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Viewing changes to breezy/plugins/gitlab/hoster.py

  • Committer: Jelmer Vernooij
  • Date: 2020-07-15 21:51:27 UTC
  • mto: (7490.40.58 work)
  • mto: This revision was merged to the branch mainline in revision 7519.
  • Revision ID: jelmer@jelmer.uk-20200715215127-3hn9ktbg3f1xikjj
More fixes for hg probing.

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breezy/plugins/gitlab/hoster.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
    determine_title,
 
39
    Hoster,
 
40
    MergeProposal,
 
41
    MergeProposalBuilder,
 
42
    MergeProposalExists,
 
43
    NoSuchProject,
 
44
    PrerequisiteBranchUnsupported,
 
45
    UnsupportedHoster,
 
46
    )
 
47
 
 
48
 
 
49
_DEFAULT_FILES = ['/etc/python-gitlab.cfg', '~/.python-gitlab.cfg']
 
50
DEFAULT_PAGE_SIZE = 50
 
51
 
 
52
 
 
53
def mp_status_to_status(status):
 
54
    return {
 
55
        'all': 'all',
 
56
        'open': 'opened',
 
57
        'merged': 'merged',
 
58
        'closed': 'closed'}[status]
 
59
 
 
60
 
 
61
class NotGitLabUrl(errors.BzrError):
 
62
 
 
63
    _fmt = "Not a GitLab URL: %(url)s"
 
64
 
 
65
    def __init__(self, url):
 
66
        errors.BzrError.__init__(self)
 
67
        self.url = url
 
68
 
 
69
 
 
70
class NotMergeRequestUrl(errors.BzrError):
 
71
 
 
72
    _fmt = "Not a merge proposal URL: %(url)s"
 
73
 
 
74
    def __init__(self, host, url):
 
75
        errors.BzrError.__init__(self)
 
76
        self.host = host
 
77
        self.url = url
 
78
 
 
79
 
 
80
class DifferentGitLabInstances(errors.BzrError):
 
81
 
 
82
    _fmt = ("Can't create merge proposals across GitLab instances: "
 
83
            "%(source_host)s and %(target_host)s")
 
84
 
 
85
    def __init__(self, source_host, target_host):
 
86
        self.source_host = source_host
 
87
        self.target_host = target_host
 
88
 
 
89
 
 
90
class GitLabLoginMissing(errors.BzrError):
 
91
 
 
92
    _fmt = ("Please log into GitLab")
 
93
 
 
94
 
 
95
class GitlabLoginError(errors.BzrError):
 
96
 
 
97
    _fmt = ("Error logging in: %(error)s")
 
98
 
 
99
    def __init__(self, error):
 
100
        self.error = error
 
101
 
 
102
 
 
103
class ForkingDisabled(errors.BzrError):
 
104
 
 
105
    _fmt = ("Forking on project %(project)s is disabled.")
 
106
 
 
107
    def __init__(self, project):
 
108
        self.project = project
 
109
 
 
110
 
 
111
class MergeRequestExists(Exception):
 
112
    """Raised when a merge requests already exists."""
 
113
 
 
114
 
 
115
def default_config_path():
 
116
    return os.path.join(bedding.config_dir(), 'gitlab.conf')
 
117
 
 
118
 
 
119
def store_gitlab_token(name, url, private_token):
 
120
    """Store a GitLab token in a configuration file."""
 
121
    import configparser
 
122
    config = configparser.ConfigParser()
 
123
    path = default_config_path()
 
124
    config.read([path])
 
125
    config.add_section(name)
 
126
    config[name]['url'] = url
 
127
    config[name]['private_token'] = private_token
 
128
    with open(path, 'w') as f:
 
129
        config.write(f)
 
130
 
 
131
 
 
132
def iter_tokens():
 
133
    import configparser
 
134
    config = configparser.ConfigParser()
 
135
    config.read(
 
136
        [os.path.expanduser(p) for p in _DEFAULT_FILES] +
 
137
        [default_config_path()])
 
138
    for name, section in config.items():
 
139
        yield name, section
 
140
 
 
141
 
 
142
def get_credentials_by_url(url):
 
143
    for name, credentials in iter_tokens():
 
144
        if 'url' not in credentials:
 
