Merge hotreload-utils source into runtime repo - #126512

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akoeplinger merged 7 commits into
dotnet:mainfrom
steveisok:merge-hotreload-utils
Apr 10, 2026
Merged

Merge hotreload-utils source into runtime repo#126512
akoeplinger merged 7 commits into
dotnet:mainfrom
steveisok:merge-hotreload-utils

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Copy the hotreload-utils source code from dotnet/hotreload-utils into src/tools/hotreload-delta-gen/ and replace the NuGet PackageReference with direct in-repo MSBuild targets, eliminating the cross-repo dependency.

Changes:

  • Add 5 projects + shared code from hotreload-utils under src/tools/hotreload-delta-gen/
  • Create eng/testing/hotreload-delta-gen.targets replacing the NuGet package's .targets file
  • Update 3 consumers (ApplyUpdate tests, WASM HotReload test, Mono sample) to import local targets instead of NuGet package
  • Add BuildTool and Tasks to src/libraries/pretest.proj for build ordering
  • Remove hotreload-utils dependency from eng/Version.Details.xml and eng/Version.Details.props
  • Suppress analyzers on imported code (RunAnalyzers=false) matching the illink pattern

@steveisok
Merge hotreload-utils source into runtime repo
d4e3330
Copy the hotreload-utils source code from dotnet/hotreload-utils into
src/tools/hotreload-delta-gen/ and replace the NuGet PackageReference
with direct in-repo MSBuild targets, eliminating the cross-repo
dependency.
Changes:
- Add 5 projects + shared code from hotreload-utils under
src/tools/hotreload-delta-gen/
- Create eng/testing/hotreload-delta-gen.targets replacing the NuGet
package's .targets file
- Update 3 consumers (ApplyUpdate tests, WASM HotReload test, Mono
sample) to import local targets instead of NuGet package
- Add BuildTool and Tasks to src/libraries/pretest.proj for build
ordering
- Remove hotreload-utils dependency from eng/Version.Details.xml and
eng/Version.Details.props
- Suppress analyzers on imported code (RunAnalyzers=false) matching
the illink pattern
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Pull request overview

This PR vendors the hotreload-utils delta generation toolchain into the runtime repo under src/tools/hotreload-delta-gen/, replaces the external NuGet-based integration with in-repo MSBuild targets, and updates existing consumers to use the in-repo targets.

Changes:

  • Added in-repo hot reload delta generator source (tool + MSBuild task + shared data/types) under src/tools/hotreload-delta-gen/.
  • Introduced eng/testing/hotreload-delta-gen.targets to replace the NuGet package .targets and updated consumers to import it.
  • Removed the dotnet/hotreload-utils dependency from versioning files and ensured build ordering via src/libraries/pretest.proj.

Reviewed changes

Copilot reviewed 43 out of 43 changed files in this pull request and generated 9 comments.

Show a summary per file
FileDescription
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.csAdds FileSystemWatcher-to-Channel async event streaming for live delta generation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/AsyncEnumerableExtras.csAdds helper to provide an empty IAsyncEnumerable<T>.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Script/ParsedScript.csAdds parsed-script representation for scripted delta runs.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Script/Json/Parsing.csAdds JSON parsing for scripted delta input.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.csAdds runner that reads a script file and generates deltas.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/LiveRunner.csAdds runner that watches the filesystem for live edits and generates deltas.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runner.csAdds common runner orchestration (baseline setup, capability handling, delta loop).
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Plan/Change.csAdds plan/change primitives used across scripted/live modes.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Microsoft.DotNet.HotReload.Utils.Generator.csprojDefines the generator project and Roslyn/MSBuild dependencies.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/EnC/EditAndContinueCapabilities.csVendors EnC capability enum used for Roslyn Hot Reload integration.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/EditAndContinueCapabilitiesParser.csAdds parsing of capability strings into enum values.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DocResolver.csAdds file-path → DocumentId mapping for Roslyn documents.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DiffyException.csAdds typed exception with process exit code propagation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaProject.csCore delta build logic using Roslyn HotReloadService.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaOutputStreams.csWraps delta output streams and disposal semantics.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaNaming.csDefines naming convention for emitted delta artifacts per revision.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Delta.csDefines delta input record for the generation pipeline.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Config.csAdds config model and builder for scripted/live invocation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.csAdds baseline project loading and HotReloadService session setup.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.csDefines baseline artifacts bundle passed through generation pipeline.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Tasks/Microsoft.DotNet.HotReload.Utils.Generator.Tasks.csprojAdds MSBuild task project used by the new targets file.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.csAdds MSBuild task to compute incremental inputs/outputs from the delta script.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Microsoft.DotNet.HotReload.Utils.Generator.Frontend.csprojAdds CLI frontend project for the generator.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Frontend.csAdds argument parsing and exit-code handling for CLI invocation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/UpdateHandlerInfo.csAdds JSON-serializable update handler info payload.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/ScriptCapabilitiesConverter.csAdds JSON converter to support capabilities as string or string array.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/Script.csAdds JSON model types for delta scripts.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/OutputSummary/OutputSummary.csAdds JSON model types for delta output summaries.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Microsoft.DotNet.HotReload.Utils.Generator.Data.csprojAdds data-only project for shared contracts.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/README.mdDocuments the build tool usage (historical/package-oriented wording).
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/Program.csAdds entrypoint forwarding to the CLI frontend.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool.csprojAdds executable build-tool project.
src/tools/hotreload-delta-gen/Directory.Build.targetsImports parent tool build targets for this tool subtree.
src/tools/hotreload-delta-gen/Directory.Build.propsSets TFM/lang/nullable and disables analyzers for imported code.
src/tools/hotreload-delta-gen/Common/TempDirectory.csAdds temp directory helper.
src/tests/FunctionalTests/WebAssembly/Browser/HotReload/ApplyUpdateReferencedAssembly/ApplyUpdateReferencedAssembly.csprojSwitches from NuGet package reference to importing in-repo targets.
src/mono/sample/mbr/console/ConsoleDelta.csprojSwitches from NuGet package reference to importing in-repo targets.
src/libraries/System.Runtime.Loader/tests/ApplyUpdate/Directory.Build.targetsImports in-repo hotreload delta gen targets for ApplyUpdate tests.
src/libraries/System.Runtime.Loader/tests/ApplyUpdate/Directory.Build.propsRemoves NuGet package reference for delta generation in ApplyUpdate tests.
src/libraries/pretest.projAdds tool/task projects to pretest build ordering.
eng/Version.Details.xmlRemoves hotreload-utils dependency entry.
eng/Version.Details.propsRemoves hotreload-utils version properties.
eng/testing/hotreload-delta-gen.targetsNew in-repo MSBuild targets replacing the NuGet-provided .targets.

Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.cs
Comment thread...n/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/ScriptCapabilitiesConverter.cs
Comment thread...rosoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.cs
Comment thread...rosoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.cs
Comment thread...tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.cs
Comment thread...tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Plan/Change.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.cs
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Comment thread...Microsoft.DotNet.HotReload.Utils.Generator/Microsoft.DotNet.HotReload.Utils.Generator.csproj Outdated
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Comment threadsrc/tools/hotreload-delta-gen/Directory.Build.props
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Pull request overview

Copilot reviewed 43 out of 43 changed files in this pull request and generated 5 comments.

Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.cs
Comment threadeng/testing/hotreload-delta-gen.targets Outdated
Comment threadeng/testing/hotreload-delta-gen.targets Outdated
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Frontend.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.cs
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akoeplingerand others added 2 commits April 9, 2026 16:34
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Pull request overview

Copilot reviewed 43 out of 43 changed files in this pull request and generated 2 comments.

