Replace SettingsMigrator tool with a Copilot skill and remove all code#15537
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nohwnd wants to merge 2 commits intomicrosoft:mainfrom
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Replace SettingsMigrator tool with a Copilot skill and remove all code#15537nohwnd wants to merge 2 commits intomicrosoft:mainfrom
nohwnd wants to merge 2 commits intomicrosoft:mainfrom
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The SettingsMigrator.exe tool converts legacy .testsettings files to .runsettings format. This replaces it with a Copilot skill that documents the complete migration process step-by-step, usable both by AI agents and humans following manual steps. Changes: - New .github/skills/settings-migration/SKILL.md with complete migration guide including XML mapping rules, examples, and edge cases - Removed src/SettingsMigrator/ (source, resources, 14 localization files) - Removed test/SettingsMigrator.UnitTests/ (16 unit tests, test data) - Removed from TestPlatform.sln, Microsoft.TestPlatform.nuspec, Microsoft.TestPlatform.csproj, V2.CLI.csproj, verify-nupkgs.ps1 Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Pull request overview
This PR deprecates and removes the existing SettingsMigrator .NET tool (and its unit tests/localization assets) and replaces it with a Copilot “skill” document that describes the .testsettings → .runsettings migration steps.
Changes:
- Added a migration skill document that captures the XML node/attribute mapping rules and examples.
- Removed the SettingsMigrator tool project, resources (including localization), and unit tests.
- Removed SettingsMigrator packaging/build references (nuspec, csproj, solution, and nupkg verification).
Reviewed changes
Copilot reviewed 37 out of 38 changed files in this pull request and generated 3 comments.
Show a summary per file
| File | Description |
|---|---|
| .github/skills/settings-migration/SKILL.md | Adds the documented migration procedure intended to replace the removed executable tool. |
| TestPlatform.sln | Removes SettingsMigrator and its unit test projects from the solution. |
| eng/verify-nupkgs.ps1 | Stops expecting SettingsMigrator.exe in produced NuGet packages. |
| src/package/Microsoft.TestPlatform/Microsoft.TestPlatform.csproj | Drops the project reference to SettingsMigrator from packaging build. |
| src/package/Microsoft.TestPlatform/Microsoft.TestPlatform.nuspec | Removes SettingsMigrator binaries/resources from the packaged output. |
| src/package/Microsoft.VisualStudio.TestTools.TestPlatform.V2.CLI/Microsoft.VisualStudio.TestTools.TestPlatform.V2.CLI.csproj | Removes Vsix/source and project references related to SettingsMigrator. |
| src/SettingsMigrator/Migrator.cs | Removes the XML migration implementation (tool is decommissioned). |
| src/SettingsMigrator/PathResolver.cs | Removes CLI path resolution logic (tool is decommissioned). |
| src/SettingsMigrator/Program.cs | Removes the CLI entry point (tool is decommissioned). |
| src/SettingsMigrator/NullableHelpers.cs | Removes tool-specific generated nullable helpers. |
| src/SettingsMigrator/NullableHelpers.tt | Removes the tool’s T4 template used to generate nullable helpers. |
| src/SettingsMigrator/PublicAPI/PublicAPI.Shipped.txt | Removes public API tracking for the deleted tool assembly. |
| src/SettingsMigrator/PublicAPI/PublicAPI.Unshipped.txt | Removes unshipped API tracking for the deleted tool assembly. |
| src/SettingsMigrator/Resources/Resources.resx | Removes tool command-line/localized strings resources. |
| src/SettingsMigrator/Resources/xlf/Resources.xlf | Removes the XLIFF source file for localization. |
| src/SettingsMigrator/Resources/xlf/Resources.cs.xlf | Removes Czech localization for the tool. |
| src/SettingsMigrator/Resources/xlf/Resources.de.xlf | Removes German localization for the tool. |
| src/SettingsMigrator/Resources/xlf/Resources.es.xlf | Removes Spanish localization for the tool. |
| src/SettingsMigrator/Resources/xlf/Resources.fr.xlf | Removes French localization for the tool. |
| src/SettingsMigrator/Resources/xlf/Resources.it.xlf | Removes Italian localization for the tool. |
| src/SettingsMigrator/Resources/xlf/Resources.ja.xlf | Removes Japanese localization for the tool. |
| src/SettingsMigrator/Resources/xlf/Resources.ko.xlf | Removes Korean localization for the tool. |
| src/SettingsMigrator/Resources/xlf/Resources.pl.xlf | Removes Polish localization for the tool. |
| src/SettingsMigrator/Resources/xlf/Resources.pt-BR.xlf | Removes Portuguese (Brazil) localization for the tool. |
| src/SettingsMigrator/Resources/xlf/Resources.ru.xlf | Removes Russian localization for the tool. |
| src/SettingsMigrator/Resources/xlf/Resources.tr.xlf | Removes Turkish localization for the tool. |
| src/SettingsMigrator/Resources/xlf/Resources.zh-Hans.xlf | Removes Simplified Chinese localization for the tool. |
| src/SettingsMigrator/Resources/xlf/Resources.zh-Hant.xlf | Removes Traditional Chinese localization for the tool. |
