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Bugzilla Import
===============
The bugzilla import process makes use of a direct connection to the
database. In order to aid in testing, all the database accesses are
performed through a single class that can be replaced.
We will start by defining a fake backend and some fake information for
it to return:
>>> from datetime import datetime
>>> import pytz
>>> UTC = pytz.timezone('UTC')
>>> users = [
... ('test@canonical.com', 'Sample User'),
... ('foo.bar@canonical.com', 'Foo Bar'),
... ('new.user@canonical.com', 'New User') # <- not in Launchpad
... ]
>>> buginfo = [
... (1, # bug_id
... 1, # assigned_to
... '', # bug_file_loc
... 'normal', # bug_severity
... 'NEW', # status
... datetime(2005, 4, 1, tzinfo=UTC), # creation
... 'Test bug 1', # short_desc,
... 'Linux', # op_sys
... 'P2', # priority
... 'Ubuntu', # product
... 'AMD64', # rep_platform
... 1, # reporter
... '---', # version
... 'mozilla-firefox', # component
... '', # resolution
... 'Ubuntu 5.10', # milestone
... 0, # qa_contact
... 'status', # status_whiteboard
... '', # keywords
... ''), # alias
... # A WONTFIX bug on a non-existant distro package
... (2, 1, 'http://www.ubuntu.com', 'enhancement', 'RESOLVED',
... datetime(2005, 4, 2, tzinfo=UTC), 'Test bug 2',
... 'Linux', 'P1', 'Ubuntu', 'i386', 2, '---', 'unknown',
... 'WONTFIX', '---', 0, '', '', ''),
... # An accepted bug:
... (3, 2, 'http://www.ubuntu.com', 'blocker', 'ASSIGNED',
... datetime(2005, 4, 3, tzinfo=UTC), 'Test bug 3',
... 'Linux', 'P1', 'Ubuntu', 'i386', 1, '---', 'netapplet',
... '', '---', 0, '', '', 'xyz'),
... # A fixed bug
... (4, 1, 'http://www.ubuntu.com', 'blocker', 'CLOSED',
... datetime(2005, 4, 4, tzinfo=UTC), 'Test bug 4',
... 'Linux', 'P1', 'Ubuntu', 'i386', 1, '---', 'mozilla-firefox',
... 'FIXED', '---', 0, '', '', 'FooBar'),
... # An UPSTREAM bug
... (5, 1,
... 'http://bugzilla.gnome.org/bugs/show_bug.cgi?id=273041',
... 'blocker', 'UPSTREAM',
... datetime(2005, 4, 4, tzinfo=UTC), 'Test bug 5',
... 'Linux', 'P1', 'Ubuntu', 'i386', 1, '---', 'evolution',
... '', '---', 0, '', '', 'deb1234'),
... ]
>>> ccs = [[], [3], [], [], []]
>>> comments = [
... [(1, datetime(2005, 4, 1, tzinfo=UTC), 'First comment'),
... (2, datetime(2005, 4, 1, 1, tzinfo=UTC), 'Second comment')],
... [(1, datetime(2005, 4, 2, tzinfo=UTC), 'First comment'),
... (2, datetime(2005, 4, 2, 1, tzinfo=UTC), 'Second comment')],
... [(2, datetime(2005, 4, 3, tzinfo=UTC), 'First comment'),
... (1, datetime(2005, 4, 3, 1, tzinfo=UTC),
... 'This is related to CVE-2005-1234'),
... (2, datetime(2005, 4, 3, 2, tzinfo=UTC),
... 'Created an attachment (id=1)')],
... [(1, datetime(2005, 4, 4, tzinfo=UTC), 'First comment')],
... [(1, datetime(2005, 4, 5, tzinfo=UTC), 'First comment')],
... ]
>>> attachments = [
... [], [],
... [(1, datetime(2005, 4, 3, 2, tzinfo=UTC), 'An attachment',
... 'text/x-patch', True, 'foo.patch', 'the data', 2)],
... [], []
... ]
>>> duplicates = [
... (1, 2),
... (3, 4),
... ]
>>> class FakeBackend:
... def lookupUser(self, user_id):
... return users[user_id - 1]
... def getBugInfo(self, bug_id):
... return buginfo[bug_id - 1]
... def getBugCcs(self, bug_id):
... return ccs[bug_id - 1]
... def getBugComments(self, bug_id):
... return comments[bug_id - 1]
... def getBugAttachments(self, bug_id):
... return attachments[bug_id - 1]
... def getDuplicates(self):
... return duplicates
>>> from itertools import chain
>>> from zope.component import getUtility
>>> from canonical.launchpad.ftests import login
>>> from lp.app.interfaces.launchpad import ILaunchpadCelebrities
>>> from lp.bugs.interfaces.bug import IBugSet
>>> from lp.bugs.scripts import bugzilla
>>> from lp.registry.interfaces.person import IPersonSet
Get a reference to the Ubuntu bug tracker, and log in:
>>> login('bug-importer@launchpad.net')
>>> bugtracker = getUtility(ILaunchpadCelebrities).ubuntu_bugzilla
Now we create a bugzilla.Bugzilla instance to handle the import, using
our fake backend data:
>>> bz = bugzilla.Bugzilla(None)
>>> bz.backend = FakeBackend()
In order to verify that things get imported correctly, the following
function will be used:
>>> def bugInfo(bug):
... print 'Title:', bug.title
