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Viewing changes to breezy/plugins/propose/gitlabs.py

  • Committer: Jelmer Vernooij
  • Date: 2020-01-11 17:41:33 UTC
  • mto: This revision was merged to the branch mainline in revision 7440.
  • Revision ID: jelmer@jelmer.uk-20200111174133-ob2p0twwsmvw5ut7
Don't lazy-import errors.

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breezy/plugins/propose/gitlabs.py
 
1
# Copyright (C) 2018 Breezy Developers
 
2
#
 
3
# This program is free software; you can redistribute it and/or modify
 
4
# it under the terms of the GNU General Public License as published by
 
5
# the Free Software Foundation; either version 2 of the License, or
 
6
# (at your option) any later version.
 
7
#
 
8
# This program is distributed in the hope that it will be useful,
 
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
11
# GNU General Public License for more details.
 
12
#
 
13
# You should have received a copy of the GNU General Public License
 
14
# along with this program; if not, write to the Free Software
 
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
16
 
 
17
"""Support for GitLab."""
 
18
 
 
19
from __future__ import absolute_import
 
20
 
 
21
import json
 
22
import os
 
23
import time
 
24
 
 
25
from ... import (
 
26
    bedding,
 
27
    branch as _mod_branch,
 
28
    controldir,
 
29
    errors,
 
30
    urlutils,
 
31
    )
 
32
from ...git.urls import git_url_to_bzr_url
 
33
from ...sixish import PY3
 
34
from ...trace import mutter
 
35
from ...transport import get_transport
 
36
 
 
37
from .propose import (
 
38
    Hoster,
 
39
    MergeProposal,
 
40
    MergeProposalBuilder,
 
41
    MergeProposalExists,
 
42
    NoSuchProject,
 
43
    PrerequisiteBranchUnsupported,
 
44
    UnsupportedHoster,
 
45
    )
 
46
 
 
47
 
 
48
_DEFAULT_FILES = ['/etc/python-gitlab.cfg', '~/.python-gitlab.cfg']
 
49
DEFAULT_PAGE_SIZE = 50
 
50
 
 
51
 
 
52
def mp_status_to_status(status):
 
53
    return {
 
54
        'all': 'all',
 
55
        'open': 'opened',
 
56
        'merged': 'merged',
 
57
        'closed': 'closed'}[status]
 
58
 
 
59
 
 
60
class NotGitLabUrl(errors.BzrError):
 
61
 
 
62
    _fmt = "Not a GitLab URL: %(url)s"
 
63
 
 
64
    def __init__(self, url):
 
65
        errors.BzrError.__init__(self)
 
66
        self.url = url
 
67
 
 
68
 
 
69
class NotMergeRequestUrl(errors.BzrError):
 
70
 
 
71
    _fmt = "Not a merge proposal URL: %(url)s"
 
72
 
 
73
    def __init__(self, host, url):
 
74
        errors.BzrError.__init__(self)
 
75
        self.host = host
 
76
        self.url = url
 
77
 
 
78
 
 
79
class DifferentGitLabInstances(errors.BzrError):
 
80
 
 
81
    _fmt = ("Can't create merge proposals across GitLab instances: "
 
82
            "%(source_host)s and %(target_host)s")
 
83
 
 
84
    def __init__(self, source_host, target_host):
 
85
        self.source_host = source_host
 
86
        self.target_host = target_host
 
87
 
 
88
 
 
89
class GitLabLoginMissing(errors.BzrError):
 
90
 
 
91
    _fmt = ("Please log into GitLab")
 
92
 
 
93
 
 
94
class GitlabLoginError(errors.BzrError):
 
95
 
 
96
    _fmt = ("Error logging in: %(error)s")
 
97
 
 
98
    def __init__(self, error):
 
99
        self.error = error
 
100
 
 
101
 
 
102
def default_config_path():
 
103
    return os.path.join(bedding.config_dir(), 'gitlab.conf')
 
104
 
 
105
 
 
106
def store_gitlab_token(name, url, private_token):
 
107
    """Store a GitLab token in a configuration file."""
 
