Produce trimmed down runner packages. (#1556)

* Produce trimmed down runner packages.

* feedback.

* rename.

.github/workflows/build.yml

@@ -57,6 +57,29 @@ jobs:
       working-directory: src
       if: matrix.runtime != 'linux-arm64' && matrix.runtime != 'linux-arm'
 
+    # Check runtime/externals hash
+    - name: Compute/Compare runtime and externals Hash
+      shell: bash
+      run: |
+        echo "Current dotnet runtime hash result: $DOTNET_RUNTIME_HASH"
+        echo "Current Externals hash result: $EXTERNALS_HASH"
+
+        NeedUpdate=0
+        if [ "$EXTERNALS_HASH" != "$(cat ./src/Misc/contentHash/externals/${{ matrix.runtime }})" ] ;then
+          echo Hash mismatch, Update ./src/Misc/contentHash/externals/${{ matrix.runtime }} to $EXTERNALS_HASH
+          NeedUpdate=1
+        fi
+
+        if [ "$DOTNET_RUNTIME_HASH" != "$(cat ./src/Misc/contentHash/dotnetRuntime/${{ matrix.runtime }})" ] ;then
+          echo Hash mismatch, Update ./src/Misc/contentHash/dotnetRuntime/${{ matrix.runtime }} to $DOTNET_RUNTIME_HASH
+          NeedUpdate=1
+        fi
+
+        exit $NeedUpdate
+      env:
+        DOTNET_RUNTIME_HASH: ${{hashFiles('**/_layout_trims/runtime/**/*')}}
+        EXTERNALS_HASH: ${{hashFiles('**/_layout_trims/externals/**/*')}}
+
     # Create runner package tar.gz/zip
     - name: Package Release
       if: github.event_name != 'pull_request'
@@ -67,7 +90,11 @@ jobs:
     # Upload runner package tar.gz/zip as artifact
     - name: Publish Artifact
       if: github.event_name != 'pull_request'
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v2
       with:
         name: runner-package-${{ matrix.runtime }}
-        path: _package
+        path: | 
+          _package
+          _package_trims/trim_externals
+          _package_trims/trim_runtime
+          _package_trims/trim_runtime_externals