... print 'Reporter:', bug.owner.displayname
... print 'Created:', bug.datecreated
... if bug.name:
... print 'Nick: %s' % bug.name
... print 'Subscribers:'
... subscriber_names = sorted(
... p.displayname for p in chain(
... bug.getDirectSubscribers(),
... bug.getIndirectSubscribers()))
... for subscriber_name in subscriber_names:
... print ' %s' % subscriber_name
... for task in bug.bugtasks:
... print 'Task:', task.bugtargetdisplayname
... print ' Status:', task.status.name
... if task.product:
... print ' Product:', task.product.name
... if task.distribution:
... print ' Distro:', task.distribution.name
... if task.sourcepackagename:
... print ' Source package:', task.sourcepackagename.name
... if task.assignee:
... print ' Assignee:', task.assignee.displayname
... if task.importance:
... print ' Importance:', task.importance.name
... if task.statusexplanation:
... print ' Explanation:', task.statusexplanation
... if task.milestone:
... print ' Milestone:', task.milestone.name
... if task.bugwatch:
... print ' Watch:', task.bugwatch.url
... if bug.cves:
... print 'CVEs:'
... for cve in bug.cves:
... print ' %s' % cve.displayname
... print 'Messages:'
... for message in bug.messages:
... print ' Author:', message.owner.displayname
... print ' Date:', message.datecreated
... print ' Subject:', message.subject
... print ' %s' % message.text_contents
... print
... if bug.attachments.any():
... print 'Attachments:'
... for attachment in bug.attachments:
... print ' Title:', attachment.title
... print ' Type:', attachment.type.name
... print ' Name:', attachment.libraryfile.filename
... print ' Mime type:', attachment.libraryfile.mimetype
Now we import bug #1 and check the results:
>>> bug = bz.handleBug(1)
>>> bugInfo(bug)
Title: Test bug 1
Reporter: Sample Person
Created: 2005-04-01 00:00:00+00:00
Subscribers:
Foo Bar
Sample Person
Ubuntu Team
Task: mozilla-firefox (Ubuntu)
Status: NEW
Distro: ubuntu
Source package: mozilla-firefox
Assignee: Sample Person
Importance: MEDIUM
Explanation: status (Bugzilla status=NEW, product=Ubuntu,
component=mozilla-firefox)
Milestone: ubuntu-5.10
Messages:
Author: Sample Person
Date: 2005-04-01 00:00:00+00:00
Subject: Test bug 1
First comment
<BLANKLINE>
Author: Foo Bar
Date: 2005-04-01 01:00:00+00:00
Subject: Re: Test bug 1
Second comment
<BLANKLINE>
As well as importing the bug, a bug watch is created, linking the new
Launchpad bug to the original Bugzilla bug:
>>> linked_bug = getUtility(IBugSet).queryByRemoteBug(bugtracker, 1)
>>> linked_bug == bug
True
This bug watch link is used to prevent multiple imports of the same
bug.
>>> second_import = bz.handleBug(1)
>>> bug == second_import
True
Next we try bug #2, which is assigned to a non-existant source
package, so gets filed directly against the distribution. Some things
to notice:
* A Launchpad account is created for new.user@canonical.com as a side
effect of the import, because they are subscribed to the bug.
* The "RESOLVED WONTFIX" status is converted to a status of INVALID.
* The fact that the "unknown" package does not exist in Ubuntu has
been logged, along with the exception raised by
guessPublishedSourcePackageName().
>>> print getUtility(IPersonSet).getByEmail('new.user@canonical.com')
None
>>> bug = bz.handleBug(2)
WARNING:lp.bugs.scripts.bugzilla:could not find package name for
"unknown": 'Unknown package: unknown'
>>> import transaction
>>> transaction.commit()
>>> bugInfo(bug)
Title: Test bug 2
Reporter: Foo Bar
Created: 2005-04-02 00:00:00+00:00
Subscribers:
Foo Bar
New User
Sample Person
Ubuntu Team
Task: Ubuntu
Status: INVALID
Distro: ubuntu
Assignee: Sample Person
Importance: WISHLIST
Explanation: Bugzilla status=RESOLVED WONTFIX, product=Ubuntu,
component=unknown
Messages:
Author: Sample Person
Date: 2005-04-02 00:00:00+00:00
Subject: Test bug 2
First comment
<BLANKLINE>
http://www.ubuntu.com
<BLANKLINE>
Author: Foo Bar
Date: 2005-04-02 01:00:00+00:00
Subject: Re: Test bug 2
Second comment
<BLANKLINE>
>>> getUtility(IPersonSet).getByEmail('new.user@canonical.com')
<Person at ...>
Now import an ASSIGNED bug. Things to note about this import:
* the second comment mentions a CVE, causing a link between the bug
and CVE to be established.
