Support global.json's rollForward latest* variants (#538)

* Rename toolcache directory instead of moving to tmp

This further enhances time savings seen in #213, down from a few minutes to seconds.

* Remove branch constraint on workflows used for testing

This means you are going to be notified of CI issues quicker, especially if you have to wait for a confirmation before running the workflows on your PR.

* Support global.json's rollForward latest* variants

* Remove e2e-test's dependency on Microsoft.NET.Test.Sdk

The newer versions are net8.0/net462+ only, making older .NET sdks more annoying to test

* Revert "Remove e2e-test's dependency on Microsoft.NET.Test.Sdk"

This reverts commit 14839a662649cdea79ccecc3a7ce9a91386185b4.

* Don't run unsupported versions in global.json tests

* Revert "Remove branch constraint on workflows used for testing"

This reverts commit d9dae35030.

.github/workflows/e2e-tests.yml

@@ -257,6 +257,81 @@ jobs:
         shell: pwsh
         run: __tests__/verify-dotnet.ps1 -Patterns "^9.0", "^10.0"
 
+  test-setup-global-json-rollforward-latestmajor:
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      fail-fast: false
+      matrix:
+        operating-system: [ubuntu-latest, windows-latest, macos-latest]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+      - name: Clear toolcache
+        shell: pwsh
+        run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
+      - name: Write global.json
+        shell: bash
+        run: |
+          mkdir subdirectory
+          echo '{"sdk":{"version": "3.1.0","rollForward": "latestMajor"}}' > ./subdirectory/global.json
+      - name: Setup dotnet
+        uses: ./
+        with:
+          global-json-file: ./subdirectory/global.json
+      - name: Verify dotnet
+        shell: pwsh
+        run: __tests__/verify-dotnet.ps1 -Patterns "^(?!3)"
+
+  test-setup-global-json-rollforward-latestfeature:
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      fail-fast: false
+      matrix:
+        operating-system: [ubuntu-latest, windows-latest, macos-latest]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+      - name: Clear toolcache
+        shell: pwsh
+        run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
+      - name: Write global.json
+        shell: bash
+        run: |
+          mkdir subdirectory
+          echo '{"sdk":{"version": "10.0.100","rollForward": "latestFeature"}}' > ./subdirectory/global.json
+      - name: Setup dotnet
+        uses: ./
+        with:
+          global-json-file: ./subdirectory/global.json
+      - name: Verify dotnet
+        shell: pwsh
+        run: __tests__/verify-dotnet.ps1 -Patterns "^10.0.(?!1)"
+
+  test-setup-global-json-rollforward-latestpatch:
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      fail-fast: false
+      matrix:
+        operating-system: [ubuntu-latest, windows-latest, macos-latest]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+      - name: Clear toolcache
+        shell: pwsh
+        run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
+      - name: Write global.json
+        shell: bash
+        run: |
+          mkdir subdirectory
+          echo '{"sdk":{"version": "10.0.100","rollForward": "latestPatch"}}' > ./subdirectory/global.json
+      - name: Setup dotnet
+        uses: ./
+        with:
+          global-json-file: ./subdirectory/global.json
+      - name: Verify dotnet
+        shell: pwsh
+        run: __tests__/verify-dotnet.ps1 -Patterns "^10.0.1(?!00)"
+
   test-setup-global-json-only:
     runs-on: ${{ matrix.operating-system }}
     strategy: