Split x64/arm64 builds into parallel pipeline stages by benhillis · Pull Request #14497 · microsoft/WSL

benhillis · 2026-03-21T04:57:49Z

Restructure the CI/CD pipeline to build x64 and arm64 in parallel instead of sequentially, reducing end-to-end build time.

Pipeline shapes

PR: build_x64 ∥ build_arm64 → test (tests use installer.msix directly)
Nightly: build_x64 ∥ build_arm64 → package → test (dev-cert signed bundle)
Release: build_x64 ∥ build_arm64 → package → test (ESRP-signed bundle)

Key changes

Extract shared build-job.yml template parameterized by platform
Add package-stage.yml that creates msixbundle from both platform artifacts, ESRP-signs for release, dev-cert signs for nightly
PR tests run immediately after x64 build using installer.msix (no package stage, no bundle needed)
Release/nightly tests wait for the package stage and test the real signed bundle that gets published
CloudTest configs are parameterized: release tests pull the bundle from the [package] artifact, PR tests use installer.msix from [drop]
arm64 + formatting checks always run in parallel with x64 but don't block the PR test gate
CodeQL runs in the arm64 stage (off the critical path)
flight-stage and nuget-stage updated for new stage names

Copilot

Pull request overview

This PR restructures the Azure Pipelines build flow to run x64 and arm64 builds in parallel so test execution can start as soon as the x64 build finishes, while packaging waits for both architectures.

Changes:

Split the monolithic build stage into parallel build_x64 and build_arm64 stages, and update test dependencies to only wait for build_x64.
Introduce a new package stage to produce the msixbundle/appxupload and NuGet artifacts after both builds complete.
Update CloudTest setup to install and test using the x64 MSI instead of the combined msixbundle.

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
tools/test/test-setup.ps1	Adds MSI install/uninstall support alongside existing MSIX setup logic for tests.
cloudtest/TestGroup.xml.in	Switches CloudTest inputs from msixbundle to x64 MSI.
.pipelines/build-stage.yml	Splits build into parallel x64/arm64 stages and updates artifact outputs.
.pipelines/package-stage.yml	New packaging stage to bundle outputs from both builds and create NuGet/appxupload artifacts.
.pipelines/test-stage.yml	Makes tests depend only on `build_x64`.
.pipelines/flight-stage.yml	Updates flight stage dependencies and artifact source to the new package stage.
.pipelines/nuget-stage.yml	Updates NuGet publish stage to depend on/package artifacts from the new package stage.
.pipelines/wsl-build-pr.yml	Wires the new package stage into the PR pipeline.
.pipelines/wsl-build-pr-onebranch.yml	Wires the new package stage into the OneBranch PR pipeline.
.pipelines/wsl-build-nightly-onebranch.yml	Wires the new package stage into the nightly OneBranch pipeline.
.pipelines/wsl-build-release-onebranch.yml	Wires the new package stage into the release OneBranch pipeline.

Copilot

Pull request overview

Copilot reviewed 9 out of 9 changed files in this pull request and generated 2 comments.

Comments suppressed due to low confidence (1)

.pipelines/build-stage.yml:60

In the new checks stage, the first job is declared as - job: without an identifier. Azure Pipelines requires each job to have a name (e.g., job: checks) and this will fail YAML compilation as-is.

    jobs:
      - job:

        displayName: "Formatting & localization checks"
        timeoutInMinutes: 30

Copilot

Pull request overview

Copilot reviewed 9 out of 9 changed files in this pull request and generated 1 comment.

Copilot

Pull request overview

Copilot reviewed 9 out of 9 changed files in this pull request and generated 5 comments.

Copilot

Pull request overview

Copilot reviewed 8 out of 8 changed files in this pull request and generated 5 comments.

Copilot

Pull request overview

Copilot reviewed 8 out of 8 changed files in this pull request and generated 1 comment.

Copilot

Pull request overview

Copilot reviewed 8 out of 8 changed files in this pull request and generated 2 comments.

Copilot

Pull request overview

Copilot reviewed 11 out of 11 changed files in this pull request and generated 2 comments.