108
    import configparser
 
109
    config = configparser.ConfigParser()
 
110
    path = default_config_path()
 
111
    config.read([path])
 
112
    config.add_section(name)
 
113
    config[name]['url'] = url
 
114
    config[name]['private_token'] = private_token
 
115
    with open(path, 'w') as f:
 
116
        config.write(f)
 
117
 
 
118
 
 
119
def iter_tokens():
 
120
    import configparser
 
121
    config = configparser.ConfigParser()
 
122
    config.read(
 
123
        [os.path.expanduser(p) for p in _DEFAULT_FILES] +
 
124
        [default_config_path()])
 
125
    for name, section in config.items():
 
126
        yield name, section
 
127
 
 
128
 
 
129
def get_credentials_by_url(url):
 
130
    for name, credentials in iter_tokens():
 
131
        if 'url' not in credentials:
 
132
            continue
 
133
        if credentials['url'].rstrip('/') == url.rstrip('/'):
 
134
            return credentials
 
135
    else:
 
136
        return None
 
137
 
 
138
 
 
139
def parse_gitlab_url(url):
 
140
    (scheme, user, password, host, port, path) = urlutils.parse_url(
 
141
        url)
 
142
    if scheme not in ('git+ssh', 'https', 'http'):
 
143
        raise NotGitLabUrl(url)
 
144
    if not host:
 
145
        raise NotGitLabUrl(url)
 
146
    path = path.strip('/')
 
147
    if path.endswith('.git'):
 
148
        path = path[:-4]
 
149
    return host, path
 
150
 
 
151
 
 
152
def parse_gitlab_branch_url(branch):
 
153
    url = urlutils.split_segment_parameters(branch.user_url)[0]
 
154
    host, path = parse_gitlab_url(url)
 
155
    return host, path, branch.name
 
156
 
 
157
 
 
158
def parse_gitlab_merge_request_url(url):
 
159
    (scheme, user, password, host, port, path) = urlutils.parse_url(
 
160
        url)
 
161
    if scheme not in ('git+ssh', 'https', 'http'):
 
162
        raise NotGitLabUrl(url)
 
163
    if not host:
 
164
        raise NotGitLabUrl(url)
 
165
    path = path.strip('/')
 
166
    parts = path.split('/')
 
167
    if parts[-2] != 'merge_requests':
 
168
        raise NotMergeRequestUrl(host, url)
 
169
    return host, '/'.join(parts[:-2]), int(parts[-1])
 
170
 
 
171
 
 
172
class GitLabMergeProposal(MergeProposal):
 
173
 
 
174
    def __init__(self, gl, mr):
 
175
        self.gl = gl
 
176
        self._mr = mr
 
177
 
 
178
    def _update(self, **kwargs):
 
179
        self.gl._update_merge_request(self._mr['project_id'], self._mr['iid'], kwargs)
 
180
 
 
181
    def __repr__(self):
 
182
        return "<%s at %r>" % (type(self).__name__, self._mr['web_url'])
 
183
 
 
184
    @property
 
185
    def url(self):
 
186
        return self._mr['web_url']
 
187
 
 
188
    def get_description(self):
 
189
        return self._mr['description']
 
190
 
 
191
    def set_description(self, description):
 
192
        self._update(description=description, title=description.splitlines()[0])
 
193
 
 
194
    def get_commit_message(self):
 
195
        return self._mr.get('merge_commit_message')
 
196
 
 
197
    def set_commit_message(self, message):
 
198
        raise errors.UnsupportedOperation(self.set_commit_message, self)
 
199
 
 
200
    def _branch_url_from_project(self, project_id, branch_name):
 
201
        if project_id is None:
 
202
            return None
 
203
        project = self.gl._get_project(project_id)
 
204
        return gitlab_url_to_bzr_url(project['http_url_to_repo'], branch_name)
 
