Artifact upload

.github/workflows/buildtest.yml

@@ -5,6 +5,7 @@ on:
     branches: [ "main" ]
   pull_request:
     branches: [ "main" ]
+  workflow_dispatch:
 
 jobs:
   build:
@@ -22,4 +23,22 @@ jobs:
         cache: 'yarn'
     - run: yarn install
     - run: yarn test:ci
-    - run: yarn package
+    - name: Package the extension
+      id: package
+      # Uploaded extension name will include the version and current git sha.
+      run: |
+        yarn package
+        PACKAGE_PATH=$(find . -name 'vscode-bazel-bsp-*.vsix')
+        PACKAGE_NAME_WITH_SHA="${PACKAGE_PATH%.vsix}-$(echo $GITHUB_SHA | cut -c1-7).vsix"
+        echo "package_path=$PACKAGE_PATH" >> $GITHUB_ENV
+        echo "package_name_with_sha=$(basename $PACKAGE_NAME_WITH_SHA)" >> $GITHUB_ENV
+  upload-artifact:
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main' || github.event_name == 'workflow_dispatch'
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+    - name: Upload packaged extension artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: ${{ env.package_name_with_sha }}
+        path: ${{ env.package_path }}