145
            continue
 
146
        if credentials['url'].rstrip('/') == url.rstrip('/'):
 
147
            return credentials
 
148
    else:
 
149
        return None
 
150
 
 
151
 
 
152
def parse_gitlab_url(url):
 
153
    (scheme, user, password, host, port, path) = urlutils.parse_url(
 
154
        url)
 
155
    if scheme not in ('git+ssh', 'https', 'http'):
 
156
        raise NotGitLabUrl(url)
 
157
    if not host:
 
158
        raise NotGitLabUrl(url)
 
159
    path = path.strip('/')
 
160
    if path.endswith('.git'):
 
161
        path = path[:-4]
 
162
    return host, path
 
163
 
 
164
 
 
165
def parse_gitlab_branch_url(branch):
 
166
    url = urlutils.strip_segment_parameters(branch.user_url)
 
167
    host, path = parse_gitlab_url(url)
 
168
    return host, path, branch.name
 
169
 
 
170
 
 
171
def parse_gitlab_merge_request_url(url):
 
172
    (scheme, user, password, host, port, path) = urlutils.parse_url(
 
173
        url)
 
174
    if scheme not in ('git+ssh', 'https', 'http'):
 
175
        raise NotGitLabUrl(url)
 
176
    if not host:
 
177
        raise NotGitLabUrl(url)
 
178
    path = path.strip('/')
 
179
    parts = path.split('/')
 
180
    if len(parts) < 2:
 
181
        raise NotMergeRequestUrl(host, url)
 
182
    if parts[-2] != 'merge_requests':
 
183
        raise NotMergeRequestUrl(host, url)
 
184
    if parts[-3] == '-':
 
185
        project_name = '/'.join(parts[:-3])
 
186
    else:
 
187
        project_name = '/'.join(parts[:-2])
 
188
    return host, project_name, int(parts[-1])
 
189
 
 
190
 
 
191
class GitLabMergeProposal(MergeProposal):
 
192
 
 
193
    def __init__(self, gl, mr):
 
194
        self.gl = gl
 
195
        self._mr = mr
 
196
 
 
197
    def _update(self, **kwargs):
 
198
        self.gl._update_merge_request(self._mr['project_id'], self._mr['iid'], kwargs)
 
199
 
 
200
    def __repr__(self):
 
201
        return "<%s at %r>" % (type(self).__name__, self._mr['web_url'])
 
202
 
 
203
    @property
 
204
    def url(self):
 
205
        return self._mr['web_url']
 
206
 
 
207
    def get_description(self):
 
208
        return self._mr['description']
 
209
 
 
210
    def set_description(self, description):
 
211
        self._update(description=description, title=determine_title(description))
 
212
 
 
213
    def get_commit_message(self):
 
214
        return self._mr.get('merge_commit_message')
 
215
 
 
216
    def set_commit_message(self, message):
 
217
        raise errors.UnsupportedOperation(self.set_commit_message, self)
 
218
 
 
219
    def _branch_url_from_project(self, project_id, branch_name):
 
220
        if project_id is None:
 
221
            return None
 
222
        project = self.gl._get_project(project_id)
 
223
        return gitlab_url_to_bzr_url(project['http_url_to_repo'], branch_name)
 
224
 
 
225
    def get_source_branch_url(self):
 
226
        return self._branch_url_from_project(
 
227
            self._mr['source_project_id'], self._mr['source_branch'])
 
228
 
 
229
    def get_source_revision(self):
 
230
        from breezy.git.mapping import default_mapping
 
231
        sha = self._mr['sha']
 
232
        if sha is None:
 
233
            return None
 
234
        return default_mapping.revision_id_foreign_to_bzr(sha.encode('ascii'))
 
235
 
 
236
    def get_target_branch_url(self):
 
237
        return self._branch_url_from_project(
 
238
            self._mr['target_project_id'], self._mr['target_branch'])
 
239
 
 
240
    def _get_project_name(self, project_id):
 
241
        source_project = self.gl._get_project(project_id)
 
242
        return source_project['path_with_namespace']
 
243
 
 
244
    def get_source_project(self):
 
245
        return self._get_project_name(self._mr['source_project_id'])
 
246
 
 
247
    def get_target_project(self):
 
