63
49
:param timezone: The timezone offset
64
50
:param target_branch: The branch to apply the merge to
65
51
:param patch: The text of a diff or bundle
66
:param patch_type: None, "diff" or "bundle", depending on the contents
68
52
:param source_branch: A public location to merge the revision from
69
53
:param message: The message to use when committing this merge
71
assert patch_type in (None, 'diff', 'bundle')
72
if patch_type != 'bundle' and source_branch is None:
73
raise errors.NoMergeSource()
74
if patch_type is not None and patch is None:
75
raise errors.PatchMissing(patch_type)
76
55
self.revision_id = revision_id
77
56
self.testament_sha1 = testament_sha1
79
58
self.timezone = timezone
80
59
self.target_branch = target_branch
82
self.patch_type = patch_type
83
61
self.source_branch = source_branch
84
62
self.message = message
87
def from_lines(klass, lines):
88
"""Deserialize a MergeRequest from an iterable of lines
90
:param lines: An iterable of lines
91
:return: a MergeRequest
93
line_iter = iter(lines)
94
for line in line_iter:
95
if line.startswith('# ' + klass._format_string):
99
raise errors.NotAMergeDirective(lines[0])
101
raise errors.NotAMergeDirective('')
102
stanza = rio.read_patch_stanza(line_iter)
103
patch_lines = list(line_iter)
104
if len(patch_lines) == 0:
108
patch = ''.join(patch_lines)
110
bundle_serializer.read_bundle(StringIO(patch))
111
except (errors.NotABundle, errors.BundleNotSupported,
115
patch_type = 'bundle'
116
time, timezone = timestamp.parse_patch_date(stanza.get('timestamp'))
118
for key in ('revision_id', 'testament_sha1', 'target_branch',
119
'source_branch', 'message'):
121
kwargs[key] = stanza.get(key)
124
kwargs['revision_id'] = kwargs['revision_id'].encode('utf-8')
125
return MergeDirective(time=time, timezone=timezone,
126
patch_type=patch_type, patch=patch, **kwargs)
64
def _to_lines(self, base_revision=False):
129
65
"""Serialize as a list of lines
131
67
:return: a list of lines
270
195
source_branch = _mod_branch.Branch.open(self.source_branch)
271
196
target_repo.fetch(source_branch.repository, self.revision_id)
272
197
return self.revision_id
200
class MergeDirective(_BaseMergeDirective):
202
"""A request to perform a merge into a branch.
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Designed to be serialized and mailed. It provides all the information
205
needed to perform a merge automatically, by providing at minimum a revision
206
bundle or the location of a branch.
208
The serialization format is robust against certain common forms of
209
deterioration caused by mailing.
211
The format is also designed to be patch-compatible. If the directive
212
includes a diff or revision bundle, it should be possible to apply it
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directly using the standard patch program.
