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ExternalBugTracker: Issuezilla and other Freaks
===============================================
Bugzilla has a few variants out there in the wild, and we work hard to
support them all.
Issuezilla
----------
We support Issuezilla-style trackers. These trackers are essentially
modified (ancient) versions of Bugzilla; their XML elements have
slightly different names, and they lack the severity field. We pretend
Mozilla's Bugzilla is an Issuezilla instance here:
>>> from lp.bugs.interfaces.bugtracker import IBugTrackerSet
>>> from lp.testing.layers import LaunchpadZopelessLayer
>>> from lp.bugs.scripts.checkwatches import CheckwatchesMaster
>>> from lp.bugs.tests.externalbugtracker import TestIssuezilla
>>> txn = LaunchpadZopelessLayer.txn
>>> mozilla_bugzilla = getUtility(IBugTrackerSet).getByName('mozilla.org')
>>> issuezilla = TestIssuezilla(mozilla_bugzilla.baseurl)
>>> issuezilla._probe_version()
(2, 11)
>>> for bug_watch in mozilla_bugzilla.watches:
... print "%s: %s %s" % (bug_watch.remotebug,
... bug_watch.remotestatus, bug_watch.remote_importance)
2000:
123543:
42: FUBAR BAZBAZ
42: FUBAR BAZBAZ
>>> transaction.commit()
>>> bug_watch_updater = CheckwatchesMaster(txn)
>>> bug_watch_updater.updateBugWatches(
... issuezilla, mozilla_bugzilla.watches)
INFO:...:Updating 4 watches for 3 bugs on https://bugzilla.mozilla.org
INFO:...:Didn't find bug u'42' on https://bugzilla.mozilla.org
(local bugs: 1, 2).
>>> for bug_watch in mozilla_bugzilla.watches:
... print "%s: %s %s" % (bug_watch.remotebug,
... bug_watch.remotestatus, bug_watch.remote_importance)
2000: RESOLVED FIXED LOW
123543: ASSIGNED HIGH
42: FUBAR BAZBAZ
42: FUBAR BAZBAZ
Bugzilla prior to 2.11
----------------------
Old-style Bugzillas are quite similar to Issuezilla. Again we pretend
Mozilla.org's using this old version. Here's the scoop:
>>> from lp.bugs.tests.externalbugtracker import TestOldBugzilla
>>> old_bugzilla = TestOldBugzilla(mozilla_bugzilla.baseurl)
a) The version is way old:
>>> old_bugzilla._probe_version()
(2, 10)
b) The tags are not prefixed with the bz: namespace:
>>> bug_item_file = old_bugzilla._readBugItemFile()
>>> "<bug_status>" in bug_item_file
True
>>> "<bug_id>" in bug_item_file
True
We support them just fine:
>>> remote_bugs = ['42', '123543']
>>> old_bugzilla.initializeRemoteBugDB(remote_bugs)
>>> for remote_bug in remote_bugs:
... print "%s: %s %s" % (
... remote_bug,
... old_bugzilla.getRemoteStatus(remote_bug),
... old_bugzilla.getRemoteImportance(remote_bug))
42: RESOLVED FIXED LOW BLOCKER
123543: ASSIGNED HIGH BLOCKER
Bugzilla oddities
-----------------
Some Bugzillas have some weird properties that we need to cater for:
>>> from lp.bugs.tests.externalbugtracker import (
... TestWeirdBugzilla)
>>> weird_bugzilla = TestWeirdBugzilla(mozilla_bugzilla.baseurl)
>>> weird_bugzilla._probe_version()
(2, 20)
a) The bug status tag is <bz:status> and not <bz:bug_status>
>>> bug_item_file = weird_bugzilla._readBugItemFile()
>>> "<bz:status>" in bug_item_file
True
b) The content is non-ascii:
>>> bug_item_file.decode("ascii")
Traceback (most recent call last):
...
UnicodeDecodeError: 'ascii' codec can't decode byte...
Yet everything still works as expected:
>>> remote_bugs = ['2000', '123543']
>>> weird_bugzilla.initializeRemoteBugDB(remote_bugs)
>>> for remote_bug in remote_bugs:
... print "%s: %s %s" % (
... remote_bug,
... weird_bugzilla.getRemoteStatus(remote_bug),
... weird_bugzilla.getRemoteImportance(remote_bug))
2000: ASSIGNED HIGH BLOCKER
123543: RESOLVED FIXED HIGH BLOCKER
Broken Bugzillas
----------------
What does /not/ work as expected is parsing Bugzillas which produce
invalid XML:
>>> from lp.bugs.tests.externalbugtracker import (
... TestBrokenBugzilla)
>>> broken_bugzilla = TestBrokenBugzilla(mozilla_bugzilla.baseurl)
>>> broken_bugzilla._probe_version()
(2, 20)
>>> "</foobar>" in broken_bugzilla._readBugItemFile()
True
>>> remote_bugs = ['42', '2000']
>>> broken_bugzilla.initializeRemoteBugDB(remote_bugs)
Traceback (most recent call last):
...
UnparsableBugData: Failed to parse XML description...
However, embedded control characters do not generate errors.
>>> from lp.bugs.tests.externalbugtracker import (
... AnotherBrokenBugzilla)
>>> broken_bugzilla = AnotherBrokenBugzilla(mozilla_bugzilla.baseurl)
>>> r"NOT\x01USED" in repr(broken_bugzilla._readBugItemFile())
True
>>> remote_bugs = ['42', '2000']
>>> broken_bugzilla.initializeRemoteBugDB(remote_bugs) # no exception
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