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Viewing changes to bzrlib/plugins/launchpad/lp_api.py

  • Committer: Robert Collins
  • Date: 2010-05-06 23:41:35 UTC
  • mto: This revision was merged to the branch mainline in revision 5223.
  • Revision ID: robertc@robertcollins.net-20100506234135-yivbzczw1sejxnxc
Lock methods on ``Tree``, ``Branch`` and ``Repository`` are now
expected to return an object which can be used to unlock them. This reduces
duplicate code when using cleanups. The previous 'tokens's returned by
``Branch.lock_write`` and ``Repository.lock_write`` are now attributes
on the result of the lock_write. ``repository.RepositoryWriteLockResult``
and ``branch.BranchWriteLockResult`` document this. (Robert Collins)

``log._get_info_for_log_files`` now takes an add_cleanup callable.
(Robert Collins)

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bzrlib/plugins/launchpad/lp_api.py
1
 
# Copyright (C) 2009-2012 Canonical Ltd
 
1
# Copyright (C) 2009, 2010 Canonical Ltd
2
2
#
3
3
# This program is free software; you can redistribute it and/or modify
4
4
# it under the terms of the GNU General Public License as published by
16
16
 
17
17
"""Tools for dealing with the Launchpad API."""
18
18
 
19
 
from __future__ import absolute_import
20
 
 
21
19
# Importing this module will be expensive, since it imports launchpadlib and
22
20
# its dependencies. However, our plan is to only load this module when it is
23
21
# needed by a command that uses it.
24
22
 
25
23
 
 
24
import os
26
25
import re
27
 
try:
28
 
    from urllib.parse import (
29
 
        urlparse,
30
 
        urlunparse,
31
 
        )
32
 
except ImportError:  # python < 3
33
 
    from urlparse import (
34
 
        urlparse,
35
 
        urlunparse,
36
 
        )
37
26
 
38
 
from ... import (
 
27
from bzrlib import (
39
28
    branch,
40
 
    bedding,
 
29
    config,
41
30
    errors,
42
31
    osutils,
43
32
    trace,
44
33
    transport,
45
34
    )
46
 
from ...i18n import gettext
47
 
 
48
 
 
49
 
class LaunchpadlibMissing(errors.DependencyNotPresent):
50
 
 
51
 
    _fmt = ("launchpadlib is required for Launchpad API access. "
52
 
            "Please install the launchpadlib package.")
53
 
 
54
 
    def __init__(self, e):
55
 
        super(LaunchpadlibMissing, self).__init__(
56
 
            'launchpadlib', e)
 
35
from bzrlib.plugins.launchpad.lp_registration import (
 
36
    InvalidLaunchpadInstance,
 
37
    NotLaunchpadBranch,
 
38
    )
57
39
 
58
40
try:
59
41
    import launchpadlib
60
 
except ImportError as e:
61
 
    raise LaunchpadlibMissing(e)
 
42
except ImportError, e:
 
43
    raise errors.DependencyNotPresent('launchpadlib', e)
62
44
 
63
45
from launchpadlib.launchpad import (
 
46
    EDGE_SERVICE_ROOT,
 
47
    STAGING_SERVICE_ROOT,
64
48
    Launchpad,
65
49
    )
66
 
from launchpadlib import uris
 
50
 
67
51
 
68
52
# Declare the minimum version of launchpadlib that we need in order to work.
69
 
MINIMUM_LAUNCHPADLIB_VERSION = (1, 6, 3)
 
53
# 1.5.1 is the version of launchpadlib packaged in Ubuntu 9.10, the most
 
54
# recent Ubuntu release at the time of writing.
 