Copilot

Pull request overview

Copilot reviewed 11 out of 11 changed files in this pull request and generated 1 comment.

OneBlue

LGTM, minor comments

Copilot

Pull request overview

Copilot reviewed 13 out of 13 changed files in this pull request and generated 3 comments.

benhillis · 2026-04-08T15:34:46Z

@OneBlue This is ready for another look when you get a chance — I've addressed your earlier feedback. Thanks!

OneBlue

LGTM. Minor comments

Copilot

Pull request overview

Copilot reviewed 13 out of 13 changed files in this pull request and generated 3 comments.

Restructure the CI/CD pipeline to build x64 and arm64 in parallel instead of sequentially, reducing end-to-end build time. Pipeline shapes: - PR: build_x64 ∥ build_arm64 → test (uses installer.msix directly) - Nightly: build_x64 ∥ build_arm64 → package → test (dev-cert bundle) - Release: build_x64 ∥ build_arm64 → package → test (ESRP-signed bundle) Key changes: - Extract shared build-job.yml template parameterized by platform - Add package-stage.yml that creates msixbundle from both platform artifacts, ESRP-signs for release, dev-cert signs for nightly - PR tests run immediately after x64 build using installer.msix (no package stage, no bundle needed) - Release/nightly tests wait for the package stage and test the real signed bundle that gets published - CloudTest configs are parameterized: release tests pull the bundle from the [package] artifact, PR tests use installer.msix from [drop] - arm64 + formatting checks always run in parallel with x64 but don't block the PR test gate - CodeQL runs in the arm64 stage (off the critical path) - flight-stage and nuget-stage updated for new stage names

These tasks are already wrapped in compile-time conditionals which prevent them from being added to the pipeline definition for non-release builds. The runtime condition checks can never evaluate to false at that point, so they are pure noise. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

- Remove wslcsdk NuGet staging (wslc is not in master) - Always include [package] provider in TestMap.xml.in instead of conditionally injecting via PACKAGE_PROVIDER_BLOCK cmake variable. PR builds simply use [drop] as TEST_PACKAGE_PROVIDER; the [package] provider exists but is unused. - Add BUNDLE_ONLY cmake option so the package pipeline stage reuses cmake's existing bundle target instead of forking makeappx logic. This locks the SDK version via cmake (CMAKE_SYSTEM_VERSION) and keeps bundle creation logic in one place (msixinstaller/CMakeLists.txt). The pipeline now copies msix files to expected paths, runs a fast cmake configure with -DBUNDLE_ONLY=TRUE, and builds the bundle target. - Remove dead NuGet binary restore step in package stage. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

- Fix PACKAGE_VERSION regex: escape dots so only A.B.C.D is accepted - Consolidate CMake defaults (build type, config types, output dir) before BUNDLE_ONLY block to avoid duplication - Nightly tests now use the full bundle from the package stage instead of installer.msix (new INCLUDE_PACKAGE_STAGE cmake variable) - Package stage reuses version output from build stage instead of recomputing it Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

OneBlue

LGTM, one minor comment

benhillis requested a review from a team as a code owner March 21, 2026 04:57

benhillis requested review from Brian-Perkins, OneBlue, Copilot, jstarks and justus-camp-microsoft March 21, 2026 04:57

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benhillis force-pushed the user/benhill/split_pipeline branch 2 times, most recently from 3f8148b to ee56eac Compare March 21, 2026 20:25

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benhillis marked this pull request as draft March 23, 2026 18:06

benhillis force-pushed the user/benhill/split_pipeline branch from 168b58b to 83741bf Compare March 23, 2026 20:17

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benhillis force-pushed the user/benhill/split_pipeline branch from 081385e to 45e246b Compare March 31, 2026 17:05

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benhillis marked this pull request as ready for review March 31, 2026 19:35

benhillis force-pushed the user/benhill/split_pipeline branch from 44e026c to bc7c330 Compare March 31, 2026 19:37

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benhillis dismissed OneBlue’s stale review via 75d5df1 April 6, 2026 23:35

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Ben Hillis and others added 5 commits April 9, 2026 10:08

formatting

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benhillis commented Mar 21, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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benhillis commented Mar 21, 2026 •

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