Improve run-tests.yml performance: only restore/build required projects (#33)

Author: samgibsonmoj

.github/workflows/run-tests.yml

@@ -15,13 +15,22 @@ jobs:
       - uses: actions/checkout@v5
 
       - name: Restore Dependencies (ubuntu)
-        run: dotnet restore
+        run: |
+          for project in tests/**/*.csproj; do
+            dotnet restore "$project"
+          done
     
       - name: Build (ubuntu)
-        run: dotnet build --configuration Release --no-restore
+        run: |
+          for project in tests/**/*.csproj; do
+            dotnet build "$project" --configuration Release --no-restore
+          done
 
       - name: Test (ubuntu)
-        run: dotnet test --configuration Release --no-build
+        run: |
+          for project in tests/**/*.csproj; do
+            dotnet test "$project" --configuration Release --no-build
+          done
 
   test-windows:
     runs-on: windows-2022
@@ -34,10 +43,19 @@ jobs:
           dotnet-version: 10.0.x
 
       - name: Restore Dependencies (windows)
-        run: dotnet restore
+        run: |
+          Get-ChildItem -Path tests -Filter *.csproj -Recurse | ForEach-Object {
+            dotnet restore $_.FullName
+          }
     
       - name: Build (windows)
-        run: dotnet build --configuration Release --no-restore
+        run: |
+          Get-ChildItem -Path tests -Filter *.csproj -Recurse | ForEach-Object {
+            dotnet build $_.FullName --configuration Release --no-restore
+          }
 
       - name: Test (windows)
-        run: dotnet test --configuration Release --no-build
+        run: |
+          Get-ChildItem -Path tests -Filter *.csproj -Recurse | ForEach-Object {
+            dotnet test $_.FullName --configuration Release --no-build
+          }