248
        return self._get_project_name(self._mr['target_project_id'])
 
249
 
 
250
    def is_merged(self):
 
251
        return (self._mr['state'] == 'merged')
 
252
 
 
253
    def is_closed(self):
 
254
        return (self._mr['state'] == 'closed')
 
255
 
 
256
    def reopen(self):
 
257
        return self._update(state_event='reopen')
 
258
 
 
259
    def close(self):
 
260
        self._update(state_event='close')
 
261
 
 
262
    def merge(self, commit_message=None):
 
263
        # https://docs.gitlab.com/ee/api/merge_requests.html#accept-mr
 
264
        self._mr.merge(merge_commit_message=commit_message)
 
265
 
 
266
    def can_be_merged(self):
 
267
        if self._mr['merge_status'] == 'cannot_be_merged':
 
268
            return False
 
269
        elif self._mr['merge_status'] == 'can_be_merged':
 
270
            return True
 
271
        elif self._mr['merge_status'] in (
 
272
                'unchecked', 'cannot_be_merged_recheck'):
 
273
            # See https://gitlab.com/gitlab-org/gitlab/-/commit/7517105303c for
 
274
            # an explanation of the distinction between unchecked and
 
275
            # cannot_be_merged_recheck
 
276
            return None
 
277
        else:
 
278
            raise ValueError(self._mr['merge_status'])
 
279
 
 
280
    def get_merged_by(self):
 
281
        user = self._mr.get('merged_by')
 
282
        if user is None:
 
283
            return None
 
284
        return user['username']
 
285
 
 
286
    def get_merged_at(self):
 
287
        merged_at = self._mr.get('merged_at')
 
288
        if merged_at is None:
 
289
            return None
 
290
        import iso8601
 
291
        return iso8601.parse_date(merged_at)
 
292
 
 
293
    def post_comment(self, body):
 
294
        kwargs = {'body': body}
 
295
        self.gl._post_merge_request_note(
 
296
            self._mr['project_id'], self._mr['iid'], kwargs)
 
297
 
 
298
 
 
299
def gitlab_url_to_bzr_url(url, name):
 
300
    if not PY3:
 
301
        name = name.encode('utf-8')
 
302
    return git_url_to_bzr_url(url, branch=name)
 
303
 
 
304
 
 
305
class GitLab(Hoster):
 
306
    """GitLab hoster implementation."""
 
307
 
 
308
    supports_merge_proposal_labels = True
 
309
    supports_merge_proposal_commit_message = False
 
310
    supports_allow_collaboration = True
 
311
    merge_proposal_description_format = 'markdown'
 
312
 
 
313
    def __repr__(self):
 
314
        return "<GitLab(%r)>" % self.base_url
 
315
 
 
316
    @property
 
317
    def base_url(self):
 
318
        return self.transport.base
 
319
 
 
320
    @property
 
321
    def base_hostname(self):
 
322
        return urlutils.parse_url(self.base_url)[3]
 
323
 
 
324
    def _api_request(self, method, path, fields=None, body=None):
 
325
        return self.transport.request(
 
326
            method, urlutils.join(self.base_url, 'api', 'v4', path),
 
327
            headers=self.headers, fields=fields, body=body)
 
328
 
 
329
    def __init__(self, transport, private_token):
 
330
        self.transport = transport
 
331
        self.headers = {"Private-Token": private_token}
 
332
        self.check()
 
333
 
 
334
    def _get_user(self, username):
 
335
        path = 'users/%s' % urlutils.quote(str(username), '')
 
336
        response = self._api_request('GET', path)
 
337
        if response.status == 404:
 
338
            raise KeyError('no such user %s' % username)
 
339
        if response.status == 200:
 
340
            return json.loads(response.data)
 
341
        raise errors.UnexpectedHttpStatus(path, response.status)
 
342
 
 
343
    def _get_user_by_email(self, email):
 
344
        path = 'users?search=%s' % urlutils.quote(str(email), '')
 
345
        response = self._api_request('GET', path)
 
346
        if response.status == 404:
 
347
            raise KeyError('no such user %s' % email)
 
348
        if response.status == 200:
 
349
            ret = json.loads(response.data)
 
350
            if len(ret) != 1:
 
351
                raise ValueError('unexpected number of results; %r' % ret)
 