205
 
 
206
    def get_source_branch_url(self):
 
207
        return self._branch_url_from_project(
 
208
            self._mr['source_project_id'], self._mr['source_branch'])
 
209
 
 
210
    def get_target_branch_url(self):
 
211
        return self._branch_url_from_project(
 
212
            self._mr['target_project_id'], self._mr['target_branch'])
 
213
 
 
214
    def _get_project_name(self, project_id):
 
215
        source_project = self.gl._get_project(project_id)
 
216
        return source_project['path_with_namespace']
 
217
 
 
218
    def get_source_project(self):
 
219
        return self._get_project_name(self._mr['source_project_id'])
 
220
 
 
221
    def get_target_project(self):
 
222
        return self._get_project_name(self._mr['target_project_id'])
 
223
 
 
224
    def is_merged(self):
 
225
        return (self._mr['state'] == 'merged')
 
226
 
 
227
    def is_closed(self):
 
228
        return (self._mr['state'] == 'closed')
 
229
 
 
230
    def reopen(self):
 
231
        return self._update(state_event='reopen')
 
232
 
 
233
    def close(self):
 
234
        self._update(state_event='close')
 
235
 
 
236
    def merge(self, commit_message=None):
 
237
        # https://docs.gitlab.com/ee/api/merge_requests.html#accept-mr
 
238
        self._mr.merge(merge_commit_message=commit_message)
 
239
 
 
240
    def can_be_merged(self):
 
241
        if self._mr['merge_status'] == 'cannot_be_merged':
 
242
            return False
 
243
        elif self._mr['merge_status'] == 'can_be_merged':
 
244
            return True
 
245
        else:
 
246
            raise ValueError(self._mr['merge_status'])
 
247
 
 
248
    def get_merged_by(self):
 
249
        user = self._mr.get('merged_by')
 
250
        if user is None:
 
251
            return None
 
252
        return user['username']
 
253
 
 
254
    def get_merged_at(self):
 
255
        merged_at = self._mr.get('merged_at')
 
256
        if merged_at is None:
 
257
            return None
 
258
        import iso8601
 
259
        return iso8601.parse_date(merged_at)
 
260
 
 
261
 
 
262
def gitlab_url_to_bzr_url(url, name):
 
263
    if not PY3:
 
264
        name = name.encode('utf-8')
 
265
    return git_url_to_bzr_url(url, branch=name)
 
266
 
 
267
 
 
268
class GitLab(Hoster):
 
269
    """GitLab hoster implementation."""
 
270
 
 
271
    supports_merge_proposal_labels = True
 
272
    supports_merge_proposal_commit_message = False
 
273
 
 
274
    def __repr__(self):
 
275
        return "<GitLab(%r)>" % self.base_url
 
276
 
 
277
    @property
 
278
    def base_url(self):
 
279
        return self.transport.base
 
280
 
 
281
    def _api_request(self, method, path, fields=None, body=None):
 
282
        return self.transport.request(
 
283
            method, urlutils.join(self.base_url, 'api', 'v4', path),
 
284
            headers=self.headers, fields=fields, body=body)
 
285
 
 
286
    def __init__(self, transport, private_token):
 
287
        self.transport = transport
 
288
        self.headers = {"Private-Token": private_token}
 
289
        self.check()
 
290
 
 
291
    def _get_user(self, username):
 
292
        path = 'users/%s' % urlutils.quote(str(username), '')
 
293
        response = self._api_request('GET', path)
 
294
        if response.status == 404:
 
295
            raise KeyError('no such user %s' % username)
 
296
        if response.status == 200:
 
297
            return json.loads(response.data)
 
298
        raise errors.InvalidHttpResponse(path, response.text)
 
299
 
 
300
    def _get_user_by_email(self, email):
 
301
        path = 'users?search=%s' % urlutils.quote(str(email), '')
 
302
        response = self._api_request('GET', path)
 
303
        if response.status == 404:
 
