1776514 - Configure select background tasks to enable Nimbus experiments and Firefox Messaging System (and Messaging Experiments)

Status: RESOLVED FIXED

(Toolkit :: Background Tasks, enhancement, P2)

Description

[Nick Alexander :nalexander [he/him]]

This is "the work" for Bug 1764603 and Bug 1775133.

Comment 1

[Nick Alexander :nalexander [he/him]]

Attachment: Bug 1776514 - Allow background tasks to enable Nimbus and Firefox Messaging System. r?barret!,bytesized!

This commit does several things:

1. It configures a new Nimbus feature and corresponding message group
   backgroundTaskMessage.

2. It configures a new background-task-message Firefox Messaging
   System provider specific to background tasks. It is a
   remote-settings provider that uses a new bucket
   background-task-message, and that uses RemoteL10n.

3. It configures Firefox Messaging Experiments to use a new
   nimbus-desktop-background-task-experiments Remote Settings
   collection, sibling to the existing nimbus-desktop-experiments
   collection.

These configurations are achieved by setting preferences in
backgroundtasks.js, which is applied on top of firefox.js prefs by
the preference service. These preferences apply to every background
task.

4. It implements functions for enabling Nimbus and the Firefox
   Messaging System (and Messaging Experiments) that can be used by
   arbitrary background tasks.

   It is assumed (but not enforced here) that such tasks will use
   non-ephemeral (persistent) profiles, so that Remote Settings
   incremental sync, Nimbus bucketing, and Messaging System message
   limits, function as expected.

5. It adds a new message background task specifically for testing
   background task messages. Invoke the testing task with command
   lines like firefox --backgroundtask message ....

   To ease testing, the framework accepts --url about:studies?...
   arguments from the Experimenter Web UI to explicitly opt-in to
   specific experiment branches.

Eventually the existing backgroundupdate task will use the new
functions, just as the testing message task does.

Depends on D150217

Comment 2

[Nick Alexander :nalexander [he/him]]

Attachment: WIP: Bug 1776514 - DO NOT LAND - Use Remote Settings stage server to test Nimbus and Messaging Experiments.

There is a single nalexander-ms-test1 experiment defined: see

https://stage.experimenter.nonprod.dataops.mozgcp.net/nimbus/nalexander-ms-test1

Because of the way that Nimbus/Experimenter publishes previews, the
collection needs to be overridden to be nimbus-preview. This is
what happens for regular Desktop experiment previews as well.

That single experiment should be fetched, complete enrollment, and pop
a toast notification. The title string of the toast notification
shows the treatment group, A or B, and the body string of the toast
notification uses RemoteL10n or is an in-product string, respectively.

Depends on D150522

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/b083e38b2ed9
Allow background tasks to enable Nimbus and Firefox Messaging System. r=barret,bytesized

Comment 4

[Pulsebot]

Backout by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/2174465e1488
Backed out changeset b083e38b2ed9 for causing failure at browser_all_files_referenced.js. CLOSED TREE

Comment 5

[Atila Butkovits]

Backed out for causing failure at browser_all_files_referenced.js.

Backout link: https://hg.mozilla.org/integration/autoland/rev/2174465e14880c21e5fa0e63aacd7bd1eff5fe5a

Push with failures: https://treeherder.mozilla.org/jobs?repo=autoland&resultStatus=testfailed%2Cbusted%2Cexception%2Cretry%2Cusercancel&revision=b083e38b2ed99fdf84633044fadce15f9f57df1c&selectedTaskRun=BeihqY4ARwqKes4Sy_bDpA.0

Failure log: https://treeherder.mozilla.org/logviewer?job_id=385062798&repo=autoland&lineNumber=2705

Comment 6

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/e6ad35220e23
Allow background tasks to enable Nimbus and Firefox Messaging System. r=barret,bytesized

Comment 7

[Atila Butkovits]

Backed out for causing failures at browser_all_files_referenced.js.

Backout link: https://hg.mozilla.org/integration/autoland/rev/359e12a89f139443d66898e2e15f798e9d557f93

Push with failures: https://treeherder.mozilla.org/jobs?repo=autoland&selectedTaskRun=EDCCpExZQXys8M3OVvFfMQ.0&resultStatus=testfailed%2Cbusted%2Cexception%2Cretry%2Cusercancel&revision=e6ad35220e23391dc511a363f023be8caa61d513

Failure log: https://treeherder.mozilla.org/logviewer?job_id=385084308&repo=autoland&lineNumber=2625

Comment 8

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/e5280f629025
Allow background tasks to enable Nimbus and Firefox Messaging System. r=barret,bytesized

Comment 9

[Iulian Moraru]

https://hg.mozilla.org/mozilla-central/rev/e5280f629025

Comment 10

[Nick Alexander :nalexander [he/him]]

Clearing NI since this has been addressed.