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_format_string = 'Bazaar merge directive format 1'
218
def __init__(self, revision_id, testament_sha1, time, timezone,
219
target_branch, patch=None, patch_type=None,
220
source_branch=None, message=None, bundle=None):
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:param revision_id: The revision to merge
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:param testament_sha1: The sha1 of the testament of the revision to
226
:param time: The current POSIX timestamp time
227
:param timezone: The timezone offset
228
:param target_branch: The branch to apply the merge to
229
:param patch: The text of a diff or bundle
230
:param patch_type: None, "diff" or "bundle", depending on the contents
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:param source_branch: A public location to merge the revision from
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:param message: The message to use when committing this merge
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_BaseMergeDirective.__init__(self, revision_id, testament_sha1, time,
236
timezone, target_branch, patch, source_branch, message)
237
assert patch_type in (None, 'diff', 'bundle'), patch_type
238
if patch_type != 'bundle' and source_branch is None:
239
raise errors.NoMergeSource()
240
if patch_type is not None and patch is None:
241
raise errors.PatchMissing(patch_type)
242
self.patch_type = patch_type
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def clear_payload(self):
246
self.patch_type = None
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def get_raw_bundle(self):
252
if self.patch_type == 'bundle':
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bundle = property(_bundle)
260
def from_lines(klass, lines):
261
"""Deserialize a MergeRequest from an iterable of lines
263
:param lines: An iterable of lines
264
:return: a MergeRequest
266
line_iter = iter(lines)
267
for line in line_iter:
268
if line.startswith('# Bazaar merge directive format '):
272
raise errors.NotAMergeDirective(lines[0])
274
raise errors.NotAMergeDirective('')
275
return _format_registry.get(line[2:].rstrip())._from_lines(line_iter)
278
def _from_lines(klass, line_iter):
279
stanza = rio.read_patch_stanza(line_iter)
280
patch_lines = list(line_iter)
281
if len(patch_lines) == 0:
285
patch = ''.join(patch_lines)
287
bundle_serializer.read_bundle(StringIO(patch))
288
except (errors.NotABundle, errors.BundleNotSupported,
292
patch_type = 'bundle'
293
time, timezone = timestamp.parse_patch_date(stanza.get('timestamp'))
295
for key in ('revision_id', 'testament_sha1', 'target_branch',
296
'source_branch', 'message'):
298
kwargs[key] = stanza.get(key)
301
kwargs['revision_id'] = kwargs['revision_id'].encode('utf-8')
302
return MergeDirective(time=time, timezone=timezone,
303
patch_type=patch_type, patch=patch, **kwargs)
306
lines = self._to_lines()
307
if self.patch is not None:
308
lines.extend(self.patch.splitlines(True))
312
def _generate_bundle(repository, revision_id, ancestor_id):
314
bundle_serializer.write_bundle(repository, revision_id,
315
ancestor_id, s, '0.9')
318
def get_merge_request(self, repository):
319
"""Provide data for performing a merge
321
Returns suggested base, suggested target, and patch verification status
323
return None, self.revision_id, 'inapplicable'
326
class MergeDirective2(_BaseMergeDirective):
328
_format_string = 'Bazaar merge directive format 2 (Bazaar 0.19)'
330
def __init__(self, revision_id, testament_sha1, time, timezone,
331
target_branch, patch=None, source_branch=None, message=None,
332
bundle=None, base_revision_id=None):
333
if source_branch is None and bundle is None:
334
raise errors.NoMergeSource()
335
_BaseMergeDirective.__init__(self, revision_id, testament_sha1, time,
336
timezone, target_branch, patch, source_branch, message)
338
self.base_revision_id = base_revision_id
340
def _patch_type(self):
341
if self.bundle is not None:
343
elif self.patch is not None:
348
patch_type = property(_patch_type)
350
def clear_payload(self):
354
def get_raw_bundle(self):
355
if self.bundle is None:
358
return self.bundle.decode('base-64')
361
def _from_lines(klass, line_iter):
362
stanza = rio.read_patch_stanza(line_iter)
366
start = line_iter.next()
367
except StopIteration:
370
if start.startswith('# Begin patch'):
372
for line in line_iter:
373
if line.startswith('# Begin bundle'):
376
patch_lines.append(line)
379
patch = ''.join(patch_lines)
380
if start is not None:
381
if start.startswith('# Begin bundle'):
382
bundle = ''.join(line_iter)
384
raise errors.IllegalMergeDirectivePayload(start)
385
time, timezone = timestamp.parse_patch_date(stanza.get('timestamp'))
387
for key in ('revision_id', 'testament_sha1', 'target_branch',
388
'source_branch', 'message', 'base_revision_id'):
390
kwargs[key] = stanza.get(key)
393
kwargs['revision_id'] = kwargs['revision_id'].encode('utf-8')
394
kwargs['base_revision_id'] =\
395
kwargs['base_revision_id'].encode('utf-8')
396
return klass(time=time, timezone=timezone, patch=patch, bundle=bundle,
400
lines = self._to_lines(base_revision=True)
401
if self.patch is not None:
402
lines.append('# Begin patch\n')
403
lines.extend(self.patch.splitlines(True))
404
if self.bundle is not None:
405
lines.append('# Begin bundle\n')
406
lines.extend(self.bundle.splitlines(True))
410
def from_objects(klass, repository, revision_id, time, timezone,
411
target_branch, include_patch=True, include_bundle=True,
412
local_target_branch=None, public_branch=None, message=None,
413
base_revision_id=None):
414
"""Generate a merge directive from various objects
416
:param repository: The repository containing the revision
417
:param revision_id: The revision to merge
418
:param time: The POSIX timestamp of the date the request was issued.