304
            raise KeyError('no such user %s' % email)
 
305
        if response.status == 200:
 
306
            ret = json.loads(response.data)
 
307
            if len(ret) != 1:
 
308
                raise ValueError('unexpected number of results; %r' % ret)
 
309
            return ret[0]
 
310
        raise errors.InvalidHttpResponse(path, response.text)
 
311
 
 
312
    def _get_project(self, project_name):
 
313
        path = 'projects/%s' % urlutils.quote(str(project_name), '')
 
314
        response = self._api_request('GET', path)
 
315
        if response.status == 404:
 
316
            raise NoSuchProject(project_name)
 
317
        if response.status == 200:
 
318
            return json.loads(response.data)
 
319
        raise errors.InvalidHttpResponse(path, response.text)
 
320
 
 
321
    def _fork_project(self, project_name, timeout=50, interval=5):
 
322
        path = 'projects/%s/fork' % urlutils.quote(str(project_name), '')
 
323
        response = self._api_request('POST', path)
 
324
        if response.status not in (200, 201):
 
325
            raise errors.InvalidHttpResponse(path, response.text)
 
326
        # The response should be valid JSON, but let's ignore it
 
327
        project = json.loads(response.data)
 
328
        # Spin and wait until import_status for new project
 
329
        # is complete.
 
330
        deadline = time.time() + timeout
 
331
        while project['import_status'] not in ('finished', 'none'):
 
332
            mutter('import status is %s', project['import_status'])
 
333
            if time.time() > deadline:
 
334
                raise Exception('timeout waiting for project to become available')
 
335
            time.sleep(interval)
 
336
            project = self._get_project(project['path_with_namespace'])
 
337
        return project
 
338
 
 
339
    def _get_logged_in_username(self):
 
340
        return self._current_user['username']
 
341
 
 
342
    def _list_paged(self, path, parameters=None, per_page=None):
 
343
        if parameters is None:
 
344
            parameters = {}
 
345
        else:
 
346
            parameters = dict(parameters.items())
 
347
        if per_page:
 
348
            parameters['per_page'] = str(per_page)
 
349
        page = "1"
 
350
        while page:
 
351
            parameters['page'] = page
 
352
            response = self._api_request(
 
353
                'GET', path + '?' +
 
354
                ';'.join(['%s=%s' % item for item in parameters.items()]))
 
355
            if response.status == 403:
 
356
                raise errors.PermissionDenied(response.text)
 
357
            if response.status != 200:
 
358
                raise errors.InvalidHttpResponse(path, response.text)
 
359
            page = response.getheader("X-Next-Page")
 
360
            for entry in json.loads(response.data):
 
361
                yield entry
 
362
 
 
363
    def _list_merge_requests(self, owner=None, project=None, state=None):
 
364
        if project is not None:
 
365
            path = 'projects/%s/merge_requests' % urlutils.quote(str(project), '')
 
366
        else:
 
367
            path = 'merge_requests'
 
368
        parameters = {}
 
369
        if state:
 
370
            parameters['state'] = state
 
371
        if owner:
 
372
            parameters['owner_id'] = urlutils.quote(owner, '')
 
373
        return self._list_paged(path, parameters, per_page=DEFAULT_PAGE_SIZE)
 
374
 
 
375
    def _list_projects(self, owner):
 
376
        path = 'users/%s/projects' % urlutils.quote(str(owner), '')
 
377
        parameters = {}
 
378
        return self._list_paged(path, parameters, per_page=DEFAULT_PAGE_SIZE)
 
379
 
 
380
    def _update_merge_request(self, project_id, iid, mr):
 
381
        path = 'projects/%s/merge_requests/%s' % (
 
382
            urlutils.quote(str(project_id), ''), iid)
 
383
        response = self._api_request('PUT', path, fields=mr)
 
384
        if response.status == 200:
 
385
            return json.loads(response.data)
 
386
        raise errors.InvalidHttpResponse(path, response.text)
 
