknown
>>> import bzrlib.add
>>> br = temp_branch()
>>> is_clean(br)
(True, [])
>>> fooname = os.path.join(br.base, "foo")
>>> file(fooname, "wb").write("bar")
>>> is_clean(br)
(True, [u'foo'])
>>> br.working_tree().add(["foo"])
>>> is_clean(br)
(False, [])
>>> br.working_tree().commit("added file")
>>> is_clean(br)
(True, [])
>>> rm_branch(br)
"""
from bzrlib.diff import compare_trees
old_tree = cur_branch.basis_tree()
new_tree = cur_branch.working_tree()
non_source = []
for path, file_class, kind, file_id, entry in new_tree.list_files():
if file_class in ('?', 'I'):
non_source.append(path)
delta = compare_trees(old_tree, new_tree, want_unchanged=False)
return not delta.has_changed(), non_source
def set_pull_data(br, location, rev_id):
pull_file = file (br.control_files.controlfilename("x-pull-data"), "wb")
pull_file.write("%s\n%s\n" % (location, rev_id))
def get_pull_data(br):
"""
>>> br = temp_branch()
>>> get_pull_data(br)
(None, None)
>>> set_pull_data(br, 'http://somewhere', '888-777')
>>> get_pull_data(br)
('http://somewhere', '888-777')
>>> rm_branch(br)
"""
filename = br.control_files.controlfilename("x-pull-data")
if not os.path.exists(filename):
return (None, None)
pull_file = file (filename, "rb")
location, rev_id = [f.rstrip('\n') for f in pull_file]
return location, rev_id
def set_push_data(br, location):
push_file = file (br.control_files.controlfilename("x-push-data"), "wb")
push_file.write("%s\n" % location)
def get_push_data(br):
"""
>>> br = temp_branch()
>>> get_push_data(br) is None
True
>>> set_push_data(br, 'http://somewhere')
>>> get_push_data(br)
'http://somewhere'
>>> rm_branch(br)
"""
filename = br.control_files.controlfilename("x-push-data")
if not os.path.exists(filename):
return None
push_file = file (filename, "rb")
(location,) = [f.rstrip('\n') for f in push_file]
return location
"""
>>> shell_escape('hello')
'\h\e\l\l\o'
"""
def shell_escape(arg):
return "".join(['\\'+c for c in arg])
def safe_system(args):
"""
>>> real_system = os.system
>>> os.system = sys.stdout.write
>>> safe_system(['a', 'b', 'cd'])
\\a \\b \\c\\d
>>> os.system = real_system
"""
arg_str = " ".join([shell_escape(a) for a in args])
return os.system(arg_str)
class RsyncUnknownStatus(Exception):
def __init__(self, status):
Exception.__init__(self, "Unknown status: %d" % status)
class NoRsync(Exception):
def __init__(self, rsync_name):
Exception.__init__(self, "%s not found." % rsync_name)
def rsync(source, target, ssh=False, excludes=(), silent=False,
rsync_name="rsync"):
"""
>>> rsync("a", "b", silent=True)
Traceback (most recent call last):
RsyncNoFile: No such file a
>>> rsync("a", "b", excludes=("*.py",), silent=True)
Traceback (most recent call last):
RsyncNoFile: No such file a
>>> rsync("a", "b", excludes=("*.py",), silent=True, rsync_name="rsyncc")
Traceback (most recent call last):
NoRsync: rsyncc not found.