| src/SettingsMigrator/SettingsMigrator.csproj | Removes the tool project definition from the repo. |
| src/SettingsMigrator/TestSettingsNodes.cs | Removes the helper model type used by the tool. |
| test/SettingsMigrator.UnitTests/MigratorTests.cs | Removes unit tests for migration behavior. |
| test/SettingsMigrator.UnitTests/PathResolverTests.cs | Removes unit tests for CLI/path resolution behavior. |
| test/SettingsMigrator.UnitTests/ProgramTests.cs | Removes unit tests for CLI argument handling. |
| test/SettingsMigrator.UnitTests/SettingsMigrator.UnitTests.csproj | Removes the unit test project definition. |
| test/SettingsMigrator.UnitTests/oldRunSettingsWithDataCollector.runsettings | Removes test data used by the deleted unit tests. |
| test/SettingsMigrator.UnitTests/oldRunSettingsWithEmbeddedSettings.runsettings | Removes test data used by the deleted unit tests. |
| test/SettingsMigrator.UnitTests/oldTestSettings.testsettings | Removes test data used by the deleted unit tests. |
Files not reviewed (1)
- src/SettingsMigrator/Resources/Resources.Designer.cs: Language not supported
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| Visual Studio historically used `.testsettings` files for test configuration. The modern format is `.runsettings`. The two formats differ in structure, and some `.testsettings` nodes map to `<LegacySettings>` wrappers in `.runsettings` to preserve backward compatibility. | ||
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| See also: [RFC 0023 - TestSettings Deprecation](../../docs/RFCs/0023-TestSettings-Deprecation.md) |
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The relative link likely points to .github/docs/... rather than the repo-level docs/... because this file lives under .github/skills/settings-migration/. Update the relative path (e.g., one more ..) so the RFC link resolves correctly on GitHub.
Suggested change
| See also: [RFC 0023 - TestSettings Deprecation](../../docs/RFCs/0023-TestSettings-Deprecation.md) | |
| See also: [RFC 0023 - TestSettings Deprecation](../../../docs/RFCs/0023-TestSettings-Deprecation.md) |
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| | XPath in .testsettings | Node Name | Purpose | | ||
| |---|---|---| | ||
| | `/TestSettings/Deployment` | Deployment | File deployment settings | | ||
| | `/TestSettings/Scripts` | Scripts | Setup/cleanup scripts | | ||
| | `/TestSettings/Execution/TestTypeSpecific/WebTestRunConfiguration` | WebSettings | Web test configuration | | ||
| | `/TestSettings/Execution/AgentRule/DataCollectors/DataCollector` | DataCollectors | Data collector definitions | | ||
| | `/TestSettings/Execution/Timeouts` | Timeouts | Timeout attributes | | ||
| | `/TestSettings/Execution/TestTypeSpecific/UnitTestRunConfig` | UnitTestConfig | Unit test run configuration | | ||
| | `/TestSettings/Execution/Hosts` | Hosts | Host configuration | | ||
| | `/TestSettings/Execution` | Execution | Execution attributes (parallelTestCount, hostProcessPlatform) | |
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This markdown table syntax is invalid due to the double leading pipes (||), which prevents GitHub from rendering it as a table. Replace each row with a single leading | so the mapping table renders correctly.
| ``` | ||
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| **Rules for the Execution sub-node:** | ||
| - Only create `<Execution>` if at least one of `UnitTestConfig`, `parallelTestCount`, `testTimeout`, `Hosts` is present |
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The rules are internally inconsistent: the bullet list says hostProcessPlatform is an <Execution> attribute, but the condition for creating <Execution> doesn’t include hostProcessPlatform. Either include hostProcessPlatform in the creation condition, or explicitly document what to do when hostProcessPlatform is present but none of the other triggers are.
Suggested change
| - Only create `<Execution>` if at least one of `UnitTestConfig`, `parallelTestCount`, `testTimeout`, `Hosts` is present | |
| - Only create `<Execution>` if at least one of `UnitTestConfig`, `parallelTestCount`, `testTimeout`, `Hosts`, or `hostProcessPlatform` is present |
Documents how every code path, test scenario, and XML mapping from the removed SettingsMigrator tool is accounted for in the replacement skill. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Summary
Replaces the \SettingsMigrator.exe\ tool with a Copilot skill that documents the complete .testsettings\ → .runsettings\ migration process, then removes all source code and tests.
Motivation
The SettingsMigrator is a .NET Framework-only console app (~420 lines of XML transformation code, 14 localization files, 16 unit tests). Its functionality is straightforward XML node mapping that can be documented as step-by-step instructions usable by both AI agents and humans.
Changes
Added
Removed (~2000 lines)
Verification