Generate .gz tars of all the binaries for macOS and Linux

Used by ghcup

Author: lukel97

.github/workflows/build.yml

@@ -135,3 +135,30 @@ jobs:
         name: haskell-language-server-wrapper-${{ runner.OS }}${{env.EXE_EXT}}.${{ steps.compress_wrapper_binary.outputs.extension }}
         path: ${{ steps.compress_wrapper_binary.outputs.path }}
 
+  # this generates .gz tarfiles containing all the GHC versions for
+  # macOS and Linux, used by ghcup
+  tar:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/download-artifact@v2
+
+      - run: |
+          for OS in Linux macOS
+          do
+            tar -czf haskell-language-server-$OS-${{ github.event.release.tag_name }}.gz haskell-language-server-$OS-*.gz
+          done
+
+      - uses: actions/upload-release-asset@v1.0.2
+        with:
+          upload_url: ${{ github.event.release.upload_url }}
+          asset_path: haskell-language-server-macOS-${{ github.event.release.tag_name }}.gz
+          asset_name: haskell-language-server-macOS-${{ github.event.release.tag_name }}.gz
+          asset_content_type: application/gzip
+
+      - uses: actions/upload-release-asset@v1.0.2
+        with:
+          upload_url: ${{ github.event.release.upload_url }}
+          asset_path: haskell-language-server-Linux-${{ github.event.release.tag_name }}.gz
+          asset_name: haskell-language-server-Linux-${{ github.event.release.tag_name }}.gz
+          asset_content_type: application/gzip