419
:param timezone: The timezone of the request
420
:param target_branch: The url of the branch to merge into
421
:param include_patch: If true, include a preview patch
422
:param include_bundle: If true, include a bundle
423
:param local_target_branch: a local copy of the target branch
424
:param public_branch: location of a public branch containing the target
426
:param message: Message to use when committing the merge
427
:return: The merge directive
429
The public branch is always used if supplied. If no bundle is
430
included, the public branch must be supplied, and will be verified.
432
If the message is not supplied, the message from revision_id will be
437
repository.lock_write()
438
locked.append(repository)
439
t_revision_id = revision_id
440
if revision_id == 'null:':
442
t = testament.StrictTestament3.from_revision(repository,
444
submit_branch = _mod_branch.Branch.open(target_branch)
445
submit_branch.lock_read()
446
locked.append(submit_branch)
447
if submit_branch.get_public_branch() is not None:
448
target_branch = submit_branch.get_public_branch()
449
submit_revision_id = submit_branch.last_revision()
450
submit_revision_id = _mod_revision.ensure_null(submit_revision_id)
451
graph = repository.get_graph(submit_branch.repository)
452
ancestor_id = graph.find_unique_lca(revision_id,
454
if base_revision_id is None:
455
base_revision_id = ancestor_id
456
if (include_patch, include_bundle) != (False, False):
457
repository.fetch(submit_branch.repository, submit_revision_id)
459
patch = klass._generate_diff(repository, revision_id,
465
bundle = klass._generate_bundle(repository, revision_id,
466
ancestor_id).encode('base-64')
470
if public_branch is not None and not include_bundle:
471
public_branch_obj = _mod_branch.Branch.open(public_branch)
472
public_branch_obj.lock_read()
473
locked.append(public_branch_obj)
474
if not public_branch_obj.repository.has_revision(
476
raise errors.PublicBranchOutOfDate(public_branch,
479
for entry in reversed(locked):
481
return klass(revision_id, t.as_sha1(), time, timezone, target_branch,
482
patch, public_branch, message, bundle, base_revision_id)
484
def _verify_patch(self, repository):
485
calculated_patch = self._generate_diff(repository, self.revision_id,
486
self.base_revision_id)
487
# Convert line-endings to UNIX
488
stored_patch = re.sub('\r\n?', '\n', self.patch)
489
# Strip trailing whitespace
490
calculated_patch = re.sub(' *\n', '\n', calculated_patch)
491
stored_patch = re.sub(' *\n', '\n', stored_patch)
492
return (calculated_patch == stored_patch)
494
def get_merge_request(self, repository):
495
"""Provide data for performing a merge
497
Returns suggested base, suggested target, and patch verification status
499
verified = self._maybe_verify(repository)
500
return self.base_revision_id, self.revision_id, verified
502
def _maybe_verify(self, repository):
503
if self.patch is not None:
504
if self._verify_patch(repository):
509
return 'inapplicable'
512
class MergeDirectiveFormatRegistry(registry.Registry):
514
def register(self, directive):
515
registry.Registry.register(self, directive._format_string, directive)
518
_format_registry = MergeDirectiveFormatRegistry()
519
_format_registry.register(MergeDirective)
520
_format_registry.register(MergeDirective2)