* The attachment on this bug is imported
>>> bug = bz.handleBug(3)
>>> bugInfo(bug)
Title: Test bug 3
Reporter: Sample Person
Created: 2005-04-03 00:00:00+00:00
Nick: xyz
Subscribers:
Foo Bar
Sample Person
Ubuntu Team
Task: netapplet (Ubuntu)
Status: CONFIRMED
Distro: ubuntu
Source package: netapplet
Assignee: Foo Bar
Importance: CRITICAL
Explanation: Bugzilla status=ASSIGNED, product=Ubuntu,
component=netapplet
CVEs:
CVE-2005-1234
Messages:
Author: Foo Bar
Date: 2005-04-03 00:00:00+00:00
Subject: Test bug 3
First comment
<BLANKLINE>
http://www.ubuntu.com
<BLANKLINE>
Author: Sample Person
Date: 2005-04-03 01:00:00+00:00
Subject: Re: Test bug 3
This is related to CVE-2005-1234
<BLANKLINE>
Author: Foo Bar
Date: 2005-04-03 02:00:00+00:00
Subject: Re: Test bug 3
Created an attachment (id=1)
<BLANKLINE>
Attachments:
Title: An attachment
Type: PATCH
Name: foo.patch
Mime type: text/plain
Next we import a fixed bug:
>>> bug = bz.handleBug(4)
>>> bugInfo(bug)
Title: Test bug 4
Reporter: Sample Person
Created: 2005-04-04 00:00:00+00:00
Nick: foobar
Subscribers:
Foo Bar
Sample Person
Ubuntu Team
Task: mozilla-firefox (Ubuntu)
Status: FIXRELEASED
Distro: ubuntu
Source package: mozilla-firefox
Assignee: Sample Person
Importance: CRITICAL
Explanation: Bugzilla status=CLOSED FIXED, product=Ubuntu,
component=mozilla-firefox
Messages:
Author: Sample Person
Date: 2005-04-04 00:00:00+00:00
Subject: Test bug 4
First comment
<BLANKLINE>
http://www.ubuntu.com
<BLANKLINE>
The Ubuntu bugzilla uses the UPSTREAM state to categorise bugs that
have been forwarded on to the upstream developers. Usually the
upstream bug tracker URL is included in the URL field of the bug.
The Malone equivalent of this is to create a second task on the bug,
and attach a watch to the upstream bug tracker:
# Make sane data to play this test.
>>> from zope.component import getUtility
>>> from lp.registry.interfaces.distribution import IDistributionSet
>>> debian = getUtility(IDistributionSet).getByName('debian')
>>> evolution_dsp = debian.getSourcePackage('evolution')
>>> ignore = factory.makeSourcePackagePublishingHistory(
... distroseries=debian.currentseries,
... sourcepackagename=evolution_dsp.sourcepackagename)
>>> transaction.commit()
>>> bug = bz.handleBug(5)
>>> bugInfo(bug)
Title: Test bug 5
Reporter: Sample Person
Created: 2005-04-04 00:00:00+00:00
Subscribers:
Sample Person
Ubuntu Team
Task: Evolution
Status: NEW
Product: evolution
Importance: UNDECIDED
Watch: http://bugzilla.gnome.org/bugs/show_bug.cgi?id=273041
Task: evolution (Ubuntu)
Status: NEW
Distro: ubuntu
Source package: evolution
Assignee: Sample Person
Importance: CRITICAL
Explanation: Bugzilla status=UPSTREAM, product=Ubuntu,
component=evolution
Task: evolution (Debian)
Status: NEW
Distro: debian
Source package: evolution
Importance: UNDECIDED
Watch: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1234
Messages:
Author: Sample Person
Date: 2005-04-05 00:00:00+00:00
Subject: Test bug 5
First comment
<BLANKLINE>
http://bugzilla.gnome.org/bugs/show_bug.cgi?id=273041
<BLANKLINE>
XXX mpt 20060404: In sampledata Evolution uses Malone officially, so adding
a watch to its external bug tracker is a bad example.