55
MINIMUM_LAUNCHPADLIB_VERSION = (1, 5, 1)
70
56
 
71
57
 
72
58
def get_cache_directory():
73
59
    """Return the directory to cache launchpadlib objects in."""
74
 
    return osutils.pathjoin(bedding.cache_dir(), 'launchpad')
 
60
    return osutils.pathjoin(config.config_dir(), 'launchpad')
75
61
 
76
62
 
77
63
def parse_launchpadlib_version(version_number):
83
69
    """Raise an error if launchpadlib has the wrong version number."""
84
70
    installed_version = parse_launchpadlib_version(launchpadlib.__version__)
85
71
    if installed_version < MINIMUM_LAUNCHPADLIB_VERSION:
86
 
        raise errors.DependencyNotPresent(
87
 
            'launchpadlib',
88
 
            'At least launchpadlib %s is required, but installed version is %s'
89
 
            % (MINIMUM_LAUNCHPADLIB_VERSION, installed_version))
90
 
 
91
 
 
92
 
def lookup_service_root(service_root):
 
72
        raise errors.IncompatibleAPI(
 
73
            'launchpadlib', MINIMUM_LAUNCHPADLIB_VERSION,
 
74
            installed_version, installed_version)
 
75
 
 
76
 
 
77
LAUNCHPAD_API_URLS = {
 
78
    'production': 'https://api.launchpad.net/beta/',
 
79
    'edge': EDGE_SERVICE_ROOT,
 
80
    'staging': STAGING_SERVICE_ROOT,
 
81
    'dev': 'https://api.launchpad.dev/beta/',
 
82
    }
 
83
 
 
84
 
 
85
def _get_api_url(service):
 
86
    """Return the root URL of the Launchpad API.
 
87
 
 
88
    e.g. For the 'edge' Launchpad service, this function returns
 
89
    launchpadlib.launchpad.EDGE_SERVICE_ROOT.
 
90
 
 
91
    :param service: A `LaunchpadService` object.
 
92
    :return: A URL as a string.
 
93
    """
 
94
    if service._lp_instance is None:
 
95
        lp_instance = service.DEFAULT_INSTANCE
 
96
    else:
 
97
        lp_instance = service._lp_instance
93
98
    try:
94
 
        return uris.lookup_service_root(service_root)
95
 
    except ValueError:
96
 
        if service_root != 'qastaging':
97
 
            raise
98
 
        staging_root = uris.lookup_service_root('staging')
99
 
        return staging_root.replace('staging', 'qastaging')
100
 
 
101
 
 
102
 
class NoLaunchpadBranch(errors.BzrError):
103
 
    _fmt = 'No launchpad branch could be found for branch "%(url)s".'
104
 
 
105
 
    def __init__(self, branch):
106
 
        errors.BzrError.__init__(self, branch=branch, url=branch.base)
107
 
 
108
 
 
109
 
def connect_launchpad(base_url, timeout=None, proxy_info=None,
110
 
                      version=Launchpad.DEFAULT_VERSION):
 
99
        return LAUNCHPAD_API_URLS[lp_instance]
 
100
    except KeyError:
 
101
        raise InvalidLaunchpadInstance(lp_instance)
 
102
 
 
103
 
 
104
def login(service, timeout=None, proxy_info=None):
111
105
    """Log in to the Launchpad API.
112
106
 
113
107
    :return: The root `Launchpad` object from launchpadlib.
114
108
    """
115
 
    if proxy_info is None:
116
 
        import httplib2
117
 
        proxy_info = httplib2.proxy_info_from_environment('https')
118
 
    try:
119
 
        cache_directory = get_cache_directory()
120
 
    except EnvironmentError:
121
 
        cache_directory = None
122
 
    return Launchpad.login_with(
123
 
        'breezy', base_url, cache_directory, timeout=timeout,
124
 
        proxy_info=proxy_info, version=version)
125
 
 
 
109
    cache_directory = get_cache_directory()
 
110
    launchpad = Launchpad.login_with(
 
111
        'bzr', _get_api_url(service), cache_directory, timeout=timeout,
 
112
        proxy_info=proxy_info)
 
113
    # XXX: Work-around a minor security bug in launchpadlib 1.5.1, which would
 
114
    # create this directory with default umask.
 
