[jjonescz]

Validation: https://dev.azure.com/dnceng/internal/_build/results?buildId=3044826&view=results

(Ignore the intermediate commits, they contain some experiments; this should be squashed on merge.)

Microsoft Reviewers: Open in CodeFlow

[Copilot]

Pull request overview

This PR adjusts the Azure Pipelines configuration to fix/unstick the source indexing stage by reusing the repository’s restore/build steps in a shared template and wiring those steps into the source-index job.

Changes:

• Introduces a reusable RestoreAndBuild.yml pipeline template encapsulating Node setup, restore, solution generation, and build.
• Refactors BuildAndTest.yml to consume the new restore/build template instead of duplicating those steps.
• Updates azure-pipelines.yml to drive source indexing via a parameterized condition and to run restore/build as preSteps for the source-index job.

Reviewed changes

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

File	Description
eng/pipelines/templates/RestoreAndBuild.yml	New shared restore/build step template used by build/test and source-index preSteps.
eng/pipelines/templates/BuildAndTest.yml	Switches restore/build steps to use the shared template.
azure-pipelines.yml	Updates source index configuration (condition, build script variable, and preSteps using the shared template).

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[jjonescz]

@dotnet/dotnet-extensions-infra PTAL; this fixes official builds of this repo which have been broken for some time

[adamsitnik]

this fixes official builds of this repo which have been broken for some time

Since I am about to perform a release (attempt), I am going to merge this PR. Thank you for fixing the build @jjonescz !