352
            return ret[0]
 
353
        raise errors.UnexpectedHttpStatus(path, response.status)
 
354
 
 
355
    def _get_project(self, project_name):
 
356
        path = 'projects/%s' % urlutils.quote(str(project_name), '')
 
357
        response = self._api_request('GET', path)
 
358
        if response.status == 404:
 
359
            raise NoSuchProject(project_name)
 
360
        if response.status == 200:
 
361
            return json.loads(response.data)
 
362
        raise errors.UnexpectedHttpStatus(path, response.status)
 
363
 
 
364
    def _fork_project(self, project_name, timeout=50, interval=5):
 
365
        path = 'projects/%s/fork' % urlutils.quote(str(project_name), '')
 
366
        response = self._api_request('POST', path)
 
367
        if response.status == 404:
 
368
            raise ForkingDisabled(project_name)
 
369
        if response.status not in (200, 201):
 
370
            raise errors.UnexpectedHttpStatus(path, response.status)
 
371
        # The response should be valid JSON, but let's ignore it
 
372
        project = json.loads(response.data)
 
373
        # Spin and wait until import_status for new project
 
374
        # is complete.
 
375
        deadline = time.time() + timeout
 
376
        while project['import_status'] not in ('finished', 'none'):
 
377
            mutter('import status is %s', project['import_status'])
 
378
            if time.time() > deadline:
 
379
                raise Exception('timeout waiting for project to become available')
 
380
            time.sleep(interval)
 
381
            project = self._get_project(project['path_with_namespace'])
 
382
        return project
 
383
 
 
384
    def _get_logged_in_username(self):
 
385
        return self._current_user['username']
 
386
 
 
387
    def _list_paged(self, path, parameters=None, per_page=None):
 
388
        if parameters is None:
 
389
            parameters = {}
 
390
        else:
 
391
            parameters = dict(parameters.items())
 
392
        if per_page:
 
393
            parameters['per_page'] = str(per_page)
 
394
        page = "1"
 
395
        while page:
 
396
            parameters['page'] = page
 
397
            response = self._api_request(
 
398
                'GET', path + '?' +
 
399
                ';'.join(['%s=%s' % item for item in parameters.items()]))
 
400
            if response.status == 403:
 
401
                raise errors.PermissionDenied(response.text)
 
402
            if response.status != 200:
 
403
                raise errors.UnexpectedHttpStatus(path, response.status)
 
404
            page = response.getheader("X-Next-Page")
 
405
            for entry in json.loads(response.data):
 
406
                yield entry
 
407
 
 
408
    def _list_merge_requests(self, owner=None, project=None, state=None):
 
409
        if project is not None:
 
410
            path = 'projects/%s/merge_requests' % urlutils.quote(str(project), '')
 
411
        else:
 
412
            path = 'merge_requests'
 
413
        parameters = {}
 
414
        if state:
 
415
            parameters['state'] = state
 
416
        if owner:
 
417
            parameters['owner_id'] = urlutils.quote(owner, '')
 
418
        return self._list_paged(path, parameters, per_page=DEFAULT_PAGE_SIZE)
 
419
 
 
420
    def _get_merge_request(self, project, merge_id):
 
421
        path = 'projects/%s/merge_requests/%d' % (urlutils.quote(str(project), ''), merge_id)
 
422
        response = self._api_request('GET', path)
 
423
        if response.status == 403:
 
424
            raise errors.PermissionDenied(response.text)
 
425
        if response.status != 200:
 
426
            raise errors.UnexpectedHttpStatus(path, response.status
 
427
        return json.loads(response.data)
 
428
 
 
429
    def _list_projects(self, owner):
 
430
        path = 'users/%s/projects' % urlutils.quote(str(owner), '')
 
431
        parameters = {}
 
432
        return self._list_paged(path, parameters, per_page=DEFAULT_PAGE_SIZE)
 
433
 
 
434
    def _update_merge_request(self, project_id, iid, mr):
 
435
        path = 'projects/%s/merge_requests/%s' % (
 
436
            urlutils.quote(str(project_id), ''), iid)
 
437
        response = self._api_request('PUT', path, fields=mr)
 
438
        if response.status == 200:
 
439
            return json.loads(response.data)
 
