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
|
# Copyright (C) 2009 Jelmer Vernooij <jelmer@samba.org>
# Based on the original from bzr-svn:
# Copyright (C) 2009 Lukas Lalinsky <lalinsky@gmail.com>
# Copyright (C) 2009 Jelmer Vernooij <jelmer@samba.org>
# 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
"""Support in "bzr send" for git-am style patches."""
import time
import bzrlib
from bzrlib import (
branch as _mod_branch,
diff as _mod_diff,
merge_directive,
osutils,
revision as _mod_revision,
)
from bzrlib.plugins.git import (
version_info as bzr_git_version_info,
)
from bzrlib.plugins.git.mapping import (
object_mode,
)
from bzrlib.plugins.git.object_store import (
get_object_store,
)
from cStringIO import StringIO
from dulwich.objects import (
Blob,
)
class GitDiffTree(_mod_diff.DiffTree):
"""Provides a text representation between two trees, formatted for svn."""
def __init__(self, old_tree, new_tree, to_file, path_encoding='utf-8',
diff_text=None, extra_factories=None):
super(GitDiffTree, self).__init__(old_tree, new_tree, to_file, path_encoding,
diff_text, extra_factories)
def _write_file_mode(self, old_mode, new_mode):
if old_mode == new_mode:
return
if new_mode is not None:
if old_mode is not None:
self.to_file.write("old file mode %o\n" % old_mode)
self.to_file.write("new file mode %o\n" % new_mode)
else:
self.to_file.write("deleted file mode %o\n" % old_mode)
def _get_rev(self, contents):
if contents is None:
return "0" * 7
else:
return Blob.from_string("".join(contents)).id[:7]
def _write_contents_diff(self, old_path, old_mode, old_contents, new_path, new_mode, new_contents):
if old_path is None:
old_path = "/dev/null"
else:
old_path = "a/%s" % old_path
if new_path is None:
new_path = "/dev/null"
else:
new_path = "b/%s" % new_path
self.to_file.write("diff --git %s %s\n" % (old_path, new_path))
self._write_file_mode(old_mode, new_mode)
old_rev = self._get_rev(old_contents)
new_rev = self._get_rev(new_contents)
self.to_file.write("index %s..%s %o\n" % (old_rev, new_rev, new_mode))
_mod_diff.internal_diff(old_path, old_contents,
new_path, new_contents,
self.to_file)
def _get_file_mode(self, tree, path, kind, executable):
if path is None:
return None
return object_mode(kind, executable)
def _show_diff(self, specific_files, extra_trees):
iterator = self.new_tree.iter_changes(self.old_tree,
specific_files=specific_files,
extra_trees=extra_trees,
require_versioned=True)
has_changes = 0
def get_encoded_path(path):
if path is not None:
return path.encode(self.path_encoding, "replace")
for (file_id, paths, changed_content, versioned, parent, name, kind,
executable) in iterator:
# The root does not get diffed, and items with no known kind (that
# is, missing) in both trees are skipped as well.
if parent == (None, None) or kind == (None, None):
continue
oldpath, newpath = paths
oldpath_encoded = get_encoded_path(paths[0])
newpath_encoded = get_encoded_path(paths[1])
old_present = (kind[0] is not None and versioned[0])
if old_present is not None:
old_contents = self.old_tree.get_file(file_id).readlines()
else:
old_contents = None
new_present = (kind[1] is not None and versioned[1])
if new_present is not None:
new_contents = self.new_tree.get_file(file_id).readlines()
else:
new_contents = None
renamed = (parent[0], name[0]) != (parent[1], name[1])
old_mode = self._get_file_mode(self.old_tree, oldpath_encoded, kind[0], executable[0])
new_mode = self._get_file_mode(self.new_tree, newpath_encoded, kind[1], executable[1])
self._write_contents_diff(oldpath_encoded, old_mode, old_contents,
newpath_encoded, new_mode, new_contents)
has_changes = (changed_content or renamed)
return has_changes
class GitMergeDirective(merge_directive._BaseMergeDirective):
def to_lines(self):
return self.patch.splitlines(True)
@classmethod
def _generate_commit(cls, repository, revision_id, num, total):
s = StringIO()
store = get_object_store(repository)
commit = store[store._lookup_revision_sha1(revision_id)]
s.write("From %s %s\n" % (commit.id, time.ctime(commit.commit_time)))
s.write("From: %s\n" % commit.author)
s.write("Date: %s\n" % time.strftime("%a, %d %b %Y %H:%M:%S %Z"))
s.write("Subject: [PATCH %d/%d] %s\n" % (num, total, commit.message))
s.write("\n")
s.write("---\n")
s.write("TODO: Print diffstat\n")
s.write("\n")
try:
lhs_parent = repository.get_revision(revision_id).parent_ids[0]
except IndexError:
lhs_parent = _mod_revision.NULL_REVISION
tree_1 = repository.revision_tree(lhs_parent)
tree_2 = repository.revision_tree(revision_id)
differ = GitDiffTree.from_trees_options(tree_1, tree_2, s, 'utf8', None,
'a/', 'b/', None)
differ.show_diff(None, None)
s.write("-- \n")
s.write("bzr %s, bzr-git %d.%d.%d\n" % ((bzrlib.__version__, ) + bzr_git_version_info[:3]))
summary = "%04d-%s" % (num, commit.message.splitlines()[0].replace(" ", "-"))
return summary, s.getvalue()
@classmethod
def from_objects(cls, repository, revision_id, time, timezone,
target_branch, local_target_branch=None,
public_branch=None, message=None):
patches = []
submit_branch = _mod_branch.Branch.open(target_branch)
submit_branch.lock_read()
try:
submit_revision_id = submit_branch.last_revision()
repository.fetch(submit_branch.repository, submit_revision_id)
graph = repository.get_graph()
todo = graph.find_difference(submit_revision_id, revision_id)[1]
total = len(todo)
for i, revid in enumerate(graph.iter_topo_order(todo)):
patches.append(cls._generate_commit(repository, revid, i+1, total))
finally:
submit_branch.unlock()
return cls(revision_id, None, time, timezone, target_branch,
"".join([patch for (summary, patch) in patches]), None, public_branch, message)
def send_git(branch, revision_id, submit_branch, public_branch,
no_patch, no_bundle, message, base_revision_id):
return GitMergeDirective.from_objects(
branch.repository, revision_id, time.time(),
osutils.local_time_offset(), submit_branch,
public_branch=public_branch, message=message)
|