115
    os.chmod(cache_directory, 0700)
 
116
    return launchpad
126
117
 
127
118
 
128
119
class LaunchpadBranch(object):
166
157
            return False
167
158
        if url.startswith('lp:'):
168
159
            return True
169
 
        regex = re.compile('([a-z]*\\+)*(bzr\\+ssh|http)'
 
160
        regex = re.compile('([a-z]*\+)*(bzr\+ssh|http)'
170
161
                           '://bazaar.*.launchpad.net')
171
162
        return bool(regex.match(url))
172
163
 
183
174
        url = bzr_branch.get_push_location()
184
175
        if url is not None:
185
176
            yield url
186
 
        url = bzr_branch.get_parent()
187
 
        if url is not None:
188
 
            yield url
189
177
        yield bzr_branch.base
190
178
 
191
179
    @staticmethod
192
180
    def tweak_url(url, launchpad):
193
181
        """Adjust a URL to work with staging, if needed."""
194
 
        if str(launchpad._root_uri) == uris.STAGING_SERVICE_ROOT:
195
 
            return url.replace('bazaar.launchpad.net',
196
 
                               'bazaar.staging.launchpad.net')
197
 
        elif str(launchpad._root_uri) == lookup_service_root('qastaging'):
198
 
            return url.replace('bazaar.launchpad.net',
199
 
                               'bazaar.qastaging.launchpad.net')
200
 
        return url
 
182
        if str(launchpad._root_uri) != STAGING_SERVICE_ROOT:
 
183
            return url
 
184
        if url is None:
 
185
            return None
 
186
        return url.replace('bazaar.launchpad.net',
 
187
                           'bazaar.staging.launchpad.net')
201
188
 
202
189
    @classmethod
203
 
    def from_bzr(cls, launchpad, bzr_branch, create_missing=True):
 
190
    def from_bzr(cls, launchpad, bzr_branch):
204
191
        """Find a Launchpad branch from a bzr branch."""
205
192
        check_update = True
206
193
        for url in cls.candidate_urls(bzr_branch):
211
198
            if lp_branch is not None:
212
199
                break
213
200
        else:
214
 
            if not create_missing:
215
 
                raise NoLaunchpadBranch(bzr_branch)
216
201
            lp_branch = cls.create_now(launchpad, bzr_branch)
217
202
            check_update = False
218
203
        return cls(lp_branch, bzr_branch.base, bzr_branch, check_update)
222
207
        """Create a Bazaar branch on Launchpad for the supplied branch."""
223
208
        url = cls.tweak_url(bzr_branch.get_push_location(), launchpad)
224
209
        if not cls.plausible_launchpad_url(url):
225
 
            raise errors.BzrError(gettext('%s is not registered on Launchpad') %
 
210
            raise errors.BzrError('%s is not registered on Launchpad' %
226
211
                                  bzr_branch.base)
227
212
        bzr_branch.create_clone_on_transport(transport.get_transport(url))
228
213
        lp_branch = launchpad.branches.getByUrl(url=url)
229
214
        if lp_branch is None:
230
 
            raise errors.BzrError(gettext('%s is not registered on Launchpad') %
231
 
                                  url)
 
215
            raise errors.BzrError('%s is not registered on Launchpad' % url)
232
216
        return lp_branch
233
217
 
234
 
    def get_target(self):
235
 
        """Return the 'LaunchpadBranch' for the target of this one."""
 
218
    def get_dev_focus(self):
 
219
        """Return the 'LaunchpadBranch' for the dev focus of this one."""
236
220
        lp_branch = self.lp
237
 
        if lp_branch.project is not None:
238
 
            dev_focus = lp_branch.project.development_focus
239
 
            if dev_focus is None:
240
 
                raise errors.BzrError(gettext('%s has no development focus.') %
241
 
                                      lp_branch.bzr_identity)
242
 
            target = dev_focus.branch
243
 
            if target is None:
244
 
                raise errors.BzrError(gettext(
245
 
                    'development focus %s has no branch.') % dev_focus)
246
 
        elif lp_branch.sourcepackage is not None:
247
 
            target = lp_branch.sourcepackage.getBranch(pocket="Release")
248
 
            if target is None:
249
 
                raise errors.BzrError(gettext(
250
 
                                      'source package %s has no branch.') %
251
 
                                      lp_branch.sourcepackage)
252
 
        else:
253
 
            raise errors.BzrError(gettext(
254
 
                '%s has no associated product or source package.') %
255
 
                lp_branch.bzr_identity)
256
 
        return LaunchpadBranch(target, target.bzr_identity)
 