"""
cmd = [rsync_name, "-av", "--delete"]
if ssh:
cmd.extend(('-e', 'ssh'))
if len(excludes) > 0:
cmd.extend(('--exclude-from', '-'))
cmd.extend((source, target))
if silent:
stderr = PIPE
stdout = PIPE
else:
stderr = None
stdout = None
try:
proc = Popen(cmd, stdin=PIPE, stderr=stderr, stdout=stdout)
except OSError, e:
if e.errno == errno.ENOENT:
raise NoRsync(rsync_name)
proc.stdin.write('\n'.join(excludes)+'\n')
proc.stdin.close()
if silent:
proc.stderr.read()
proc.stderr.close()
proc.stdout.read()
proc.stdout.close()
proc.wait()
if proc.returncode == 12:
raise RsyncStreamIO()
elif proc.returncode == 23:
raise RsyncNoFile(source)
elif proc.returncode != 0:
raise RsyncUnknownStatus(proc.returncode)
return cmd
def rsync_ls(source, ssh=False, silent=True):
cmd = ["rsync"]
if ssh:
cmd.extend(('-e', 'ssh'))
cmd.append(source)
if silent:
stderr = PIPE
else:
stderr = None
proc = Popen(cmd, stderr=stderr, stdout=PIPE)
result = proc.stdout.read()
proc.stdout.close()
if silent:
proc.stderr.read()
proc.stderr.close()
proc.wait()
if proc.returncode == 12:
raise RsyncStreamIO()
elif proc.returncode == 23:
raise RsyncNoFile(source)
elif proc.returncode != 0:
raise RsyncUnknownStatus(proc.returncode)
return [l.split(' ')[-1].rstrip('\n') for l in result.splitlines(True)]
exclusions = ('.bzr/x-push-data', '.bzr/parent', '.bzr/x-pull-data',
'.bzr/x-pull', '.bzr/pull', '.bzr/stat-cache',
'.bzr/x-rsync-data')
def read_revision_history(fname):
return [l.rstrip('\r\n') for l in
codecs.open(fname, 'rb', 'utf-8').readlines()]
class RsyncNoFile(Exception):
def __init__(self, path):
Exception.__init__(self, "No such file %s" % path)
class RsyncStreamIO(Exception):
def __init__(self):
Exception.__init__(self, "Error in rsync protocol data stream.")
def get_revision_history(location):
tempdir = tempfile.mkdtemp('push')
try:
history_fname = os.path.join(tempdir, 'revision-history')
cmd = rsync(location+'.bzr/revision-history', history_fname,
silent=True)
history = read_revision_history(history_fname)
finally:
shutil.rmtree(tempdir)
return history
def history_subset(location, branch):
remote_history = get_revision_history(location)
local_history = branch.revision_history()
if len(remote_history) > len(local_history):
return False
for local, remote in zip(remote_history, local_history):
if local != remote:
return False
return True
def empty_or_absent(location):
try:
files = rsync_ls(location)
return files == ['.']
except RsyncNoFile:
return True
def push(cur_branch, location=None, overwrite=False):
push_location = get_push_data(cur_branch)
if location is not None:
if not location.endswith('/'):
location += '/'
push_location = location
if push_location is None:
raise bzrlib.errors.MustUseDecorated
if push_location.find('://') != -1:
raise bzrlib.errors.MustUseDecorated
if push_location.find(':') == -1:
raise bzrlib.errors.MustUseDecorated
clean, non_source = is_clean(cur_branch)
if not clean:
print """Error: This tree has uncommitted changes or unknown (?) files.
Use "bzr status" to list them."""
sys.exit(1)
non_source.extend(exclusions)
if not overwrite:
try:
if not history_subset(push_location, cur_branch):
raise bzrlib.errors.BzrCommandError("Local branch is not a"
" newer version of remote"
" branch.")
except RsyncNoFile:
if not empty_or_absent(push_location):
raise bzrlib.errors.BzrCommandError("Remote location is not a"
" bzr branch (or empty"
" directory)")
except RsyncStreamIO:
raise bzrlib.errors.BzrCommandError("Rsync could not use the"
" specified location. Please ensure that"
' "%s" is of the form "machine:/path".' % push_location)
print "Pushing to %s" % push_location
rsync(cur_branch.base+'/', push_location, ssh=True, excludes=non_source)
set_push_data(cur_branch, push_location)
def run_tests():
import doctest
result = doctest.testmod()
if result[1] > 0:
if result[0] == 0:
print "All tests passed"
else:
print "No tests to run"
if __name__ == "__main__":
run_tests()
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