Migrate solution files to slnx format

Modernizes solution files by migrating from the old .sln format to the new .slnx format.
This change streamlines the project structure and improves solution management.

Author: arturcic

.gitattributes

@@ -11,6 +11,7 @@
 # Custom for Visual Studio
 *.cs     diff=csharp
 *.sln
+*.slnx
 *.csproj
 *.vbproj
 *.fsproj

.github/workflows/_prepare.yml

@@ -46,7 +46,7 @@ jobs:
     -
       name: '[Build]'
       if: steps.cache-cake.outputs.cache-hit != 'true'
-      run: dotnet build build/CI.sln --configuration=Release
+      run: dotnet build build/ --configuration=Release
     -
       name: '[Prepare]'
       shell: pwsh

.github/workflows/codeql-analysis.yml

@@ -74,7 +74,7 @@ jobs:
     -
       name: '[Prepare]'
       if: steps.cache-cake.outputs.cache-hit != 'true'
-      run: dotnet build build/CI.sln --configuration=Release
+      run: dotnet build build/ --configuration=Release
 
     -
       name: '[Build]'

.github/workflows/docs.yml

@@ -78,7 +78,7 @@ jobs:
     -
       name: '[Build]'
       if: steps.cache-cake.outputs.cache-hit != 'true'
-      run: dotnet build build/CI.sln --configuration=Release
+      run: dotnet build build/ --configuration=Release
     -
       name: '[Prepare]'
       shell: pwsh

.gitignore

@@ -84,19 +84,15 @@ Thumbs.db
 Desktop.ini
 
 _NCrunch_GitVersion
-GitVersion.sln.ide/
 .vs/
 Packages/
-site/
 /TestResult.xml
 
 ################
 # Project Rider
 ################
 
 .idea
-*.sln.iml
-
 
 ####################
 # Visual Studio Code

build/CI.sln

@@ -0,0 +1,66 @@
+<Solution>
+  <Folder Name="/actions/" />
+  <Folder Name="/actions/artifacts-attest/">
+    <File Path="../.github/actions/artifacts-attest/action.yml" />
+  </Folder>
+  <Folder Name="/actions/artifacts-restore/">
+    <File Path="../.github/actions/artifacts-restore/action.yml" />
+  </Folder>
+  <Folder Name="/actions/cache-restore/">
+    <File Path="../.github/actions/cache-restore/action.yml" />
+  </Folder>
+  <Folder Name="/actions/docker-manifests/">
+    <File Path="../.github/actions/docker-manifests/action.yml" />
+  </Folder>
+  <Folder Name="/actions/docker-publish/">
+    <File Path="../.github/actions/docker-publish/action.yml" />
+  </Folder>
+  <Folder Name="/actions/docker-test/">
+    <File Path="../.github/actions/docker-test/action.yml" />
+  </Folder>
+  <Folder Name="/scripts/">
+    <File Path="../tests/scripts/test-global-tool.sh" />
+    <File Path="../tests/scripts/test-msbuild-task.sh" />
+    <File Path="../tests/scripts/test-native-tool.sh" />
+  </Folder>
+  <Folder Name="/sln/">
+    <File Path="../.config/dotnet-tools.json" />
+    <File Path="../.gitignore" />
+    <File Path="../.remarkrc.yaml" />
+    <File Path="../global.json" />
+    <File Path="../package.json" />
+    <File Path="../src/mark-shipped.ps1" />
+    <File Path="Directory.Build.props" />
+    <File Path="Directory.Packages.props" />
+  </Folder>
+  <Folder Name="/workflows/">
+    <File Path="../.github/dependabot.yml" />
+    <File Path="../.github/workflows/ci.yml" />
+    <File Path="../.github/workflows/codeql-analysis.yml" />
+    <File Path="../.github/workflows/docs.yml" />
+    <File Path="../.github/workflows/format.yml" />
+    <File Path="../.github/workflows/homebrew.yml" />
+    <File Path="../.github/workflows/mkdocs.yml" />
+    <File Path="../.github/workflows/release.yml" />
+    <File Path="../.github/workflows/stale.yml" />
+    <File Path="../.github/workflows/winget.yml" />
+  </Folder>
+  <Folder Name="/workflows/_/">
+    <File Path="../.github/workflows/_artifacts_linux.yml" />
+    <File Path="../.github/workflows/_artifacts_windows.yml" />
+    <File Path="../.github/workflows/_build.yml" />
+    <File Path="../.github/workflows/_docker.yml" />
+    <File Path="../.github/workflows/_docker_manifests.yml" />
+    <File Path="../.github/workflows/_prepare.yml" />
+    <File Path="../.github/workflows/_publish.yml" />
+    <File Path="../.github/workflows/_unit_tests.yml" />
+  </Folder>
+  <Project Path="artifacts/artifacts.csproj" />
+  <Project Path="build/build.csproj" />
+  <Project Path="common/common.csproj" />
+  <Project Path="config/config.csproj" />
+  <Project Path="docker/docker.csproj" />
+  <Project Path="docs/docs.csproj" />
+  <Project Path="publish/publish.csproj" />
+  <Project Path="release/release.csproj" />
+</Solution>

build/CI.slnx

@@ -11,7 +11,7 @@ public sealed class Build : FrostingTask<BuildContext>
     public override void Run(BuildContext context)
     {
         context.Information("Builds solution...");
-        const string sln = "./src/GitVersion.sln";
+        const string sln = "./src/GitVersion.slnx";
 
         context.DotNetRestore(sln, new DotNetRestoreSettings
         {

build/build/Tasks/Build.cs

@@ -11,7 +11,7 @@ public override void Run(BuildContext context)
     {
         context.Information("Builds solution...");
 
-        const string sln = "./src/GitVersion.sln";
+        const string sln = "./src/GitVersion.slnx";
         context.DotNetRestore(sln,
             new()
             {