Comment threadeng/testing/hotreload-delta-gen.targets
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.cs
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/ba-g unrelated infrastructure failures

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akoeplinger merged commit 5cb7b8c into dotnet:mainApr 10, 2026
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akoeplinger deleted the merge-hotreload-utils branch April 10, 2026 16:19
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@akoeplingerakoeplingerakoeplinger approved these changes
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@vitek-karasvitek-karasAwaiting requested review from vitek-karasvitek-karas is a code owner

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})();
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var __re = new RegExp('^' + "github\\.com" + '

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Merge hotreload-utils source into runtime repo - #126512
Merged
akoeplinger merged 7 commits into
dotnet:mainfrom 
steveisok:merge-hotreload-utils
Apr 10, 2026
Merged
Merge hotreload-utils source into runtime repo#126512
akoeplinger merged 7 commits into
dotnet:mainfrom 
steveisok:merge-hotreload-utils
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Apr 3, 2026

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Copy the hotreload-utils source code from dotnet/hotreload-utils into src/tools/hotreload-delta-gen/ and replace the NuGet PackageReference with direct in-repo MSBuild targets, eliminating the cross-repo dependency.
Changes:
  • Add 5 projects + shared code from hotreload-utils under src/tools/hotreload-delta-gen/
  • Create eng/testing/hotreload-delta-gen.targets replacing the NuGet package's .targets file
  • Update 3 consumers (ApplyUpdate tests, WASM HotReload test, Mono sample) to import local targets instead of NuGet package
  • Add BuildTool and Tasks to src/libraries/pretest.proj for build ordering
  • Remove hotreload-utils dependency from eng/Version.Details.xml and eng/Version.Details.props
  • Suppress analyzers on imported code (RunAnalyzers=false) matching the illink pattern
@steveisok
Merge hotreload-utils source into runtime repo
d4e3330
Copy the hotreload-utils source code from dotnet/hotreload-utils into
src/tools/hotreload-delta-gen/ and replace the NuGet PackageReference
with direct in-repo MSBuild targets, eliminating the cross-repo
dependency.
Changes:
- Add 5 projects + shared code from hotreload-utils under
src/tools/hotreload-delta-gen/
- Create eng/testing/hotreload-delta-gen.targets replacing the NuGet
package's .targets file
- Update 3 consumers (ApplyUpdate tests, WASM HotReload test, Mono
sample) to import local targets instead of NuGet package
- Add BuildTool and Tasks to src/libraries/pretest.proj for build
ordering
- Remove hotreload-utils dependency from eng/Version.Details.xml and
eng/Version.Details.props
- Suppress analyzers on imported code (RunAnalyzers=false) matching
the illink pattern
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Tagging subscribers to this area: @dotnet/runtime-infrastructure

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Pull request overview
This PR vendors the hotreload-utils delta generation toolchain into the runtime repo under src/tools/hotreload-delta-gen/, replaces the external NuGet-based integration with in-repo MSBuild targets, and updates existing consumers to use the in-repo targets.
Changes:
  • Added in-repo hot reload delta generator source (tool + MSBuild task + shared data/types) under src/tools/hotreload-delta-gen/.
  • Introduced eng/testing/hotreload-delta-gen.targets to replace the NuGet package .targets and updated consumers to import it.
  • Removed the dotnet/hotreload-utils dependency from versioning files and ensured build ordering via src/libraries/pretest.proj.
Reviewed changes
Copilot reviewed 43 out of 43 changed files in this pull request and generated 9 comments.
Show a summary per file
FileDescription
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.csAdds FileSystemWatcher-to-Channel async event streaming for live delta generation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/AsyncEnumerableExtras.csAdds helper to provide an empty IAsyncEnumerable<T>.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Script/ParsedScript.csAdds parsed-script representation for scripted delta runs.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Script/Json/Parsing.csAdds JSON parsing for scripted delta input.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.csAdds runner that reads a script file and generates deltas.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/LiveRunner.csAdds runner that watches the filesystem for live edits and generates deltas.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runner.csAdds common runner orchestration (baseline setup, capability handling, delta loop).
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Plan/Change.csAdds plan/change primitives used across scripted/live modes.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Microsoft.DotNet.HotReload.Utils.Generator.csprojDefines the generator project and Roslyn/MSBuild dependencies.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/EnC/EditAndContinueCapabilities.csVendors EnC capability enum used for Roslyn Hot Reload integration.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/EditAndContinueCapabilitiesParser.csAdds parsing of capability strings into enum values.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DocResolver.csAdds file-path → DocumentId mapping for Roslyn documents.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DiffyException.csAdds typed exception with process exit code propagation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaProject.csCore delta build logic using Roslyn HotReloadService.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaOutputStreams.csWraps delta output streams and disposal semantics.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaNaming.csDefines naming convention for emitted delta artifacts per revision.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Delta.csDefines delta input record for the generation pipeline.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Config.csAdds config model and builder for scripted/live invocation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.csAdds baseline project loading and HotReloadService session setup.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.csDefines baseline artifacts bundle passed through generation pipeline.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Tasks/Microsoft.DotNet.HotReload.Utils.Generator.Tasks.csprojAdds MSBuild task project used by the new targets file.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.csAdds MSBuild task to compute incremental inputs/outputs from the delta script.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Microsoft.DotNet.HotReload.Utils.Generator.Frontend.csprojAdds CLI frontend project for the generator.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Frontend.csAdds argument parsing and exit-code handling for CLI invocation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/UpdateHandlerInfo.csAdds JSON-serializable update handler info payload.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/ScriptCapabilitiesConverter.csAdds JSON converter to support capabilities as string or string array.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/Script.csAdds JSON model types for delta scripts.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/OutputSummary/OutputSummary.csAdds JSON model types for delta output summaries.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Microsoft.DotNet.HotReload.Utils.Generator.Data.csprojAdds data-only project for shared contracts.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/README.mdDocuments the build tool usage (historical/package-oriented wording).
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/Program.csAdds entrypoint forwarding to the CLI frontend.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool.csprojAdds executable build-tool project.
src/tools/hotreload-delta-gen/Directory.Build.targetsImports parent tool build targets for this tool subtree.
src/tools/hotreload-delta-gen/Directory.Build.propsSets TFM/lang/nullable and disables analyzers for imported code.
src/tools/hotreload-delta-gen/Common/TempDirectory.csAdds temp directory helper.
src/tests/FunctionalTests/WebAssembly/Browser/HotReload/ApplyUpdateReferencedAssembly/ApplyUpdateReferencedAssembly.csprojSwitches from NuGet package reference to importing in-repo targets.
src/mono/sample/mbr/console/ConsoleDelta.csprojSwitches from NuGet package reference to importing in-repo targets.
src/libraries/System.Runtime.Loader/tests/ApplyUpdate/Directory.Build.targetsImports in-repo hotreload delta gen targets for ApplyUpdate tests.
src/libraries/System.Runtime.Loader/tests/ApplyUpdate/Directory.Build.propsRemoves NuGet package reference for delta generation in ApplyUpdate tests.
src/libraries/pretest.projAdds tool/task projects to pretest build ordering.
eng/Version.Details.xmlRemoves hotreload-utils dependency entry.
eng/Version.Details.propsRemoves hotreload-utils version properties.
eng/testing/hotreload-delta-gen.targetsNew in-repo MSBuild targets replacing the NuGet-provided .targets.
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.cs
Comment thread...n/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/ScriptCapabilitiesConverter.cs
Comment thread...rosoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.cs
Comment thread...rosoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.cs
Comment thread...tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.cs
Comment thread...tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Plan/Change.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.cs

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Comment threadsrc/tools/hotreload-delta-gen/Directory.Build.props
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Co-authored-by: Alexander Köplinger <alex.koeplinger@outlook.com>
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Pull request overview
Copilot reviewed 43 out of 43 changed files in this pull request and generated 5 comments.
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.cs
Comment threadeng/testing/hotreload-delta-gen.targets
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Comment threadeng/testing/hotreload-delta-gen.targets
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Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Frontend.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.cs

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Pull request overview
Copilot reviewed 43 out of 43 changed files in this pull request and generated 2 comments.
Comment threadeng/testing/hotreload-delta-gen.targets
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.cs