Severity Mapping
----------------
Bugzilla severities are mapped to the equivalent Launchpad importance values:
>>> bug = bugzilla.Bug(bz.backend, 1)
>>> class FakeBugTask:
... def transitionToStatus(self, status, user):
... self.status = status
... def transitionToImportance(self, importance, user):
... self.importance = importance
>>> bugtask = FakeBugTask()
>>> for severity in ['blocker', 'critical', 'major', 'normal',
... 'minor', 'trivial', 'enhancement']:
... bug.bug_severity = severity
... bug.mapSeverity(bugtask)
... print '%-11s %s' % (severity, bugtask.importance.name)
blocker CRITICAL
critical CRITICAL
major HIGH
normal MEDIUM
minor LOW
trivial LOW
enhancement WISHLIST
Status Mapping
--------------
>>> for status in ['UNCONFIRMED', 'NEW', 'ASSIGNED', 'REOPENED',
... 'NEEDINFO', 'UPSTREAM', 'PENDINGUPLOAD',
... 'RESOLVED', 'VERIFIED', 'CLOSED']:
... bug.bug_status = status
... bugtask.statusexplanation = ''
... bug.mapStatus(bugtask)
... print '%-13s %s' % (status, bugtask.status.name)
UNCONFIRMED NEW
NEW NEW
ASSIGNED CONFIRMED
REOPENED NEW
NEEDINFO INCOMPLETE
UPSTREAM NEW
PENDINGUPLOAD FIXCOMMITTED
RESOLVED INVALID
VERIFIED INVALID
CLOSED INVALID
(note that RESOLVED, VERIFIED and CLOSED have been mapped to INVALID
here because the Bugzilla resolution is set to WONTFIX).
If the bug has been resolved, the resolution will affect the status:
>>> bug.priority = 'P2'
>>> bug.bug_status = 'RESOLVED'
>>> for resolution in ['FIXED', 'INVALID', 'WONTFIX', 'NOTABUG',
... 'NOTWARTY', 'UNIVERSE', 'LATER', 'REMIND',
... 'DUPLICATE', 'WORKSFORME', 'MOVED']:
... bug.resolution = resolution
... bugtask.statusexplanation = ''
... bug.mapStatus(bugtask)
... print '%-10s %s' % (resolution, bugtask.status.name)
FIXED FIXRELEASED
INVALID INVALID
WONTFIX INVALID
NOTABUG INVALID
NOTWARTY INVALID
UNIVERSE INVALID
LATER INVALID
REMIND INVALID
DUPLICATE INVALID
WORKSFORME INVALID
MOVED INVALID
Bug Target Mapping
------------------
The Bugzilla.getLaunchpadTarget() method is used to map bugzilla bugs
to Launchpad bug targets. This is not general purpose logic: it only
applies to the Ubuntu bugzilla.
The current mapping only handles bugs filed under the "Ubuntu"
product. If the component the bug is filed under is a known package
name, the bug is targeted at that package in ubuntu. If it isn't,
then the bug is filed directly against the distribution.
>>> def showMapping(product, component):
... bug.product = product
... bug.component = component
... target = bz.getLaunchpadBugTarget(bug)
... distribution = target.get('distribution')
... if distribution:
... print 'Distribution:', distribution.name
... spn = target.get('sourcepackagename')
... if spn:
... print 'Source package:', spn.name
... product = target.get('product')
... if product:
... print 'Product:', product.name
>>> showMapping('Ubuntu', 'mozilla-firefox')
Distribution: ubuntu
Source package: mozilla-firefox
>>> showMapping('Ubuntu', 'netapplet')
Distribution: ubuntu
Source package: netapplet
>>> showMapping('Ubuntu', 'unknown-package-name')
WARNING:lp.bugs.scripts.bugzilla:could not find package name for
"unknown-package-name": 'Unknown package: unknown-package-name'
Distribution: ubuntu
>>> showMapping('not-Ubuntu', 'general')
Traceback (most recent call last):
...
AssertionError: product must be Ubuntu
Duplicate Bug Handling
----------------------
The Bugzilla duplicate bugs table can be used to mark the
corresponding Launchpad bugs as duplicates too:
>>> from lp.testing.faketransaction import FakeTransaction
>>> bz.processDuplicates(FakeTransaction())
Now check that the bugs have been marked duplicate:
>>> bug1 = getUtility(IBugSet).queryByRemoteBug(bugtracker, 1)
>>> bug2 = getUtility(IBugSet).queryByRemoteBug(bugtracker, 2)
>>> bug3 = getUtility(IBugSet).queryByRemoteBug(bugtracker, 3)
>>> bug4 = getUtility(IBugSet).queryByRemoteBug(bugtracker, 4)
>>> print bug1.duplicateof
None
>>> bug2.duplicateof == bug1
True
>>> bug3.duplicateof == None
True
>>> bug4.duplicateof == bug3
True
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