440
        raise errors.UnexpectedHttpStatus(path, response.status)
 
441
 
 
442
    def _post_merge_request_note(self, project_id, iid, kwargs):
 
443
        path = 'projects/%s/merge_requests/%s/notes' % (
 
444
            urlutils.quote(str(project_id), ''), iid)
 
445
        response = self._api_request('POST', path, fields=kwargs)
 
446
        if response.status == 201:
 
447
            json.loads(response.data)
 
448
            return
 
449
        raise errors.UnexpectedHttpStatus(path, response.status)
 
450
 
 
451
    def _create_mergerequest(
 
452
            self, title, source_project_id, target_project_id,
 
453
            source_branch_name, target_branch_name, description,
 
454
            labels=None, allow_collaboration=False):
 
455
        path = 'projects/%s/merge_requests' % source_project_id
 
456
        fields = {
 
457
            'title': title,
 
458
            'source_branch': source_branch_name,
 
459
            'target_branch': target_branch_name,
 
460
            'target_project_id': target_project_id,
 
461
            'description': description,
 
462
            'allow_collaboration': allow_collaboration,
 
463
            }
 
464
        if labels:
 
465
            fields['labels'] = labels
 
466
        response = self._api_request('POST', path, fields=fields)
 
467
        if response.status == 403:
 
468
            raise errors.PermissionDenied(response.text)
 
469
        if response.status == 409:
 
470
            raise MergeRequestExists()
 
471
        if response.status != 201:
 
472
            raise errors.UnexpectedHttpStatus(path, response.status)
 
473
        return json.loads(response.data)
 
474
 
 
475
    def get_push_url(self, branch):
 
476
        (host, project_name, branch_name) = parse_gitlab_branch_url(branch)
 
477
        project = self._get_project(project_name)
 
478
        return gitlab_url_to_bzr_url(
 
479
            project['ssh_url_to_repo'], branch_name)
 
480
 
 
481
    def publish_derived(self, local_branch, base_branch, name, project=None,
 
482
                        owner=None, revision_id=None, overwrite=False,
 
483
                        allow_lossy=True, tag_selector=None):
 
484
        (host, base_project, base_branch_name) = parse_gitlab_branch_url(base_branch)
 
485
        if owner is None:
 
486
            owner = self._get_logged_in_username()
 
487
        if project is None:
 
488
            project = self._get_project(base_project)['path']
 
489
        try:
 
490
            target_project = self._get_project('%s/%s' % (owner, project))
 
491
        except NoSuchProject:
 
492
            target_project = self._fork_project(base_project)
 
493
        remote_repo_url = git_url_to_bzr_url(target_project['ssh_url_to_repo'])
 
494
        remote_dir = controldir.ControlDir.open(remote_repo_url)
 
495
        try:
 
496
            push_result = remote_dir.push_branch(
 
497
                local_branch, revision_id=revision_id, overwrite=overwrite,
 
498
                name=name, tag_selector=tag_selector)
 
499
        except errors.NoRoundtrippingSupport:
 
500
            if not allow_lossy:
 
501
                raise
 
502
            push_result = remote_dir.push_branch(
 
503
                local_branch, revision_id=revision_id, overwrite=overwrite,
 
504
                name=name, lossy=True, tag_selector=tag_selector)
 
505
        public_url = gitlab_url_to_bzr_url(
 
506
            target_project['http_url_to_repo'], name)
 
507
        return push_result.target_branch, public_url
 
508
 
 
509
    def get_derived_branch(self, base_branch, name, project=None, owner=None):
 
510
        (host, base_project, base_branch_name) = parse_gitlab_branch_url(base_branch)
 
511
        if owner is None:
 
512
            owner = self._get_logged_in_username()
 
513
        if project is None:
 
514
            project = self._get_project(base_project)['path']
 
515
        try:
 
516
            target_project = self._get_project('%s/%s' % (owner, project))
 
517
        except NoSuchProject:
 
518
            raise errors.NotBranchError('%s/%s/%s' % (self.base_url, owner, project))
 
519
        return _mod_branch.Branch.open(gitlab_url_to_bzr_url(
 
520
            target_project['ssh_url_to_repo'], name))
 
521
 
 
522
    def get_proposer(self, source_branch, target_branch):
 