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/ba-g unrelated infrastructure failures
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Merge hotreload-utils source into runtime repo - #126512
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steveisok:merge-hotreload-utils
Apr 10, 2026
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Merge hotreload-utils source into runtime repo#126512
akoeplinger merged 7 commits into
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steveisok:merge-hotreload-utils
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Copy the hotreload-utils source code from dotnet/hotreload-utils into src/tools/hotreload-delta-gen/ and replace the NuGet PackageReference with direct in-repo MSBuild targets, eliminating the cross-repo dependency.
Changes:
  • Add 5 projects + shared code from hotreload-utils under src/tools/hotreload-delta-gen/
  • Create eng/testing/hotreload-delta-gen.targets replacing the NuGet package's .targets file
  • Update 3 consumers (ApplyUpdate tests, WASM HotReload test, Mono sample) to import local targets instead of NuGet package
  • Add BuildTool and Tasks to src/libraries/pretest.proj for build ordering
  • Remove hotreload-utils dependency from eng/Version.Details.xml and eng/Version.Details.props
  • Suppress analyzers on imported code (RunAnalyzers=false) matching the illink pattern
@steveisok
Merge hotreload-utils source into runtime repo
d4e3330
Copy the hotreload-utils source code from dotnet/hotreload-utils into
src/tools/hotreload-delta-gen/ and replace the NuGet PackageReference
with direct in-repo MSBuild targets, eliminating the cross-repo
dependency.
Changes:
- Add 5 projects + shared code from hotreload-utils under
src/tools/hotreload-delta-gen/
- Create eng/testing/hotreload-delta-gen.targets replacing the NuGet
package's .targets file
- Update 3 consumers (ApplyUpdate tests, WASM HotReload test, Mono
sample) to import local targets instead of NuGet package
- Add BuildTool and Tasks to src/libraries/pretest.proj for build
ordering
- Remove hotreload-utils dependency from eng/Version.Details.xml and
eng/Version.Details.props
- Suppress analyzers on imported code (RunAnalyzers=false) matching
the illink pattern
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Pull request overview
This PR vendors the hotreload-utils delta generation toolchain into the runtime repo under src/tools/hotreload-delta-gen/, replaces the external NuGet-based integration with in-repo MSBuild targets, and updates existing consumers to use the in-repo targets.
Changes:
  • Added in-repo hot reload delta generator source (tool + MSBuild task + shared data/types) under src/tools/hotreload-delta-gen/.
  • Introduced eng/testing/hotreload-delta-gen.targets to replace the NuGet package .targets and updated consumers to import it.
  • Removed the dotnet/hotreload-utils dependency from versioning files and ensured build ordering via src/libraries/pretest.proj.
Reviewed changes
Copilot reviewed 43 out of 43 changed files in this pull request and generated 9 comments.
Show a summary per file
FileDescription
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.csAdds FileSystemWatcher-to-Channel async event streaming for live delta generation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/AsyncEnumerableExtras.csAdds helper to provide an empty IAsyncEnumerable<T>.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Script/ParsedScript.csAdds parsed-script representation for scripted delta runs.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Script/Json/Parsing.csAdds JSON parsing for scripted delta input.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.csAdds runner that reads a script file and generates deltas.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/LiveRunner.csAdds runner that watches the filesystem for live edits and generates deltas.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runner.csAdds common runner orchestration (baseline setup, capability handling, delta loop).
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Plan/Change.csAdds plan/change primitives used across scripted/live modes.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Microsoft.DotNet.HotReload.Utils.Generator.csprojDefines the generator project and Roslyn/MSBuild dependencies.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/EnC/EditAndContinueCapabilities.csVendors EnC capability enum used for Roslyn Hot Reload integration.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/EditAndContinueCapabilitiesParser.csAdds parsing of capability strings into enum values.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DocResolver.csAdds file-path → DocumentId mapping for Roslyn documents.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DiffyException.csAdds typed exception with process exit code propagation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaProject.csCore delta build logic using Roslyn HotReloadService.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaOutputStreams.csWraps delta output streams and disposal semantics.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaNaming.csDefines naming convention for emitted delta artifacts per revision.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Delta.csDefines delta input record for the generation pipeline.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Config.csAdds config model and builder for scripted/live invocation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.csAdds baseline project loading and HotReloadService session setup.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.csDefines baseline artifacts bundle passed through generation pipeline.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Tasks/Microsoft.DotNet.HotReload.Utils.Generator.Tasks.csprojAdds MSBuild task project used by the new targets file.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.csAdds MSBuild task to compute incremental inputs/outputs from the delta script.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Microsoft.DotNet.HotReload.Utils.Generator.Frontend.csprojAdds CLI frontend project for the generator.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Frontend.csAdds argument parsing and exit-code handling for CLI invocation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/UpdateHandlerInfo.csAdds JSON-serializable update handler info payload.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/ScriptCapabilitiesConverter.csAdds JSON converter to support capabilities as string or string array.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/Script.csAdds JSON model types for delta scripts.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/OutputSummary/OutputSummary.csAdds JSON model types for delta output summaries.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Microsoft.DotNet.HotReload.Utils.Generator.Data.csprojAdds data-only project for shared contracts.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/README.mdDocuments the build tool usage (historical/package-oriented wording).
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/Program.csAdds entrypoint forwarding to the CLI frontend.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool.csprojAdds executable build-tool project.
src/tools/hotreload-delta-gen/Directory.Build.targetsImports parent tool build targets for this tool subtree.
src/tools/hotreload-delta-gen/Directory.Build.propsSets TFM/lang/nullable and disables analyzers for imported code.
src/tools/hotreload-delta-gen/Common/TempDirectory.csAdds temp directory helper.
src/tests/FunctionalTests/WebAssembly/Browser/HotReload/ApplyUpdateReferencedAssembly/ApplyUpdateReferencedAssembly.csprojSwitches from NuGet package reference to importing in-repo targets.
src/mono/sample/mbr/console/ConsoleDelta.csprojSwitches from NuGet package reference to importing in-repo targets.
src/libraries/System.Runtime.Loader/tests/ApplyUpdate/Directory.Build.targetsImports in-repo hotreload delta gen targets for ApplyUpdate tests.
src/libraries/System.Runtime.Loader/tests/ApplyUpdate/Directory.Build.propsRemoves NuGet package reference for delta generation in ApplyUpdate tests.
src/libraries/pretest.projAdds tool/task projects to pretest build ordering.
eng/Version.Details.xmlRemoves hotreload-utils dependency entry.
eng/Version.Details.propsRemoves hotreload-utils version properties.
eng/testing/hotreload-delta-gen.targetsNew in-repo MSBuild targets replacing the NuGet-provided .targets.
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.cs
Comment thread...n/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/ScriptCapabilitiesConverter.cs
Comment thread...rosoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.cs
Comment thread...rosoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.cs
Comment thread...tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.cs
Comment thread...tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Plan/Change.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.cs

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Comment thread...tNet.HotReload.Utils.Generator.Tasks/Microsoft.DotNet.HotReload.Utils.Generator.Tasks.csproj
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Comment thread...Microsoft.DotNet.HotReload.Utils.Generator/Microsoft.DotNet.HotReload.Utils.Generator.csproj
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Comment threadsrc/tools/hotreload-delta-gen/Directory.Build.props
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Co-authored-by: Alexander Köplinger <alex.koeplinger@outlook.com>
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Pull request overview
Copilot reviewed 43 out of 43 changed files in this pull request and generated 5 comments.
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.cs
Comment threadeng/testing/hotreload-delta-gen.targets
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Comment threadeng/testing/hotreload-delta-gen.targets
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Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Frontend.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.cs

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review requested due to automatic review settings
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akoeplingerand others
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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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Apply suggestion from @Copilot
3ed9426
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Pull request overview
Copilot reviewed 43 out of 43 changed files in this pull request and generated 2 comments.
Comment threadeng/testing/hotreload-delta-gen.targets
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.cs

This was referenced Apr 9, 2026

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/ba-g unrelated infrastructure failures
@akoeplinger
akoeplinger
merged commit 5cb7b8c
into
dotnet:mainApr 10, 2026

