[infra] Use Artifacts Output layout

[martincostello]

Relates to open-telemetry/opentelemetry-dotnet#6256.

Changes

Use Artifacts Output layout to make build output easy to locate.

This has the additional effect of de-nesting the structure of the ZIP files containing the packages that are uploaded to GitHub Actions artifacts.

Essentially a copy of open-telemetry/opentelemetry-dotnet#6301.

Merge requirement checklist

• CONTRIBUTING guidelines followed (license requirements, nullable enabled, static analysis, etc.)
• Unit tests added/updated
• Appropriate CHANGELOG.md files updated for non-trivial changes
• Changes in public API reviewed (if applicable)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.70%. Comparing base (71655ce) to head (fd6d107).
Report is 880 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2816      +/-   ##
==========================================
- Coverage   73.91%   69.70%   -4.21%     
==========================================
  Files         267      394     +127     
  Lines        9615    15978    +6363     
==========================================
+ Hits         7107    11138    +4031     
- Misses       2508     4840    +2332     

Flag	Coverage Δ
unittests-Contrib.Shared.Tests	86.06% <ø> (?)
unittests-Exporter.Geneva	53.47% <ø> (?)
unittests-Exporter.InfluxDB	95.14% <ø> (?)
unittests-Exporter.Instana	74.86% <ø> (?)
unittests-Exporter.OneCollector	94.61% <ø> (?)
unittests-Exporter.Stackdriver	79.26% <ø> (?)
unittests-Extensions	91.12% <ø> (?)
unittests-Extensions.Enrichment	100.00% <ø> (?)
unittests-Instrumentation.AWS	84.12% <ø> (?)
unittests-Instrumentation.AspNet	76.79% <ø> (?)
unittests-Instrumentation.AspNetCore	70.32% <ø> (?)
unittests-Instrumentation.ConfluentKafka	14.10% <ø> (?)
unittests-Instrumentation.ElasticsearchClient	80.12% <ø> (?)
unittests-Instrumentation.EntityFrameworkCore	57.06% <ø> (?)
unittests-Instrumentation.EventCounters	76.36% <ø> (?)
unittests-Instrumentation.GrpcCore	91.42% <ø> (?)
unittests-Instrumentation.GrpcNetClient	79.61% <ø> (?)
unittests-Instrumentation.Hangfire	93.58% <ø> (?)
unittests-Instrumentation.Http	74.09% <ø> (?)
unittests-Instrumentation.Owin	88.62% <ø> (?)
unittests-Instrumentation.Process	100.00% <ø> (?)
unittests-Instrumentation.Quartz	78.76% <ø> (?)
unittests-Instrumentation.Runtime	100.00% <ø> (?)
unittests-Instrumentation.ServiceFabricRemoting	34.54% <ø> (?)
unittests-Instrumentation.SqlClient	87.82% <ø> (?)
unittests-Instrumentation.StackExchangeRedis	70.92% <ø> (?)
unittests-Instrumentation.Wcf	78.61% <ø> (?)
unittests-PersistentStorage	65.88% <ø> (?)
unittests-Resources.AWS	75.00% <ø> (?)
unittests-Resources.Azure	84.56% <ø> (?)
unittests-Resources.Container	67.34% <ø> (?)
unittests-Resources.Gcp	71.42% <ø> (?)
unittests-Resources.Host	73.91% <ø> (?)
unittests-Resources.OperatingSystem	76.98% <ø> (?)
unittests-Resources.Process	100.00% <ø> (?)
unittests-Resources.ProcessRuntime	78.26% <ø> (?)
unittests-Sampler.AWS	88.25% <ø> (?)

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see 398 files with indirect coverage changes

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[Copilot]

Pull Request Overview

This PR implements the Artifacts Output layout to simplify locating build outputs and de-nest the structure of ZIP files for package uploads. Key changes include updating test projects to determine paths via assembly metadata, revising build and project files to use a consistent Import strategy, and modifying GitHub Actions workflows and scripts to reflect the new artifacts output structure.

Reviewed Changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
test/OpenTelemetry.Instrumentation.AspNetCore.Tests/RouteTests/TestApplication/TestApplicationFactory.cs	Uses AssemblyMetadataAttribute to resolve RouteTestsPath and update ContentRootPath accordingly.
test/OpenTelemetry.Instrumentation.AspNetCore.Tests/RouteTests/RoutingTestFixture.cs	Retrieves RouteTestsPath from assembly metadata and updates the README file generation logic.
test/OpenTelemetry.Instrumentation.AspNetCore.Tests/OpenTelemetry.Instrumentation.AspNetCore.Tests.csproj	Adds an AssemblyMetadata element for the RouteTestsPath.
test/Directory.Build.props, src/Directory.Build.props, examples/Directory.Build.props	Updates Import statements to utilize Path.Combine for more robust file referencing.
build/scripts/test-aot-compatibility.ps1	Adjusts the test app’s push-location to use the new artifacts publish path.
build/Common.prod.props	Removes the PackageOutputPath element to align with the Artifacts Output layout change.
Directory.Build.props (root)	Introduces properties for ArtifactsPath and the UseArtifactsOutput flag.
.github/workflows/publish-packages.yml, .github/workflows/Component.BuildTest.yml	Updates package paths and nuget push commands to reference the new artifacts layout.

Comments suppressed due to low confidence (4)

build/Common.prod.props:15

• The removal of the PackageOutputPath element alters the package output location. Please verify that this change aligns with the intended artifacts output layout and that downstream processes respect this new location.

<NoWarn>$(NoWarn);1573;1712</NoWarn>

build/scripts/test-aot-compatibility.ps1:29

• [nitpick] Consider adding or updating tests to verify that the updated artifacts output path is correctly generated and used during the AOT compatibility test.

Push-Location $rootDirectory/artifacts/publish/OpenTelemetry.AotCompatibility.TestApp/release_$targetNetFramework

.github/workflows/publish-packages.yml:89

• [nitpick] Confirm that the updated relative path for package artifacts works consistently across all targeted operating systems in the CI environment.

path: ./artifacts/package/release

.github/workflows/Component.BuildTest.yml:171

• [nitpick] Ensure that changing the artifact path in this workflow does not affect other build dependencies and is verified across different OS runners.

path: ./artifacts/package/release