523
        return GitlabMergeProposalBuilder(self, source_branch, target_branch)
 
524
 
 
525
    def iter_proposals(self, source_branch, target_branch, status):
 
526
        (source_host, source_project_name, source_branch_name) = (
 
527
            parse_gitlab_branch_url(source_branch))
 
528
        (target_host, target_project_name, target_branch_name) = (
 
529
            parse_gitlab_branch_url(target_branch))
 
530
        if source_host != target_host:
 
531
            raise DifferentGitLabInstances(source_host, target_host)
 
532
        source_project = self._get_project(source_project_name)
 
533
        target_project = self._get_project(target_project_name)
 
534
        state = mp_status_to_status(status)
 
535
        for mr in self._list_merge_requests(
 
536
                project=target_project['id'], state=state):
 
537
            if (mr['source_project_id'] != source_project['id'] or
 
538
                    mr['source_branch'] != source_branch_name or
 
539
                    mr['target_project_id'] != target_project['id'] or
 
540
                    mr['target_branch'] != target_branch_name):
 
541
                continue
 
542
            yield GitLabMergeProposal(self, mr)
 
543
 
 
544
    def hosts(self, branch):
 
545
        try:
 
546
            (host, project, branch_name) = parse_gitlab_branch_url(branch)
 
547
        except NotGitLabUrl:
 
548
            return False
 
549
        return self.base_hostname == host
 
550
 
 
551
    def check(self):
 
552
        response = self._api_request('GET', 'user')
 
553
        if response.status == 200:
 
554
            self._current_user = json.loads(response.data)
 
555
            return
 
556
        if response == 401:
 
557
            if json.loads(response.data) == {"message": "401 Unauthorized"}:
 
558
                raise GitLabLoginMissing()
 
559
            else:
 
560
                raise GitlabLoginError(response.text)
 
561
        raise UnsupportedHoster(self.base_url)
 
562
 
 
563
    @classmethod
 
564
    def probe_from_url(cls, url, possible_transports=None):
 
565
        try:
 
566
            (host, project) = parse_gitlab_url(url)
 
567
        except NotGitLabUrl:
 
568
            raise UnsupportedHoster(url)
 
569
        transport = get_transport(
 
570
            'https://%s' % host, possible_transports=possible_transports)
 
571
        credentials = get_credentials_by_url(transport.base)
 
572
        if credentials is not None:
 
573
            return cls(transport, credentials.get('private_token'))
 
574
        raise UnsupportedHoster(url)
 
575
 
 
576
    @classmethod
 
577
    def iter_instances(cls):
 
578
        for name, credentials in iter_tokens():
 
579
            if 'url' not in credentials:
 
580
                continue
 
581
            yield cls(
 
582
                get_transport(credentials['url']),
 
583
                private_token=credentials.get('private_token'))
 
584
 
 
585
    def iter_my_proposals(self, status='open'):
 
586
        state = mp_status_to_status(status)
 
587
        for mp in self._list_merge_requests(
 
588
                owner=self._get_logged_in_username(), state=state):
 
589
            yield GitLabMergeProposal(self, mp)
 
590
 
 
591
    def iter_my_forks(self):
 
592
        for project in self._list_projects(owner=self._get_logged_in_username()):
 
593
            base_project = project.get('forked_from_project')
 
594
            if not base_project:
 
595
                continue
 
596
            yield project['path_with_namespace']
 
597
 
 
598
    def get_proposal_by_url(self, url):
 
599
        try:
 
600
            (host, project, merge_id) = parse_gitlab_merge_request_url(url)
 
601
        except NotGitLabUrl:
 
602
            raise UnsupportedHoster(url)
 
603
        except NotMergeRequestUrl as e:
 
604
            if self.base_hostname == e.host:
 
605
                raise
 
606
            else:
 
607
                raise UnsupportedHoster(url)
 
608
        if self.base_hostname != host:
 
609
            raise UnsupportedHoster(url)
 
610
        project = self._get_project(project)
 
611
        mr = self._get_merge_request(project['path_with_namespace'], merge_id)
 
612
        return GitLabMergeProposal(self, mr)
 
613
 
 
614
    def delete_project(self, project):
 
615
        path = 'projects/%s' % urlutils.quote(str(project), '')
 