170 of 176 checks passed

@akoeplinger
akoeplinger
deleted the

merge-hotreload-utils

branch
April 10, 2026 16:19

This was referenced Apr 10, 2026

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@akoeplingerakoeplingerakoeplinger approved these changes
@thaystgthaystgthaystg approved these changes
@vitek-karasvitek-karasAwaiting requested review from vitek-karasvitek-karas is a code owner

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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
Merge hotreload-utils source into runtime repo - #126512
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akoeplinger merged 7 commits into
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steveisok:merge-hotreload-utils
Apr 10, 2026
Merged
Merge hotreload-utils source into runtime repo#126512
akoeplinger merged 7 commits into
dotnet:mainfrom 
steveisok:merge-hotreload-utils
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Copy the hotreload-utils source code from dotnet/hotreload-utils into src/tools/hotreload-delta-gen/ and replace the NuGet PackageReference with direct in-repo MSBuild targets, eliminating the cross-repo dependency.
Changes:
  • Add 5 projects + shared code from hotreload-utils under src/tools/hotreload-delta-gen/
  • Create eng/testing/hotreload-delta-gen.targets replacing the NuGet package's .targets file
  • Update 3 consumers (ApplyUpdate tests, WASM HotReload test, Mono sample) to import local targets instead of NuGet package
  • Add BuildTool and Tasks to src/libraries/pretest.proj for build ordering
  • Remove hotreload-utils dependency from eng/Version.Details.xml and eng/Version.Details.props
  • Suppress analyzers on imported code (RunAnalyzers=false) matching the illink pattern
@steveisok
Merge hotreload-utils source into runtime repo
d4e3330
Copy the hotreload-utils source code from dotnet/hotreload-utils into
src/tools/hotreload-delta-gen/ and replace the NuGet PackageReference
with direct in-repo MSBuild targets, eliminating the cross-repo
dependency.
Changes:
- Add 5 projects + shared code from hotreload-utils under
src/tools/hotreload-delta-gen/
- Create eng/testing/hotreload-delta-gen.targets replacing the NuGet
package's .targets file
- Update 3 consumers (ApplyUpdate tests, WASM HotReload test, Mono
sample) to import local targets instead of NuGet package
- Add BuildTool and Tasks to src/libraries/pretest.proj for build
ordering
- Remove hotreload-utils dependency from eng/Version.Details.xml and
eng/Version.Details.props
- Suppress analyzers on imported code (RunAnalyzers=false) matching
the illink pattern
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Tagging subscribers to this area: @dotnet/runtime-infrastructure

See info in area-owners.md if you want to be subscribed.
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Pull request overview
This PR vendors the hotreload-utils delta generation toolchain into the runtime repo under src/tools/hotreload-delta-gen/, replaces the external NuGet-based integration with in-repo MSBuild targets, and updates existing consumers to use the in-repo targets.
Changes:
  • Added in-repo hot reload delta generator source (tool + MSBuild task + shared data/types) under src/tools/hotreload-delta-gen/.
  • Introduced eng/testing/hotreload-delta-gen.targets to replace the NuGet package .targets and updated consumers to import it.
  • Removed the dotnet/hotreload-utils dependency from versioning files and ensured build ordering via src/libraries/pretest.proj.
Reviewed changes
Copilot reviewed 43 out of 43 changed files in this pull request and generated 9 comments.
Show a summary per file
FileDescription
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.csAdds FileSystemWatcher-to-Channel async event streaming for live delta generation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/AsyncEnumerableExtras.csAdds helper to provide an empty IAsyncEnumerable<T>.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Script/ParsedScript.csAdds parsed-script representation for scripted delta runs.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Script/Json/Parsing.csAdds JSON parsing for scripted delta input.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.csAdds runner that reads a script file and generates deltas.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/LiveRunner.csAdds runner that watches the filesystem for live edits and generates deltas.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runner.csAdds common runner orchestration (baseline setup, capability handling, delta loop).
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Plan/Change.csAdds plan/change primitives used across scripted/live modes.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Microsoft.DotNet.HotReload.Utils.Generator.csprojDefines the generator project and Roslyn/MSBuild dependencies.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/EnC/EditAndContinueCapabilities.csVendors EnC capability enum used for Roslyn Hot Reload integration.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/EditAndContinueCapabilitiesParser.csAdds parsing of capability strings into enum values.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DocResolver.csAdds file-path → DocumentId mapping for Roslyn documents.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DiffyException.csAdds typed exception with process exit code propagation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaProject.csCore delta build logic using Roslyn HotReloadService.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaOutputStreams.csWraps delta output streams and disposal semantics.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaNaming.csDefines naming convention for emitted delta artifacts per revision.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Delta.csDefines delta input record for the generation pipeline.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Config.csAdds config model and builder for scripted/live invocation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.csAdds baseline project loading and HotReloadService session setup.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.csDefines baseline artifacts bundle passed through generation pipeline.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Tasks/Microsoft.DotNet.HotReload.Utils.Generator.Tasks.csprojAdds MSBuild task project used by the new targets file.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.csAdds MSBuild task to compute incremental inputs/outputs from the delta script.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Microsoft.DotNet.HotReload.Utils.Generator.Frontend.csprojAdds CLI frontend project for the generator.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Frontend.csAdds argument parsing and exit-code handling for CLI invocation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/UpdateHandlerInfo.csAdds JSON-serializable update handler info payload.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/ScriptCapabilitiesConverter.csAdds JSON converter to support capabilities as string or string array.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/Script.csAdds JSON model types for delta scripts.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/OutputSummary/OutputSummary.csAdds JSON model types for delta output summaries.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Microsoft.DotNet.HotReload.Utils.Generator.Data.csprojAdds data-only project for shared contracts.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/README.mdDocuments the build tool usage (historical/package-oriented wording).
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/Program.csAdds entrypoint forwarding to the CLI frontend.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool.csprojAdds executable build-tool project.
src/tools/hotreload-delta-gen/Directory.Build.targetsImports parent tool build targets for this tool subtree.
src/tools/hotreload-delta-gen/Directory.Build.propsSets TFM/lang/nullable and disables analyzers for imported code.
src/tools/hotreload-delta-gen/Common/TempDirectory.csAdds temp directory helper.
src/tests/FunctionalTests/WebAssembly/Browser/HotReload/ApplyUpdateReferencedAssembly/ApplyUpdateReferencedAssembly.csprojSwitches from NuGet package reference to importing in-repo targets.
src/mono/sample/mbr/console/ConsoleDelta.csprojSwitches from NuGet package reference to importing in-repo targets.
src/libraries/System.Runtime.Loader/tests/ApplyUpdate/Directory.Build.targetsImports in-repo hotreload delta gen targets for ApplyUpdate tests.
src/libraries/System.Runtime.Loader/tests/ApplyUpdate/Directory.Build.propsRemoves NuGet package reference for delta generation in ApplyUpdate tests.
src/libraries/pretest.projAdds tool/task projects to pretest build ordering.
eng/Version.Details.xmlRemoves hotreload-utils dependency entry.
eng/Version.Details.propsRemoves hotreload-utils version properties.
eng/testing/hotreload-delta-gen.targetsNew in-repo MSBuild targets replacing the NuGet-provided .targets.
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.cs
Comment thread...n/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/ScriptCapabilitiesConverter.cs
Comment thread...rosoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.cs
Comment thread...rosoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.cs
Comment thread...tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.cs
Comment thread...tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Plan/Change.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.cs

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Comment threadsrc/tools/hotreload-delta-gen/Directory.Build.props
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Pull request overview
Copilot reviewed 43 out of 43 changed files in this pull request and generated 5 comments.
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.cs
Comment threadeng/testing/hotreload-delta-gen.targets
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Comment threadeng/testing/hotreload-delta-gen.targets
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Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Frontend.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.cs

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Copilot reviewed 43 out of 43 changed files in this pull request and generated 2 comments.
Comment threadeng/testing/hotreload-delta-gen.targets
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.cs