387
 
 
388
    def _create_mergerequest(
 
389
            self, title, source_project_id, target_project_id,
 
390
            source_branch_name, target_branch_name, description,
 
391
            labels=None):
 
392
        path = 'projects/%s/merge_requests' % source_project_id
 
393
        fields = {
 
394
            'title': title,
 
395
            'source_branch': source_branch_name,
 
396
            'target_branch': target_branch_name,
 
397
            'target_project_id': target_project_id,
 
398
            'description': description,
 
399
            }
 
400
        if labels:
 
401
            fields['labels'] = labels
 
402
        response = self._api_request('POST', path, fields=fields)
 
403
        if response.status == 403:
 
404
            raise errors.PermissionDenied(response.text)
 
405
        if response.status == 409:
 
406
            raise MergeProposalExists(self.source_branch.user_url)
 
407
        if response.status != 201:
 
408
            raise errors.InvalidHttpResponse(path, response.text)
 
409
        return json.loads(response.data)
 
410
 
 
411
    def get_push_url(self, branch):
 
412
        (host, project_name, branch_name) = parse_gitlab_branch_url(branch)
 
413
        project = self._get_project(project_name)
 
414
        return gitlab_url_to_bzr_url(
 
415
            project['ssh_url_to_repo'], branch_name)
 
416
 
 
417
    def publish_derived(self, local_branch, base_branch, name, project=None,
 
418
                        owner=None, revision_id=None, overwrite=False,
 
419
                        allow_lossy=True):
 
420
        (host, base_project, base_branch_name) = parse_gitlab_branch_url(base_branch)
 
421
        if owner is None:
 
422
            owner = self._get_logged_in_username()
 
423
        if project is None:
 
424
            project = self._get_project(base_project)['path']
 
425
        try:
 
426
            target_project = self._get_project('%s/%s' % (owner, project))
 
427
        except NoSuchProject:
 
428
            target_project = self._fork_project(base_project)
 
429
        remote_repo_url = git_url_to_bzr_url(target_project['ssh_url_to_repo'])
 
430
        remote_dir = controldir.ControlDir.open(remote_repo_url)
 
431
        try:
 
432
            push_result = remote_dir.push_branch(
 
433
                local_branch, revision_id=revision_id, overwrite=overwrite,
 
434
                name=name)
 
435
        except errors.NoRoundtrippingSupport:
 
436
            if not allow_lossy:
 
437
                raise
 
438
            push_result = remote_dir.push_branch(
 
439
                local_branch, revision_id=revision_id, overwrite=overwrite,
 
440
                name=name, lossy=True)
 
441
        public_url = gitlab_url_to_bzr_url(
 
442
            target_project['http_url_to_repo'], name)
 
443
        return push_result.target_branch, public_url
 
444
 
 
445
    def get_derived_branch(self, base_branch, name, project=None, owner=None):
 
446
        (host, base_project, base_branch_name) = parse_gitlab_branch_url(base_branch)
 
447
        if owner is None:
 
448
            owner = self._get_logged_in_username()
 
449
        if project is None:
 
450
            project = self._get_project(base_project)['path']
 
451
        try:
 
452
            target_project = self._get_project('%s/%s' % (owner, project))
 
453
        except NoSuchProject:
 
454
            raise errors.NotBranchError('%s/%s/%s' % (self.base_url, owner, project))
 
455
        return _mod_branch.Branch.open(gitlab_url_to_bzr_url(
 
456
            target_project['ssh_url_to_repo'], name))
 
457
 
 
458
    def get_proposer(self, source_branch, target_branch):
 
459
        return GitlabMergeProposalBuilder(self, source_branch, target_branch)
 
460
 
 
461
    def iter_proposals(self, source_branch, target_branch, status):
 
462
        (source_host, source_project_name, source_branch_name) = (
 
463
            parse_gitlab_branch_url(source_branch))
 
464
        (target_host, target_project_name, target_branch_name) = (
 
465
            parse_gitlab_branch_url(target_branch))
 
