Task Kinds
==========

This section lists and documents the available task kinds.

build
------

Builds are tasks that produce an installer or other output that can be run by
users or automated tests.  This is more restrictive than most definitions of
"build" in a Mozilla context: it does not include tasks that run build-like
actions for static analysis or to produce instrumented artifacts.

build-signing
--------------


artifact-build
--------------

This kind performs an artifact build: one based on precompiled binaries
discovered via the TaskCluster index.  This task verifies that such builds
continue to work correctly.

hazard
------

Hazard builds are similar to "regular' builds, but use a compiler extension to
extract a bunch of data from the build and then analyze that data looking for
hazardous behaviors.

l10n
----

The l10n kind takes the last published nightly build, and generates localized builds
from it. You can read more about how to trigger these on the `wiki
<https://wiki.mozilla.org/ReleaseEngineering/TryServer#Desktop_l10n_jobs_.28on_Taskcluster.29>`_.

nightly-l10n
------------

The nightly l10n kind repacks a specific nightly build (from the same source code)
in order to provide localized versions of the same source.

nightly-l10n-signing
--------------------

The nightly l10n signing kind takes artifacts from the nightly-l10n kind and
passes them to signing servers to have their contents signed appropriately, based
on an appropriate signing format. One signing job is created for each nightly-l10n
job (usually chunked).

source-test
------------

Source-tests are tasks that run directly from the Gecko source. This can include linting,
unit tests, source-code analysis, or measurement work. While source-test tasks run from
a source checkout, it is still possible for them to depend on a build artifact, though
often they do not.

upload-symbols
--------------

Upload-symbols tasks run after builds and upload the symbols files generated by
build tasks to Socorro for later use in crash analysis.

valgrind
--------

Valgrind tasks produce builds instrumented by valgrind.

static-analysis
---------------

Static analysis builds use the compiler to perform some detailed analysis of
the source code while building.  The useful output from these tasks are their
build logs, and while they produce a binary, they do not upload it as an
artifact.

toolchain
---------

Toolchain builds create the compiler toolchains used to build Firefox.  These
will eventually be dependencies of the builds themselves, but for the moment
are run manually via try pushes and the results uploaded to tooltool.

spidermonkey
------------

Spidermonkey tasks check out the full gecko source tree, then compile only the
spidermonkey portion.  Each task runs specific tests after the build.

Tests
-----

Test tasks for Gecko products are divided into several kinds, but share a
common implementation.  The process goes like this, based on a set of YAML
files named in ``kind.yml``:

 * For each build task, determine the related test platforms based on the build
   platform.  For example, a Windows 2010 build might be tested on Windows 7
   and Windows 10.  Each test platform specifies "test sets" indicating which
   tests to run.  This is configured in the file named
   ``test-platforms.yml``.

 * Each test set is expanded to a list of tests to run.  This is configured in
   the file named by ``test-sets.yml``. A platform may specify several test
   sets, in which case the union of those sets is used.

 * Each named test is looked up in the file named by ``tests.yml`` to find a
   test description.  This test description indicates what the test does, how
   it is reported to treeherder, and how to perform the test, all in a
   platform-independent fashion.

 * Each test description is converted into one or more tasks.  This is
   performed by a sequence of transforms defined in the ``transforms`` key in
   ``kind.yml``.  See :doc:`transforms`: for more information on these
   transforms.

 * The resulting tasks become a part of the task graph.

.. important::

    This process generates *all* test jobs, regardless of tree or try syntax.
    It is up to a later stage of the task-graph generation (the target set) to
    select the tests that will actually be performed.

test
....

The ``desktop-test`` kind defines tests for builds.  Its ``tests.yml`` defines
the full suite of desktop tests and their particulars, leaving it to the
transforms to determine how those particulars apply to the various platforms.

This kind includes both unit tests and talos.

docker-image
------------

Tasks of the ``docker-image`` kind build the Docker images in which other
Docker tasks run.

The tasks to generate each docker image have predictable labels:
``build-docker-image-<name>``.

Docker images are built from subdirectories of ``taskcluster/docker``, using
``docker build``.  There is currently no capability for one Docker image to
depend on another in-tree docker image, without uploading the latter to a
Docker repository

The task definition used to create the image-building tasks is given in
``image.yml`` in the kind directory, and is interpreted as a :doc:`YAML
Template <yaml-templates>`.

android-stuff
--------------

balrog
------

Balrog is the Mozilla Update Server. Jobs of this kind are submitting information
which assists in telling Firefox that an update is available for the related job.

balrog-l10n
-----------

Balrog is the Mozilla Update Server. Jobs of this kind are submitting information
which assists in telling Firefox that an update is available for the localized
job involved.

beetmover
---------

Beetmover, takes specific artifacts, "Beets", and pushes them to a location outside
of Taskcluster's task artifacts, (archive.mozilla.org as one place) and in the
process determines the final location and a "pretty" name (versioned product name)

beetmover-l10n
--------------

Beetmover L10n, takes specific artifacts, "Beets", and pushes them to a location outside
of Taskcluster's task artifacts, (archive.mozilla.org as one place) and in the
process determines the final location and a "pretty" name (versioned product name)
This separate kind uses logic specific to localized artifacts, such as including
the language in the final artifact names.

checksums-signing
----------------
Checksums-signing take as input the checksums file generated by beetmover tasks
and sign it via the signing scriptworkers. Returns the same file signed and
additional detached signature.

beetmover-checksums
-------------------
Beetmover, takes specific artifact checksums and pushes it to a location outside
of Taskcluster's task artifacts (archive.mozilla.org as one place) and in the
process determines the final location and "pretty" names it (version product name)

push-apk-breakpoint
-------------------
Decides whether or not APKs should be published onto Google Play Store. Jobs of this
kind depend on all the signed multi-locales (aka "multi") APKs for a given release,
in order to make the decision.

push-apk
--------
PushApk publishes Android packages onto Google Play Store. Jobs of this kind take
all the signed multi-locales (aka "multi") APKs for a given release and upload them
all at once. They also depend on the breakpoint.
