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
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
|
# 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'])
>>> bzrlib.add.smart_add_branch(br, [br.base])
1
>>> is_clean(br)
(False, [])
>>> br.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)
if len(delta.added) > 0 or len(delta.removed) > 0 or \
len(delta.modified) > 0:
return False, non_source
return True, non_source
def set_pull_data(br, location, rev_id):
pull_file = file (br.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.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.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.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:
print "No push location saved. Please specify one on the command line."
sys.exit(1)
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()
|