466
        if source_host != target_host:
 
467
            raise DifferentGitLabInstances(source_host, target_host)
 
468
        source_project = self._get_project(source_project_name)
 
469
        target_project = self._get_project(target_project_name)
 
470
        state = mp_status_to_status(status)
 
471
        for mr in self._list_merge_requests(
 
472
                project=target_project['id'], state=state):
 
473
            if (mr['source_project_id'] != source_project['id'] or
 
474
                    mr['source_branch'] != source_branch_name or
 
475
                    mr['target_project_id'] != target_project['id'] or
 
476
                    mr['target_branch'] != target_branch_name):
 
477
                continue
 
478
            yield GitLabMergeProposal(self, mr)
 
479
 
 
480
    def hosts(self, branch):
 
481
        try:
 
482
            (host, project, branch_name) = parse_gitlab_branch_url(branch)
 
483
        except NotGitLabUrl:
 
484
            return False
 
485
        return (self.base_url == ('https://%s' % host))
 
486
 
 
487
    def check(self):
 
488
        response = self._api_request('GET', 'user')
 
489
        if response.status == 200:
 
490
            self._current_user = json.loads(response.data)
 
491
            return
 
492
        if response == 401:
 
493
            if json.loads(response.data) == {"message": "401 Unauthorized"}:
 
494
                raise GitLabLoginMissing()
 
495
            else:
 
496
                raise GitlabLoginError(response.text)
 
497
        raise UnsupportedHoster(url)
 
498
 
 
499
    @classmethod
 
500
    def probe_from_url(cls, url, possible_transports=None):
 
501
        try:
 
502
            (host, project) = parse_gitlab_url(url)
 
503
        except NotGitLabUrl:
 
504
            raise UnsupportedHoster(url)
 
505
        transport = get_transport(
 
506
            'https://%s' % host, possible_transports=possible_transports)
 
507
        credentials = get_credentials_by_url(transport.base)
 
508
        if credentials is not None:
 
509
            return cls(transport, credentials.get('private_token'))
 
510
        raise UnsupportedHoster(url)
 
511
 
 
512
    @classmethod
 
513
    def iter_instances(cls):
 
514
        for name, credentials in iter_tokens():
 
515
            if 'url' not in credentials:
 
516
                continue
 
517
            yield cls(
 
518
                get_transport(credentials['url']),
 
519
                private_token=credentials.get('private_token'))
 
520
 
 
521
    def iter_my_proposals(self, status='open'):
 
522
        state = mp_status_to_status(status)
 
523
        for mp in self._list_merge_requests(
 
524
                owner=self._get_logged_in_username(), state=state):
 
525
            yield GitLabMergeProposal(self, mp)
 
526
 
 
527
    def iter_my_forks(self):
 
528
        for project in self._list_projects(owner=self._get_logged_in_username()):
 
529
            base_project = project.get('forked_from_project')
 
530
            if not base_project:
 
531
                continue
 
532
            yield project['path_with_namespace']
 
533
 
 
534
    def get_proposal_by_url(self, url):
 
535
        try:
 
536
            (host, project, merge_id) = parse_gitlab_merge_request_url(url)
 
537
        except NotGitLabUrl:
 
538
            raise UnsupportedHoster(url)
 
539
        except NotMergeRequestUrl as e:
 
540
            if self.base_url == ('https://%s' % e.host):
 
541
                raise
 
542
            else:
 
543
                raise UnsupportedHoster(url)
 
544
        if self.base_url != ('https://%s' % host):
 
545
            raise UnsupportedHoster(url)
 
546
        project = self._get_project(project)
 
547
        mr = project.mergerequests.get(merge_id)
 
548
        return GitLabMergeProposal(mr)
 
549
 
 
550
    def delete_project(self, project):
 
551
        path = 'projects/%s' % urlutils.quote(str(project_name), '')
 
552
        response = self._api_request('DELETE', path)
 