221
        if lp_branch.project is None:
 
222
            raise errors.BzrError('%s has no product.' %
 
223
                                  lp_branch.bzr_identity)
 
224
        dev_focus = lp_branch.project.development_focus.branch
 
225
        if dev_focus is None:
 
226
            raise errors.BzrError('%s has no development focus.' %
 
227
                                  lp_branch.bzr_identity)
 
228
        return LaunchpadBranch(dev_focus, dev_focus.bzr_identity)
257
229
 
258
230
    def update_lp(self):
259
231
        """Update the Launchpad copy of this branch."""
260
232
        if not self._check_update:
261
233
            return
262
 
        with self.bzr.lock_read():
 
234
        self.bzr.lock_read()
 
235
        try:
263
236
            if self.lp.last_scanned_id is not None:
264
237
                if self.bzr.last_revision() == self.lp.last_scanned_id:
265
 
                    trace.note(gettext('%s is already up-to-date.') %
 
238
                    trace.note('%s is already up-to-date.' %
266
239
                               self.lp.bzr_identity)
267
240
                    return
268
241
                graph = self.bzr.repository.get_graph()
269
 
                if not graph.is_ancestor(osutils.safe_utf8(self.lp.last_scanned_id),
 
242
                if not graph.is_ancestor(self.lp.last_scanned_id,
270
243
                                         self.bzr.last_revision()):
271
244
                    raise errors.DivergedBranches(self.bzr, self.push_bzr)
272
 
                trace.note(gettext('Pushing to %s') % self.lp.bzr_identity)
 
245
                trace.note('Pushing to %s' % self.lp.bzr_identity)
273
246
            self.bzr.push(self.push_bzr)
 
247
        finally:
 
248
            self.bzr.unlock()
274
249
 
275
250
    def find_lca_tree(self, other):
276
251
        """Find the revision tree for the LCA of this branch and other.
284
259
        return self.bzr.repository.revision_tree(lca)
285
260
 
286
261
 
287
 
def canonical_url(object):
288
 
    """Return the canonical URL for a branch."""
289
 
    scheme, netloc, path, params, query, fragment = urlparse(
290
 
        str(object.self_link))
291
 
    path = '/'.join(path.split('/')[2:])
292
 
    netloc = netloc.replace('api.', 'code.')
293
 
    return urlunparse((scheme, netloc, path, params, query, fragment))
 
262
def load_branch(launchpad, branch):
 
263
    """Return the launchpadlib Branch object corresponding to 'branch'.
 
264
 
 
265
    :param launchpad: The root `Launchpad` object from launchpadlib.
 
266
    :param branch: A `bzrlib.branch.Branch`.
 
267
    :raise NotLaunchpadBranch: If we cannot determine the Launchpad URL of
 
268
        `branch`.
 
269
    :return: A launchpadlib Branch object.
 
270
    """
 
271
    # XXX: This duplicates the "What are possible URLs for the branch that
 
272
    # Launchpad might recognize" logic found in cmd_lp_open.
 
273
 
 
274
    # XXX: This makes multiple roundtrips to Launchpad for what is
 
275
    # conceptually a single operation -- get me the branches that match these
 
276
    # URLs. Unfortunately, Launchpad's support for such operations is poor, so
 
277
    # we have to allow multiple roundtrips.
 
278
    for url in branch.get_public_branch(), branch.get_push_location():
 
279
        lp_branch = launchpad.branches.getByUrl(url=url)
 
280
        if lp_branch:
 
281
            return lp_branch
 
282
    raise NotLaunchpadBranch(url)