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@akoeplingerakoeplingerakoeplinger approved these changes
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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Merge hotreload-utils source into runtime repo - #126512
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steveisok:merge-hotreload-utils
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Merge hotreload-utils source into runtime repo#126512
akoeplinger merged 7 commits into
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steveisok:merge-hotreload-utils
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Copy the hotreload-utils source code from dotnet/hotreload-utils into src/tools/hotreload-delta-gen/ and replace the NuGet PackageReference with direct in-repo MSBuild targets, eliminating the cross-repo dependency.
Changes:
  • Add 5 projects + shared code from hotreload-utils under src/tools/hotreload-delta-gen/
  • Create eng/testing/hotreload-delta-gen.targets replacing the NuGet package's .targets file
  • Update 3 consumers (ApplyUpdate tests, WASM HotReload test, Mono sample) to import local targets instead of NuGet package
  • Add BuildTool and Tasks to src/libraries/pretest.proj for build ordering
  • Remove hotreload-utils dependency from eng/Version.Details.xml and eng/Version.Details.props
  • Suppress analyzers on imported code (RunAnalyzers=false) matching the illink pattern
@steveisok
Merge hotreload-utils source into runtime repo
d4e3330
Copy the hotreload-utils source code from dotnet/hotreload-utils into
src/tools/hotreload-delta-gen/ and replace the NuGet PackageReference
with direct in-repo MSBuild targets, eliminating the cross-repo
dependency.
Changes:
- Add 5 projects + shared code from hotreload-utils under
src/tools/hotreload-delta-gen/
- Create eng/testing/hotreload-delta-gen.targets replacing the NuGet
package's .targets file
- Update 3 consumers (ApplyUpdate tests, WASM HotReload test, Mono
sample) to import local targets instead of NuGet package
- Add BuildTool and Tasks to src/libraries/pretest.proj for build
ordering
- Remove hotreload-utils dependency from eng/Version.Details.xml and
eng/Version.Details.props
- Suppress analyzers on imported code (RunAnalyzers=false) matching
the illink pattern
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Pull request overview
This PR vendors the hotreload-utils delta generation toolchain into the runtime repo under src/tools/hotreload-delta-gen/, replaces the external NuGet-based integration with in-repo MSBuild targets, and updates existing consumers to use the in-repo targets.
Changes:
  • Added in-repo hot reload delta generator source (tool + MSBuild task + shared data/types) under src/tools/hotreload-delta-gen/.
  • Introduced eng/testing/hotreload-delta-gen.targets to replace the NuGet package .targets and updated consumers to import it.
  • Removed the dotnet/hotreload-utils dependency from versioning files and ensured build ordering via src/libraries/pretest.proj.
Reviewed changes
Copilot reviewed 43 out of 43 changed files in this pull request and generated 9 comments.
Show a summary per file
FileDescription
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.csAdds FileSystemWatcher-to-Channel async event streaming for live delta generation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/AsyncEnumerableExtras.csAdds helper to provide an empty IAsyncEnumerable<T>.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Script/ParsedScript.csAdds parsed-script representation for scripted delta runs.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Script/Json/Parsing.csAdds JSON parsing for scripted delta input.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.csAdds runner that reads a script file and generates deltas.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/LiveRunner.csAdds runner that watches the filesystem for live edits and generates deltas.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runner.csAdds common runner orchestration (baseline setup, capability handling, delta loop).
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Plan/Change.csAdds plan/change primitives used across scripted/live modes.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Microsoft.DotNet.HotReload.Utils.Generator.csprojDefines the generator project and Roslyn/MSBuild dependencies.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/EnC/EditAndContinueCapabilities.csVendors EnC capability enum used for Roslyn Hot Reload integration.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/EditAndContinueCapabilitiesParser.csAdds parsing of capability strings into enum values.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DocResolver.csAdds file-path → DocumentId mapping for Roslyn documents.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DiffyException.csAdds typed exception with process exit code propagation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaProject.csCore delta build logic using Roslyn HotReloadService.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaOutputStreams.csWraps delta output streams and disposal semantics.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaNaming.csDefines naming convention for emitted delta artifacts per revision.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Delta.csDefines delta input record for the generation pipeline.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Config.csAdds config model and builder for scripted/live invocation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.csAdds baseline project loading and HotReloadService session setup.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.csDefines baseline artifacts bundle passed through generation pipeline.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Tasks/Microsoft.DotNet.HotReload.Utils.Generator.Tasks.csprojAdds MSBuild task project used by the new targets file.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.csAdds MSBuild task to compute incremental inputs/outputs from the delta script.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Microsoft.DotNet.HotReload.Utils.Generator.Frontend.csprojAdds CLI frontend project for the generator.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Frontend.csAdds argument parsing and exit-code handling for CLI invocation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/UpdateHandlerInfo.csAdds JSON-serializable update handler info payload.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/ScriptCapabilitiesConverter.csAdds JSON converter to support capabilities as string or string array.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/Script.csAdds JSON model types for delta scripts.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/OutputSummary/OutputSummary.csAdds JSON model types for delta output summaries.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Microsoft.DotNet.HotReload.Utils.Generator.Data.csprojAdds data-only project for shared contracts.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/README.mdDocuments the build tool usage (historical/package-oriented wording).
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/Program.csAdds entrypoint forwarding to the CLI frontend.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool.csprojAdds executable build-tool project.
src/tools/hotreload-delta-gen/Directory.Build.targetsImports parent tool build targets for this tool subtree.
src/tools/hotreload-delta-gen/Directory.Build.propsSets TFM/lang/nullable and disables analyzers for imported code.
src/tools/hotreload-delta-gen/Common/TempDirectory.csAdds temp directory helper.
src/tests/FunctionalTests/WebAssembly/Browser/HotReload/ApplyUpdateReferencedAssembly/ApplyUpdateReferencedAssembly.csprojSwitches from NuGet package reference to importing in-repo targets.
src/mono/sample/mbr/console/ConsoleDelta.csprojSwitches from NuGet package reference to importing in-repo targets.
src/libraries/System.Runtime.Loader/tests/ApplyUpdate/Directory.Build.targetsImports in-repo hotreload delta gen targets for ApplyUpdate tests.
src/libraries/System.Runtime.Loader/tests/ApplyUpdate/Directory.Build.propsRemoves NuGet package reference for delta generation in ApplyUpdate tests.
src/libraries/pretest.projAdds tool/task projects to pretest build ordering.
eng/Version.Details.xmlRemoves hotreload-utils dependency entry.
eng/Version.Details.propsRemoves hotreload-utils version properties.
eng/testing/hotreload-delta-gen.targetsNew in-repo MSBuild targets replacing the NuGet-provided .targets.
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.cs
Comment thread...n/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/ScriptCapabilitiesConverter.cs
Comment thread...rosoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.cs
Comment thread...rosoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.cs
Comment thread...tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.cs
Comment thread...tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Plan/Change.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.cs

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Comment threadsrc/tools/hotreload-delta-gen/Directory.Build.props
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Pull request overview
Copilot reviewed 43 out of 43 changed files in this pull request and generated 5 comments.
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.cs
Comment threadeng/testing/hotreload-delta-gen.targets
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Comment threadeng/testing/hotreload-delta-gen.targets
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Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Frontend.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.cs

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Pull request overview
Copilot reviewed 43 out of 43 changed files in this pull request and generated 2 comments.
Comment threadeng/testing/hotreload-delta-gen.targets
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.cs