553
        if response.status == 404:
 
554
            raise NoSuchProject(project_name)
 
555
        if response.status != 200:
 
556
            raise errors.InvalidHttpResponse(path, response.text)
 
557
 
 
558
 
 
559
class GitlabMergeProposalBuilder(MergeProposalBuilder):
 
560
 
 
561
    def __init__(self, gl, source_branch, target_branch):
 
562
        self.gl = gl
 
563
        self.source_branch = source_branch
 
564
        (self.source_host, self.source_project_name, self.source_branch_name) = (
 
565
            parse_gitlab_branch_url(source_branch))
 
566
        self.target_branch = target_branch
 
567
        (self.target_host, self.target_project_name, self.target_branch_name) = (
 
568
            parse_gitlab_branch_url(target_branch))
 
569
        if self.source_host != self.target_host:
 
570
            raise DifferentGitLabInstances(self.source_host, self.target_host)
 
571
 
 
572
    def get_infotext(self):
 
573
        """Determine the initial comment for the merge proposal."""
 
574
        info = []
 
575
        info.append("Gitlab instance: %s\n" % self.target_host)
 
576
        info.append("Source: %s\n" % self.source_branch.user_url)
 
577
        info.append("Target: %s\n" % self.target_branch.user_url)
 
578
        return ''.join(info)
 
579
 
 
580
    def get_initial_body(self):
 
581
        """Get a body for the proposal for the user to modify.
 
582
 
 
583
        :return: a str or None.
 
584
        """
 
585
        return None
 
586
 
 
587
    def create_proposal(self, description, reviewers=None, labels=None,
 
588
                        prerequisite_branch=None, commit_message=None):
 
589
        """Perform the submission."""
 
590
        # https://docs.gitlab.com/ee/api/merge_requests.html#create-mr
 
591
        if prerequisite_branch is not None:
 
592
            raise PrerequisiteBranchUnsupported(self)
 
593
        # Note that commit_message is ignored, since Gitlab doesn't support it.
 
594
        source_project = self.gl._get_project(self.source_project_name)
 
595
        target_project = self.gl._get_project(self.target_project_name)
 
596
        # TODO(jelmer): Allow setting title explicitly
 
597
        title = description.splitlines()[0]
 
598
        # TODO(jelmer): Allow setting allow_collaboration field
 
599
        # TODO(jelmer): Allow setting milestone field
 
600
        # TODO(jelmer): Allow setting squash field
 
601
        kwargs = {
 
602
            'title': title,
 
603
            'source_project_id': source_project['id'],
 
604
            'target_project_id': target_project['id'],
 
605
            'source_branch_name': self.source_branch_name,
 
606
            'target_branch_name': self.target_branch_name,
 
607
            'description': description}
 
608
        if labels:
 
609
            kwargs['labels'] = ','.join(labels)
 
610
        if reviewers:
 
611
            kwargs['assignee_ids'] = []
 
612
            for reviewer in reviewers:
 
613
                if '@' in reviewer:
 
614
                    user = self.gl._get_user_by_email(reviewer)
 
615
                else:
 
616
                    user = self.gl._get_user(reviewer)
 
617
                kwargs['assignee_ids'].append(user['id'])
 
618
        merge_request = self.gl._create_mergerequest(**kwargs)
 
619
        return GitLabMergeProposal(self.gl, merge_request)
 
620
 
 
621
 
 
622
def register_gitlab_instance(shortname, url):
 
623
    """Register a gitlab instance.
 
624
 
 
625
    :param shortname: Short name (e.g. "gitlab")
 
626
    :param url: URL to the gitlab instance
 
627
    """
 
628
    from breezy.bugtracker import (
 
629
        tracker_registry,
 
630
        ProjectIntegerBugTracker,
 
631
        )
 
632
    tracker_registry.register(
 
633
        shortname, ProjectIntegerBugTracker(
 
634
            shortname, url + '/{project}/issues/{id}'))