Launchpad Bugs Components

The Launchpad bugs app is often called "malone" which is the old project name on Launchpad.

Users provide XML file of data exported from their bug tracker
Always user initiated
We have a couple tools to help generate a file in the format we expect
- list tools here
Users should ensure their XML file validates
Imports require [X] staging test runs, users to confirm data, then production run
See https://help.launchpad.net/Bugs/ImportFormat for more info

./cronscripts/checkwatches.py does all the work
Referred to as just "checkwatches"
single threaded and blocking, but can be run multi-threaded
DB load caused us to fall back to single thread, but this performs well now as is
LP stats that help track this:
Plugins are used for Trac and Bugzilla < 3.4, Bugzilla 3.4 and later can sync with us
Page scraping and other ugliness exists for other trackers
Watches sync status/importance and can sync comments if enabled

./cronscripts/expire-bugtasks.py
Runs daily via cron
Currently running just for Ubuntu due to backlog, but should be updated to run for all now

./cronscripts/send-bug-notifications.py
Most mail is sent offline
Subscribing notifications happen in web app
- Thought there was something else in app but cannot confirm now
This script does not run in cron for staging/qastaging, so QA requires LOSA to run this for you

Under heavy active development, handed off to Yellow Squad
Two types of subscriptions
- Direct subscriptions to individual bugs
- Structural subscriptions to bug targets (product, project, distribution, etc.)
Duplicate subscriptions are really just direct subscriptions to a bug looked up via a method
Several methods build the complete view of subscribers
- Look at all the IBug.get*Subscribers methods or IBug.getSubscription* methods

referred to as "hwdb," "hardware db," and in code lp.hardwaredb
./cronscripts/process-hwdb-submissions.py
checkbox runs on user's computer, submissions are uploaded to us, and this script processes those submissions to import the data
Only a few people using this for stats gathering
HWDB not exposed at all in web UI, only through API
Nothing being actively done with this

Duplicate search runs here
Duplicate search is configurable, so not everyone has to use it noe
Duplicate search rewritten to perform better but not as "catch all" so sometimes users will ask or comment about this

It is not always clear who can change status and opinion with the various roles we have
Look at the various IBugTask.userCan* methods to work out
Please for the love of all that is holy and good about bug tracking do not add more statuses

Has yet to be moved into the lp code base
Lives at lib/canonical/launchpad/mail, interesting bits at canonical.launchpad.mail.commands

launchpad development