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/ba-g unrelated infrastructure failures
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merged commit 5cb7b8c
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@akoeplingerakoeplingerakoeplinger approved these changes
@thaystgthaystgthaystg approved these changes
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
Merge hotreload-utils source into runtime repo - #126512
Merged
akoeplinger merged 7 commits into
dotnet:mainfrom 
steveisok:merge-hotreload-utils
Apr 10, 2026
Merged
Merge hotreload-utils source into runtime repo#126512
akoeplinger merged 7 commits into
dotnet:mainfrom 
steveisok:merge-hotreload-utils
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Copy the hotreload-utils source code from dotnet/hotreload-utils into src/tools/hotreload-delta-gen/ and replace the NuGet PackageReference with direct in-repo MSBuild targets, eliminating the cross-repo dependency.
Changes:
  • Add 5 projects + shared code from hotreload-utils under src/tools/hotreload-delta-gen/
  • Create eng/testing/hotreload-delta-gen.targets replacing the NuGet package's .targets file
  • Update 3 consumers (ApplyUpdate tests, WASM HotReload test, Mono sample) to import local targets instead of NuGet package
  • Add BuildTool and Tasks to src/libraries/pretest.proj for build ordering
  • Remove hotreload-utils dependency from eng/Version.Details.xml and eng/Version.Details.props
  • Suppress analyzers on imported code (RunAnalyzers=false) matching the illink pattern
@steveisok
Merge hotreload-utils source into runtime repo
d4e3330
Copy the hotreload-utils source code from dotnet/hotreload-utils into
src/tools/hotreload-delta-gen/ and replace the NuGet PackageReference
with direct in-repo MSBuild targets, eliminating the cross-repo
dependency.
Changes:
- Add 5 projects + shared code from hotreload-utils under
src/tools/hotreload-delta-gen/
- Create eng/testing/hotreload-delta-gen.targets replacing the NuGet
package's .targets file
- Update 3 consumers (ApplyUpdate tests, WASM HotReload test, Mono
sample) to import local targets instead of NuGet package
- Add BuildTool and Tasks to src/libraries/pretest.proj for build
ordering
- Remove hotreload-utils dependency from eng/Version.Details.xml and
eng/Version.Details.props
- Suppress analyzers on imported code (RunAnalyzers=false) matching
the illink pattern
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Pull request overview
This PR vendors the hotreload-utils delta generation toolchain into the runtime repo under src/tools/hotreload-delta-gen/, replaces the external NuGet-based integration with in-repo MSBuild targets, and updates existing consumers to use the in-repo targets.
Changes:
  • Added in-repo hot reload delta generator source (tool + MSBuild task + shared data/types) under src/tools/hotreload-delta-gen/.
  • Introduced eng/testing/hotreload-delta-gen.targets to replace the NuGet package .targets and updated consumers to import it.
  • Removed the dotnet/hotreload-utils dependency from versioning files and ensured build ordering via src/libraries/pretest.proj.
Reviewed changes
Copilot reviewed 43 out of 43 changed files in this pull request and generated 9 comments.
Show a summary per file
FileDescription
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.csAdds FileSystemWatcher-to-Channel async event streaming for live delta generation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/AsyncEnumerableExtras.csAdds helper to provide an empty IAsyncEnumerable<T>.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Script/ParsedScript.csAdds parsed-script representation for scripted delta runs.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Script/Json/Parsing.csAdds JSON parsing for scripted delta input.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.csAdds runner that reads a script file and generates deltas.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/LiveRunner.csAdds runner that watches the filesystem for live edits and generates deltas.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runner.csAdds common runner orchestration (baseline setup, capability handling, delta loop).
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Plan/Change.csAdds plan/change primitives used across scripted/live modes.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Microsoft.DotNet.HotReload.Utils.Generator.csprojDefines the generator project and Roslyn/MSBuild dependencies.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/EnC/EditAndContinueCapabilities.csVendors EnC capability enum used for Roslyn Hot Reload integration.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/EditAndContinueCapabilitiesParser.csAdds parsing of capability strings into enum values.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DocResolver.csAdds file-path → DocumentId mapping for Roslyn documents.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DiffyException.csAdds typed exception with process exit code propagation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaProject.csCore delta build logic using Roslyn HotReloadService.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaOutputStreams.csWraps delta output streams and disposal semantics.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaNaming.csDefines naming convention for emitted delta artifacts per revision.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Delta.csDefines delta input record for the generation pipeline.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Config.csAdds config model and builder for scripted/live invocation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.csAdds baseline project loading and HotReloadService session setup.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.csDefines baseline artifacts bundle passed through generation pipeline.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Tasks/Microsoft.DotNet.HotReload.Utils.Generator.Tasks.csprojAdds MSBuild task project used by the new targets file.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.csAdds MSBuild task to compute incremental inputs/outputs from the delta script.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Microsoft.DotNet.HotReload.Utils.Generator.Frontend.csprojAdds CLI frontend project for the generator.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Frontend.csAdds argument parsing and exit-code handling for CLI invocation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/UpdateHandlerInfo.csAdds JSON-serializable update handler info payload.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/ScriptCapabilitiesConverter.csAdds JSON converter to support capabilities as string or string array.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/Script.csAdds JSON model types for delta scripts.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/OutputSummary/OutputSummary.csAdds JSON model types for delta output summaries.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Microsoft.DotNet.HotReload.Utils.Generator.Data.csprojAdds data-only project for shared contracts.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/README.mdDocuments the build tool usage (historical/package-oriented wording).
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/Program.csAdds entrypoint forwarding to the CLI frontend.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool.csprojAdds executable build-tool project.
src/tools/hotreload-delta-gen/Directory.Build.targetsImports parent tool build targets for this tool subtree.
src/tools/hotreload-delta-gen/Directory.Build.propsSets TFM/lang/nullable and disables analyzers for imported code.
src/tools/hotreload-delta-gen/Common/TempDirectory.csAdds temp directory helper.
src/tests/FunctionalTests/WebAssembly/Browser/HotReload/ApplyUpdateReferencedAssembly/ApplyUpdateReferencedAssembly.csprojSwitches from NuGet package reference to importing in-repo targets.
src/mono/sample/mbr/console/ConsoleDelta.csprojSwitches from NuGet package reference to importing in-repo targets.
src/libraries/System.Runtime.Loader/tests/ApplyUpdate/Directory.Build.targetsImports in-repo hotreload delta gen targets for ApplyUpdate tests.
src/libraries/System.Runtime.Loader/tests/ApplyUpdate/Directory.Build.propsRemoves NuGet package reference for delta generation in ApplyUpdate tests.
src/libraries/pretest.projAdds tool/task projects to pretest build ordering.
eng/Version.Details.xmlRemoves hotreload-utils dependency entry.
eng/Version.Details.propsRemoves hotreload-utils version properties.
eng/testing/hotreload-delta-gen.targetsNew in-repo MSBuild targets replacing the NuGet-provided .targets.
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.cs
Comment thread...n/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/ScriptCapabilitiesConverter.cs
Comment thread...rosoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.cs
Comment thread...rosoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.cs
Comment thread...tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.cs
Comment thread...tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Plan/Change.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.cs

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Comment thread...tNet.HotReload.Utils.Generator.Tasks/Microsoft.DotNet.HotReload.Utils.Generator.Tasks.csproj
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Comment threadsrc/tools/hotreload-delta-gen/Directory.Build.props
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Pull request overview
Copilot reviewed 43 out of 43 changed files in this pull request and generated 5 comments.
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.cs
Comment threadeng/testing/hotreload-delta-gen.targets
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Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Frontend.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.cs

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Pull request overview
Copilot reviewed 43 out of 43 changed files in this pull request and generated 2 comments.
Comment threadeng/testing/hotreload-delta-gen.targets
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.cs

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/ba-g unrelated infrastructure failures
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@akoeplingerakoeplingerakoeplinger approved these changes
@thaystgthaystgthaystg approved these changes
@vitek-karasvitek-karasAwaiting requested review from vitek-karasvitek-karas is a code owner