616
        response = self._api_request('DELETE', path)
 
617
        if response.status == 404:
 
618
            raise NoSuchProject(project)
 
619
        if response.status != 202:
 
620
            raise errors.UnexpectedHttpStatus(path, response.status)
 
621
 
 
622
 
 
623
class GitlabMergeProposalBuilder(MergeProposalBuilder):
 
624
 
 
625
    def __init__(self, gl, source_branch, target_branch):
 
626
        self.gl = gl
 
627
        self.source_branch = source_branch
 
628
        (self.source_host, self.source_project_name, self.source_branch_name) = (
 
629
            parse_gitlab_branch_url(source_branch))
 
630
        self.target_branch = target_branch
 
631
        (self.target_host, self.target_project_name, self.target_branch_name) = (
 
632
            parse_gitlab_branch_url(target_branch))
 
633
        if self.source_host != self.target_host:
 
634
            raise DifferentGitLabInstances(self.source_host, self.target_host)
 
635
 
 
636
    def get_infotext(self):
 
637
        """Determine the initial comment for the merge proposal."""
 
638
        info = []
 
639
        info.append("Gitlab instance: %s\n" % self.target_host)
 
640
        info.append("Source: %s\n" % self.source_branch.user_url)
 
641
        info.append("Target: %s\n" % self.target_branch.user_url)
 
642
        return ''.join(info)
 
643
 
 
644
    def get_initial_body(self):
 
645
        """Get a body for the proposal for the user to modify.
 
646
 
 
647
        :return: a str or None.
 
648
        """
 
649
        return None
 
650
 
 
651
    def create_proposal(self, description, reviewers=None, labels=None,
 
652
                        prerequisite_branch=None, commit_message=None,
 
653
                        work_in_progress=False, allow_collaboration=False):
 
654
        """Perform the submission."""
 
655
        # https://docs.gitlab.com/ee/api/merge_requests.html#create-mr
 
656
        if prerequisite_branch is not None:
 
657
            raise PrerequisiteBranchUnsupported(self)
 
658
        # Note that commit_message is ignored, since Gitlab doesn't support it.
 
659
        source_project = self.gl._get_project(self.source_project_name)
 
660
        target_project = self.gl._get_project(self.target_project_name)
 
661
        # TODO(jelmer): Allow setting title explicitly
 
662
        title = determine_title(description)
 
663
        if work_in_progress:
 
664
            title = 'WIP: %s' % title
 
665
        # TODO(jelmer): Allow setting milestone field
 
666
        # TODO(jelmer): Allow setting squash field
 
667
        kwargs = {
 
668
            'title': title,
 
669
            'source_project_id': source_project['id'],
 
670
            'target_project_id': target_project['id'],
 
671
            'source_branch_name': self.source_branch_name,
 
672
            'target_branch_name': self.target_branch_name,
 
673
            'description': description,
 
674
            'allow_collaboration': allow_collaboration}
 
675
        if labels:
 
676
            kwargs['labels'] = ','.join(labels)
 
677
        if reviewers:
 
678
            kwargs['assignee_ids'] = []
 
679
            for reviewer in reviewers:
 
680
                if '@' in reviewer:
 
681
                    user = self.gl._get_user_by_email(reviewer)
 
682
                else:
 
683
                    user = self.gl._get_user(reviewer)
 
684
                kwargs['assignee_ids'].append(user['id'])
 
685
        try:
 
686
            merge_request = self.gl._create_mergerequest(**kwargs)
 
687
        except MergeRequestExists:
 
688
            raise MergeProposalExists(self.source_branch.user_url)
 
689
        return GitLabMergeProposal(self.gl, merge_request)
 
690
 
 
691
 
 
692
def register_gitlab_instance(shortname, url):
 
693
    """Register a gitlab instance.
 
694
 
 
695
    :param shortname: Short name (e.g. "gitlab")
 
696
    :param url: URL to the gitlab instance
 
697
    """
 
698
    from breezy.bugtracker import (
 
699
        tracker_registry,
 
700
        ProjectIntegerBugTracker,
 
701
        )
 
702
    tracker_registry.register(
 
703
        shortname, ProjectIntegerBugTracker(
 
704
            shortname, url + '/{project}/issues/{id}'))