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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Merge hotreload-utils source into runtime repo - #126512
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akoeplinger merged 7 commits into
dotnet:mainfrom 
steveisok:merge-hotreload-utils
Apr 10, 2026
Merged
Merge hotreload-utils source into runtime repo#126512
akoeplinger merged 7 commits into
dotnet:mainfrom 
steveisok:merge-hotreload-utils
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@steveisok
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Copy the hotreload-utils source code from dotnet/hotreload-utils into src/tools/hotreload-delta-gen/ and replace the NuGet PackageReference with direct in-repo MSBuild targets, eliminating the cross-repo dependency.
Changes:
  • Add 5 projects + shared code from hotreload-utils under src/tools/hotreload-delta-gen/
  • Create eng/testing/hotreload-delta-gen.targets replacing the NuGet package's .targets file
  • Update 3 consumers (ApplyUpdate tests, WASM HotReload test, Mono sample) to import local targets instead of NuGet package
  • Add BuildTool and Tasks to src/libraries/pretest.proj for build ordering
  • Remove hotreload-utils dependency from eng/Version.Details.xml and eng/Version.Details.props
  • Suppress analyzers on imported code (RunAnalyzers=false) matching the illink pattern
@steveisok
Merge hotreload-utils source into runtime repo
d4e3330
Copy the hotreload-utils source code from dotnet/hotreload-utils into
src/tools/hotreload-delta-gen/ and replace the NuGet PackageReference
with direct in-repo MSBuild targets, eliminating the cross-repo
dependency.
Changes:
- Add 5 projects + shared code from hotreload-utils under
src/tools/hotreload-delta-gen/
- Create eng/testing/hotreload-delta-gen.targets replacing the NuGet
package's .targets file
- Update 3 consumers (ApplyUpdate tests, WASM HotReload test, Mono
sample) to import local targets instead of NuGet package
- Add BuildTool and Tasks to src/libraries/pretest.proj for build
ordering
- Remove hotreload-utils dependency from eng/Version.Details.xml and
eng/Version.Details.props
- Suppress analyzers on imported code (RunAnalyzers=false) matching
the illink pattern
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Tagging subscribers to this area: @dotnet/runtime-infrastructure

See info in area-owners.md if you want to be subscribed.
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Pull request overview
This PR vendors the hotreload-utils delta generation toolchain into the runtime repo under src/tools/hotreload-delta-gen/, replaces the external NuGet-based integration with in-repo MSBuild targets, and updates existing consumers to use the in-repo targets.
Changes:
  • Added in-repo hot reload delta generator source (tool + MSBuild task + shared data/types) under src/tools/hotreload-delta-gen/.
  • Introduced eng/testing/hotreload-delta-gen.targets to replace the NuGet package .targets and updated consumers to import it.
  • Removed the dotnet/hotreload-utils dependency from versioning files and ensured build ordering via src/libraries/pretest.proj.
Reviewed changes
Copilot reviewed 43 out of 43 changed files in this pull request and generated 9 comments.
Show a summary per file
FileDescription
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.csAdds FileSystemWatcher-to-Channel async event streaming for live delta generation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/AsyncEnumerableExtras.csAdds helper to provide an empty IAsyncEnumerable<T>.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Script/ParsedScript.csAdds parsed-script representation for scripted delta runs.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Script/Json/Parsing.csAdds JSON parsing for scripted delta input.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.csAdds runner that reads a script file and generates deltas.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/LiveRunner.csAdds runner that watches the filesystem for live edits and generates deltas.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runner.csAdds common runner orchestration (baseline setup, capability handling, delta loop).
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Plan/Change.csAdds plan/change primitives used across scripted/live modes.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Microsoft.DotNet.HotReload.Utils.Generator.csprojDefines the generator project and Roslyn/MSBuild dependencies.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/EnC/EditAndContinueCapabilities.csVendors EnC capability enum used for Roslyn Hot Reload integration.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/EditAndContinueCapabilitiesParser.csAdds parsing of capability strings into enum values.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DocResolver.csAdds file-path → DocumentId mapping for Roslyn documents.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DiffyException.csAdds typed exception with process exit code propagation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaProject.csCore delta build logic using Roslyn HotReloadService.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaOutputStreams.csWraps delta output streams and disposal semantics.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaNaming.csDefines naming convention for emitted delta artifacts per revision.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Delta.csDefines delta input record for the generation pipeline.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Config.csAdds config model and builder for scripted/live invocation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.csAdds baseline project loading and HotReloadService session setup.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.csDefines baseline artifacts bundle passed through generation pipeline.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Tasks/Microsoft.DotNet.HotReload.Utils.Generator.Tasks.csprojAdds MSBuild task project used by the new targets file.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.csAdds MSBuild task to compute incremental inputs/outputs from the delta script.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Microsoft.DotNet.HotReload.Utils.Generator.Frontend.csprojAdds CLI frontend project for the generator.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Frontend.csAdds argument parsing and exit-code handling for CLI invocation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/UpdateHandlerInfo.csAdds JSON-serializable update handler info payload.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/ScriptCapabilitiesConverter.csAdds JSON converter to support capabilities as string or string array.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/Script.csAdds JSON model types for delta scripts.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/OutputSummary/OutputSummary.csAdds JSON model types for delta output summaries.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Microsoft.DotNet.HotReload.Utils.Generator.Data.csprojAdds data-only project for shared contracts.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/README.mdDocuments the build tool usage (historical/package-oriented wording).
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/Program.csAdds entrypoint forwarding to the CLI frontend.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool.csprojAdds executable build-tool project.
src/tools/hotreload-delta-gen/Directory.Build.targetsImports parent tool build targets for this tool subtree.
src/tools/hotreload-delta-gen/Directory.Build.propsSets TFM/lang/nullable and disables analyzers for imported code.
src/tools/hotreload-delta-gen/Common/TempDirectory.csAdds temp directory helper.
src/tests/FunctionalTests/WebAssembly/Browser/HotReload/ApplyUpdateReferencedAssembly/ApplyUpdateReferencedAssembly.csprojSwitches from NuGet package reference to importing in-repo targets.
src/mono/sample/mbr/console/ConsoleDelta.csprojSwitches from NuGet package reference to importing in-repo targets.
src/libraries/System.Runtime.Loader/tests/ApplyUpdate/Directory.Build.targetsImports in-repo hotreload delta gen targets for ApplyUpdate tests.
src/libraries/System.Runtime.Loader/tests/ApplyUpdate/Directory.Build.propsRemoves NuGet package reference for delta generation in ApplyUpdate tests.
src/libraries/pretest.projAdds tool/task projects to pretest build ordering.
eng/Version.Details.xmlRemoves hotreload-utils dependency entry.
eng/Version.Details.propsRemoves hotreload-utils version properties.
eng/testing/hotreload-delta-gen.targetsNew in-repo MSBuild targets replacing the NuGet-provided .targets.
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.cs
Comment thread...n/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/ScriptCapabilitiesConverter.cs
Comment thread...rosoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.cs
Comment thread...rosoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.cs
Comment thread...tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.cs
Comment thread...tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Plan/Change.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.cs

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Comment threadsrc/tools/hotreload-delta-gen/Directory.Build.props
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Co-authored-by: Alexander Köplinger <alex.koeplinger@outlook.com>
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Pull request overview
Copilot reviewed 43 out of 43 changed files in this pull request and generated 5 comments.
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.cs
Comment threadeng/testing/hotreload-delta-gen.targets
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Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Frontend.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.cs

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Pull request overview
Copilot reviewed 43 out of 43 changed files in this pull request and generated 2 comments.
Comment threadeng/testing/hotreload-delta-gen.targets
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.cs

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/ba-g unrelated infrastructure failures
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@akoeplingerakoeplingerakoeplinger approved these changes
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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Merge hotreload-utils source into runtime repo - #126512
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steveisok:merge-hotreload-utils
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Merge hotreload-utils source into runtime repo#126512
akoeplinger merged 7 commits into
dotnet:mainfrom 
steveisok:merge-hotreload-utils
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Copy the hotreload-utils source code from dotnet/hotreload-utils into src/tools/hotreload-delta-gen/ and replace the NuGet PackageReference with direct in-repo MSBuild targets, eliminating the cross-repo dependency.
Changes:
  • Add 5 projects + shared code from hotreload-utils under src/tools/hotreload-delta-gen/
  • Create eng/testing/hotreload-delta-gen.targets replacing the NuGet package's .targets file
  • Update 3 consumers (ApplyUpdate tests, WASM HotReload test, Mono sample) to import local targets instead of NuGet package
  • Add BuildTool and Tasks to src/libraries/pretest.proj for build ordering
  • Remove hotreload-utils dependency from eng/Version.Details.xml and eng/Version.Details.props
  • Suppress analyzers on imported code (RunAnalyzers=false) matching the illink pattern
@steveisok
Merge hotreload-utils source into runtime repo
d4e3330
Copy the hotreload-utils source code from dotnet/hotreload-utils into
src/tools/hotreload-delta-gen/ and replace the NuGet PackageReference
with direct in-repo MSBuild targets, eliminating the cross-repo
dependency.
Changes:
- Add 5 projects + shared code from hotreload-utils under
src/tools/hotreload-delta-gen/
- Create eng/testing/hotreload-delta-gen.targets replacing the NuGet
package's .targets file
- Update 3 consumers (ApplyUpdate tests, WASM HotReload test, Mono
sample) to import local targets instead of NuGet package
- Add BuildTool and Tasks to src/libraries/pretest.proj for build
ordering
- Remove hotreload-utils dependency from eng/Version.Details.xml and
eng/Version.Details.props
- Suppress analyzers on imported code (RunAnalyzers=false) matching
the illink pattern
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Tagging subscribers to this area: @dotnet/runtime-infrastructure

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Pull request overview
This PR vendors the hotreload-utils delta generation toolchain into the runtime repo under src/tools/hotreload-delta-gen/, replaces the external NuGet-based integration with in-repo MSBuild targets, and updates existing consumers to use the in-repo targets.
Changes:
  • Added in-repo hot reload delta generator source (tool + MSBuild task + shared data/types) under src/tools/hotreload-delta-gen/.
  • Introduced eng/testing/hotreload-delta-gen.targets to replace the NuGet package .targets and updated consumers to import it.
  • Removed the dotnet/hotreload-utils dependency from versioning files and ensured build ordering via src/libraries/pretest.proj.
Reviewed changes
Copilot reviewed 43 out of 43 changed files in this pull request and generated 9 comments.
Show a summary per file
FileDescription
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.csAdds FileSystemWatcher-to-Channel async event streaming for live delta generation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/AsyncEnumerableExtras.csAdds helper to provide an empty IAsyncEnumerable<T>.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Script/ParsedScript.csAdds parsed-script representation for scripted delta runs.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Script/Json/Parsing.csAdds JSON parsing for scripted delta input.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.csAdds runner that reads a script file and generates deltas.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/LiveRunner.csAdds runner that watches the filesystem for live edits and generates deltas.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runner.csAdds common runner orchestration (baseline setup, capability handling, delta loop).
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Plan/Change.csAdds plan/change primitives used across scripted/live modes.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Microsoft.DotNet.HotReload.Utils.Generator.csprojDefines the generator project and Roslyn/MSBuild dependencies.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/EnC/EditAndContinueCapabilities.csVendors EnC capability enum used for Roslyn Hot Reload integration.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/EditAndContinueCapabilitiesParser.csAdds parsing of capability strings into enum values.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DocResolver.csAdds file-path → DocumentId mapping for Roslyn documents.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DiffyException.csAdds typed exception with process exit code propagation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaProject.csCore delta build logic using Roslyn HotReloadService.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaOutputStreams.csWraps delta output streams and disposal semantics.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/DeltaNaming.csDefines naming convention for emitted delta artifacts per revision.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Delta.csDefines delta input record for the generation pipeline.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Config.csAdds config model and builder for scripted/live invocation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.csAdds baseline project loading and HotReloadService session setup.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.csDefines baseline artifacts bundle passed through generation pipeline.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Tasks/Microsoft.DotNet.HotReload.Utils.Generator.Tasks.csprojAdds MSBuild task project used by the new targets file.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.csAdds MSBuild task to compute incremental inputs/outputs from the delta script.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Microsoft.DotNet.HotReload.Utils.Generator.Frontend.csprojAdds CLI frontend project for the generator.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Frontend.csAdds argument parsing and exit-code handling for CLI invocation.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/UpdateHandlerInfo.csAdds JSON-serializable update handler info payload.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/ScriptCapabilitiesConverter.csAdds JSON converter to support capabilities as string or string array.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/Script.csAdds JSON model types for delta scripts.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/OutputSummary/OutputSummary.csAdds JSON model types for delta output summaries.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Data/Microsoft.DotNet.HotReload.Utils.Generator.Data.csprojAdds data-only project for shared contracts.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/README.mdDocuments the build tool usage (historical/package-oriented wording).
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/Program.csAdds entrypoint forwarding to the CLI frontend.
src/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool/Microsoft.DotNet.HotReload.Utils.Generator.BuildTool.csprojAdds executable build-tool project.
src/tools/hotreload-delta-gen/Directory.Build.targetsImports parent tool build targets for this tool subtree.
src/tools/hotreload-delta-gen/Directory.Build.propsSets TFM/lang/nullable and disables analyzers for imported code.
src/tools/hotreload-delta-gen/Common/TempDirectory.csAdds temp directory helper.
src/tests/FunctionalTests/WebAssembly/Browser/HotReload/ApplyUpdateReferencedAssembly/ApplyUpdateReferencedAssembly.csprojSwitches from NuGet package reference to importing in-repo targets.
src/mono/sample/mbr/console/ConsoleDelta.csprojSwitches from NuGet package reference to importing in-repo targets.
src/libraries/System.Runtime.Loader/tests/ApplyUpdate/Directory.Build.targetsImports in-repo hotreload delta gen targets for ApplyUpdate tests.
src/libraries/System.Runtime.Loader/tests/ApplyUpdate/Directory.Build.propsRemoves NuGet package reference for delta generation in ApplyUpdate tests.
src/libraries/pretest.projAdds tool/task projects to pretest build ordering.
eng/Version.Details.xmlRemoves hotreload-utils dependency entry.
eng/Version.Details.propsRemoves hotreload-utils version properties.
eng/testing/hotreload-delta-gen.targetsNew in-repo MSBuild targets replacing the NuGet-provided .targets.
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Util/FSWGen.cs
Comment thread...n/Microsoft.DotNet.HotReload.Utils.Generator.Data/Script/Json/ScriptCapabilitiesConverter.cs
Comment thread...rosoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.cs
Comment thread...rosoft.DotNet.HotReload.Utils.Generator.Tasks/HotReloadDeltaGeneratorComputeScriptOutputs.cs
Comment thread...tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.cs
Comment thread...tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Runners/ScriptRunner.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/Plan/Change.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.cs

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Comment thread...tNet.HotReload.Utils.Generator.Tasks/Microsoft.DotNet.HotReload.Utils.Generator.Tasks.csproj
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Comment threadsrc/tools/hotreload-delta-gen/Directory.Build.props
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Co-authored-by: Alexander Köplinger <alex.koeplinger@outlook.com>
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Pull request overview
Copilot reviewed 43 out of 43 changed files in this pull request and generated 5 comments.
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.cs
Comment threadeng/testing/hotreload-delta-gen.targets
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Comment threadeng/testing/hotreload-delta-gen.targets
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Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator.Frontend/Frontend.cs
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineProject.cs

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review requested due to automatic review settings
April 9, 2026 14:32
akoeplingerand others
added 2 commits
April 9, 2026 16:34
@akoeplinger
Apply suggestions from code review
3d083f5
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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Apply suggestion from @Copilot
3ed9426
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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Pull request overview
Copilot reviewed 43 out of 43 changed files in this pull request and generated 2 comments.
Comment threadeng/testing/hotreload-delta-gen.targets
Comment threadsrc/tools/hotreload-delta-gen/Microsoft.DotNet.HotReload.Utils.Generator/BaselineArtifacts.cs

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/ba-g unrelated infrastructure failures
@akoeplinger
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merged commit 5cb7b8c
into
dotnet:mainApr 10, 2026

170 of 176 checks passed

@akoeplinger
akoeplinger
deleted the

merge-hotreload-utils

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April 10, 2026 16:19

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Copilot left review comments
@akoeplingerakoeplingerakoeplinger approved these changes
@thaystgthaystgthaystg approved these changes
@vitek-karasvitek-karasAwaiting requested review from vitek-karasvitek-karas is a code owner

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Labels

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Status: Done


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4 participants

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